1
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Liang P, Li J, Chen W, Zhou H, Lai X, Li J, Xu Z, Yang Q, Zhang J. Design of Inhibitors Targeting Chitin-Degrading Enzymes by Bioisostere Substitutions and Scaffold Hopping for Selective Control of Ostrinia furnacalis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:10794-10804. [PMID: 38711396 DOI: 10.1021/acs.jafc.4c00161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Chitin-degrading enzymes are critical components in regulating the molting process of the Asian corn borer and serve as potential targets for controlling this destructive pest of maize. Here, we used a scaffold-hopping strategy to design a series of efficient naphthylimide insecticides. Among them, compound 8c exhibited potent inhibition of chitinase from OfChi-h and OfChtI at low nanomolar concentrations (IC50 = 1.51 and 9.21 nM, respectively). Molecular docking simulations suggested that 8c binds to chitinase by mimicking the interaction of chitin oligosaccharide substrates with chitinase. At low ppm concentrations, compound 8c performed comparably to commercial insecticides in controlling the highly destructive plant pest, the Asian corn borer. Tests on a wide range of nontarget organisms indicate that compound 8c has very low toxicity. In addition, the effect of inhibitor treatment on the expression of genes associated with the Asian corn borer chitin-degrading enzymes was further investigated by quantitative real-time polymerase chain reaction. In conclusion, our study highlights the potential of 8c as a novel chitinase-targeting insecticide for effective control of the Asian corn borer, providing a promising solution in the quest for sustainable pest management.
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Affiliation(s)
- Peibo Liang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, P. R. China
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China
| | - Jianyang Li
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, P. R. China
| | - Wei Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection and Shenzhen Agricultural Genome Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Hong Zhou
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P. R. China
| | - Xiangning Lai
- Institute of Pesticide Science, College of Plant Protection, Southwest University, Chongqing 400715, P. R. China
| | - Jingmin Li
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, P. R. China
| | - Zhiyuan Xu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, P. R. China
| | - Qing Yang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection and Shenzhen Agricultural Genome Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Jianjun Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, P. R. China
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2
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Ren Y, Li Y, Ju Y, Zhang W, Wang Y. Insect cuticle and insecticide development. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2023; 114:e22057. [PMID: 37840232 DOI: 10.1002/arch.22057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/07/2023] [Accepted: 10/02/2023] [Indexed: 10/17/2023]
Abstract
Insecticide resistance poses a significant challenge, diminishing the effectiveness of chemical insecticides. To address this global concern, the development of novel and efficient pest management technologies based on chemical insecticides is an ongoing necessity. The insect cuticle, a highly complex and continuously renewing organ, plays a crucial role in this context. On one hand, as the most vital structure, it serves as a suitable target for insecticides. On the other hand, it acts as the outermost barrier, isolating the insect's inner organs from the environment, and thus offering resistance to contact with insecticides, preventing their entry into insect bodies. Our work focuses on key targets concerning cuticle formation and the interaction between the cuticle and contact insecticides. Deeper studying insect cuticles and understanding their structure-function relationship, formation process, and regulatory mechanisms during cuticle development, as well as investigating insecticide resistance related to the barrier properties of insect cuticles, are promising strategies not only for developing novel insecticides but also for discovering general synergists for contact insecticides. With this comprehensive review, we hope to contribute valuable insights into the development of effective pest management solutions and the mitigation of insecticide resistance.
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Affiliation(s)
- Yunuo Ren
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Ying Li
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Yingjie Ju
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Wen Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Yiwen Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
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3
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Yee DA, Niwa K, Perlatti B, Chen M, Li Y, Tang Y. Genome mining for unknown-unknown natural products. Nat Chem Biol 2023; 19:633-640. [PMID: 36702957 PMCID: PMC10159913 DOI: 10.1038/s41589-022-01246-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 12/20/2022] [Indexed: 01/27/2023]
Abstract
Genome mining of biosynthetic pathways with no identifiable core enzymes can lead to discovery of the so-called unknown (biosynthetic route)-unknown (molecular structure) natural products. Here we focused on a conserved fungal biosynthetic pathway that lacks a canonical core enzyme and used heterologous expression to identify the associated natural product, a highly modified cyclo-arginine-tyrosine dipeptide. Biochemical characterization of the pathway led to identification of a new arginine-containing cyclodipeptide synthase (RCDPS), which was previously annotated as a hypothetical protein and has no sequence homology to non-ribosomal peptide synthetase or bacterial cyclodipeptide synthase. RCDPS homologs are widely encoded in fungal genomes; other members of this family can synthesize diverse cyclo-arginine-Xaa dipeptides, and characterization of a cyclo-arginine-tryptophan RCDPS showed that the enzyme is aminoacyl-tRNA dependent. Further characterization of the biosynthetic pathway led to discovery of new compounds whose structures would not have been predicted without knowledge of RCDPS function.
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Affiliation(s)
- Danielle A Yee
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA
- Hexagon Bio, Menlo Park, CA, USA
| | - Kanji Niwa
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Bruno Perlatti
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, USA
- Hexagon Bio, Menlo Park, CA, USA
| | - Mengbin Chen
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Process Research and Development, Merck & Co., Inc., Rahway, NJ, USA
| | - Yuqing Li
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Yi Tang
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, USA.
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4
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Zhao Z, Chen W, Wang S, Dong Y, Yang Q, Zhang J. Rational Design of N-Methylcarbamoylguanidinyl Derivatives as Highly Potent Dual-Target Chitin Hydrolase Inhibitors for Retarding Growth of Pest Insects. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2817-2826. [PMID: 36735960 DOI: 10.1021/acs.jafc.2c07605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Chitin degradation is a vital process for the growth of insects. Chitin hydrolase OfChtI and β-N-acetylhexosaminidase OfHex1 are two key enzymes involved in hydrolyzing the chitin of insects' cuticles. Thus, they are considered promising targets for preventing and controlling agricultural pests. In this study, we designed and synthesized a series of compounds bearing N-methylcarbamoylguanidinyl and N-methoxycarbonylguanidinyl as dual-target inhibitors of OfChtI and OfHex1. The most potent dual-target inhibitor, compound 10d, exhibited half-maximal inhibitory concentration (IC50) values of 27.1 and 249.1 nM against OfChtI and OfHex1, respectively. Furthermore, the insecticidal activity studies showed that compounds 10a-c, 10k, and 10l bear significant effects on the growth and development of Plutella xylostella. This work provides a promising method for the development of novel chitin hydrolase inhibitors as potential pest control and management agents.
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Affiliation(s)
- Zhixiang Zhao
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, People's Republic of China
| | - Wei Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing100193, People's Republic of China
| | - Simin Wang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, People's Republic of China
| | - Yanhong Dong
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, People's Republic of China
| | - Qing Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing100193, People's Republic of China
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen518120, People's Republic of China
| | - Jianjun Zhang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, People's Republic of China
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5
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Thakur D, Chauhan A, Jhilta P, Kaushal R, Dipta B. Microbial chitinases and their relevance in various industries. Folia Microbiol (Praha) 2023; 68:29-53. [PMID: 35972681 DOI: 10.1007/s12223-022-00999-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/31/2022] [Indexed: 01/09/2023]
Abstract
Chitin, the second most abundant biopolymer on earth after cellulose, is composed of β-1,4-N-acetylglucosamine (GlcNAc) units. It is widely distributed in nature, especially as a structural polysaccharide in the cell walls of fungi, the exoskeletons of crustaceans, insects, and nematodes. However, the principal commercial source of chitin is the shells of marine or freshwater invertebrates. Microbial chitinases are largely responsible for chitin breakdown in nature, and they play an important role in the ecosystem's carbon and nitrogen balance. Several microbial chitinases have been characterized and are gaining prominence for their applications in various sectors. The current review focuses on chitinases of microbial origin, their diversity, and their characteristics. The applications of chitinases in several industries such as agriculture, food, the environment, and pharmaceutical sectors are also highlighted.
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Affiliation(s)
- Deepali Thakur
- Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, 173230, Himachal Pradesh, India
| | - Anjali Chauhan
- Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, 173230, Himachal Pradesh, India
| | - Prakriti Jhilta
- Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, 173230, Himachal Pradesh, India
| | - Rajesh Kaushal
- Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, 173230, Himachal Pradesh, India
| | - Bhawna Dipta
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India.
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6
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Identification and virtual based screening of the bioinsecticidal potential of Metarhizium anisopliae destruxins as inhibitors of Culex quinquefasciatus chitinase activity. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01103-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Zhao Z, Xu Q, Chen W, Wang S, Yang Q, Dong Y, Zhang J. Rational Design, Synthesis, and Biological Investigations of N-Methylcarbamoylguanidinyl Azamacrolides as a Novel Chitinase Inhibitor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4889-4898. [PMID: 35416043 DOI: 10.1021/acs.jafc.2c00016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Chitinase is one of the most important glycoside hydrolyases, widely existing in bacteria, fungi, insects, and plants. It is involved in fungal cell wall remodeling and insect molting. Chitinase inhibitors are an effective means of controlling pathogens and pests. Natural product argifin is a 17-membered pentapeptide that exhibits efficient chitinase inhibitory activity. However, the complexity of the synthetic process results in a lot of restrictions for wide range of applications. In this work, we designed a series of azamacrolide chitinase inhibitors based on the structural features of argifin that have high inhibitory activities against bacterial and insectile chitinase. The most potent chitinase inhibitor compound 19c exhibited IC50 values of 56 nM and 110 nM against OfChi-h and SmChiB, respectively. The molecular docking and molecular dynamics simulations revealed that all inhibitors were bound to the -1 subsite of chitinases via N-methylcarbamoylguanidinyl as well as argifin. Finally, a bioactivity assay against pests was carried out. Compound 18a showed 80% mortality for Mythimna separata at a concentration of 50 mg/L. Besides, insecticides 19b and 19c exhibited high mortality against Plutella xylostella (76 and 73% mortalities at 50 mg/L, respectively).
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Affiliation(s)
- Zhixiang Zhao
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
| | - Qingbo Xu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
| | - Wei Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Siming Wang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
| | - Qing Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yanhong Dong
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
| | - Jianjun Zhang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
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8
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Zhang Y, Xiao G. Chemical synthesis of TMG-chitotriomycin. J Carbohydr Chem 2021. [DOI: 10.1080/07328303.2021.2009504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yunqin Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, China
| | - Guozhi Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, China
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9
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Bakhtiyarizadeh M, Mohammadipanah F, Ghasemi JB. In vitro and in silico pharmaceutical activities of the methylated cyclic pentapeptide, persipeptides. J Appl Microbiol 2021; 132:429-444. [PMID: 34297456 DOI: 10.1111/jam.15231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 05/20/2021] [Accepted: 07/01/2021] [Indexed: 11/27/2022]
Abstract
AIMS The persipeptides were recognized as a promising source of multiple pharmaceutical activities which were revealed following structure-activity prediction and examination in experimental analysis. METHODS AND RESULTS The profile of toxicity, antioxidant, anti-inflammatory, anti-diabetic and anti-ageing activity of persipeptides and the crude extract were evaluated experimentally. The pure Persipeptide A and B revealed a moderate xanthine oxidase inhibition activity at the concentration of 10 µg/ml. Persipeptide exhibited α-glucosidase inhibition activity (~10% inhibition) and less than 2% tyrosinase inhibition activity at the concentration of 10 µg/ml. The extract exhibited the inhibition of less than 2% acetylcholine esterase inhibition activity, but the pure persipeptide showed 6%-14% inhibition activity at the concentration of 10 µg/ml. The molecular docking analysis revealed that the activities of Persipeptide A and B are due to interaction with xanthin oxidase, α-amylase, α-glucosidase, tyrosinase and acetylcholine esterase enzymes. CONCLUSIONS The persipeptides showed a similar inhibition rate with positive control that might imply its potential as an anti-diabetic and anti-gout compound among. Only acetylcholine esterase inhibition of persipeptide was higher than the extract. The interacting amino acids of the molecules with different targets show that persipeptides might have antioxidant, anti-inflammatory, anti-diabetic, anti-ageing activity and even other potential pharmaceutical activities that were not investigated in this study. SIGNIFICANCE AND IMPACT OF THE STUDY This report was presented to find some new pharmaceutical activities of Persipeptide A and B including the α-glucosidase inhibition activity as a molecular target of diabetes mellitus. Persipeptides also exhibited an effective inhibition of xanthine oxidase (XO) which can be a drug-like candidate in the treatment of diseases associated with XO like gout. The binding values indicated the interaction of persipeptides with these enzymes.
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Affiliation(s)
- Maliheh Bakhtiyarizadeh
- Pharmaceutical Biotechnology Lab, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
| | - Fatemeh Mohammadipanah
- Pharmaceutical Biotechnology Lab, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
| | - Jahan B Ghasemi
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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10
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Gomaa EZ. Microbial chitinases: properties, enhancement and potential applications. PROTOPLASMA 2021; 258:695-710. [PMID: 33483852 DOI: 10.1007/s00709-021-01612-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
Chitinases are a category of hydrolytic enzymes that catalyze chitin and are formed by a wide variety of microorganisms. In nature, microbial chitinases are primarily responsible for chitin decomposition and play a vital role in the balance of carbon and nitrogen ratio in the ecosystem. The physicochemical attributes and the source of chitinase are the main bases that determine their functional characteristics and hydrolyzed products. Several chitinases have been reported and characterized, and they obtain a wider consideration for their utilization in a large number of uses such as in agriculture, food, environment, medicine and pharmaceutical companies. The antifungal and insecticidal impacts of several chitinases have been extensively studied, aiming to protect crops from phytopathogenic fungi and insects. Chitooligosaccharides synthesized by chitin degradation have been shown to improve human health through their antimicrobial, antioxidant, anti-inflammatory and antitumor properties. This review aims at investigating chitinase production, properties and their potential applications in various biotechnological fields.
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Affiliation(s)
- Eman Zakaria Gomaa
- Department of Biological and Geological Sciences, Faculty of Education, Ain Shams University, Cairo, Egypt.
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11
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Chen L, Zhu L, Chen J, Chen W, Qian X, Yang Q. Crystal structure-guided design of berberine-based novel chitinase inhibitors. J Enzyme Inhib Med Chem 2021; 35:1937-1943. [PMID: 33167737 PMCID: PMC7655067 DOI: 10.1080/14756366.2020.1837123] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Glycoside hydrolase family 18 (GH18) chitinases play an important role in various organisms ranging from bacteria to mammals. Chitinase inhibitors have potential applications as pesticides, fungicides, and anti-asthmatics. Berberine, a plant-derived isoquinoline alkaloid, was previously reported to inhibit against various GH18 chitinases with only moderate Ki values ranging between 20 and 70 μM. In this report, we present for the first time the berberine-complexed crystal structure of SmChiB, a model GH18 chitinase from the bacterium Serratia marcescens. Based on the berberine-binding mode, a hydrophobic cavity-based optimisation strategy was developed to increase their inhibitory activity. A series of berberine derivatives were designed and synthesised, and their inhibitory activities against GH18 chitinases were evaluated. The compound 4c showed 80-fold-elevated inhibitory activity against SmChiB and the human chitinase hAMCase with Ki values at the sub-micromolar level. The mechanism of improved inhibitory activities was proposed. This work provides a new strategy for developing novel chitinase inhibitors.
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Affiliation(s)
- Lei Chen
- School of Bioengineering, Dalian University of Technology, Dalian, China.,State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ling Zhu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Jinli Chen
- School of Bioengineering, Dalian University of Technology, Dalian, China
| | - Wei Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xuhong Qian
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Qing Yang
- School of Bioengineering, Dalian University of Technology, Dalian, China.,State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Guangdong Laboratory for Lingnan Modern Agriculture, (Shenzhen Branch), Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
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12
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Glycoside hydrolase family 18 chitinases: The known and the unknown. Biotechnol Adv 2020; 43:107553. [DOI: 10.1016/j.biotechadv.2020.107553] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/09/2020] [Accepted: 04/20/2020] [Indexed: 12/13/2022]
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13
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Han P, Zhang X, Xu D, Zhang B, Lai D, Zhou L. Metabolites from Clonostachys Fungi and Their Biological Activities. J Fungi (Basel) 2020; 6:E229. [PMID: 33081356 PMCID: PMC7712584 DOI: 10.3390/jof6040229] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/07/2020] [Accepted: 10/12/2020] [Indexed: 11/25/2022] Open
Abstract
Clonostachys (teleomorph: Bionectria) fungi are well known to produce a variety of secondary metabolites with various biological activities to show their pharmaceutical and agrochemical applications. Up to now, at least 229 secondary metabolites, mainly including 84 nitrogen-containing metabolites, 85 polyketides, 40 terpenoids, and 20 other metabolites, have been reported. Many of these compounds exhibit biological activities, such as cytotoxic, antimicrobial, antileishmanial, antimalarial activities. This mini-review aims to summarize the diversity of the secondary metabolites as well as their occurrences in Clonostachys fungi and biological activities.
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Affiliation(s)
| | | | | | | | | | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China; (P.H.); (X.Z.); (D.X.); (B.Z.); (D.L.)
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14
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Andryianau G, Kowalski M, Piotrowicz MC, Rajkiewicz AA, Dymek B, Sklepkiewicz PL, Pluta E, Stefaniak F, Czestkowski W, Olejniczak S, Mazur M, Niedziejko P, Koralewski R, Matyszewski K, Gruza M, Zagozdzon A, Salamon M, Rymaszewska A, Welzer M, Dzwonek K, Golab J, Olczak J, Bartoszewicz A, Golebiowski A. Benzoxazepine-Derived Selective, Orally Bioavailable Inhibitor of Human Acidic Mammalian Chitinase. ACS Med Chem Lett 2020; 11:1228-1235. [PMID: 32551005 DOI: 10.1021/acsmedchemlett.0c00092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 04/24/2020] [Indexed: 01/06/2023] Open
Abstract
Human acidic mammalian chitinase (hAMCase) is one of two true chitinases in humans, the function of which remains elusive. In addition to the defense against highly antigenic chitin and chitin-containing pathogens in the gastric and intestinal contents, AMCase has been implicated in asthma, allergic inflammation, and ocular pathologies. Potent and selective small-molecule inhibitors of this enzyme have not been identified to date. Here we describe structural modifications of compound OAT-177, a previously developed inhibitor of mouse AMCase, leading to OAT-1441, which displays high activity and selectivity toward hAMCase. Significantly reduced off-target activity toward the human ether-à-go-go-related gene (hERG) and a good pharmacokinetic profile make OAT-1441 a potential candidate for further preclinical development as well as a useful tool compound to study the physiological role of hAMCase.
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Affiliation(s)
- Gleb Andryianau
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Michal Kowalski
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | | | - Adam A. Rajkiewicz
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
- Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097 Warsaw, Poland
| | - Barbara Dymek
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | | | - Elzbieta Pluta
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Filip Stefaniak
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
- Laboratory of Bioinformatics and Protein Engineering, International Institute of Molecular and Cell Biology in Warsaw, Ks. Trojdena 4, 02-109 Warsaw, Poland
| | | | - Sylwia Olejniczak
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Marzena Mazur
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Piotr Niedziejko
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Robert Koralewski
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | | | - Mariusz Gruza
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | | | - Magdalena Salamon
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | | | - Mikolaj Welzer
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Karolina Dzwonek
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Jakub Golab
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
- Department of Immunology, Medical University of Warsaw, Nielubowicza 5, 02-097 Warsaw, Poland
| | - Jacek Olczak
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | | | - Adam Golebiowski
- OncoArendi Therapeutics S.A., Żwirki i Wigury 101, 02-089 Warsaw, Poland
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15
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Yang H, Qi H, Hao Z, Shao X, Liu T, Yang Q, Qian X. Thiazolylhydrazone dervatives as inhibitors for insect N-acetyl-β-d-hexosaminidase and chitinase. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.11.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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16
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Sharma RK, Singh V, Tiwari N, Butcher R, Katiyar D. Synthesis, antimicrobial and chitinase inhibitory activities of 3-amidocoumarins. Bioorg Chem 2020; 98:103700. [DOI: 10.1016/j.bioorg.2020.103700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 01/30/2020] [Accepted: 02/24/2020] [Indexed: 12/15/2022]
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17
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da Silva RR, do Couto Santos R. Pest Control: Can Chitinases Help To Reduce Pesticide Use? JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:8071-8073. [PMID: 31306013 DOI: 10.1021/acs.jafc.9b03219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Ronivaldo Rodrigues da Silva
- Instituto de Biociências, Letras e Ciências Exatas , Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) , 15054-000 São José do Rio Preto , São Paulo , Brazil
| | - Rafaela do Couto Santos
- LEAF, Instituto Superior de Agronomia , Universidade de Lisboa , Tapada da Ajuda, 1349-017 Lisboa , Portugal
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18
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Chen W, Zhou Y, Yang Q. Structural dissection reveals a general mechanistic principle for group II chitinase (ChtII) inhibition. J Biol Chem 2019; 294:9358-9364. [PMID: 31053640 DOI: 10.1074/jbc.ra119.007812] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/30/2019] [Indexed: 12/13/2022] Open
Abstract
Small-molecule inhibitors of insect chitinases have potential applications for controlling insect pests. Insect group II chitinase (ChtII) is the most important chitinase in insects and functions throughout all developmental stages. However, the possibility of inhibiting ChtII by small molecules has not been explored yet. Here, we report the structural characteristics of four molecules that exhibited similar levels of inhibitory activity against OfChtII, a group II chitinase from the agricultural pest Asian corn borer Ostrinia furnacalis These inhibitors were chitooctaose ((GlcN)8), dipyrido-pyrimidine derivative (DP), piperidine-thienopyridine derivative (PT), and naphthalimide derivative (NI). The crystal structures of the OfChtII catalytic domain complexed with each of the four inhibitors at 1.4-2.0 Å resolutions suggested they all exhibit similar binding modes within the substrate-binding cleft; specifically, two hydrophobic groups of the inhibitor interact with +1/+2 tryptophan and a -1 hydrophobic pocket. The structure of the (GlcN)8 complex surprisingly revealed that the oligosaccharide chain of the inhibitor is orientated in the opposite direction to that previously observed in complexes with other chitinases. Injection of the inhibitors into 4th instar O. furnacalis larvae led to defects in development and pupation. The results of this study provide insights into a general mechanistic principle that confers inhibitory activity against ChtII, which could facilitate rational design of agrochemicals that target ecdysis of insect pests.
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Affiliation(s)
- Wei Chen
- From the State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 2 West Yuanmingyuan Road, Beijing 100193, China and
| | - Yong Zhou
- School of Biotechnology and School of Software, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Qing Yang
- From the State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 2 West Yuanmingyuan Road, Beijing 100193, China and .,School of Biotechnology and School of Software, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
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19
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Synthesis, homology modeling, molecular docking, dynamics, and antifungal screening of new 4-hydroxycoumarin derivatives as potential chitinase inhibitors. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.099] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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20
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Kumar A, Zhang KYJ. Human Chitinases: Structure, Function, and Inhibitor Discovery. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1142:221-251. [PMID: 31102249 DOI: 10.1007/978-981-13-7318-3_11] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chitinases are glycosyl hydrolases that hydrolyze the β-(1-4)-linkage of N-acetyl-D-glucosamine units present in chitin polymers. Chitinases are widely distributed enzymes and are present in a wide range of organisms including insects, plants, bacteria, fungi, and mammals. These enzymes play key roles in immunity, nutrition, pathogenicity, and arthropod molting. Humans express two chitinases, chitotriosidase 1 (CHIT1) and acid mammalian chitinase (AMCase) along with several chitinase-like proteins (CLPs). Human chitinases are reported to play a protective role against chitin-containing pathogens through their capability to degrade chitin present in the cell wall of pathogens. Now, human chitinases are gaining attention as the key players in innate immune response. Although the exact mechanism of their role in immune response is not known, studies in recent years begin to relate chitin recognition and degradation with the activation of signaling pathways involved in inflammation. The roles of both CHIT1 and AMCase in the development of various diseases have been revealed and several classes of inhibitors have been developed. However, a clear understanding could not be established due to complexities in the design of the right experiment for studying the role of human chitinase in various diseases. In this chapter, we will first outline the structural features of CHIT1 and AMcase. We will then review the progress in understanding the role of human chitinases in the development of various diseases. Finally, we will summarize the inhibitor discovery efforts targeting both CHIT1 and AMCase.
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Affiliation(s)
- Ashutosh Kumar
- Laboratory for Structural Bioinformatics, Center for Biosystems Dynamics Research, RIKEN, 1-7-22 Suehiro, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
| | - Kam Y J Zhang
- Laboratory for Structural Bioinformatics, Center for Biosystems Dynamics Research, RIKEN, 1-7-22 Suehiro, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan.
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21
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Tetreau G, Wang P. Chitinous Structures as Potential Targets for Insect Pest Control. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1142:273-292. [PMID: 31102251 DOI: 10.1007/978-981-13-7318-3_13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chitinous structures are physiologically fundamental in insects. They form the insect exoskeleton, play important roles in physiological systems and provide physical, chemical and biological protections in insects. As critically important structures in insects, chitinous structures are attractive target sites for the development of new insect-pest-control strategies. Chitinous structures in insects are complex and their formation and maintenance are dynamically regulated with the growth and development of insects. In the past few decades, studies on insect chitinous structures have shed lights on the physiological functions, compositions, structural formation, and regulation of the chitinous structures. Current understanding of the chitinous structures has indicated opportunities for exploring new target sites for insect control. Mechanisms to disrupt chitinous structures in insects have been studied and strategies for the potential development of new means of insect control by targeting chitinous structures have been proposed and are practically to be explored.
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Affiliation(s)
- Guillaume Tetreau
- University of Grenoble Alpes, CNRS, CEA, IBS, 38000, Grenoble, France
| | - Ping Wang
- Department of Entomology, Cornell University, Geneva, NY, 14456, USA.
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22
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Marine chitinolytic enzymes, a biotechnological treasure hidden in the ocean? Appl Microbiol Biotechnol 2018; 102:9937-9948. [PMID: 30276711 DOI: 10.1007/s00253-018-9385-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/04/2018] [Accepted: 09/06/2018] [Indexed: 12/11/2022]
Abstract
Chitinolytic enzymes are capable to catalyze the chitin hydrolysis. Due to their biomedical and biotechnological applications, nowadays chitinolytic enzymes have attracted worldwide attention. Chitinolytic enzymes have provided numerous useful materials in many different industries, such as food, pharmaceutical, cosmetic, or biomedical industry. Marine enzymes are commonly employed in industry because they display better operational properties than animal, plant, or bacterial homologs. In this mini-review, we want to describe marine chitinolytic enzymes as versatile enzymes in different biotechnological fields. In this regard, interesting comments about their biological role, reaction mechanism, production, functional characterization, immobilization, and biotechnological application are shown in this work.
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23
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Dong Y, Jiang X, Liu T, Ling Y, Yang Q, Zhang L, He X. Structure-Based Virtual Screening, Compound Synthesis, and Bioassay for the Design of Chitinase Inhibitors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:3351-3357. [PMID: 29554796 DOI: 10.1021/acs.jafc.8b00017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Chitinases play a vital part in the molting phase of insect pests. Inhibiting their activities by the use of drug-like small chemical molecules is thought to be an efficient strategy in pesticide design and development. On the basis of the crystal structure of OfChtI, a chitinase indispensable for the molting of the insect pest Ostrinia furnacalis (Asian corn borer), here we report a chemical fragment and five variant compounds as inhibitors of OfChtI obtained from a library of over 200 000 chemicals by a structure-based-virtual-screening approach. The compounds were synthesized with high atom economy and tested for their OfChtI-inhibitory activities in a bioassay. Compound 3 showed preferential inhibitory activity with a Ki value of 1.5 μΜ against OfChtI. Analysis of the structure-activity relationships of the compounds provided insight into their interactions with the enzyme active site, which may inform future work in improving the potencies of their inhibitory activities.
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Affiliation(s)
- Yawen Dong
- Department of Applied Chemistry, College of Science , China Agricultural University , Beijing 100193 , China
| | - Xi Jiang
- State Key Laboratory of Fine Chemicals and School of Life Science and Biotechnology , Dalian University of Technology , Dalian 116024 , China
| | - Tian Liu
- State Key Laboratory of Fine Chemicals and School of Life Science and Biotechnology , Dalian University of Technology , Dalian 116024 , China
| | - Yun Ling
- Department of Applied Chemistry, College of Science , China Agricultural University , Beijing 100193 , China
| | - Qing Yang
- State Key Laboratory of Fine Chemicals and School of Life Science and Biotechnology , Dalian University of Technology , Dalian 116024 , China
| | - Li Zhang
- Department of Applied Chemistry, College of Science , China Agricultural University , Beijing 100193 , China
| | - Xiongkui He
- Department of Applied Chemistry, College of Science , China Agricultural University , Beijing 100193 , China
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24
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Wang X, Lin M, Xu D, Lai D, Zhou L. Structural Diversity and Biological Activities of Fungal Cyclic Peptides, Excluding Cyclodipeptides. Molecules 2017; 22:E2069. [PMID: 29186926 PMCID: PMC6150023 DOI: 10.3390/molecules22122069] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 11/20/2017] [Accepted: 11/23/2017] [Indexed: 11/23/2022] Open
Abstract
Cyclic peptides are cyclic compounds formed mainly by the amide bonds between either proteinogenic or non-proteinogenic amino acids. This review highlights the occurrence, structures and biological activities of fungal cyclic peptides (excluding cyclodipeptides, and peptides containing ester bonds in the core ring) reported until August 2017. About 293 cyclic peptides belonging to the groups of cyclic tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, deca-, undeca-, dodeca-, tetradeca-, and octadecapeptides as well as cyclic peptides containing ether bonds in the core ring have been isolated from fungi. They were mainly isolated from the genera Aspergillus, Penicillium, Fusarium, Acremonium and Amanita. Some of them were screened to have antimicrobial, antiviral, cytotoxic, phytotoxic, insecticidal, nematicidal, immunosuppressive and enzyme-inhibitory activities to show their potential applications. Some fungal cyclic peptides such as the echinocandins, pneumocandins and cyclosporin A have been developed as pharmaceuticals.
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Affiliation(s)
- Xiaohan Wang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Minyi Lin
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Dan Xu
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Daowan Lai
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
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25
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Chen L, Liu T, Duan Y, Lu X, Yang Q. Microbial Secondary Metabolite, Phlegmacin B 1, as a Novel Inhibitor of Insect Chitinolytic Enzymes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:3851-3857. [PMID: 28457127 DOI: 10.1021/acs.jafc.7b01710] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Periodic chitin remodeling during insect growth and development requires a synergistic action of two glycosyl hydrolase (GH) family enzymes, GH18 chitinase and GH20 β-N-acetylhexosaminidase (Hex). Inhibiting either or both of these enzymes is a promising strategy for pest control and management. In this study, OfChi-h (a GH18 chitinase) and OfHex1 (a GH20 Hex) from Ostrinia furnacalis were used to screen a library of microbial secondary metabolites. Phlegmacin B1 was found to be the inhibitor of both OfChi-h and OfHex1 with Ki values of 5.5 μM and 26 μM, respectively. Injection and feeding experiments demonstrated that phlegmacin B1 has insecticidal effect on O. furnacalis's larvae. Phlegmacin B1 was predicted to bind to the active pockets of both OfChi-h and OfHex1. Phlegmacin B1 also showed moderate inhibitory activities against other bacterial and insect GH18 enzymes. This work provides an example of exploiting microbial secondary metabolites as potential pest control and management agents.
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Affiliation(s)
- Lei Chen
- State Key Laboratory of Fine Chemical Engineering and School of Life Science and Biotechnology, Dalian University of Technology , Dalian 116024, China
| | - Tian Liu
- State Key Laboratory of Fine Chemical Engineering and School of Life Science and Biotechnology, Dalian University of Technology , Dalian 116024, China
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences , Beijing 100193, China
| | - Yanwei Duan
- State Key Laboratory of Fine Chemical Engineering and School of Life Science and Biotechnology, Dalian University of Technology , Dalian 116024, China
| | - Xinhua Lu
- New Drug Research & Development Center, North China Pharmaceutical Group Corporation , Shijiazhuang 050015, China
| | - Qing Yang
- State Key Laboratory of Fine Chemical Engineering and School of Life Science and Biotechnology, Dalian University of Technology , Dalian 116024, China
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences , Beijing 100193, China
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26
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Jiang X, Kumar A, Liu T, Zhang KYJ, Yang Q. A Novel Scaffold for Developing Specific or Broad-Spectrum Chitinase Inhibitors. J Chem Inf Model 2016; 56:2413-2420. [PMID: 28024404 DOI: 10.1021/acs.jcim.6b00615] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chitinases play important roles in pathogen invasion, arthropod molting, plant defense, and human inflammation. Inhibition of the activity of a typical chitinase by small molecules is of significance in drug development and biological research. On the basis of a recent reported crystal structure of OfChtI, the insect chitinase derived from the pest Ostrinia furnacalis, we computationally identified 17 compounds from a library of over 4 million chemicals by two rounds virtual screening. Among these, three compounds from one chemical class inhibited the activity of OfChtI with single-digit-micromolar IC50 values, and one compound from another chemical class exhibited a broad inhibitory activity not only toward OfChtI but also toward bacterial, fungal, and human chitinases. A new scaffold was discovered, and a structure-inhibitory activity relationship was proposed. This work may provide a novel starting point for the development of specific or broad-spectrum chitinase inhibitors.
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Affiliation(s)
- Xi Jiang
- State Key Laboratory of Fine Chemicals and School of Life Science and Biotechnology, Dalian University of Technology , No. 2 Linggong Road, Dalian 116024, China
| | - Ashutosh Kumar
- Structural Bioinformatics Team, Center for Life Science Technologies, RIKEN , 1-7-22 Suehiro, Tsurumi, Yokohama, Kanagawa 230-0045, Japan
| | - Tian Liu
- State Key Laboratory of Fine Chemicals and School of Life Science and Biotechnology, Dalian University of Technology , No. 2 Linggong Road, Dalian 116024, China
| | - Kam Y J Zhang
- Structural Bioinformatics Team, Center for Life Science Technologies, RIKEN , 1-7-22 Suehiro, Tsurumi, Yokohama, Kanagawa 230-0045, Japan
| | - Qing Yang
- State Key Laboratory of Fine Chemicals and School of Life Science and Biotechnology, Dalian University of Technology , No. 2 Linggong Road, Dalian 116024, China.,Institute of Plant Protection, Chinese Academy of Agricultural Sciences , Beijing 100193, China
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27
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Kamou NN, Dubey M, Tzelepis G, Menexes G, Papadakis EN, Karlsson M, Lagopodi AL, Jensen DF. Investigating the compatibility of the biocontrol agent Clonostachys rosea IK726 with prodigiosin-producing Serratia rubidaea S55 and phenazine-producing Pseudomonas chlororaphis ToZa7. Arch Microbiol 2016; 198:369-77. [PMID: 26860841 DOI: 10.1007/s00203-016-1198-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/07/2016] [Accepted: 01/28/2016] [Indexed: 01/06/2023]
Abstract
This study was carried out to assess the compatibility of the biocontrol fungus Clonostachys rosea IK726 with the phenazine-producing Pseudomonas chlororaphis ToZa7 or with the prodigiosin-producing Serratia rubidaea S55 against Fusarium oxysporum f. sp. radicis-lycopersici. The pathogen was inhibited by both strains in vitro, whereas C. rosea displayed high tolerance to S. rubidaea but not to P. chlororaphis. We hypothesized that this could be attributed to the ATP-binding cassette (ABC) proteins. The results of the reverse transcription quantitative PCR showed an induction of seven genes (abcB1, abcB20, abcB26, abcC12, abcC12, abcG8 and abcG25) from subfamilies B, C and G. In planta experiments showed a significant reduction in foot and root rot on tomato plants inoculated with C. rosea and P. chlororaphis. This study demonstrates the potential for combining different biocontrol agents and suggests an involvement of ABC transporters in secondary metabolite tolerance in C. rosea.
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Affiliation(s)
- Nathalie N Kamou
- Laboratory of Plant Pathology, School of Agriculture, Aristotle University of Thessaloniki, P.O. Box 269, 541 24, Thessaloniki, Greece.
| | - Mukesh Dubey
- Department of Forest Mycology and Plant Pathology, Uppsala BioCenter, Swedish University of Agricultural Sciences, Box 7026, 75007, Uppsala, Sweden
| | - Georgios Tzelepis
- Department of Forest Mycology and Plant Pathology, Uppsala BioCenter, Swedish University of Agricultural Sciences, Box 7026, 75007, Uppsala, Sweden.,Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, Box 7080, 75007, Uppsala, Sweden
| | - Georgios Menexes
- Laboratory of Agronomy, School of Agriculture, Aristotle University of Thessaloniki, P.O. Box 269, 541 24, Thessaloniki, Greece
| | - Emmanouil N Papadakis
- Laboratory of Pesticide Science, Department of Agriculture, Aristotle University of Thessaloniki, P.O. Box 1678, 540 06, Thessaloniki, Greece
| | - Magnus Karlsson
- Department of Forest Mycology and Plant Pathology, Uppsala BioCenter, Swedish University of Agricultural Sciences, Box 7026, 75007, Uppsala, Sweden
| | - Anastasia L Lagopodi
- Laboratory of Plant Pathology, School of Agriculture, Aristotle University of Thessaloniki, P.O. Box 269, 541 24, Thessaloniki, Greece
| | - Dan Funck Jensen
- Department of Forest Mycology and Plant Pathology, Uppsala BioCenter, Swedish University of Agricultural Sciences, Box 7026, 75007, Uppsala, Sweden
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28
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Hirose T, Sunazuka T, Ōmura S. Rapid Identification via <i>In Situ</i> Click Chemistry of a Novel Chitinase Inhibitor. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.1090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tomoyasu Hirose
- Kitasato Institute for Life Sciences, Kitasato University
- Graduate School of Infection Control Sciences, Kitasato University
| | - Toshiaki Sunazuka
- Kitasato Institute for Life Sciences, Kitasato University
- Graduate School of Infection Control Sciences, Kitasato University
| | - Satoshi Ōmura
- Kitasato Institute for Life Sciences, Kitasato University
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29
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Koseki J, Gouda H, Hirono S. Molecular Orbital Study of the Formation of Intramolecular Hydrogen Bonding of a Ligand Molecule in a Protein Aromatic Hydrophobic Pocket. Chem Pharm Bull (Tokyo) 2016; 64:1031-5. [DOI: 10.1248/cpb.c16-00126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Jun Koseki
- Department of Pharmaceutical Sciences, School of Pharmacy, Kitasato University
- Quantum Chemistry Division, Graduate School of Science, Yokohama City University
| | - Hiroaki Gouda
- Department of Pharmaceutical Sciences, School of Pharmacy, Kitasato University
- School of Pharmacy, Showa University
| | - Shuichi Hirono
- Department of Pharmaceutical Sciences, School of Pharmacy, Kitasato University
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30
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Sugawara A, Maita N, Gouda H, Yamamoto T, Hirose T, Kimura S, Saito Y, Nakano H, Kasai T, Nakano H, Shiomi K, Hirono S, Watanabe T, Taniguchi H, O̅mura S, Sunazuka T. Creation of Customized Bioactivity within a 14-Membered Macrolide Scaffold: Design, Synthesis, and Biological Evaluation Using a Family-18 Chitinase. J Med Chem 2015; 58:4984-97. [DOI: 10.1021/acs.jmedchem.5b00175] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Akihiro Sugawara
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Nobuo Maita
- Institute
for Enzyme Research, University of Tokushima, 3-18-15 Kuramotocho, Tokushima City, Tokushima, 770-8503, Japan
| | - Hiroaki Gouda
- School
of Pharmacy, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Tsuyoshi Yamamoto
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Tomoyasu Hirose
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Saori Kimura
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yoshifumi Saito
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hayato Nakano
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Takako Kasai
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hirofumi Nakano
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kazuro Shiomi
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Shuichi Hirono
- School
of Pharmacy, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Takeshi Watanabe
- Department
of Applied Biological Chemistry, Faculty of Agriculture, Niigata University, 8050 Ikarashi-2, Niigata 950-2181, Japan
| | - Hisaaki Taniguchi
- Institute
for Enzyme Research, University of Tokushima, 3-18-15 Kuramotocho, Tokushima City, Tokushima, 770-8503, Japan
| | - Satoshi O̅mura
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Toshiaki Sunazuka
- The
Kitasato Institute, Kitasato Institute for Life Sciences and Graduate
School of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
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31
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Kishimoto S, Nishimura S, Hatano M, Igarashi M, Kakeya H. Total Synthesis and Antimicrobial Activity of Chlorocatechelin A. J Org Chem 2015; 80:6076-82. [DOI: 10.1021/acs.joc.5b00532] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shinji Kishimoto
- Department
of System Chemotherapy and Molecular Sciences, Division of Bioinformatics
and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Shinichi Nishimura
- Department
of System Chemotherapy and Molecular Sciences, Division of Bioinformatics
and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Masaki Hatano
- Institute of Microbial
Chemistry (BIKAKEN), Kamiosaki, Shinagawa-ku,
Tokyo 141-0021, Japan
| | - Masayuki Igarashi
- Institute of Microbial
Chemistry (BIKAKEN), Kamiosaki, Shinagawa-ku,
Tokyo 141-0021, Japan
| | - Hideaki Kakeya
- Department
of System Chemotherapy and Molecular Sciences, Division of Bioinformatics
and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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32
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Gao X, Ren Q, Choi S, Xu Z, Ye T. Total synthesis of the putative structure of the proposed Banyasin A. Front Chem 2015; 3:19. [PMID: 25853121 PMCID: PMC4362330 DOI: 10.3389/fchem.2015.00019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 03/02/2015] [Indexed: 11/13/2022] Open
Abstract
The first total synthesis of four possible isomers of a molecule possessing the configuration proposed for Banyasin A is described. The structure synthesized appears to be different from that of the natural product.
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Affiliation(s)
- Xuguang Gao
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Shenzhen, China
| | - Qi Ren
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Shenzhen, China
| | - Sun Choi
- National Leading Research Laboratory of Molecular Modeling and Drug Design, College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University Seoul, South Korea
| | - Zhengshuang Xu
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Shenzhen, China
| | - Tao Ye
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Shenzhen, China ; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hong Kong, China
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33
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Karlsson M, Durling MB, Choi J, Kosawang C, Lackner G, Tzelepis GD, Nygren K, Dubey MK, Kamou N, Levasseur A, Zapparata A, Wang J, Amby DB, Jensen B, Sarrocco S, Panteris E, Lagopodi AL, Pöggeler S, Vannacci G, Collinge DB, Hoffmeister D, Henrissat B, Lee YH, Jensen DF. Insights on the evolution of mycoparasitism from the genome of Clonostachys rosea. Genome Biol Evol 2015; 7:465-80. [PMID: 25575496 PMCID: PMC4350171 DOI: 10.1093/gbe/evu292] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2014] [Indexed: 11/14/2022] Open
Abstract
Clonostachys rosea is a mycoparasitic fungus that can control several important plant diseases. Here, we report on the genome sequencing of C. rosea and a comparative genome analysis, in order to resolve the phylogenetic placement of C. rosea and to study the evolution of mycoparasitism as a fungal lifestyle. The genome of C. rosea is estimated to 58.3 Mb, and contains 14,268 predicted genes. A phylogenomic analysis shows that C. rosea clusters as sister taxon to plant pathogenic Fusarium species, with mycoparasitic/saprotrophic Trichoderma species in an ancestral position. A comparative analysis of gene family evolution reveals several distinct differences between the included mycoparasites. Clonostachys rosea contains significantly more ATP-binding cassette (ABC) transporters, polyketide synthases, cytochrome P450 monooxygenases, pectin lyases, glucose-methanol-choline oxidoreductases, and lytic polysaccharide monooxygenases compared with other fungi in the Hypocreales. Interestingly, the increase of ABC transporter gene number in C. rosea is associated with phylogenetic subgroups B (multidrug resistance proteins) and G (pleiotropic drug resistance transporters), whereas an increase in subgroup C (multidrug resistance-associated proteins) is evident in Trichoderma virens. In contrast with mycoparasitic Trichoderma species, C. rosea contains very few chitinases. Expression of six group B and group G ABC transporter genes was induced in C. rosea during exposure to the Fusarium mycotoxin zearalenone, the fungicide Boscalid or metabolites from the biocontrol bacterium Pseudomonas chlororaphis. The data suggest that tolerance toward secondary metabolites is a prominent feature in the biology of C. rosea.
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Affiliation(s)
- Magnus Karlsson
- Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | | | - Jaeyoung Choi
- Department of Agricultural Biotechnology, Center for Fungal Pathogenesis, Seoul National University, Seoul, Korea
| | - Chatchai Kosawang
- Department of Plant and Environmental Sciences and Copenhagen Plant Science Centre, University of Copenhagen, Copenhagen, Denmark
| | - Gerald Lackner
- Department of Pharmaceutical Microbiology at the Hans-Knöll-Institute, Friedrich-Schiller-Universität, Jena, Germany
| | - Georgios D Tzelepis
- Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Kristiina Nygren
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Mukesh K Dubey
- Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Nathalie Kamou
- Plant Pathology Laboratory, School of Agriculture, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anthony Levasseur
- INRA and Aix-Marseille Université, Polytech Marseille, UMR1163 Biotechnologie des Champignons Filamenteux, Marseille, France
| | - Antonio Zapparata
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Jinhui Wang
- Department of Agricultural Sciences, University of Helsinki, Helsinki, Finland
| | - Daniel Buchvaldt Amby
- Department of Plant and Environmental Sciences and Copenhagen Plant Science Centre, University of Copenhagen, Copenhagen, Denmark
| | - Birgit Jensen
- Department of Plant and Environmental Sciences and Copenhagen Plant Science Centre, University of Copenhagen, Copenhagen, Denmark
| | - Sabrina Sarrocco
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Emmanuel Panteris
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia L Lagopodi
- Plant Pathology Laboratory, School of Agriculture, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stefanie Pöggeler
- Department of Genetics of Eukaryotic Microorganisms, Institute of Microbiology and Genetics, Georg-August University, Göttingen, Germany
| | - Giovanni Vannacci
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - David B Collinge
- Department of Plant and Environmental Sciences and Copenhagen Plant Science Centre, University of Copenhagen, Copenhagen, Denmark
| | - Dirk Hoffmeister
- Department of Pharmaceutical Microbiology at the Hans-Knöll-Institute, Friedrich-Schiller-Universität, Jena, Germany
| | - Bernard Henrissat
- Centre National de la Recherche Scientifique (CNRS), UMR7257, Université Aix-Marseille, Marseille, France, and Department of Biological Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Yong-Hwan Lee
- Department of Agricultural Biotechnology, Center for Fungal Pathogenesis, Seoul National University, Seoul, Korea
| | - Dan Funck Jensen
- Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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Grundler V, Gademann K. Direct arginine modification in native peptides and application to chemical probe development. ACS Med Chem Lett 2014; 5:1290-5. [PMID: 25516786 DOI: 10.1021/ml5003508] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 10/27/2014] [Indexed: 01/31/2023] Open
Abstract
An efficient method for the direct labeling of the Arg guanidinium group in native peptides is reported. This straightforward procedure allows modifying the arginine moiety in peptides with various reporter groups, such as fluorophores, biotin, etc., under mild conditions in an operationally simple procedure. The scope of this method tolerates various functionalized amino acids such as His, Ser, Trp, Tyr, Glu, etc., while the only limitations uncovered so far are restricted to cysteine and free amine residues. The utility of this late-stage diversification method was demonstrated in direct labeling of leuprolide, a clinically used drug, for distribution monitoring in Daphnia, and in labeling of microcystin, a cyanobacterial toxin.
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Affiliation(s)
- Verena Grundler
- Department of Chemistry, University of Basel, St. Johanns-Ring
19, 4056 Basel, Switzerland
| | - Karl Gademann
- Department of Chemistry, University of Basel, St. Johanns-Ring
19, 4056 Basel, Switzerland
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35
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Chen L, Zhou Y, Qu M, Zhao Y, Yang Q. Fully deacetylated chitooligosaccharides act as efficient glycoside hydrolase family 18 chitinase inhibitors. J Biol Chem 2014; 289:17932-40. [PMID: 24828498 DOI: 10.1074/jbc.m114.564534] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Small molecule inhibitors against chitinases have potential applications as pesticides, fungicides, and antiasthmatics. Here, we report that a series of fully deacetylated chitooligosaccharides (GlcN)2-7 can act as inhibitors against the insect chitinase OfChtI, the human chitinase HsCht, and the bacterial chitinases SmChiA and SmChiB with IC50 values at micromolar to millimolar levels. The injection of mixed (GlcN)2-7 into the fifth instar larvae of the insect Ostrinia furnacalis resulted in 85% of the larvae being arrested at the larval stage and death after 10 days, also suggesting that (GlcN)2-7 might inhibit OfChtI in vivo. Crystal structures of the catalytic domain of OfChtI (OfChtI-CAD) complexed with (GlcN)5,6 were obtained at resolutions of 2.0 Å. These structures, together with mutagenesis and thermodynamic analysis, suggested that the inhibition was strongly related to the interaction between the -1 GlcN residue of the inhibitor and the catalytic Glu(148) of the enzyme. Structure-based comparison showed that the fully deacetylated chitooligosaccharides mimic the substrate chitooligosaccharides by binding to the active cleft. This work first reports the inhibitory activity and proposed inhibitory mechanism of fully deacetylated chitooligosaccharides. Because the fully deacetylated chitooligosaccharides can be easily derived from chitin, one of the most abundant materials in nature, this work also provides a platform for developing eco-friendly inhibitors against chitinases.
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Affiliation(s)
- Lei Chen
- From the School of Life Science and Biotechnology, Dalian University of Technology, 2 Linggong Road, Dalian, Liaoning 116024, China
| | - Yong Zhou
- the School of Software, Dalian University of Technology, Dalian 116620, China, and
| | - Mingbo Qu
- From the School of Life Science and Biotechnology, Dalian University of Technology, 2 Linggong Road, Dalian, Liaoning 116024, China
| | - Yong Zhao
- the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Qing Yang
- From the School of Life Science and Biotechnology, Dalian University of Technology, 2 Linggong Road, Dalian, Liaoning 116024, China,
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36
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Hirose T. [Study on the discovery of novel chitinase inhibitors based on natural products]. YAKUGAKU ZASSHI 2014; 132:1001-10. [PMID: 23023416 DOI: 10.1248/yakushi.132.1001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chitin, the second most abundant polysaccharide in nature, is a constituent of fungal cell walls, the exoskeletons of crustaceans and insects and the microfilarial sheaths of parasitic nematodes. Chitin has, so far, not been found in mammals. Accumulation of chitin by organisms is modulated by chitin synthase-mediated biosynthesis and by chitinase-mediated hydrolytic degradation. Thus, chitinases are expected to be specific targets for antifungal, insecticidal and antiparasitic agents. Paradoxically, while chitin does not exist in mammals, human chitinase family members, such as acidic mammalian chitinase, have recently been described, and offer significant potential for the treatment of asthma and other related diseases in humans. This review covers the development of two chitinase inhibitors of natural origin, Argifin and Argadin, isolated from the cultured broth of microorganisms in our laboratory. In particular, the practical total synthesis of these natural products and discovery methods that generate only highly-active compounds using a kinetic target (chitinase)-guided synthesis approach (termed in situ click chemistry) are described.
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Affiliation(s)
- Tomoyasu Hirose
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo, Japan.
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37
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Observation of the controlled assembly of preclick components in the in situ click chemistry generation of a chitinase inhibitor. Proc Natl Acad Sci U S A 2013; 110:15892-7. [PMID: 24043811 DOI: 10.1073/pnas.1315049110] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The Huisgen cycloaddition of azides and alkynes, accelerated by target biomolecules, termed "in situ click chemistry," has been successfully exploited to discover highly potent enzyme inhibitors. We have previously reported a specific Serratia marcescens chitinase B (SmChiB)-templated syn-triazole inhibitor generated in situ from an azide-bearing inhibitor and an alkyne fragment. Several in situ click chemistry studies have been reported. Although some mechanistic evidence has been obtained, such as X-ray analysis of [protein]-["click ligand"] complexes, indicating that proteins act as both mold and template between unique pairs of azide and alkyne fragments, to date, observations have been based solely on "postclick" structural information. Here, we describe crystal structures of SmChiB complexed with an azide ligand and an O-allyl oxime fragment as a mimic of a click partner, revealing a mechanism for accelerating syn-triazole formation, which allows generation of its own distinct inhibitor. We have also performed density functional theory calculations based on the X-ray structure to explore the acceleration of the Huisgen cycloaddition by SmChiB. The density functional theory calculations reasonably support that SmChiB plays a role by the cage effect during the pretranslation and posttranslation states of selective syn-triazole click formation.
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Abstract
Biological control of phytopathogenic fungi and insects continues to inspire the research and development of environmentally friendly bioactive alternatives. Potentially lytic enzymes, chitinases can act as a biocontrol agent against agriculturally important fungi and insects. The cell wall in fungi and protective covers, i.e. cuticle in insects shares a key structural polymer, chitin, a β-1,4-linked N-acetylglucosamine polymer. Therefore, it is advantageous to develop a common biocontrol agent against both of these groups. As chitin is absent in plants and mammals, targeting its metabolism will signify an eco-friendly strategy for the control of agriculturally important fungi and insects but is innocuous to mammals, plants, beneficial insects and other organisms. In addition, development of chitinase transgenic plant varieties probably holds the most promising method for augmenting agricultural crop protection and productivity, when properly integrated into traditional systems. Recently, human proteins with chitinase activity and chitinase-like proteins were identified and established as biomarkers for human diseases. This review covers the recent advances of chitinases as a biocontrol agent and its various applications including preparation of medically important chitooligosaccharides, bioconversion of chitin as well as in implementing chitinases as diagnostic and prognostic markers for numerous diseases and the prospect of their future utilization.
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Affiliation(s)
- Anand Nagpure
- University School of Biotechnology, Guru Gobind Singh Indraprastha University , New Delhi , India
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39
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Wakasugi M, Gouda H, Hirose T, Sugawara A, Yamamoto T, Shiomi K, Sunazuka T, Ōmura S, Hirono S. Human acidic mammalian chitinase as a novel target for anti-asthma drug design using in silico screening. Bioorg Med Chem 2013; 21:3214-20. [PMID: 23623259 DOI: 10.1016/j.bmc.2013.03.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 03/12/2013] [Accepted: 03/13/2013] [Indexed: 11/29/2022]
Abstract
Human acidic mammalian chitinase (hAMCase) was recently shown to be involved in the development of asthma, suggesting a possible application for hAMCase inhibitors as novel therapeutic agents for asthma. We therefore initiated drug discovery research into hAMCase using a combination of in silico methodologies and a hAMCase assay system. We first selected 23 candidate hAMCase inhibitors from a database of four million compounds using a multistep screening system combining Tripos Topomer Search technology, a docking calculation and two-dimensional molecular similarity analysis. We then measured hAMCase inhibitory activity of the selected compounds and identified seven compounds with IC50 values ≤100 μM. A model describing the binding modes of these hit compounds to hAMCase was constructed, and we discuss the structure-activity relationships of the compounds we identified, suggested by the model and the actual inhibitory activities of the compounds.
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Affiliation(s)
- Masaki Wakasugi
- School of Pharmacy, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
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40
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Insect-Derived Chitinases. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2013; 136:19-50. [DOI: 10.1007/10_2013_207] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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41
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Hamid R, Khan MA, Ahmad M, Ahmad MM, Abdin MZ, Musarrat J, Javed S. Chitinases: An update. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2013; 5:21-9. [PMID: 23559820 PMCID: PMC3612335 DOI: 10.4103/0975-7406.106559] [Citation(s) in RCA: 225] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 03/16/2012] [Accepted: 05/21/2012] [Indexed: 11/04/2022] Open
Abstract
Chitin, the second most abundant polysaccharide in nature after cellulose, is found in the exoskeleton of insects, fungi, yeast, and algae, and in the internal structures of other vertebrates. Chitinases are enzymes that degrade chitin. Chitinases contribute to the generation of carbon and nitrogen in the ecosystem. Chitin and chitinolytic enzymes are gaining importance for their biotechnological applications, especially the chitinases exploited in agriculture fields to control pathogens. Chitinases have a use in human health care, especially in human diseases like asthma. Chitinases have wide-ranging applications including the preparation of pharmaceutically important chitooligosaccharides and N-acetyl D glucosamine, preparation of single-cell protein, isolation of protoplasts from fungi and yeast, control of pathogenic fungi, treatment of chitinous waste, mosquito control and morphogenesis, etc. In this review, the various types of chitinases and the chitinases found in different organisms such as bacteria, plants, fungi, and mammals are discussed.
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Affiliation(s)
- Rifat Hamid
- Department of Biochemistry, Faculty of Science, Jamia Hamdard, New Delhi, India
| | - Minhaj A. Khan
- Department of Biochemistry, Faculty of Science, Jamia Hamdard, New Delhi, India
| | - Mahboob Ahmad
- Department of Biochemistry, Faculty of Science, Jamia Hamdard, New Delhi, India
| | - Malik Mobeen Ahmad
- Department of Biotechnology, Faculty of Science, Jamia Hamdard, New Delhi, India
| | - Malik Zainul Abdin
- Department of Biotechnology, Faculty of Science, Jamia Hamdard, New Delhi, India
| | - Javed Musarrat
- Department of Microbiology, Faculty of Agricultural Sciences, AMU, Aligarh, India
| | - Saleem Javed
- Department of Biochemistry, Faculty of Science, Jamia Hamdard, New Delhi, India
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42
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Ubhayasekera W, Karlsson M. Bacterial and fungal chitinase chiJ orthologs evolve under different selective constraints following horizontal gene transfer. BMC Res Notes 2012; 5:581. [PMID: 23095575 PMCID: PMC3506478 DOI: 10.1186/1756-0500-5-581] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 10/22/2012] [Indexed: 12/02/2022] Open
Abstract
Background Certain bacteria from the genus Streptomyces are currently used as biological control agents against plant pathogenic fungi. Hydrolytic enzymes that degrade fungal cell wall components, such as chitinases, are suggested as one possible mechanism in biocontrol interactions. Adaptive evolution of chitinases are previously reported for plant chitinases involved in defence against fungal pathogens, and in fungal chitinases involved in fungal-fungal interactions. In this study we investigated the molecular evolution of chitinase chiJ in the bacterial genus Streptomyces. In addition, as chiJ orthologs are previously reported in certain fungal species as a result from horizontal gene transfer, we conducted a comparative study of differences in evolutionary patterns between bacterial and fungal taxa. Findings ChiJ contained three sites evolving under strong positive selection and four groups of co-evolving sites. Regions of high amino acid diversity were predicted to be surface-exposed and associated with coil regions that connect certain α-helices and β-strands in the family 18 chitinase TIM barrel structure, but not associated with the catalytic cleft. The comparative study with fungal ChiJ orthologs identified three regions that display signs of type 1 functional divergence, where unique adaptations in the bacterial and fungal taxa are driven by positive selection. Conclusions The identified surface-exposed regions of chitinase ChiJ where sequence diversification is driven by positive selection may putatively be related to functional divergence between bacterial and fungal orthologs. These results show that ChiJ orthologs have evolved under different selective constraints following the horizontal gene transfer event.
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Affiliation(s)
- Wimal Ubhayasekera
- Department of Medical Biochemistry and Microbiology ( IMBIM), Biomedical Center, Uppsala, Uppsala, Sweden
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43
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Identification of novel potential β-N-acetyl-D-hexosaminidase inhibitors by virtual screening, molecular dynamics simulation and MM-PBSA calculations. Int J Mol Sci 2012; 13:4545-4563. [PMID: 22605995 PMCID: PMC3344231 DOI: 10.3390/ijms13044545] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 03/13/2012] [Accepted: 03/26/2012] [Indexed: 11/16/2022] Open
Abstract
Chitinolytic β-N-acetyl-d-hexosaminidases, as a class of chitin hydrolysis enzyme in insects, are a potential species-specific target for developing environmentally-friendly pesticides. Until now, pesticides targeting chitinolytic β-N-acetyl-d-hexosaminidase have not been developed. This study demonstrates a combination of different theoretical methods for investigating the key structural features of this enzyme responsible for pesticide inhibition, thus allowing for the discovery of novel small molecule inhibitors. Firstly, based on the currently reported crystal structure of this protein (OfHex1.pdb), we conducted a pre-screening of a drug-like compound database with 8 × 106 compounds by using the expanded pesticide-likeness criteria, followed by docking-based screening, obtaining 5 top-ranked compounds with favorable docking conformation into OfHex1. Secondly, molecular docking and molecular dynamics simulations are performed for the five complexes and demonstrate that one main hydrophobic pocket formed by residues Trp424, Trp448 and Trp524, which is significant for stabilization of the ligand–receptor complex, and key residues Asp477 and Trp490, are respectively responsible for forming hydrogen-bonding and π–π stacking interactions with the ligands. Finally, the molecular mechanics Poisson–Boltzmann surface area (MM-PBSA) analysis indicates that van der Waals interactions are the main driving force for the inhibitor binding that agrees with the fact that the binding pocket of OfHex1 is mainly composed of hydrophobic residues. These results suggest that screening the ZINC database can maximize the identification of potential OfHex1 inhibitors and the computational protocol will be valuable for screening potential inhibitors of the binding mode, which is useful for the future rational design of novel, potent OfHex1-specific pesticides.
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44
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Fungal chitinases: diversity, mechanistic properties and biotechnological potential. Appl Microbiol Biotechnol 2011; 93:533-43. [PMID: 22134638 PMCID: PMC3257436 DOI: 10.1007/s00253-011-3723-3] [Citation(s) in RCA: 170] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 10/27/2011] [Accepted: 11/08/2011] [Indexed: 12/15/2022]
Abstract
Chitin derivatives, chitosan and substituted chito-oligosaccharides have a wide spectrum of applications ranging from medicine to cosmetics and dietary supplements. With advancing knowledge about the substrate-binding properties of chitinases, enzyme-based production of these biotechnologically relevant sugars from biological resources is becoming increasingly interesting. Fungi have high numbers of glycoside hydrolase family 18 chitinases with different substrate-binding site architectures. As presented in this review, the large diversity of fungal chitinases is an interesting starting point for protein engineering. In this review, recent data about the architecture of the substrate-binding clefts of fungal chitinases, in connection with their hydrolytic and transglycolytic abilities, and the development of chitinase inhibitors are summarized. Furthermore, the biological functions of chitinases, chitin and chitosan utilization by fungi, and the effects of these aspects on biotechnological applications, including protein overexpression and autolysis during industrial processes, are discussed in this review.
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45
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Solution-phase total synthesis of the hydrophilic natural product argifin using 3,4,5-tris(octadecyloxy)benzyl tag. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.073] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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47
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Pantoom S, Vetter IR, Prinz H, Suginta W. Potent family-18 chitinase inhibitors: x-ray structures, affinities, and binding mechanisms. J Biol Chem 2011; 286:24312-23. [PMID: 21531720 PMCID: PMC3129211 DOI: 10.1074/jbc.m110.183376] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 03/20/2011] [Indexed: 11/06/2022] Open
Abstract
Six novel inhibitors of Vibrio harveyi chitinase A (VhChiA), a family-18 chitinase homolog, were identified by in vitro screening of a library of pharmacologically active compounds. Unlike the previously identified inhibitors that mimicked the reaction intermediates, crystallographic evidence from 14 VhChiA-inhibitor complexes showed that all of the inhibitor molecules occupied the outer part of the substrate-binding cleft at two hydrophobic areas. The interactions at the aglycone location are well defined and tightly associated with Trp-397 and Trp-275, whereas the interactions at the glycone location are patchy, indicating lower affinity and a loose interaction with two consensus residues, Trp-168 and Val-205. When Trp-275 was substituted with glycine (W275G), the binding affinity toward all of the inhibitors dramatically decreased, and in most structures two inhibitor molecules were found to stack against Trp-397 at the aglycone site. Such results indicate that hydrophobic interactions are important for binding of the newly identified inhibitors by the chitinase. X-ray data and isothermal microcalorimetry showed that the inhibitors occupied the active site of VhChiA in three different binding modes, including single-site binding, independent two-site binding, and sequential two-site binding. The inhibitory effect of dequalinium in the low nanomolar range makes this compound an extremely attractive lead compound for plausible development of therapeutics against human diseases involving chitinase-mediated pathologies.
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Affiliation(s)
- Supansa Pantoom
- From the Biochemistry-Electrochemistry Research Unit, Schools of Chemistry and Biochemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand and
| | - Ingrid R. Vetter
- the Max Planck Institute for Molecular Physiology, 44227 Dortmund, Germany
| | - Heino Prinz
- the Max Planck Institute for Molecular Physiology, 44227 Dortmund, Germany
| | - Wipa Suginta
- From the Biochemistry-Electrochemistry Research Unit, Schools of Chemistry and Biochemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand and
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48
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Schüttelkopf AW, Andersen OA, Rao FV, Allwood M, Rush CL, Eggleston IM, van Aalten DMF. Bisdionin C-a rationally designed, submicromolar inhibitor of family 18 chitinases. ACS Med Chem Lett 2011; 2:428-32. [PMID: 24900325 DOI: 10.1021/ml200008b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 03/11/2011] [Indexed: 11/29/2022] Open
Abstract
Chitinases of the GH18 family play important roles in a variety of pathogenic organisms and have also been shown to be involved in human asthma progression, making these enzymes potential drug targets. While a number of potent GH18 chitinase inhibitors have been described, in general, these compounds suffer from limited synthetic accessibility or unfavorable medicinal-chemical properties, making them poor starting points for the development of chitinase-targeted drugs. Exploiting available structural data, we have rationally designed bisdionin C, a submicromolar inhibitor of GH18 enzymes, that possesses desirable druglike properties and tractable chemical synthesis. A crystallographic structure of a chitinase-bisdionin C complex shows the two aromatic systems of the ligand interacting with two conserved tryptophan residues exposed in the active site cleft of the enzyme, while at the same time forming extensive hydrogen-bonding interactions with the catalytic machinery. The observed mode of binding, together with inhibition data, suggests that bisdionin C presents an attractive starting point for the development of specific inhibitors of bacterial-type, but not plant-type, GH 18 chitinases.
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Affiliation(s)
- Alexander W. Schüttelkopf
- Division of Molecular Microbiology and ‡Division of Biological Chemistry and Molecular Microbiology, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland
| | - Ole A. Andersen
- Division of Molecular Microbiology and ‡Division of Biological Chemistry and Molecular Microbiology, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland
| | - Francesco V. Rao
- Division of Molecular Microbiology and ‡Division of Biological Chemistry and Molecular Microbiology, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland
| | - Matthew Allwood
- Division of Molecular Microbiology and ‡Division of Biological Chemistry and Molecular Microbiology, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland
| | - Christina L. Rush
- Division of Molecular Microbiology and ‡Division of Biological Chemistry and Molecular Microbiology, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland
| | - Ian M. Eggleston
- Division of Molecular Microbiology and ‡Division of Biological Chemistry and Molecular Microbiology, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland
| | - Daan M. F. van Aalten
- Division of Molecular Microbiology and ‡Division of Biological Chemistry and Molecular Microbiology, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland
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49
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Yang J, Gan Z, Lou Z, Tao N, Mi Q, Liang L, Sun Y, Guo Y, Huang X, Zou C, Rao Z, Meng Z, Zhang KQ. Crystal structure and mutagenesis analysis of chitinase CrChi1 from the nematophagous fungus Clonostachys rosea in complex with the inhibitor caffeine. MICROBIOLOGY-SGM 2010; 156:3566-3574. [PMID: 20829286 DOI: 10.1099/mic.0.043653-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Chitinases are a group of enzymes capable of hydrolysing the β-(1,4)-glycosidic bonds of chitin, an essential component of the fungal cell wall, the shells of nematode eggs, and arthropod exoskeletons. Chitinases from pathogenic fungi have been shown to be putative virulence factors, and can play important roles in infecting hosts. However, very limited information is available on the structure of chitinases from nematophagous fungi. Here, we present the 1.8 Å resolution of the first structure of a Family 18 chitinase from this group of fungi, that of Clonostachys rosea CrChi1, and the 1.6 Å resolution of CrChi1 in complex with a potent inhibitor, caffeine. Like other Family 18 chitinases, CrChi1 has the DXDXE motif at the end of strand β5, with Glu174 as the catalytic residue in the middle of the open end of the (β/α)(8) barrel. Two caffeine molecules were shown to bind to CrChi1 in subsites -1 to +1 in the substrate-binding domain. Moreover, site-directed mutagenesis of the amino acid residues forming hydrogen bonds with caffeine molecules suggests that these residues are important for substrate binding and the hydrolytic process. Our results provide a foundation for elucidating the catalytic mechanism of chitinases from nematophagous fungi and for improving the pathogenicity of nematophagous fungi against agricultural pest hosts.
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Affiliation(s)
- Jinkui Yang
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, PR China
| | - Zhongwei Gan
- Middle School Attached to Yunnan Normal University, Kunming 650106, PR China.,Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, PR China
| | - Zhiyong Lou
- Tsinghua-Nankai-IBP Joint Research Group for Structural Biology, Tsinghua University, Beijing 100084, PR China
| | - Nan Tao
- Institute of Biotechnology, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650223, PR China.,Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, PR China
| | - Qili Mi
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, PR China
| | - Lianming Liang
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, PR China
| | - Yuna Sun
- Tsinghua-Nankai-IBP Joint Research Group for Structural Biology, Tsinghua University, Beijing 100084, PR China
| | - Yu Guo
- Tsinghua-Nankai-IBP Joint Research Group for Structural Biology, Tsinghua University, Beijing 100084, PR China
| | - Xiaowei Huang
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, PR China
| | - Chenggan Zou
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, PR China
| | - Zihe Rao
- Tsinghua-Nankai-IBP Joint Research Group for Structural Biology, Tsinghua University, Beijing 100084, PR China
| | - Zhaohui Meng
- Laboratory of Molecular Cardiology, Department of Cardiology, The First Affiliated Hospital of Kunming Medical College, Kunming 650032, PR China.,Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, PR China
| | - Ke-Qin Zhang
- Laboratory for Conservation and Utilization of Bio-Resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, PR China
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50
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Gouda H, Sunazuka T, Hirose T, Iguchi K, Yamaotsu N, Sugawara A, Noguchi Y, Saito Y, Yamamoto T, Watanabe T, Shiomi K, Ōmura S, Hirono S. NMR spectroscopy and computational analysis of interaction between Serratia marcescens chitinase B and a dipeptide derived from natural-product cyclopentapeptide chitinase inhibitor argifin. Bioorg Med Chem 2010; 18:5835-44. [DOI: 10.1016/j.bmc.2010.06.093] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Revised: 06/25/2010] [Accepted: 06/29/2010] [Indexed: 10/19/2022]
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