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Liang B, Cao J, Wang R, Fan C, Wang W, Hu X, He R, Tai F. ZmCIPK32 positively regulates germination of stressed seeds via gibberellin signal. Plant Physiol Biochem 2023; 199:107716. [PMID: 37116226 DOI: 10.1016/j.plaphy.2023.107716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 04/15/2023] [Accepted: 04/19/2023] [Indexed: 05/23/2023]
Abstract
Calcineurin B-like proteins (CBLs) as specific calcium sensors that interact with CBL-interacting protein kinases (CIPKs) play a key role in the regulation of plant development and abiotic stress tolerance. In this study, we isolated and characterized the CIPK32 gene from Zea mays. ZmCIPK32 showed that it comprised 440 amino acids and a conserved NAF motif responsible for the interaction with CBLs localized in the cytoplasm and cell membrane. The interaction of ZmCIPK32 with ZmCBL1 and ZmCBL9 demonstrated using yeast two-hybrid system and bimolecular fluorescence complementation assay required the presence of the NAF domain. Overexpression of ZmCIPK32 promoted early germination in transgenic Arabidopsis seeds relative to that observed in wild-type (WT) plants under mannitol treatment. In addition, ZmCIPK32-overexpressing plants were insensitive to treatments with exogenous abscisic acid and paclobutrazol (PBZ) at seed germination and early seedling stages. Expression levels of the key genes GA20ox and GA3ox involved in the synthesis of gibberellin (GA) were increased, whereas expression levels of genes involved in the conversion of active GA to inactive forms and GA signaling were reduced in ZmCIPK32-overexpressing plants relative to those in WT plants under mannitol and PBZ treatments. Furthermore, overexpression of ZmCIPK32 increased GA level but decreased abscisic acid level in transgenic lines compared to the respective levels in WT plants under PBZ or mannitol treatments. Our results suggest that ZmCIPK32 positively regulates seed germination under stressed conditions by modulating GA signals.
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Affiliation(s)
- Benshuai Liang
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Jiahui Cao
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Ruilin Wang
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Chenjie Fan
- NanoAgro Center, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China
| | - Wei Wang
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xiuli Hu
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Rui He
- NanoAgro Center, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Fuju Tai
- National Key Laboratory of Wheat and Maize Crop Science, College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China.
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Ren J, Zhang P, Dai Y, Liu X, Lu S, Guo L, Gou H, Mao J. Evolution of the 14-3-3 gene family in monocotyledons and dicotyledons and validation of MdGRF13 function in transgenic Arabidopsis thaliana. Plant Cell Rep 2023:10.1007/s00299-023-03035-4. [PMID: 37253815 DOI: 10.1007/s00299-023-03035-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/15/2023] [Indexed: 06/01/2023]
Abstract
KEY MESSAGE The 14-3-3 family is more highly conserved among monocotyledons, and overexpression of MdGRF13 improved drought and salt tolerance in transgenic Arabidopsis thaliana. The 14-3-3 are highly conserved regulatory proteins found in eukaryotes and play an essential role in plant growth, development and stress response. However, the 14-3-3 gene family evolution in monocotyledons and dicotyledons and the biological functions of the MdGRF13 under abiotic stress remain unknown. In our study, 195 members of the 14-3-3 family were identified from 12 species and divided into ε group and the Non-ε group. Synteny analysis within the 14-3-3 family indicated that segmental duplication events contributed to the expansion of the family. Selective pressure analysis indicated that purifying selection was a vital force in the 14-3-3 genes evolution, and monocotyledons had a lower million years ago (Mya) mean values than dicotyledons. Meanwhile, the codon adaptation index (CAI) and frequency of optical codons (FOP) are higher and the effective number of codons (Nc) is lower in monocotyledons 14-3-3 genes compared to dicotyledons. Moreover, the yeast two-hybrid (Y2H) demonstrated that MdGRF13 interacts with MdRD22, MdLHP1a and MdMORF1. Significantly, the malondialdehyde (MDA) content and relative conductivity were decreased, while the superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activities were increased in transgenic Arabidopsis compared to the wild type (WT) under drought and salt stress. These results suggest that overexpression of MdGRF13 significantly improved the tolerance to drought and salt stress in transgenic Arabidopsis. Thus, our results provide a theoretical basis for exploring the evolution and function of the 14-3-3 gene family in monocotyledons and dicotyledons.
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Affiliation(s)
- Jiaxuan Ren
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Pan Zhang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Yingbao Dai
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Xiaohuan Liu
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Shixiong Lu
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Lili Guo
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Huimin Gou
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China
| | - Juan Mao
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070, China.
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Zhang B, Feng H, Ge W, Wang X, Zhang J, Ji R. BrUFO positively regulates the infection of Chinese cabbage by Plasmodiophora brassicae. Front Plant Sci 2023; 14:1128515. [PMID: 36968418 PMCID: PMC10034201 DOI: 10.3389/fpls.2023.1128515] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Chinese cabbage is one of the most important vegetable crops in China. However, the clubroot disease caused by the infection of Plasmodiophora brassicae (P. brassicae) has seriously affected the yield and quality of Chinese cabbage. In our previous study, BrUFO gene was found to be significantly up-regulated in diseased roots of Chinese cabbage after inoculation with P. brassicae. UFO (UNUSUAL FLORAL ORGANS) have the properties of substrate recognition during ubiquitin-mediated proteolysis. A variety of plant can activate immunity response through the ubiquitination pathway. Therefore, it is very important to study the function of UFO in response to P. brassicae. METHODS In this study, The expression pattern of BrUFO Gene was measured by qRT-PCR and In situ Hybridization (ISH). The expression location of BrUFO in cells was determined by subcellular localization. The function of BrUFO was verified by Virus-induced Gene Silencing (VIGS). proteins interacting with BrUFO protein were screened by yeast two-hybrid. RESULTS Quantitative real-time polymerase chain reactions (qRT-PCR) and in situ hybridization analysis showed that expression of BrUFO gene in the resistant plants was lower than that in susceptible plants. Subcellular localization analysis showed that BrUFO gene was expressed in the nucleus. Virus-induced gene silencing (VIGS) analysis showed that silencing of BrUFO gene reduced the incidence of clubroot disease. Six proteins interacting with BrUFO protein were screened by Y2H assay. Two of them (Bra038955, a B-cell receptor-associated 31-like protein and Bra021273, a GDSL-motif esterase/acyltransferase/lipase Enzyme) were confirmed to strongly interact with BrUFO protein. DISCUSSION BrUFO gene should be a key gene of chinese cabbage against the infection of P. brassicae. BrUFO gene silencing improves the resistance of plants to clubroot disease. BrUFO protein may interact with CUS2 to induce ubiquitination in PRR-mediated PTI reaction through GDSL lipases, so as to achieve the effect of Chinese cabbage against the infection of P. brassicae.
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Castandet B, Lurin C, Delannoy É, Monachello D. High-Throughput Protein-Protein Interactions Screening Using Pool-Based Liquid Yeast Two-Hybrid Pipeline. Methods Mol Biol 2023; 2690:161-177. [PMID: 37450147 DOI: 10.1007/978-1-0716-3327-4_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Because of its adaptability to high-throughput approaches and a low operating cost, the yeast two-hybrid (Y2H) assay remains the most widely used one for high-throughput protein-protein interactions (PPI) mapping experiments. Here we provide a detailed protocol for a liquid culture-based high-throughput binary protein-protein Y2H screen pipeline of a pool of 50 proteins used as baits against a collection of ~12,000 Arabidopsis proteins encoded by sequence-verified open reading frames (ORFs).
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Affiliation(s)
- Benoît Castandet
- Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris-Saclay, Université Paris-Cité, CNRS, INRAE, Université Evry, Gif sur Yvette, France
| | - Claire Lurin
- Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris-Saclay, Université Paris-Cité, CNRS, INRAE, Université Evry, Gif sur Yvette, France
| | - Étienne Delannoy
- Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris-Saclay, Université Paris-Cité, CNRS, INRAE, Université Evry, Gif sur Yvette, France
| | - Dario Monachello
- Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris-Saclay, Université Paris-Cité, CNRS, INRAE, Université Evry, Gif sur Yvette, France.
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Furukawa Y, Matsumoto K, Nakagome K, Shintani A, Sue K. Zinc-mediated interaction of copper chaperones through their heavy-metal associated domains. J Trace Elem Med Biol 2023; 75:127111. [PMID: 36435150 DOI: 10.1016/j.jtemb.2022.127111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/24/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND A copper chaperone CCS is a multi-domain protein that supplies a copper ion to Cu/Zn-superoxide dismutase (SOD1). Among the domains of CCS, the N-terminal domain (CCSdI) belongs to a heavy metal-associated (HMA) domain, in which a Cys-x-x-Cys (CxxC) motif binds a heavy metal ion. It has hence been expected that the HMA domain in CCS has a role in the metal trafficking; however, the CxxC motif in the domain is dispensable for supplying a copper ion to SOD1, leaving an open question on roles of CCSdI in CCS. METHODS To evaluate protein-protein interactions of CCS through CCSdI, yeast two-hybrid assay, a pull-down assay using recombinant proteins, and the analysis with fluorescence resonance energy transfer were performed. RESULTS We found that CCS specifically interacted with another copper chaperone HAH1, a HMA domain protein, through CCSdI. The interaction between CCSdI and HAH1 was not involved in the copper supply from CCS to SOD1 but was mediated by a zinc ion ligated with Cys residues of the CxxC motifs in CCSdI and HAH1. CONCLUSION While physiological significance of the interaction between copper chaperones awaits further investigation, we propose that CCSdI would have a role in the metal-mediated interaction with other proteins including heterologous copper chaperones.
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Affiliation(s)
| | - Kyoka Matsumoto
- Department of Chemistry, Keio University, Yokohama 223-8522, Japan
| | - Kenta Nakagome
- Department of Chemistry, Keio University, Yokohama 223-8522, Japan
| | - Atsuko Shintani
- Department of Chemistry, Keio University, Yokohama 223-8522, Japan
| | - Kaori Sue
- Department of Chemistry, Keio University, Yokohama 223-8522, Japan
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Dutta S, Smith MD. Detection of Protein-Protein Interactions Utilizing the Split-Ubiquitin Membrane-Based Yeast Two-Hybrid System. Methods Mol Biol 2023; 2690:37-57. [PMID: 37450135 DOI: 10.1007/978-1-0716-3327-4_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Identifying the interactors of a protein is a key step in understanding its possible cellular function(s). Among the various methods that can be used to study protein-protein interactions (PPIs), the yeast two-hybrid (Y2H) assay is one of the most standardized, sensitive, and cost-effective in vivo methods available. The most commonly used GAL4-based Y2H system utilizes the yeast transcription factor GAL4 to detect interactions between soluble proteins. By virtue of involving a transcription factor, the protein-protein interactions occur in the nucleus. The split-ubiquitin Y2H system offers an alternative to the traditional GAL4-based Y2H system and takes advantage of the reconstitution of split-ubiquitin in the cytosol to identify interactions between two proteins. Moreover, new membranous and soluble interacting partner(s) can be identified by screening a target protein against proteins produced from a cDNA library using this system.
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Affiliation(s)
- Siddhartha Dutta
- Department of Microbiology and Biotechnology, Sister Nivedita University, Kolkata, West Bengal, India
| | - Matthew D Smith
- Department of Biology, Wilfrid Laurier University, Waterloo, ON, Canada.
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Elmore JM, Velásquez-Zapata V, Wise RP. Next-Generation Yeast Two-Hybrid Screening to Discover Protein-Protein Interactions. Methods Mol Biol 2023; 2690:205-222. [PMID: 37450150 DOI: 10.1007/978-1-0716-3327-4_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Yeast two-hybrid is a powerful approach to discover new protein-protein interactions. Traditional methods involve screening a target protein against a cDNA expression library and assaying individual positive colonies to identify interacting partners. Here we describe a simple approach to perform yeast two-hybrid screens of a cDNA expression library in batch liquid culture. Positive yeast cell populations are enriched under selection and then harvested en masse. Prey cDNAs are amplified and used as input for next-generation sequencing libraries for identification, quantification, and ranking.
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Affiliation(s)
- J Mitch Elmore
- USDA-Agricultural Research Service, Cereal Disease Laboratory, St. Paul, MN, USA.
- USDA-Agricultural Research Service, Corn Insects and Crop Genetics Research, Ames, IA, USA.
- Department of Plant Pathology, Entomology and Microbiology, Iowa State University, Ames, IA, USA.
| | - Valeria Velásquez-Zapata
- Department of Plant Pathology, Entomology and Microbiology, Iowa State University, Ames, IA, USA
- Program in Bioinformatics & Computational Biology, Iowa State University, Ames, IA, USA
| | - Roger P Wise
- USDA-Agricultural Research Service, Corn Insects and Crop Genetics Research, Ames, IA, USA
- Department of Plant Pathology, Entomology and Microbiology, Iowa State University, Ames, IA, USA
- Program in Bioinformatics & Computational Biology, Iowa State University, Ames, IA, USA
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Rho SB, Byun HJ, Kim BR, Lee CH. Snail Promotes Cancer Cell Proliferation via Its Interaction with the BIRC3. Biomol Ther (Seoul) 2022; 30:380-388. [PMID: 35711139 PMCID: PMC9252879 DOI: 10.4062/biomolther.2022.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 05/22/2022] [Accepted: 05/28/2022] [Indexed: 11/23/2022] Open
Abstract
Snail is implicated in tumour growth and metastasis and is up-regulated in various human tumours. Although the role of Snails in epithelial-mesenchymal transition, which is particularly important in cancer metastasis, is well known, how they regulate tumour growth is poorly described. In this study, the possible molecular mechanisms of Snail in tumour growth were explored. Baculoviral inhibitor of apoptosis protein (IAP) repeat-containing protein 3 (BIRC3), a co-activator of cell proliferation during tumourigenesis, was identified as a Snail-binding protein via a yeast two-hybrid system. Since BIRC3 is important for cell survival, the effect of BIRC3 binding partner Snail on cell survival was investigated in ovarian cancer cell lines. Results revealed that Bax expression was activated, while the expression levels of anti-apoptotic proteins were markedly decreased by small interfering RNA (siRNA) specific for Snail (siSnail). siSnail, the binding partner of siBIRC3, activated the tumour suppressor function of p53 by promoting p53 protein stability. Conversely, BIRC3 could interact with Snail, for this reason, the possibility of BIRC3 involvement in EMT was investigated. BIRC3 overexpression resulted in a decreased expression of the epithelial marker and an increased expression of the mesenchymal markers. siSnail or siBIRC3 reduced the mRNA levels of matrix metalloproteinase (MMP)-2 and MMP-9. These results provide evidence that Snail promotes cell proliferation by interacting with BIRC3 and that BIRC3 might be involved in EMT via binding to Snail in ovarian cancer cells. Therefore, our results suggested the novel relevance of BIRC3, the binding partner of Snail, in ovarian cancer development.
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Affiliation(s)
- Seung Bae Rho
- Division of Cancer Biology, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea
| | - Hyun-Jung Byun
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul/Goyang 04620, Republic of Korea
| | - Boh-Ram Kim
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul/Goyang 04620, Republic of Korea
| | - Chang Hoon Lee
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul/Goyang 04620, Republic of Korea
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Ren Y, Li M, Shi Y, Liu P, Wu Q, Yang Y, Zhang L, Jin Y. Schistosoma japonicum proteins that interact with the gynecophoral canal protein identified using a yeast two-hybrid system. Exp Parasitol 2022; 239:108305. [PMID: 35714725 DOI: 10.1016/j.exppara.2022.108305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 06/08/2022] [Accepted: 06/08/2022] [Indexed: 11/27/2022]
Abstract
The large amount of schistosome eggs produced by mature female worms not only induce major pathological damage to the host but also lead to the transmission of schistosomiasis. Mature female schistosome worms need constant pairing contact with a male partner as male signaling is indispensable to female growth, development, and reproduction. The gynecophoral canal protein (GCP), a cell-surface glycoprotein, plays a potential role in the interaction between males and females and in stimulating female development and maturation. In this study, a yeast two-hybrid cDNA library of Schistosoma japonicum (Sj) parasites 18 days post-infection (dpi) was constructed; the Sjgcp gene was inserted into a pGBKT7-BD bait plasmid and used as a bait protein to screen for its molecular interactions using a yeast mating procedure. Twenty-four prey proteins that interacted with the SjGCP were selected after excluding false positives; the interactions between S.japonicum lethal giant larvae (SjLGL) and SjGCP, S.japonicum type V collagen (SjColV) and SjGCP, were verified by co-immunoprecipitation. The RNA interference against SjGCP, SjColV and SjGCP + SjColV led to severe underdevelopment of tegument in male worms and vitelline globules in female worms as well as reduced reproductive capacity of the females. Collectively, SjGCP and its interacting proteins may play pivotal roles in growth and development. The findings also suggested that SjGCP and its interacting protein partners might represent new candidate targets for drug development against schistosomiasis.
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Affiliation(s)
- Yuqi Ren
- National Reference Laboratory for Animal Schistosomiasis, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Mian Li
- National Reference Laboratory for Animal Schistosomiasis, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yanli Shi
- National Reference Laboratory for Animal Schistosomiasis, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Pingping Liu
- National Reference Laboratory for Animal Schistosomiasis, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Qijin Wu
- National Reference Laboratory for Animal Schistosomiasis, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Yunxia Yang
- National Reference Laboratory for Animal Schistosomiasis, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Longxian Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yamei Jin
- National Reference Laboratory for Animal Schistosomiasis, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China; Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China.
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Shiraku ML, Magwanga RO, Zhang Y, Hou Y, Kirungu JN, Mehari TG, Xu Y, Wang Y, Wang K, Cai X, Zhou Z, Liu F. Late embryogenesis abundant gene LEA3 (Gh_A08G0694) enhances drought and salt stress tolerance in cotton. Int J Biol Macromol 2022; 207:700-714. [PMID: 35341886 DOI: 10.1016/j.ijbiomac.2022.03.110] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 03/17/2022] [Indexed: 11/05/2022]
Abstract
Plants have evolved a complex and organized response to abiotic stress that involves physiological and metabolic reprogramming, transcription control, epigenetic regulation, and expressions of thousand interacting genes for instance the late embryogenesis abundant (LEA) proteins are expressed in multiple environmental variables during the plant developmental period, and thus play critical role in enhancing drought and salt stress tolerance. A comprehensive molecular and functional characterization of the LEA3 gene was carried out in cotton under abiotic stress conditions in order to elucidate their functions. Seventy eight genes were identified in cotton, and were clustered into six clades moreover; the LEA genes were more upregulated in the tissues of the tetraploid cotton compared to the diploid type. A key gene, Gh_A08G0694 was the most upregulated, and was knocked in tetraploid cotton, the knocked out significantly increased the susceptibility of cotton plants to salinity and drought stresses, moreover, several ABA/stress-associated genes were down regulated. Similarly, overexpression of the key gene, significantly increased tolerance of the overexpressed plants to drought and salinity stress. The key gene is homologous to GhLEA3 protein, found to have strong interaction to key abiotic stress tolerance genes, voltage-dependent anion channel 1 (VDAC1) and glyceraldehyde-3-phosphate dehydrogenase A (gapA).
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Affiliation(s)
- Margaret L Shiraku
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Richard Odongo Magwanga
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China; School of Biological and Physical Sciences (SBPS), Main Campus, Jaramogi Oginga Odinga University of Science and Technology (JOOUST), Main Campus, P.O. Box 210-40601, Bondo, Kenya
| | - Yuanyuan Zhang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Yuqing Hou
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Joy Nyangasi Kirungu
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Teame Gereziher Mehari
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Yanchao Xu
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Yuhong Wang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Kunbo Wang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China.
| | - Xiaoyan Cai
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China; School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan 450001, People's Republic of China.
| | - Zhongli Zhou
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China.
| | - Fang Liu
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China; School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan 450001, People's Republic of China.
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Abstract
The yeast two-hybrid (Y2H) system is an effective means of detecting protein-protein interactions through the activation of reporter gene expression. This system has also displayed several useful applications, including rapidly revealing unexpected interactors of known proteins, detecting regions that take part in protein-protein interactions, and characterizing the orchestration of protein interactions in metabolic pathways. The Y2H system has been widely utilized in the study of plant virology to investigate interactions between viral proteins and host, vector, or viral proteins. This technology has been successful in enhancing the understanding of viral structure and assembly, replication, viral gene expression and regulation, viral movement, pathogenicity, and the network of viral proteins. Here, we provide the methods to uncover novel interactors of viral proteins via screening cDNA libraries of plant host and insect vectors, using nuclear and membrane Y2H systems, respectively.
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Affiliation(s)
- Qian Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Taiyun Wei
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China.
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Conde JN. Yeast Two-Hybrid System for Mapping Novel Dengue Protein Interactions. Methods Mol Biol 2022; 2409:119-132. [PMID: 34709639 DOI: 10.1007/978-1-0716-1879-0_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Yeast two-hybrid (Y2H) systems are one of the principal choices for identifying novel binary protein-protein interactions (PPIs). Since its development, it has contributed for the discovery of several PPIs between pathogens and host, allowing not only a comprehensive look at the disease pathogenesis but also for therapeutic strategies. Identification of viral-host PPIs that impact on viral replication and pathogenesis can lead to new advances in antiviral therapies such as the development of drug candidates and vaccine design. In this chapter, we revise the Y2H key parameters necessary for screening PPIs and discuss the possible approaches for using this technique to identify novel dengue-host protein interactions.
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Affiliation(s)
- Jonas Nascimento Conde
- Department of Microbiology and Immunology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA.
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13
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Heintz VJ, Wang L, LaCount DJ. NanoLuc luciferase as a quantitative yeast two-hybrid reporter. FEMS Yeast Res 2021; 21:6481623. [PMID: 34940882 PMCID: PMC8755890 DOI: 10.1093/femsyr/foab069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/21/2021] [Indexed: 12/25/2022] Open
Abstract
The yeast two-hybrid (Y2H) assay is a powerful technique to identify protein-protein interactions. However, the auxotrophic markers that are the most common Y2H reporters take several days to yield data and require subjective assessment of semiquantitative data to identify interactions. Several reporters have been developed to overcome these disadvantages, but there is still a need for a Y2H reporter that is objective, fast and able to be performed with common laboratory equipment. In this report, we replaced the ADE2 reporter in BK100 with NanoLuc luciferase to yield BK100Nano. We developed an optimized assay to measure NanoLuc activity in 96-well plates and analyzed a set of 74 pairs identified in Y2H library screens, which revealed 44 positive interactions using an unbiased cutoff based on the mean luminescence of negative control samples. The same set was also tested for growth on Y2H selection medium via expression of the HIS3 reporter. We found 91% agreement between the two assays, with discrepancies attributed to weak interactions that displayed variable growth on Y2H medium. Overall, the new BK100Nano strain establishes a quantitative and convenient method to identify Y2H interactions and has potential to be applied to a high throughput manner.
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Affiliation(s)
- Veronica J Heintz
- Department of Medicinal Chemistry and Molecular Pharmacology, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA
- Purdue Institute of Inflammation, Immunology and Infectious Disease Purdue University, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Ling Wang
- Department of Medicinal Chemistry and Molecular Pharmacology, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA
- Purdue Institute of Inflammation, Immunology and Infectious Disease Purdue University, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Douglas J LaCount
- Corresponding author: Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, DLR 442, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA. Tel: 765-496-7835; E-mail:
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Wang X, Jin S, Chang X, Li G, Zhang L, Jin S. Two interaction proteins between AtPHB6 and AtSOT12 regulate plant salt resistance through ROS signaling. Plant Physiol Biochem 2021; 169:70-80. [PMID: 34773804 DOI: 10.1016/j.plaphy.2021.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/12/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
In the past, the PHB gene function was mainly focused on anti-cell proliferation and antitumor effects. But the molecular mechanism of the PHB gene regarding saline and oxidative stresses is unclear. To study the role of AtPHB6 in salt and oxidative stress, AtPHB6 was cloned from A. thaliana. Bioinformatics analysis showed that AtPHB6 was closely related to AtPHB1 and AtPHB2, which are both type II PHB. RT-qPCR results indicated that the AtPHB6 in the leaves and roots of A. thaliana was obviously induced under different stress treatments. AtPHB6-overexpressing plants were larger and more lush than wild-type and mutant plants when placed under stress treatments during seed germination. The root length and fresh weight of AtPHB6 transgenic plants showed the best resistance compared to wild-type plants under different treatments, in contrast, the AtPHB6 mutants had the worst resistance during the seedling stage. AtSOT12 was an interacting protein of AtPHB6, which screened by yeast two-hybrid system. The interaction between the two proteins were further confirmed using in vitro pull-down experiments and in vivo BiFC experiments. Subcellular localization showed both AtPHB6 and AtSOT12 protein expressed in the nucleus and cytoplasm. The H2O2 content in both the transgenic AtPHB6 and AtSOT12 plants were lower than that in the wild type under stresses. Thus, AtPHB6 increased plant resistance to salt stress and interacted with the AtSOT12 protein.
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Affiliation(s)
- Xiaolu Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Shengxuan Jin
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China; College of Forestry, Northeast Forestry University, Harbin, 150040, China
| | - Xu Chang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Guanrong Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Ling Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Shumei Jin
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, 150040, China.
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Zheng Q, You YL, Li F, Lai QN, Chen JM. Interaction between 038R and 125R of Cherax quadricarinatus iridovirus (CQIV) and their effects on virus replication. J Invertebr Pathol 2021; 187:107699. [PMID: 34838791 DOI: 10.1016/j.jip.2021.107699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/15/2021] [Accepted: 11/22/2021] [Indexed: 11/28/2022]
Abstract
Iridovirids are a group icosahedral viruses containing linear double-stranded DNA, and mainly infect invertebrates and poikilothermic vertebrates. Cherax quadricarinatus iridovirus (CQIV) is a new species of the family Iridoviridae and can cause high mortality in shrimps. In CQIV genome, there are 25 conserved genes and the putative products are involved in several viral processes. In this study, three core protein including CQIV-032R, CQIV-125R and CQIV-160L were identified to interact with CQIV-038R by yeast two-hybrid (Y2H), and the interaction between CQIV-038R and CQIV-125R was further confirmed by co-immunoprecipitation (Co-IP) assays. In the expression system, EGFP-038R and mCherry-125R were colocalized in the cytoplasm when co-expressed in Sf9 cells. Moreover, silencing the expression of 038R, 125R or both of these two proteins respectively in C. quadricarinatus cells by small interfering RNAs showed significantly inhibit CQIV replication. Collectively, we identified the interaction between 038R and 125R, and demonstrated they are essential for CQIV replication.
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Affiliation(s)
- Qin Zheng
- Institute of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Yan-Lin You
- College of Biological Sciences and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Fang Li
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Qing-Na Lai
- Institute of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Jian-Ming Chen
- Institute of Oceanography, Minjiang University, Fuzhou 350108, China.
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16
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Sahu AK, Sanan-Mishra N. Interaction between βC1 of satellite and coat protein of Chili leaf curl virus plays a crucial role in suppression of host RNA silencing. Appl Microbiol Biotechnol 2021; 105:8329-8342. [PMID: 34651252 DOI: 10.1007/s00253-021-11624-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/20/2021] [Accepted: 09/26/2021] [Indexed: 10/20/2022]
Abstract
The monopartite Chili leaf curl virus (ChiLCV) and its β-satellite (ChiLCB) have been found to co-exist in infected plants. The ability of βC1 protein to suppress RNA silencing was investigated using an in-house developed in-planta reversal of silencing assay, using Nicotiana tabacum lines harboring green fluorescent protein (GFP) silenced by short hairpin GFP (ShGFP). Transient expression of recombinant βC1 complemented and increased the suppressor activity of ChiLCV coat protein (CP), and this was confirmed by molecular analysis. In silico analysis followed by a yeast two-hybrid screen-identified ChiLCV-CP as the interacting partner of the ChiLCB-βC1 protein. Subcellular localization through confocal analysis revealed that when βC1 and ChiLCV-CP were co-present, the fluorescence was localized in the cytoplasm indicating that nuclear localization of both proteins was obstructed. The cytoplasmic compartmentalization of the two viral suppressors of RNA silencing may be responsible for the enhanced suppression of the host gene silencing. This study presents evidence on the interaction of ChiLCV-CP and βC1 proteins and indicates that ChiLCB may support the ChiLCV in overcoming host gene silencing to cause Chili leaf curl disease. KEY POINTS: • CP of ChiLCV and βC1 of ChiLCB contain RNA silencing suppression activity • The RNA silencing suppression activity of ChiLCB-βC1 complements that of ChiLCV-CP • There is a direct interaction between ChiLCB-βC1 and ChiLCV-CP.
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Affiliation(s)
- Anurag Kumar Sahu
- Plant RNAi Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Neeti Sanan-Mishra
- Plant RNAi Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.
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Xie C, Wang Z, Li Y, Wu F, Lu Y, Xia H, Tang J, Jian J, Kwok KW. Conservation of structural and interactional features of CD226 and Necl5 molecules from Nile tilapia (Oreochromis niloticus). Fish Shellfish Immunol 2021; 116:74-83. [PMID: 34033910 DOI: 10.1016/j.fsi.2021.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/16/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
CD226 interacts with its ligand Necl5 as a costimulatory signal. In this study, we cloned a CD226 from Nile tilapia (Oreochromis niloticus, named OnCD226) and a Necl5 (named OnNecl5). The open reading frame of OnCD226 was 1071 bp, encoding a protein of 356 amino acids. Sequence alignment analysis indicated that OnCD226 contained two Ig-like domains in ectodomain. The open reading frame of OnNecl5 was 1155 bp, encoding a protein of 384 amino acids, and there are three lg-like domains in the extracellular domain. In healthy tilapia, OnCD226 was distributed in all tested tissues and relatively higher in the brain, while OnNecl5 was relatively higher in the skin. After Streptococcus agalactiae infection, OnCD226 has the same up-regulated expression pattern as OnNecl5 in different tissues. After HKLs stimulation with S. agalactiae and Poly I:C, respectively. OnCD226 was significantly up-regulated (0.01 < p < 0.05) at 12 h and extremely significant up-regulation was observed (p < 0.01) at 48 h and 96 h, the peak was observed at 96 h after stimulation by S. agalactiae. After stimulation by Poly I:C, OnCD226 expression was extremely significant (p < 0.01) at 72 h and 96 h, the peak was observed at 96 h. After stimulation by Keyhole limpet hemocyanin (KLH), a classical T cell-dependent antigen, the expression of OnCD226 was significantly up-regulated in blood, head kidney, spleen, and thymus. Moreover, when compared with the first challenge, the gene expression of OnCD226 which response to the second challenge was up-regulated earlier. Subcellular co-localization studies showed that OnCD226 and OnNecl5 were distributed mainly in the cytomembrane. Yeast two-hybrid results, indicated a strong interaction between OnCD226 and OnNecl5. These results suggested that OnCD226 plays an important role during pathogens infection, and the interaction between CD226 and Necl5 is conserved in Nile tilapia.
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Affiliation(s)
- Caixia Xie
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524025, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang, 524025, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518120, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 51820, China
| | - Zhiwen Wang
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524025, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang, 524025, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518120, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 51820, China
| | - Yuan Li
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524025, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang, 524025, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518120, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 51820, China
| | - Fan Wu
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524025, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang, 524025, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518120, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 51820, China
| | - Yishan Lu
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524025, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang, 524025, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518120, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 51820, China.
| | - Hongli Xia
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524025, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang, 524025, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518120, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 51820, China
| | - Jufen Tang
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524025, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang, 524025, China
| | - Jichang Jian
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524025, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Zhanjiang, 524025, China
| | - Kevin Wh Kwok
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
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Hao Y, Chu J, Shi L, Ma C, Hui L, Cao X, Wang Y, Xu M, Fu A. Identification of interacting proteins of Arabidopsis cyclophilin38 (AtCYP38) via multiple screening approaches reveals its possible broad functions in chloroplasts. J Plant Physiol 2021; 264:153487. [PMID: 34358944 DOI: 10.1016/j.jplph.2021.153487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
AtCYP38, a thylakoid lumen localized immunophilin, is found to be essential for photosystem II assembly and maintenance, but how AtCYP38 functions in chloroplast remains unknown. Based on previous functional studies and its crystal structure, we hypothesize that AtCYP38 should function via binding its targets or cofactors in the thylakoid lumen. To identify potential interacting proteins of AtCYP38, we first adopted ATTED-II and STRING web-tools, and found 12 proteins functionally related to AtCYP38. We then screened a yeast two-hybrid library including an Arabidopsis genome wide cDNA with different domain of AtCYP38, and five thylakoid lumen-localized targets were identified. In order to specifically search interacting proteins of AtCYP38 in the thylakoid lumen, we generated a yeast two-hybrid mini library including the thylakoid lumenal proteins and lumenal fractions of thylakoid membrane proteins, and we obtained six thylakoid membrane proteins and nine thylakoid lumenal proteins as interacting proteins of AtCYP38. The interactions between AtCYP38 and several potential targets were further confirmed via pull-down and co-immunoprecipitation assays. Together, a couple of new potential candidate interacting proteins of AtCYP38 were identified, and the results will lay a foundation for unveiling the regulatory mechanisms in photosynthesis by AtCYP38.
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Affiliation(s)
- Yaqi Hao
- Chinese Education Ministry's Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, College of Life Sciences, Northwest University, China P.R.229 North Taibai Road, Xi'an, Shaanxi, 710069, China
| | - Jiashu Chu
- Chinese Education Ministry's Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, College of Life Sciences, Northwest University, China P.R.229 North Taibai Road, Xi'an, Shaanxi, 710069, China
| | - Lujing Shi
- Chinese Education Ministry's Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, College of Life Sciences, Northwest University, China P.R.229 North Taibai Road, Xi'an, Shaanxi, 710069, China
| | - Cong Ma
- Chinese Education Ministry's Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, College of Life Sciences, Northwest University, China P.R.229 North Taibai Road, Xi'an, Shaanxi, 710069, China
| | - Liangliang Hui
- Chinese Education Ministry's Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, College of Life Sciences, Northwest University, China P.R.229 North Taibai Road, Xi'an, Shaanxi, 710069, China
| | - Xiaofei Cao
- Chinese Education Ministry's Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, College of Life Sciences, Northwest University, China P.R.229 North Taibai Road, Xi'an, Shaanxi, 710069, China
| | - Yuhua Wang
- Chinese Education Ministry's Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, College of Life Sciences, Northwest University, China P.R.229 North Taibai Road, Xi'an, Shaanxi, 710069, China
| | - Min Xu
- Chinese Education Ministry's Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, College of Life Sciences, Northwest University, China P.R.229 North Taibai Road, Xi'an, Shaanxi, 710069, China
| | - Aigen Fu
- Chinese Education Ministry's Key Laboratory of Western Resources and Modern Biotechnology, Key Laboratory of Biotechnology Shaanxi Province, College of Life Sciences, Northwest University, China P.R.229 North Taibai Road, Xi'an, Shaanxi, 710069, China.
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Jia Y, Kowalski P, Lopez I. Using yeast two-hybrid system and molecular dynamics simulation to detect venom protein-protein interactions. Curr Res Toxicol 2021; 2:93-8. [PMID: 34345854 DOI: 10.1016/j.crtox.2021.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/14/2021] [Accepted: 02/19/2021] [Indexed: 12/13/2022] Open
Abstract
The venom protein-protein interactions in snake venom remain largely unknown. Y2H coupled with MD simulations was used to detect venom protein interactions. Venom PLA2s interact with themselves and Lys49 PLA2 interacts with venom CRISP.
Proteins and peptides are major components of snake venom. Venom protein transcriptomes and proteomes of many snake species have been reported; however, snake venom complexity (i.e., the venom protein-protein interactions, PPIs) remains largely unknown. To detect the venom protein interactions, we used the most common snake venom component, phospholipase A2s (PLA2s) as a “bait” to identify the interactions between PLA2s and 14 of the most common proteins in Western diamondback rattlesnake (Crotalus atrox) venom by using yeast two-hybrid (Y2H) analysis, a technique used to detect PPIs. As a result, we identified PLA2s interacting with themselves, and lysing-49 PLA2 (Lys49 PLA2) interacting with venom cysteine-rich secretory protein (CRISP). To reveal the complex structure of Lys49 PLA2-CRISP interaction at the structural level, we first built the three-dimensional (3D) structures of Lys49 PLA2 and CRISP by a widely used computational program-MODELLER. The binding modes of Lys49 PLA2-CRISP interaction were then predicted through three different docking programs including ClusPro, ZDOCK and HADDOCK. Furthermore, the most likely complex structure of Lys49 PLA2-CRISP was inferred by molecular dynamic (MD) simulations with GROMACS software. The techniques used and results obtained from this study strengthen the understanding of snake venom protein interactions and pave the way for the study of animal venom complexity.
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Sharma A, Kumar G, Sharma S, Walia K, Chouhan P, Mandal B, Tuli A. Methods for binding analysis of small GTP-binding proteins with their effectors. Methods Cell Biol 2021; 166:235-250. [PMID: 34752335 DOI: 10.1016/bs.mcb.2021.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Proteins often do not function as a single biomolecular entity; instead, they frequently interact with other proteins and biomolecules forming complexes. There is increasing evidence depicting the essentiality of protein-protein interactions (PPIs) governing a wide array of cellular processes. Thus, it is crucial to understand PPIs. Commonly used approaches like genetic (e.g., Yeast Two-Hybrid, Y2H), optical (e.g., Surface Plasmon Resonance, SPR; Fluorescence Resonance Energy Transfer, FRET), and biochemical have rendered ease in developing interactive protein maps as freely available information in protein databases on the web. The underlying basis of traditional protein interaction analysis is the core of biochemical methodologies providing direct evidence of interactions. Co-Immunoprecipitation (Co-IP) is a powerful biochemical technique that facilitates identifying novel interacting partners of a protein of interest in vivo, allowing specific capture of their complexes on an immunoglobulin. Here, using Arf-like (Arl) GTPase-8b (Arl8b) and Pleckstrin Homology Domain-Containing Family M Member 1 (PLEKHM1) as an example of small GTPase-effector pair, we provide a detailed protocol for performing Y2H and Co-IP assays to confirm the interaction between a small GTPase and its effector protein.
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Affiliation(s)
- Abhishek Sharma
- Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh, India
| | - Gaurav Kumar
- Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh, India
| | - Sheetal Sharma
- Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh, India
| | - Kshitiz Walia
- Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh, India
| | - Priya Chouhan
- Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh, India
| | - Bidisha Mandal
- Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh, India
| | - Amit Tuli
- Division of Cell Biology and Immunology, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh, India.
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Li Z, Liu J, Ma Q, Liu A, Li Y, Guan G, Luo J, Yin H. Screening and identification of Theileria annulata subtelomere-encoded variable secreted protein-950454 (SVSP454) interacting proteins from bovine B cells. Parasit Vectors 2021; 14:319. [PMID: 34116718 PMCID: PMC8196448 DOI: 10.1186/s13071-021-04820-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 06/02/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Theileria annulata is a protozoan parasite that can infect and transform bovine B cells, macrophages, and dendritic cells. The mechanism of the transformation is still not well understood, and some parasite molecules have been identified, which contribute to cell proliferation by regulating host signaling pathways. Subtelomeric variable secreted proteins (SVSPs) of Theileria might affect the host cell phenotype, but its function is still not clear. Therefore, in the present study, we explored the interactions of SVSP454 with host cell proteins to investigate the molecular mechanism of T. annulata interaction with host cells. METHODS The transcription level of an SVSP protein from T. annulata, SVSP454, was analyzed between different life stages and transformed cell passages using qRT-PCR. Then, SVSP454 was used as a bait to screen its interacting proteins from the bovine B cell cDNA library using a yeast two-hybrid (Y2H) system. The potential interacting proteins of host cells with SVSP454 were further identified by using a coimmunoprecipitation (Co-IP) and bimolecular fluorescence complementation (BiFC) assays. RESULTS SVSP454 was transcribed in all three life stages of T. annulata but had the highest transcription during the schizont stage. However, the transcription level of SVSP454 continuously decreased as the cultures passaged. Two proteins, Bos Taurus coiled-coil domain 181 (CCDC181) and Bos Taurus mitochondrial ribosomal protein L30 (MRPL30), were screened. The proteins CCDC181 and MRPL30 of the host were further identified to directly interact with SVSP454. CONCLUSION In the present study, SVSP454 was used as a bait plasmid, and its prey proteins CCDC181 and MRPL30 were screened out by using a Y2H system. Then, we demonstrated that SVSP454 directly interacted with both CCDC181 and MRPL30 by Co-IP and BiFC assays. Therefore, we speculate that SVSP454-CCDC181/SVSP454MRPL30 is an interacting axis that regulates the microtubule network and translation process of the host by some vital signaling molecules. Identification of the interaction of SVSP454 with CCDC181 and MRPL30 will help illustrate the transformation mechanisms induced by T. annulata.
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Affiliation(s)
- Zhi Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Xujiaping 1, Lanzhou, Gansu, 730046, People's Republic of China
| | - Junlong Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Xujiaping 1, Lanzhou, Gansu, 730046, People's Republic of China.
| | - Quanying Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Xujiaping 1, Lanzhou, Gansu, 730046, People's Republic of China
| | - Aihong Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Xujiaping 1, Lanzhou, Gansu, 730046, People's Republic of China
| | - Youquan Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Xujiaping 1, Lanzhou, Gansu, 730046, People's Republic of China
| | - Guiquan Guan
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Xujiaping 1, Lanzhou, Gansu, 730046, People's Republic of China
| | - Jianxun Luo
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Xujiaping 1, Lanzhou, Gansu, 730046, People's Republic of China
| | - Hong Yin
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Xujiaping 1, Lanzhou, Gansu, 730046, People's Republic of China. .,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, People's Republic of China.
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Li H, Qin X, Song P, Han R, Li J. A LexA-based yeast two-hybrid system for studying light-switchable interactions of phytochromes with their interacting partners. aBIOTECH 2021; 2:105-16. [PMID: 36304755 DOI: 10.1007/s42994-021-00034-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 02/01/2021] [Indexed: 12/26/2022]
Abstract
Phytochromes are a family of photoreceptors in plants that perceive the red (R) and far-red (FR) components of their light environment. Phytochromes exist in vivo in two forms, the inactive Pr form and the active Pfr form, that are interconvertible by treatments with R or FR light. It is believed that phytochromes transduce light signals by interacting with their signaling partners. A GAL4-based light-switchable yeast two-hybrid (Y2H) system was developed two decades ago and has been successfully employed in many studies to determine phytochrome interactions with their signaling components. However, several pairs of interactions between phytochromes and their interactors, such as the phyA-COP1 and phyA-TZP interactions, were demonstrated by other assay systems but were not detected by this GAL4 Y2H system. Here, we report a modified LexA Y2H system, in which the LexA DNA-binding domain is fused to the C-terminus of a phytochrome protein. The conformational changes of phytochromes in response to R and FR light are achieved in yeast cells by exogenously supplying phycocyanobilin (PCB) extracted from Spirulina. The well-defined interaction pairs, including phyA-FHY1 and phyB-PIFs, are well reproducible in this system. Moreover, we show that our system is successful in detecting the phyA-COP1 and phyA-TZP interactions. Together, our study provides an alternative Y2H system that is highly sensitive and reproducible for detecting light-switchable interactions of phytochromes with their interacting partners. Supplementary Information The online version contains supplementary material available at 10.1007/s42994-021-00034-5.
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Abstract
Liver-expressed antimicrobial peptide 2 (LEAP-2) is a cationic peptide that plays an important role in a host's innate immune system. We previously demonstrated that mudskipper ( Boleophthalmus pectinirostris) LEAP-2 (BpLEAP-2) induces chemotaxis and activation of monocytes/ macrophages (MO/MФ). However, the molecular mechanism by which BpLEAP-2 regulates MO/MΦ remains unclear. In this study, we used yeast two-hybrid cDNA library screening to identify mudskipper protein(s) that interacted with BpLEAP-2, and characterized a sequence encoding motile sperm domain-containing protein 2 (BpMOSPD2). The interaction between BpLEAP-2 and BpMOSPD2 was subsequently confirmed by co-immunoprecipitation (Co-IP). Sequence analyses revealed that the predicted BpMOSPD2 contained an N-terminal extracellular portion composed of a CRAL-TRIO domain and a motile sperm domain, a C-terminal transmembrane domain, and a short cytoplasmic tail. Phylogenetic tree analysis indicated that BpMOSPD2 grouped tightly with fish MOSPD2 homologs and was most closely related to that of the Nile tilapia ( Oreochromis niloticus). The recombinant BpMOSPD2 was produced by prokaryotic expression and the corresponding antibody was prepared for protein concentration determination. RNA interference was used to knockdown BpMOSPD2 expression in the mudskipper MO/MФ, and the knockdown efficiency was confirmed by quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting. Knockdown of BpMOSPD2 significantly inhibited BpLEAP-2-induced chemotaxis of mudskipper MO/MФ and BpLEAP-2-induced bacterial killing activity. Furthermore, knockdown of BpMOSPD2 inhibited the effect of BpLEAP-2 on mRNA expression levels of BpIL-10, BpTNFα, BpIL-1β, and BpTGFβ in MO/MФ. In general, BpMOSPD2 directly interacted with BpLEAP-2, and mediated the effects of BpLEAP-2 on chemotaxis and activation of mudskipper MO/MФ. This is the first identification of MOSPD2 as a receptor for LEAP-2.
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Affiliation(s)
- Chang-Hong Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang 315211, China.,Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China.,Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Jie Chen
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China.,College of Ecology, Lishui University, Lishui, Zhejiang 323000, China
| | - Li Nie
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jiong Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang 315211, China.,Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China.,Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China. E-mail:
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24
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Iqbal N, Mukhtar MU, Yang J, Niu Q, Li Z, Zhao S, Zhao Y, Guan G, Liu Z, Yin H. Identification and evaluation of midgut protein RL12 of Dermacentor silvarum interacting with Anaplasma ovis VirD4. Ticks Tick Borne Dis 2021; 12:101677. [PMID: 33549977 DOI: 10.1016/j.ttbdis.2021.101677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 01/16/2021] [Accepted: 01/17/2021] [Indexed: 11/15/2022]
Abstract
Anaplasma ovis, a tick-borne intra-erythrocytic Gram-negative bacterium, is a causative agent of ovine anaplasmosis. It is known that Dermacentor ticks act as biological vectors for A. ovis. VirD4 is the machine component of Type IV Secretion System of A. ovis. To better understand the pathogen-vector interaction, VirD4 was used as a bait protein for screening midgut proteins of Dermacentor silvarum via yeast two-hybrid mating assay. As a result, a ribosomal protein RL12 was identified from the midgut cDNA library of D. silvarum. For further validation, using in vitro Glutathione S-transferase (GST) pull-down assay, interaction between the proteins, GST-RL12 and HIS-VirD4, was observed in Western blot analysis. The study is first of its kind reporting a D. silvarum midgut protein interaction with VirD4 from A. ovis. Functional annotations showed some important cellular processes are attributed to the protein, particularly in the stringent response and biogenesis. The results of the study suggest the involvement of the VirD4-RL12 interaction in the regulation of signaling pathways, which is a tool for understanding the pathogen-vector interaction.
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Affiliation(s)
- Naveed Iqbal
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China.
| | - Muhammad Uzair Mukhtar
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China.
| | - Jifei Yang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China.
| | - Qingli Niu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China.
| | - Zhi Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China.
| | - Shuaiyang Zhao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China.
| | - Yaru Zhao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China.
| | - Guiquan Guan
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China.
| | - Zhijie Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China.
| | - Hong Yin
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, Gansu, 730046, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, PR China.
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25
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Ghildiyal R, Gabrani R. Deciphering the human cellular interactors of alphavirus unique domain of chikungunya virus. Virus Res 2021; 295:198288. [PMID: 33418023 DOI: 10.1016/j.virusres.2020.198288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 12/07/2020] [Accepted: 12/25/2020] [Indexed: 01/10/2023]
Abstract
The life-threatening re-emerged chikungunya virus (CHIKV) can cause an epidemic outbreak and still has no vaccine available so far. Alphavirus unique domain (AUD) of CHIKV nsP3 is a multifunctional domain that remains conserved among alphaviruses and is critical for CHIKV replication. The understanding of AUD-host protein-protein interactions and their association with the cellular processes concerning CHIKV infection are not well studied. In the current study, the protein-protein interactions of AUD and its human host were elucidated by screening of universal human cDNA library using yeast two-hybrid system. The chosen interactions were further validated by GST pull-down assay, and their network mapping was analyzed. The study revealed that the identified interactors are linked with the vesicle trafficking and transcription corepressor activities. Further, the interfacial residues of interactions between viral and host proteins were predicted, which will further provide the new platform to develop novel antivirals.
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Affiliation(s)
- Ritu Ghildiyal
- Center for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, Noida, UP, 201309, India.
| | - Reema Gabrani
- Center for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, Noida, UP, 201309, India.
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Abstract
The yeast two-hybrid technique is a powerful method to detect direct protein-protein interactions. Due to its accessibility, speed, and versatility, this technique is easy to set up in any laboratory and suitable for small and large scale screenings. Here we describe the implementation of an array-based screening that allows for the probing of the entire human PDZ ORFeome (or hPDZome) by yeast two-hybrid technique. With this approach, one can rapidly identify the PDZ domains that are able to interact (up to KD in the high μmolar range) with any candidate protein among a panel of 266 individual clones, thereby comprehensively identifying its PDZ interactome.
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Affiliation(s)
- Monica Castro-Cruz
- Centre de Recherche en Cancerologie de Marseille (CRCM), Equipe Zimmermann labellisée Ligue 2018 - 2019, Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes, Marseille, France
- Department of Human Genetics, K. U. Leuven, Leuven, Belgium
| | - Marta Monserrat-Gomez
- Centre de Recherche en Cancérologie de Marseille (CRCM), Equipe Zimmermann labellisée Ligue 2018 - 2019, Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes, Marseille, France
| | - Jean-Paul Borg
- Institut Universitaire de France (IUF), Paris, France
- Centre de Recherche en Cancérologie de Marseille, Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes, Marseille, France
| | - Pascale Zimmermann
- Centre de Recherche en Cancerologie de Marseille (CRCM), Equipe Zimmermann labellisée Ligue 2018 - 2019, Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes, Marseille, France
- Department of Human Genetics, K. U. Leuven, Leuven, Belgium
| | - Eric Bailly
- Centre de Recherche en Cancérologie de Marseille, Aix-Marseille Université, Inserm, CNRS, Institut Paoli-Calmettes, Marseille, France.
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McLellan H, Armstrong MR, Birch PRJ. Yeast Two-Hybrid Screening for Identification of Protein-Protein Interactions in Solanum tuberosum. Methods Mol Biol 2021; 2354:95-110. [PMID: 34448156 DOI: 10.1007/978-1-0716-1609-3_4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Yeast two-hybrid (Y2H) is a technique used to identify protein-protein interactions. It relies on interacting proteins bringing the two domains of a split transcription factor into close proximity, thereby reconstituting its ability to activate reporter genes. There are many variations on this technique. Here we provide an adapted protocol based on the Invitrogen ProQuest™ Two-Hybrid system, which has been used successfully to screen over 60 Phytophthora infestans pathogen effector proteins to identify candidate-interacting proteins in Solanum tuberosum, and has been used to identify many potato-potato protein-protein interactions.
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Yang CY, Sun CW. Sequence analysis and protein interactions of Arabidopsis CIA2 and CIL proteins. Bot Stud 2020; 61:20. [PMID: 32556735 PMCID: PMC7303255 DOI: 10.1186/s40529-020-00297-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/11/2020] [Indexed: 05/22/2023]
Abstract
BACKGROUND A previous screening of Arabidopsis thaliana for mutants exhibiting dysfunctional chloroplast protein transport identified the chloroplast import apparatus (cia) gene. The cia2 mutant has a pale green phenotype and reduced rate of protein import into chloroplasts, but leaf shape and size are similar to wild-type plants of the same developmental stage. Microarray analysis showed that nuclear CIA2 protein enhances expression of the Toc75, Toc33, CPN10 and cpRPs genes, thereby up-regulating protein import and synthesis efficiency in chloroplasts. CIA2-like (CIL) shares 65% sequence identity to CIA2, suggesting that CIL and CIA2 are homologous proteins in Arabidopsis. Here, we further assess the protein interactions and sequence features of CIA2 and CIL. RESULTS Subcellular localizations of truncated CIA2 protein fragments in our onion transient assay demonstrate that CIA2 contains two nuclear localization signals (NLS) located at amino acids (aa) 62-65 and 291-308, whereas CIL has only one NLS at aa 47-50. We screened a yeast two-hybrid (Y2H) Arabidopsis cDNA library to search for putative CIA2-interacting proteins and identified 12 nuclear proteins, including itself, CIL, and flowering-control proteins (such as CO, NF-YB1, NF-YC1, NF-YC9 and ABI3). Additional Y2H experiments demonstrate that CIA2 and CIL mainly interact with flowering-control proteins via their N-termini, but preferentially form homo- or hetero-dimers through their C-termini. Moreover, sequence alignment showed that the N-terminal sequences of CIA2, CIL and NF-YA are highly conserved. Therefore, NF-YA in the NF-Y complex could be substituted by CIA2 or CIL. CONCLUSIONS We show that Arabidopsis CIA2 and CIL can interact with CO and NF-Y complex, so not only may they contribute to regulate chloroplast function but also to modulate flower development.
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Affiliation(s)
- Chun-Yen Yang
- Department of Life Science, National Taiwan Normal University, Taipei, 116, Taiwan
| | - Chih-Wen Sun
- Department of Life Science, National Taiwan Normal University, Taipei, 116, Taiwan.
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Zong T, Yin J, Jin T, Wang L, Luo M, Li K, Zhi H. A DnaJ protein that interacts with soybean mosaic virus coat protein serves as a key susceptibility factor for viral infection. Virus Res 2020; 281:197870. [PMID: 31962064 DOI: 10.1016/j.virusres.2020.197870] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/15/2020] [Accepted: 01/18/2020] [Indexed: 12/11/2022]
Abstract
Soybean mosaic virus (SMV)-disease is one of the most serious and widespread diseases in soybean (Glycine max). In the present study, a DnaJ protein in soybean designated GmCPIP (SMV coat protein-interacting protein) was screened by the QIS-Seq (quantitative interactor screening with next-generation sequencing) method, and the interaction between SMV CP and GmCPIP was confirmed by the yeast two-hybrid (Y2H) system and bimolecular fluorescence complementation (BiFC) assay. Subcellular localization analysis indicated that both proteins are localized in the cytoplasm, cytomembrane and nucleus. Quantitative real-time polymerase chain reaction (qRT-PCR) analysis showed that infection with SMV-SC4 temporarily increased the transcription of GmCPIP. Virus-induced gene silencing (VIGS) down-regulated the GmCPIP gene by 82%, and the accumulation of SMV was decreased by 88.6% in GmCPIP-silenced plants inoculated with SMV-SC4. The interaction of GmCPIP with SMV CP seems to contribute to SMV infection in soybean.
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Affiliation(s)
- Tingxuan Zong
- National Center for Soybean Improvement, National Key Laboratory for Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Genetic Improvement of Soybean, Ministry of Agriculture, Nanjing Agricultural University, Weigang 1, Nanjing, China
| | - Jinlong Yin
- National Center for Soybean Improvement, National Key Laboratory for Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Genetic Improvement of Soybean, Ministry of Agriculture, Nanjing Agricultural University, Weigang 1, Nanjing, China
| | - Tongtong Jin
- National Center for Soybean Improvement, National Key Laboratory for Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Genetic Improvement of Soybean, Ministry of Agriculture, Nanjing Agricultural University, Weigang 1, Nanjing, China
| | - Liqun Wang
- National Center for Soybean Improvement, National Key Laboratory for Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Genetic Improvement of Soybean, Ministry of Agriculture, Nanjing Agricultural University, Weigang 1, Nanjing, China
| | - Minxuan Luo
- National Center for Soybean Improvement, National Key Laboratory for Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Genetic Improvement of Soybean, Ministry of Agriculture, Nanjing Agricultural University, Weigang 1, Nanjing, China
| | - Kai Li
- National Center for Soybean Improvement, National Key Laboratory for Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Genetic Improvement of Soybean, Ministry of Agriculture, Nanjing Agricultural University, Weigang 1, Nanjing, China.
| | - Haijian Zhi
- National Center for Soybean Improvement, National Key Laboratory for Crop Genetics and Germplasm Enhancement, Key Laboratory of Biology and Genetic Improvement of Soybean, Ministry of Agriculture, Nanjing Agricultural University, Weigang 1, Nanjing, China.
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Gong X, Chen Q, Zheng F. Identification of protein inhibitor of activated STAT 4, a novel host interacting partner that involved in bovine viral diarrhea virus growth. Virol J 2020; 17:59. [PMID: 32321515 PMCID: PMC7178618 DOI: 10.1186/s12985-020-01330-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 04/15/2020] [Indexed: 12/19/2022] Open
Abstract
Background Bovine viral diarrhea virus (BVDV) belongs to the Flaviviridae family and the pestivius virus group. BVDV is responsible for significant economic loss in cattle industry worldwide because of reducing reproductive performance, increasing incidence of other diseases and mortality among young stock. The core (C) protein of the Flaviviridae family member is involved in host antiviral immune response through activation of related signaling pathways that affect the viral replication. However, the influence of C protein-interaction partners in BVDV infections is poorly defined. Methods To explore C-protein-interacting partners, yeast two-hybrid was used to screen the interaction protein of C protein using bovine peripheral blood mononuclear cell (PBMC) cDNA library. The co-immunoprecipitation and confocal assays were manipulated to determine the interaction between potential partners and C protein. Knockdown and overexpression of the partner were used to examine whether the C-protein-interacting partner plays a role in BVDV proliferation and virulence. Meanwhile, qRT-PCR and western blot assays were used to investigate the effect of C protein and C-protein-interacting partner on the immune response of host cells. Results We identified protein inhibitor of activated STAT 4 (PIAS4) as a novel interacting partner of the BVDV C protein. Co-immunoprecipitation and confocal assays demonstrated a strong interaction between C protein and PIAS4. Silencing of PIAS4 with small interfering RNA suppressed C protein expression and BVDV growth, while overexpression of PISA4 increased C protein expression and BVDV growth. The overexpression of PIAS4 increased the cell apoptosis. Meanwhile, the expressions of STAT4, SOCS3, IFITM, IFN-α were negatively regulated by the expression of PIAS4. The expression of C protein suppressed the antiviral proteins expression, and the inhibition effect was enhanced by interaction of PIAS4 and C protein. These results highlighted the beneficial properties of cellular PIAS4 for BVDV protein expression and growth. Conclusions This study provides reliable clues for understanding the roles of PIAS4 in the regulation of BVDV growth.
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Affiliation(s)
- Xiaowei Gong
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 1 Xujiaping, Yanchangbao, Lanzhou, 730046, China
| | - Qiwei Chen
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 1 Xujiaping, Yanchangbao, Lanzhou, 730046, China
| | - Fuying Zheng
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, No. 1 Xujiaping, Yanchangbao, Lanzhou, 730046, China.
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31
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NanGong Z, Guo X, Yang Q, Song P, Wang Q, Parajulee MN. Identification of Arylphorin interacting with the insecticidal protein PirAB from Xenorhabdus nematophila by yeast two-hybrid system. World J Microbiol Biotechnol 2020; 36:56. [PMID: 32211973 DOI: 10.1007/s11274-020-02833-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 03/18/2020] [Indexed: 11/28/2022]
Abstract
PirAB toxin was initially found in the Photorhabdus luminescens TT01 strain and is a demonstrated binary toxin with high insecticidal activity. In this paper, we co-expressed the pirAB gene of Xenorhabdus nematophila HB310 in a prokaryotic expression system, and we found that the PirAB protein showed high hemocoel insecticidal activity against Galleria mellonella, Helicoverpa armigera and Spodoptera exigua. LD50 values were 1.562, 2.003 and 2.17 μg/larvae for G. mellonella, H. armigera, and S. exigua, respectively (p > 0.05). Additionally, PirAB-interaction proteins were identified from G. mellonella by 6 × His Protein Pulldown combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS). Of which, arylphorin of G. mellonella showed the highest matching rate. A protein domain conservative structure analysis indicated that arylphorin has three domains including Hemocyanin-N, Hemocyanin-M, and Hemocyanin-C. Among these protein domains, Hemocyanin-C has immune and recognition functions. Further, Hemocyanin-C domain of arylphorin was identified to interact with PirA but not PirB by Yeast two-hybrid system. These findings reveal, for the first time, new host protein interacting with PirAB. The identification of interaction protein may serve as the foundation for further study on the function and insecticidal mechanism of this binary toxin from Xenorhabdus.
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Affiliation(s)
- Ziyan NanGong
- Plant Protection College, Hebei Agricultural University, Baoding, 071000, China.
| | - Xiaoxiao Guo
- Plant Protection College, Hebei Agricultural University, Baoding, 071000, China
| | - Qing Yang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Ping Song
- Plant Protection College, Hebei Agricultural University, Baoding, 071000, China
| | - Qinying Wang
- Plant Protection College, Hebei Agricultural University, Baoding, 071000, China
| | - Megha N Parajulee
- Texas A&M AgriLife Research and Extension Center, Lubbock, TX, 79403, USA
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Mukhtar MU, Iqbal N, Yang J, Niu Q, Zhao S, Li Z, Zhao Y, Rashid M, Chen Z, Guan G, Liu Z, Yin H. Identification and evaluation of UL36 protein from Dermacentor silvarum salivary gland and its interaction with Anaplasma ovis VirB10. Parasit Vectors 2020; 13:105. [PMID: 32103780 PMCID: PMC7045605 DOI: 10.1186/s13071-020-3975-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 02/17/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Anaplasma ovis is a gram-negative, tick-borne obligate intraerythrocytic pathogen, which causes ovine anaplasmosis in small ruminants worldwide. VirB10 of A. ovis is an integral component of the Type IV Secretion System (T4SS). The T4SS is used by bacteria to transfer DNA and/or proteins undeviatingly into the host cell to increase their virulence. To more thoroughly understand the interaction between A. ovis and Dermacentor silvarum, a vector containing the virb10 gene of A. ovis was used as a bait plasmid to screen interacting proteins from the cDNA library of the D. silvarum salivary gland using the yeast two-hybrid system. METHODS The cDNA of the D. silvarum salivary gland was cloned into the pGADT7-SmaI vector (prey plasmid) to construct the yeast two-hybrid cDNA library. The virb10 gene was cloned into the pGBKT7 vector to generate a bait plasmid. Any gene auto-activation or toxicity effects in the yeast strain Y2HGold were excluded. The screening was performed by combining the bait and prey plasmids in yeast strains to identify positive preys. The positive preys were then sequenced, and the obtained sequences were subjected to further analyses using Gene Ontology, UniProt, SMART, and STRING. Additionally, the interaction between the bait and the prey was evaluated using the glutathione S-transferase (GST) pull-down assay. RESULTS A total of two clones were obtained from the cDNA library using the yeast two-hybrid system, and the sequence analysis showed that both clones encoded the same large tegument protein, UL36. Furthermore, the proteins GST-UL36 and His-VirB10 were successfully expressed in vitro and the interaction between the two proteins was successfully demonstrated by the GST pull-down assay. CONCLUSIONS To our knowledge, this study is the first to screen for D. silvarum salivary gland proteins that interact with A. ovis VirB10. The resulting candidate, UL36, is a multi-functional protein. Further investigations into the functionality of UL36 should be carried out, which might help in identifying novel prevention and treatment strategies for A. ovis infection. The present study provides a base for exploring and further understanding the interactions between A. ovis and D. silvarum.
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Affiliation(s)
- Muhammad Uzair Mukhtar
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Naveed Iqbal
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Jifei Yang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Qingli Niu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Shuaiyang Zhao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Zhi Li
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Yaru Zhao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Muhammad Rashid
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Ze Chen
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Guiquan Guan
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China
| | - Zhijie Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China.
| | - Hong Yin
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou, 730046, Gansu, People's Republic of China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, People's Republic of China.
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Li X, Zhang N, Wu N, Li J, Yang J, Yu Y, Zheng J, Li X, Wang X, Gong P, Zhang X. Identification of GdRFC1 as a novel regulator of telomerase in Giardia duodenalis. Parasitol Res 2020; 119:1035-1041. [PMID: 32072328 DOI: 10.1007/s00436-020-06610-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 01/15/2020] [Indexed: 11/25/2022]
Abstract
Telomerase plays a crucial role in ageing and tumourigenesis. However, the regulatory network of its activity is complicated and not fully understood. In the present study, a yeast two-hybrid screen identified a homologue of human replication factor C subunit 1 (RFC1) as a novel interacting protein of Giardia duodenalis GdTRBD (Giardia duodenalis telomerase ribonucleoprotein complex RNA binding domain GdTRBD). This interaction was further verified via GST pull-down in vitro and co-immunoprecipitation (Co-IP) and bimolecular fluorescence complementation (BiFC) in vivo. We also found that GdRFC1 (Giardia duodenalis replication factor C subunit 1) only interacted with GdTRBD in one nucleus in Giardia duodenalis via a proximity ligation assay (PLA). We reasoned that the two nuclei might have significant heterogeneity in their functional activities during the trophozoite stage and that the two molecules might be involved in other unidentified functions in addition to telomerase activity. In addition, knockdown of GdRFC1 decreased telomerase activity. Collectively, our results indicate that GdRFC1 is a novel binding partner and positive regulator of telomerase in Giardia duodenalis.
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Affiliation(s)
- Xianhe Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Nan Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China
- The First Bethune Hospital, Jilin University, Changchun, 130021, China
| | - Na Wu
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Jianhua Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Ju Yang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Yanhui Yu
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Jingtong Zheng
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Xin Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Xiaocen Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Pengtao Gong
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China.
| | - Xichen Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Institute of Zoonosis, Jilin University, Changchun, 130062, China.
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Hong MJ, Kim DY, Choi HI, Seo YW, Kim JB. Isolation and characterization of kelch repeat-containing F-box proteins from colored wheat. Mol Biol Rep 2020; 47:1129-41. [PMID: 31907740 DOI: 10.1007/s11033-019-05210-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 11/26/2019] [Indexed: 12/30/2022]
Abstract
F-box proteins play important roles in the regulation of various developmental processes in plants. Approximately 1796 F-box genes have been identified in the wheat genome, but details of their functions remain unknown. Moreover, not much was known about the roles of kelch repeat domain-containing F-box genes (TaKFBs) in wheat. In the present study, we isolated five TaKFBs to investigate the roles of KFBs at different stages of colored wheat grain development. The cDNAs encoding TaKFB1, TaKFB2, TaKFB3, TaKFB4, and TaKFB5 contained 363, 449, 353, 382, and 456 bp open reading frames, respectively. All deduced TaKFBs contained an F-box domain (IPR001810) and a kelch repeat type 1 domain (IPR006652), except TaKFB2. Expression of TaKFBs was elevated during the pigmentation stages of grain development. To clarify how TaKFB and SKP interact in wheat, we investigated whether five TaKFB proteins showed specificity for six SKP proteins using a yeast two-hybrid (Y2H) assay. An Y2H screen was performed to search for proteins capable of binding the TaKFBs and interaction was identified between TaKFB1 and aquaporin PIP1. To examine the subcellular localization of TaKFBs, we transiently expressed TaKFB-green fluorescent protein (GFP) fusions in tobacco leaves; the TaKFB-GFP fusions were detected in the nucleus and the cytoplasm. Y2H and bimolecular fluorescence complementation (BiFC) assays revealed that TaKFB1 specifically interacts with aquaporin PIP1. These results will provide useful information for further functional studies on wheat F-box proteins and their possible roles.
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Serebriiskii IG, Elmekawy M, Golemis EA. Identification of the KRIT1 Protein by LexA-Based Yeast Two-Hybrid System. Methods Mol Biol 2020; 2152:269-289. [PMID: 32524559 DOI: 10.1007/978-1-0716-0640-7_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cerebral cavernous malformation (CCM) is a vascular malformation of the central nervous system that is associated with leaky capillaries, and a predisposition to serious clinical conditions including intracerebral hemorrhage and seizures. Germline or sporadic mutations in the CCM1/KRIT1 gene are responsible for the majority of cases of CCM. In this article, we describe the original characterization of the CCM1/KRIT1 gene. This cloning was done through the use of a variant of the yeast two-hybrid screen known as the interaction trap, using the RAS-family GTPase KREV1/RAP1A as a bait. The partial clone of KRIT1 (Krev1 Interaction Trapped) initially identified was extended through 5'RACE and computational analysis to obtain a full-length cDNA, then used in a sequential screen to define the integrin-associated ICAP1 protein as a KRIT1 partner protein. We discuss how these interactions are relevant to the current understanding of KRIT1/CCM1 biology, and provide a protocol for library screening with the Interaction Trap.
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Affiliation(s)
- Ilya G Serebriiskii
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA.
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia.
| | - Mohamed Elmekawy
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA
- Moscow Institute of Physics and Technology, Moscow Region, Russia
| | - Erica A Golemis
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA.
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Xie YG, Ma YY, Bi PP, Wei W, Liu J, Hu Y, Gou YJ, Zhu D, Wen YQ, Feng JY. Transcription factor FvTCP9 promotes strawberry fruit ripening by regulating the biosynthesis of abscisic acid and anthocyanins. Plant Physiol Biochem 2020; 146:374-383. [PMID: 31794898 DOI: 10.1016/j.plaphy.2019.11.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 10/08/2019] [Accepted: 11/03/2019] [Indexed: 05/02/2023]
Abstract
The plant-specific transcription factor TEOSINTE BRANCHED 1, CYCLOIDEA, and PROLIFERATING4 CELL FACTORS (TCP) plays a crucial role in plant growth and development. However, there have been no studies reporting on the function of strawberry TCP in regulating fruit development. In this study, FvTCP9, a woodland strawberry (Fragaria vesca) TCP gene, was isolated to explore its function in fruit ripening. The transcript accumulation levels of FvTCP9 were high in fruits, specifically in red fruits compared with other tissues or organs. Transient expression of the FvTCP9 gene in cultivated strawberry fruits revealed that over-expression of FvTCP9 promoted fruit ripening. Meanwhile, silencing FvTCP9, using tobacco rattle virus-induced gene silencing (VIGS), inhibited fruit ripening. The changes in ripening-related physiological conditions in transient fruits, such as the accumulation of anthocyanins and abscisic acid (ABA), and fruit firmness confirmed above results. Results suggested that FvTCP9 was involved in the biosynthesis of ABA and anthocyanins to regulate fruit ripening. Transcription analysis showed that the expression levels of ABA signaling-related genes (FaNCED1, FaPYR1, FaSnRK2, and FaABI5) were affected by FvTCP9. A yeast two-hybrid assay revealed that FvTCP9 interacted physically with FaMYC1 to modulate the biosynthesis process of anthocyanins. Taken together, this study demonstrated that FvTCP9 promoted fruit ripening by regulating the biosynthesis of ABA and anthocyanins.
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Affiliation(s)
- Yin-Ge Xie
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Yang-Yang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Pin-Pin Bi
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Wei Wei
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Jie Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Yang Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Yi-Jie Gou
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Dong Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Ying-Qiang Wen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jia-Yue Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China.
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Cui X, Yan Q, Gan S, Xue D, Wang H, Xing H, Zhao J, Guo N. GmWRKY40, a member of the WRKY transcription factor genes identified from Glycine max L., enhanced the resistance to Phytophthora sojae. BMC Plant Biol 2019; 19:598. [PMID: 31888478 PMCID: PMC6937711 DOI: 10.1186/s12870-019-2132-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 11/12/2019] [Indexed: 05/18/2023]
Abstract
BACKGROUND The WRKY proteins are a superfamily of transcription factors and members play essential roles in the modulation of diverse physiological processes, such as growth, development, senescence and response to biotic and abiotic stresses. However, the biological roles of the majority of the WRKY family members remains poorly understood in soybean relative to the research progress in model plants. RESULTS In this study, we identified and characterized GmWRKY40, which is a group IIc WRKY gene. Transient expression analysis revealed that the GmWRKY40 protein is located in the nucleus of plant cells. Expression of GmWRKY40 was strongly induced in soybean following infection with Phytophthora sojae, or treatment with methyl jasmonate, ethylene, salicylic acid, and abscisic acid. Furthermore, soybean hairy roots silencing GmWRKY40 enhanced susceptibility to P. sojae infection compared with empty vector transgenic roots. Moreover, suppression of GmWRKY40 decreased the accumulation of reactive oxygen species (ROS) and modified the expression of several oxidation-related genes. Yeast two-hybrid experiment combined with RNA-seq analysis showed that GmWRKY40 interacted with 8 JAZ proteins with or without the WRKY domain or zinc-finger domain of GmWRKY40, suggesting there were different interaction patterns among these interacted proteins. CONCLUSIONS Collectively, these results suggests that GmWRKY40 functions as a positive regulator in soybean plants response to P. sojae through modulating hydrogen peroxide accumulation and JA signaling pathway.
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Affiliation(s)
- Xiaoxia Cui
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Qiang Yan
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Shuping Gan
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Dong Xue
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Haitang Wang
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Han Xing
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Jinming Zhao
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Na Guo
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
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Sarkar NK, Kotak S, Agarwal M, Kim YK, Grover A. Silencing of class I small heat shock proteins affects seed-related attributes and thermotolerance in rice seedlings. Planta 2019; 251:26. [PMID: 31797121 DOI: 10.1007/s00425-019-03318-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
MAIN CONCLUSION Silencing of CI-sHsps by RNAi negatively affected the seed germination process and heat stress response of rice seedlings. Seed size of RNAiCI-sHsp was reduced as compared to wild-type plants. Small heat shock proteins (sHsps) are the ATP-independent chaperones ubiquitously expressed in response to diverse environmental and developmental cues. Cytosolic sHsps constitute the major repertoire of sHsp family. Rice cytosolic class I (CI)-sHsps consists of seven members (Hsp16.9A, Hsp16.9B, Hsp16.9C, Hsp17.4, Hsp17.7, Hsp17.9A and Hsp18). Purified OsHsp17.4 and OsHsp17.9A proteins exhibited chaperone activity by preventing formation of large aggregates with model substrate citrate synthase. OsHsp16.9A and OsHsp17.4 showed nucleo-cytoplasmic localization, while the localization of OsHsp17.9A was preferentially in the nucleus. Transgenic tobacco plants expressing OsHsp17.4 and OsHsp17.9A proteins and Arabidopsis plants ectopically expressing OsHsp17.4 protein showed improved thermotolerance to the respective trans-hosts during the post-stress recovery process. Single hairpin construct was designed to generate all CI-sHsp silenced (RNAiCI-sHsp) rice lines. The major vegetative and reproductive attributes of the RNAiCI-sHsp plants were comparable to the wild-type rice plants. Basal and acquired thermotolerance response of RNAiCI-sHsp seedlings of rice was mildly affected. The seed length of RNAiCI-sHsp rice plants was significantly reduced. The seed germination process was delayed and seed thermotolerance of RNAiCI-sHsp was negatively affected than the non-transgenic seeds. We, thus, implicate that sHsp genes are critical in seedling thermotolerance and seed physiology.
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Affiliation(s)
- Neelam K Sarkar
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Sachin Kotak
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Manu Agarwal
- Department of Botany, University of Delhi, Delhi, 110007, India
| | - Yeon-Ki Kim
- Department of Bioscience and Bioinformatics, Myongji University, Yongin, Gyeonggi-do, 449-728, Korea
| | - Anil Grover
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India.
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Zhang S. Screening and verification for proteins that interact with leucine aminopeptidase of Taenia pisiformis using a yeast two-hybrid system. Parasitol Res 2019; 118:3387-3398. [PMID: 31728719 DOI: 10.1007/s00436-019-06510-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 10/15/2019] [Indexed: 11/30/2022]
Abstract
Leucine aminopeptidase of Taenia pisiformis (TpLAP) belonging to the M17 peptidase family has been implicated as a stage-differentially expressed protein in the adult stage of T. pisiformis. In order to further dissect the biological functions of TpLAP in the growth and development of adult worms, TpLAP-interacting partners were investigated. In this study, a yeast two-hybrid (Y2H) cDNA library from adult T. pisiformis was constructed. Using pGBKT7-TpLAP as bait, proteins interacting with TpLAP were screened by Y2H system and positive preys were sequenced and analyzed using the Basic Local Alignment Search Tool (BLAST). Our results showed that six genuine TpLAP-interacting proteins, including LAP, dynein light chain (DLC), SUMO-conjugating enzyme (UBC9), histone-lysine n-methyltransferase, trans-acting transcriptional, and one unknown protein, were identified via Y2H assay. Furthermore, the interaction between TpLAP and UBC9 of T. pisiformis (TpUBC9), an important protein involved in SUMOylation pathway, was further validated by one-to-one Y2H assay, co-immunoprecipitation, and confocal analysis. These findings provide a deeper understanding of the biological functions of TpLAP and offer the first clue that TpLAP may act as a novel SUMOylated substrate, suggesting that the SUMO modification pathway plays an important role in regulation of adult worm growth and development.
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Affiliation(s)
- Shaohua Zhang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 1 Xujiaping, Yanchangbu, Lanzhou, Gansu Province, 730046, People's Republic of China.
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Lai MY, Abdul-Majid N, Lau YL. Identification of Host Proteins Interacting with Toxoplasma gondii SAG1 by Yeast Two-Hybrid Assay. Acta Parasitol 2019; 64:575-81. [PMID: 31165984 DOI: 10.2478/s11686-019-00066-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 05/02/2019] [Indexed: 11/21/2022]
Abstract
Toxoplasma gondii is one of the most successful human pathogens. To eliminate the infection, identification of receptors or binding partners from humans is indeed urgent. T. gondii surface antigen is the ultimate component involved during the attachment of parasite into host cell. However, mechanism of invasion between SAG and host-cell membrane remains unclear. Yeast two-hybrid experiment was used to identify the binding partners from cDNA human library by using T. gondii SAG1 as bait. Mated yeast cells were plated on DDO/X plates to confirm only prey plasmid that expressing interacting protein was selected. We detected 39 clones interacted with SAG1 based on a series of the selection procedures. After colony PCR, only 29 clones were positive and subsequently sent for sequencing. The yeast plasmids for true positive clones were rescued by transformation into E. coli TOP 10F' cells. Twenty-two clones were further examined by small-scale Y2H experiment. The results indicated that a strong interaction existed between Homo sapiens lysine-rich coil-coiled and SAG1 protein, which could activate the expressions of the reporter genes in diploid yeast. Co-immunoprecipitation experiment result indicated the binding between this prey and SAG1 protein was significant (Mann-Whitney U test, Z = - 1.964, P = 0.05). H. sapiens lysine-rich coil-coiled protein was found to be interacted with SAG1. This prey protein may serve as the potential drug target in vaccination study.
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Wang A, Pan L, Niu X, Shu X, Yi X, Yamamoto N, Li S, Deng Q, Zhu J, Liang Y, Wang L, Li P, Zheng A. Comparative secretome analysis of different smut fungi and identification of plant cell death-inducing secreted proteins from Tilletia horrida. BMC Plant Biol 2019; 19:360. [PMID: 31419944 PMCID: PMC6697988 DOI: 10.1186/s12870-019-1924-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 07/04/2019] [Indexed: 05/08/2023]
Abstract
BACKGROUND Tilletia horrida is a basidiomycete fungus that causes rice kernel smut, one of the most important rice diseases in hybrid rice growing areas worldwide. However, little is known about its mechanisms of pathogenicity. We previously reported the genome of T. horrida, and 597 genes that encoded secreted proteins were annotated. Among these were some important effector genes related to pathogenicity. RESULTS A secretome analysis suggested that five Tilletia fungi shared more gene families than were found in other smuts, and there was high conservation between them. Furthermore, we screened 597 secreted proteins from the T. horrida genome, some of which induced expression in host-pathogen interaction processes. Through transient expression, we demonstrated that two putative effectors could induce necrosis phenotypes in Nicotiana benthamiana. These two encoded genes were up-regulated during early infection, and the encoded proteins were confirmed to be secreted using a yeast secretion system. For the putative effector gene smut_5844, a signal peptide was required to induce non-host cell death, whereas ribonuclease catalytic active sites were required for smut_2965. Moreover, both putative effectors could induce an immune response in N. benthamiana leaves. Interestingly, one of the identified potential host interactors of smut_5844 was laccase-10 protein (OsLAC10), which has been predicted to be involved in plant lignification and iron metabolism. CONCLUSIONS Overall, this study identified two secreted proteins in T. horrida that induce cell death or are involved in defense machinery in non-host plants. This research provides a useful foundation for understanding the interaction between rice and T. horrida.
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Affiliation(s)
- Aijun Wang
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Linxiu Pan
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
| | - Xianyu Niu
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Xinyue Shu
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Xiaoqun Yi
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
| | - Naoki Yamamoto
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Shuangcheng Li
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Qiming Deng
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Jun Zhu
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Yueyang Liang
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Lingxia Wang
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Ping Li
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
| | - Aiping Zheng
- Rice Research Institute of Sichuan Agricultural University, Chengdu, China
- Key laboratory of Sichuan Crop Major Disease, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of Ministry of Education, Sichuan Agricultural University, Yaan, China
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Ben Khalaf N, Al-Mashoor W, Saeed A, Al-Mehatab D, Taha S, Bakhiet M, Fathallah MD. The mouse intron-nested gene, Israa, is expressed in the lymphoid organs and involved in T-cell activation and signaling. Mol Immunol 2019; 111:209-219. [PMID: 31096062 DOI: 10.1016/j.molimm.2019.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 03/25/2019] [Accepted: 04/13/2019] [Indexed: 10/26/2022]
Abstract
We have previously reported Israa, immune-system-released activating agent, as a novel gene nested in intron 8 of the mouse Zmiz1 gene. We have also shown that Israa encodes for a novel FYN-binding protein and might be involved in the regulation of T-cell activation. In this report, we demonstrate that Israa gene product regulates the expression of a pool of genes involved in T-cell activation and signaling. Real time PCR and GFP knock-in expression analysis showed that Israa is transcribed and expressed in the spleen mainly by CD3+CD8+ cells as well as in the thymus by CD3+ (DP and DN), CD4+SP and CD8+SP cells at different developmental stages. We also showed that Israa is downregulated in T-cells following activation of T-cell receptor. Using yeast two-hybrid analysis, we identified ELF1, a transcription factor involved in T-cell regulation, as an ISRAA-binding partner. Transcriptomic analysis of an EL4 cell line overexpressing ISRAA revealed differential expression of several genes involved in T-cell signaling, activation and development. Among these genes, Prkcb, Mib2, Fos, Ndfip2, Cxxc5, B2m, Gata3 and Cd247 were upregulated whereas Itk, Socs3, Tigit, Ifng, Il2ra and FoxJ1 were downregulated. Our findings support the existence in mouse of a novel FYN-related T-cell regulation pathway involving the product of an intron-nested gene.
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Affiliation(s)
- Noureddine Ben Khalaf
- Department of Life Sciences, Health Biotechnology Program, College of Graduates Studies, Arabian Gulf University, Manama, Bahrain
| | - Wedad Al-Mashoor
- Department of Life Sciences, Health Biotechnology Program, College of Graduates Studies, Arabian Gulf University, Manama, Bahrain
| | - Azhar Saeed
- University of Michigan Medical School, MI, USA
| | - Dalal Al-Mehatab
- Department of Life Sciences, Health Biotechnology Program, College of Graduates Studies, Arabian Gulf University, Manama, Bahrain
| | - Safa Taha
- Department of Molecular Medicine, Princess Al-Jawhara Center for Genetics and Inherited Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Bahrain
| | - Moiz Bakhiet
- Department of Molecular Medicine, Princess Al-Jawhara Center for Genetics and Inherited Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Bahrain
| | - M Dahmani Fathallah
- Department of Life Sciences, Health Biotechnology Program, College of Graduates Studies, Arabian Gulf University, Manama, Bahrain.
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Ma RR, Sun J, Fang WH, Dong YP, Ruan JM, Yang XL, Hu K. Identification of Carassius auratus gibelio liver cell proteins interacting with the GABA A receptor γ2 subunit using a yeast two-hybrid system. Fish Physiol Biochem 2019; 45:199-208. [PMID: 30242696 DOI: 10.1007/s10695-018-0554-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
The γ-aminobutyric acid type A (GABAA) receptor is an important pentameric inhibitory neurotransmitter receptor, and the γ2 subunit of this receptor plays a key role in potentiation of the GABAA response. We previously detected that the expression of GABAA receptor in the livers of Carassius auratus gibelio significantly increased after medication (avermectin and difloxacin treatment). In order to better understand the mechanism of action of the GABAA receptor γ2 subunit in the livers of C. auratus gibelio, we constructed a C. auratus gibelio liver cDNA library (the titer value of 1.2 × 106 cfu/mL) and identified the proteins that interact with the GABAA receptor γ2 subunit by using a yeast two-hybrid assay. The yeast two-hybrid screening yielded seven positive clones, namely, prelid3b, cdc42, sgk1, spg21, proteasome, chia.5, and AP-3 complex subunit beta-1, all of which have been annotated by the NCBI database. The functions of these proteins are complex; therefore, additional studies are required to determine the specific interactions of these proteins with the GABAA receptor γ2 subunit in the liver of C. auratus gibelio. Although the interactions identified by the yeast two-hybrid system should be considered as preliminary results, the findings of this study may provide further direction and a foundation for future research focusing on the mechanisms of the GABAA receptor γ2 subunit in C. auratus gibelio livers.
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Affiliation(s)
- Rong-Rong Ma
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai, China
- Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Fisheries Ecology of the Yangtze Estuary, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, China
| | - Jing Sun
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai, China
- Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Wen-Hong Fang
- Key Laboratory of Fisheries Ecology of the Yangtze Estuary, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, China
| | - Ya-Ping Dong
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai, China
- Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Ji-Ming Ruan
- College of Animal Sciences and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Xian-Le Yang
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai, China
- Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Kun Hu
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai, China.
- Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai, China.
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.
- College of Fisheries and Life Science, Shanghai Ocean University, 999 Hucheng Huan Road, Lingang New City Shanghai, 201306, China.
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Yagishita M, Kubo T, Nakano T, Shiraishi F, Tanigawa T, Naito T, Sano T, Nakayama SF, Nakajima D, Otsuka K. Efficient extraction of estrogen receptor-active compounds from environmental surface water via a receptor-mimic adsorbent, a hydrophilic PEG-based molecularly imprinted polymer. Chemosphere 2019; 217:204-212. [PMID: 30415118 DOI: 10.1016/j.chemosphere.2018.10.194] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/25/2018] [Accepted: 10/28/2018] [Indexed: 06/09/2023]
Abstract
We report an efficient screening procedure for the selective detection of compounds that are actively bound to estrogen receptor (ER) from environmental water samples using a receptor-mimic adsorbent prepared by a molecularly imprinted polymer (MIP). To mimic the recognition ability of ER, we improved the typical MIP preparation procedure using a hydrophilic matrix with a polyethylene glycol (PEG)-based crosslinker and a hydrophobic monomer to imitate the hydrophobic pocket of ER. An optimized MIP prepared with methacrylic acid as an additional functional monomer and estriol (E3), an analogue of 17β-estradiol (E2), exhibited highly selective adsorption for ER-active compounds such as E2 and E3, with significant suppression of non-specific hydrophobic adsorption. The prepared MIP was then applied to the screening of ER-active compounds in sewage samples. The fraction concentrated by the MIP was evaluated by in vitro bioassay using the yeast two-hybrid (Y2H) method and liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-Q-TOFMS). Compared to an authentic adsorbent, styrene-divinylbenzene (SDB)-based resin, the fraction concentrated by the MIP had 120% ER activity in the Y2H assay, and only 25% peak volume was detected in LC-Q-TOFMS. Furthermore, a few ER-active compounds were identified only from the fraction concentrated by the MIP, although they could not be determined in the fraction concentrated by the SDB-based resin due to ion suppression along with high levels of hydrophobic compounds. These results indicated that the newly developed MIP effectively captured ER-active compounds and while allowing most non-ER-active compounds to pass through.
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Affiliation(s)
- Mayuko Yagishita
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki, 305-8506, Japan
| | - Takuya Kubo
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan.
| | - Tomohiko Nakano
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Fujio Shiraishi
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki, 305-8506, Japan
| | - Tetsuya Tanigawa
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Toyohiro Naito
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Tomoharu Sano
- Center for Environmental Measurement and Analysis, National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki, 305-8506, Japan
| | - Shoji F Nakayama
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki, 305-8506, Japan
| | - Daisuke Nakajima
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki, 305-8506, Japan
| | - Koji Otsuka
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
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Abstract
Yeast two-hybrid allows for investigation of interactions between two proteins in vivo. Yeast media can be supplemented with phycocyanobilin, allowing the formation of photoactive phytochromes, and the investigation of their light-regulated interactions. Three reporter assays are described; the histidine growth selection assay for the HIS3 reporter, and the filter lift and quantitative ONPG assays for the LacZ reporter. Design considerations for yeast two- and three-hybrid experiments are also covered.
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Affiliation(s)
- David J Sheerin
- Faculty of Biology, Institute of Biology II, University of Freiburg, Freiburg, Germany.
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46
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Zhang X, Li Y, Wang W, Zhang J, Lin Y, Hong B, You X, Song D, Wang Y, Jiang J, Si S. Identification of an anti-Gram-negative bacteria agent disrupting the interaction between lipopolysaccharide transporters LptA and LptC. Int J Antimicrob Agents 2018; 53:442-448. [PMID: 30476569 DOI: 10.1016/j.ijantimicag.2018.11.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/17/2018] [Accepted: 11/15/2018] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The emergence of drug-resistant Gram-negative bacteria is a serious clinical problem that causes increased morbidity and mortality. However, the slow discovery of new antibiotics is unable to meet the need for treating bacterial infections caused by drug-resistant strains. Lipopolysaccharide (LPS) is synthesized in the cytoplasm and transported to the cell envelope by the LPS transport (Lpt) system. LptA and LptC form a complex that transports LPS from the inner membrane to the outer membrane. METHODS This study performed a screen for agents that disrupt the transport of LPS in Gram-negative bacteria Escherichia coli. It established a yeast two-hybrid system to detect LptA-LptC interaction and used this system to identify a compound, IMB-881, that blocks this interaction and shows antibacterial activity. RESULTS This study demonstrated that the IMB-881 compound specifically binds to LptA to disrupt LptA-LptC interaction using surface plasmon resonance assay. Overproduction of LptA protein but not that of LptC lowered the antibacterial activity of IMB-881. Strikingly, Escherichia coli cells accumulated 'extra' membrane material in the periplasm and exhibited filament morphology after treatment with IMB-881. CONCLUSION This study successfully identified, by using a yeast two-hybrid system, an antibacterial agent that likely blocks LPS transport in Gram-negative bacteria.
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Affiliation(s)
- Xuelian Zhang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yan Li
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Weiwei Wang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jing Zhang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuan Lin
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bin Hong
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuefu You
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Danqing Song
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yanchang Wang
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL, USA.
| | - Jiandong Jiang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Shuyi Si
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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Idrees S, Pérez-Bercoff Å, Edwards RJ. SLiM-Enrich: computational assessment of protein-protein interaction data as a source of domain-motif interactions. PeerJ 2018; 6:e5858. [PMID: 30402352 PMCID: PMC6215436 DOI: 10.7717/peerj.5858] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 10/02/2018] [Indexed: 01/21/2023] Open
Abstract
Many important cellular processes involve protein–protein interactions (PPIs) mediated by a Short Linear Motif (SLiM) in one protein interacting with a globular domain in another. Despite their significance, these domain-motif interactions (DMIs) are typically low affinity, which makes them challenging to identify by classical experimental approaches, such as affinity pulldown mass spectrometry (AP-MS) and yeast two-hybrid (Y2H). DMIs are generally underrepresented in PPI networks as a result. A number of computational methods now exist to predict SLiMs and/or DMIs from experimental interaction data but it is yet to be established how effective different PPI detection methods are for capturing these low affinity SLiM-mediated interactions. Here, we introduce a new computational pipeline (SLiM-Enrich) to assess how well a given source of PPI data captures DMIs and thus, by inference, how useful that data should be for SLiM discovery. SLiM-Enrich interrogates a PPI network for pairs of interacting proteins in which the first protein is known or predicted to interact with the second protein via a DMI. Permutation tests compare the number of known/predicted DMIs to the expected distribution if the two sets of proteins are randomly associated. This provides an estimate of DMI enrichment within the data and the false positive rate for individual DMIs. As a case study, we detect significant DMI enrichment in a high-throughput Y2H human PPI study. SLiM-Enrich analysis supports Y2H data as a source of DMIs and highlights the high false positive rates associated with naïve DMI prediction. SLiM-Enrich is available as an R Shiny app. The code is open source and available via a GNU GPL v3 license at: https://github.com/slimsuite/SLiMEnrich. A web server is available at: http://shiny.slimsuite.unsw.edu.au/SLiMEnrich/.
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Affiliation(s)
- Sobia Idrees
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Åsa Pérez-Bercoff
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Richard J Edwards
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
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Zhang N, Wang X, Gobel V, Zhang X. The galectin LEC-5 is a novel binding partner for RAB-11. Biochem Biophys Res Commun 2018; 505:600-605. [PMID: 30274774 DOI: 10.1016/j.bbrc.2018.09.110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 09/17/2018] [Indexed: 01/27/2023]
Abstract
RAB-11/Rab11 is an endosomal GTPase with conserved roles in directional trafficking and apical domain formation in polarized epithelial cells. From a yeast two-hybrid screen using full-length C. elegans RAB-11 as bait, we identified LEC-5 as a novel binding protein for RAB-11. LEC-5 is an ortholog of mammalian Galectin-9 which associates with glycosphingolipids and is implicated in apical cargo sorting. We further confirmed the interaction between RAB-11 and LEC-5 via GST-pull down, co-immunoprecipitation and bimolecular fluorescence complementation. In addition, we showed that LEC-5 binds to RAB-11 with its C-terminus. Our results indicate a novel role of RAB-11 in apical sorting via LEC-5. Such a role would extend RAB-11's function as a master regulator of apical trafficking and suggest it could translate apical sorting signals into apical vesicle directionality.
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Affiliation(s)
- Nan Zhang
- The First Bethune Hospital, Jilin University, Changchun, 130021, China; Key Laboratory of Zoonosis Research, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Xu Wang
- Key Laboratory of Zoonosis Research, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Verena Gobel
- Mucosal Immunology and Biology Research Center, Developmental Biology and Genetics Core, Massachusetts General Hospital for Children, Harvard Medical School, Boston, MA, 02114, USA
| | - Xichen Zhang
- Key Laboratory of Zoonosis Research, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, China.
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Wang W, Liu C, Zhu N, Lin Y, Jiang J, Wang Y, Li Y, Si S. Identification of anti-Gram-negative bacteria agents targeting the interaction between ribosomal proteins L12 and L10. Acta Pharm Sin B 2018; 8:772-783. [PMID: 30245964 PMCID: PMC6146381 DOI: 10.1016/j.apsb.2018.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 06/18/2018] [Accepted: 07/05/2018] [Indexed: 12/29/2022] Open
Abstract
Gram-negative bacteria have become the main pathogens and cause serious clinical problems with increased morbidity and mortality. However, the slow discovery of new antimicrobial agents is unable to meet the need for the treatment of bacterial infections caused by drug-resistant strains. The interaction of L12 and L10 is essential for ribosomal function and protein synthesis. In this study, a yeast two-hybrid system was established to successfully detect the interaction between L12 and L10 proteins from gram-negative bacteria Escherichia coli, which allows us to screen compounds that specifically disrupt this interaction. With this system, we identified two compounds IMB-84 and IMB-87 that block L12-L10 interaction and show bactericidal activity against E. coli. We used glutathione-S-transferase (GST) pull-down and surface plasmon resonance (SPR) assays to demonstrate that these compounds disrupt L12-L10 interaction in vitro and the target of compounds was further confirmed by the overexpression of target proteins. Moreover, protein synthesis and elongation factor G-dependent GTPase activities are inhibited by two compounds. Therefore, we have identified two antibacterial agents that disrupt L12-L10 interaction by using yeast two-hybrid system.
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Affiliation(s)
- Weiwei Wang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Chao Liu
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Ningyu Zhu
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Yuan Lin
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jiandong Jiang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yanchang Wang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA
| | - Yan Li
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
- Corresponding authors.
| | - Shuyi Si
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, China
- Corresponding authors.
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Ye L, Gui-Hua Z, Kun Y, Hong-Fa W, Ting X, Gong-Zhen L, Wei-Xia Z, Yong C. [Primary culture of cat intestinal epithelial cell and construction of its cDNA library]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2018; 29:464-467. [PMID: 29508581 DOI: 10.16250/j.32.1374.2016271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Objective To establish the primary cat intestinal epithelial cells (IECs) culture methods and construct the cDNA library for the following yeast two-hybrid experiment, so as to screen the virulence interaction factors among the final host. Methods The primary cat IECs were cultured by the tissue cultivation and combined digestion with collagenase XI and dispase I separately. Then the cat IECs cultured was identified with the morphological observation and cyto-keratin detection, by using goat anti-cyto-keratin monoclonal antibodies. The mRNA of cat IECs was isolated and used as the template to synthesize the first strand cDNA by SMART™ technology, and then the double-strand cDNAs were acquired by LD-PCR, which were subsequently cloned into the plasmid PGADT7-Rec to construct yeast two-hybrid cDNA library in the yeast strain Y187 by homologous recombination. Matchmaker™ Insert Check PCR was used to detect the size distribution of cDNA fragments after the capacity calculation of the cDNA library. Results The comparison of the two cultivation methods indicated that the combined digestion of collagenase XI and dispase I was more effective than the tissue cultivation. The cat IECs system of continuous culture was established and the cat IECs with high purity were harvested for constructing the yeast two-hybrid cDNA library. The library contained 1.1×106 independent clones. The titer was 2.8×109 cfu/ml. The size of inserted fragments was among 0.5-2.0 kb. Conclusion The yeast two-hybrid cDNA library of cat IECs meets the requirements of further screen research, and this study lays the foundation of screening the Toxoplasma gondii virulence interaction factors among the cDNA libraries of its final hosts.
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Affiliation(s)
- L Ye
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China; First people's Hospital of Jining City, China
| | - Z Gui-Hua
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - Y Kun
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - W Hong-Fa
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - X Ting
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - L Gong-Zhen
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - Z Wei-Xia
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - C Yong
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
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