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Saini I, Joshi J, Kaur S. Leishmania vaccine development: A comprehensive review. Cell Immunol 2024; 399-400:104826. [PMID: 38669897 DOI: 10.1016/j.cellimm.2024.104826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/18/2024] [Accepted: 04/21/2024] [Indexed: 04/28/2024]
Abstract
Infectious diseases like leishmaniasis, malaria, HIV, tuberculosis, leprosy and filariasis are responsible for an immense burden on public health systems. Among these, leishmaniasis is under the category I diseases as it is selected by WHO (World Health Organization) on the ground of diversity and complexity. High cost, resistance and toxic effects of Leishmania traditional drugs entail identification and development of therapeutic alternative. Since the natural infection elicits robust immunity, consistence efforts are going on to develop a successful vaccine. Clinical trials have been conducted on vaccines like Leish-F1, F2, and F3 formulated using specific Leishmania antigen epitopes. Current strategies utilize individual or combined antigens from the parasite or its insect vector's salivary gland extract, with or without adjuvant formulation for enhanced efficacy. Promising animal data supports multiple vaccine candidates (Lmcen-/-, LmexCen-/-), with some already in or heading for clinical trials. The crucial challenge in Leishmania vaccine development is to translate the research knowledge into affordable and accessible control tools that refines the outcome for those who are susceptible to infection. This review focuses on recent findings in Leishmania vaccines and highlights difficulties facing vaccine development and implementation.
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Affiliation(s)
- Isha Saini
- Parasitology Laboratory, Department of Zoology, Panjab University, Chandigarh, India
| | - Jyoti Joshi
- Goswami Ganesh Dutta Sanatan Dharma College, Sector-32C, Chandigarh, India
| | - Sukhbir Kaur
- Parasitology Laboratory, Department of Zoology, Panjab University, Chandigarh, India.
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Abdelkrim YZ, Harigua-Souiai E, Bassoumi-Jamoussi I, Barhoumi M, Banroques J, Essafi-Benkhadir K, Nilges M, Blondel A, Tanner NK, Guizani I. Enzymatic and Molecular Characterization of Anti- Leishmania Molecules That Differently Target Leishmania and Mammalian eIF4A Proteins, LieIF4A and eIF4A Mus. Molecules 2022; 27:molecules27185890. [PMID: 36144626 PMCID: PMC9502374 DOI: 10.3390/molecules27185890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/22/2022] [Accepted: 09/02/2022] [Indexed: 02/05/2023]
Abstract
Previous investigations of the Leishmania infantum eIF4A-like protein (LieIF4A) as a potential drug target delivered cholestanol derivatives inhibitors. Here, we investigated the mode of action of cholesterol derivatives as a novel scaffold structure of LieIF4A inhibitors on the RNA-dependent ATPase activity of LieIF4A and its mammalian ortholog (eIF4AI). We compared their biochemical effects on RNA-dependent ATPase activities of both proteins and investigated if rocaglamide, a known inhibitor of eIF4A, could affect LieIF4A as well. Kinetic measurements were conducted at different concentrations of ATP, of the compound and in the presence of saturating whole yeast RNA concentrations. Kinetic analyses showed different ATP binding affinities for the two enzymes as well as different sensitivities to 7-α-aminocholesterol and rocaglamide. The 7-α-aminocholesterol inhibited LieIF4A with a higher binding affinity relative to cholestanol analogs. Cholesterol, another tested sterol, had no effect on the ATPase activity of LieIF4A or eIF4AI. The 7-α-aminocholesterol demonstrated an anti-Leishmania activity on L. infantum promastigotes. Additionally, docking simulations explained the importance of the double bond between C5 and C6 in 7-α-aminocholesterol and the amino group in the C7 position. In conclusion, Leishmania and mammalian eIF4A proteins appeared to interact differently with effectors, thus making LieIF4A a potential drug against leishmaniases.
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Affiliation(s)
- Yosser Zina Abdelkrim
- Laboratory of Molecular Epidemiology and Experimental Pathology (LR11IPT04/LR16IPT04)/Laboratory of Epidemiology and Ecology of Parasites, Institut Pasteur de Tunis—University Tunis El Manar, Tunis 1002, Tunisia
- Université de Paris Cité & CNRS, Expression Génétique Microbienne, Institut de Biologie Physico-Chimique, 13 Rue Pierre et Marie Curie, F-75005 Paris, France
- Correspondence: (Y.Z.A.); (I.G.)
| | - Emna Harigua-Souiai
- Laboratory of Molecular Epidemiology and Experimental Pathology (LR11IPT04/LR16IPT04)/Laboratory of Epidemiology and Ecology of Parasites, Institut Pasteur de Tunis—University Tunis El Manar, Tunis 1002, Tunisia
| | - Imen Bassoumi-Jamoussi
- Laboratory of Molecular Epidemiology and Experimental Pathology (LR11IPT04/LR16IPT04)/Laboratory of Epidemiology and Ecology of Parasites, Institut Pasteur de Tunis—University Tunis El Manar, Tunis 1002, Tunisia
| | - Mourad Barhoumi
- Laboratory of Molecular Epidemiology and Experimental Pathology (LR11IPT04/LR16IPT04)/Laboratory of Epidemiology and Ecology of Parasites, Institut Pasteur de Tunis—University Tunis El Manar, Tunis 1002, Tunisia
| | - Josette Banroques
- Université de Paris Cité & CNRS, Expression Génétique Microbienne, Institut de Biologie Physico-Chimique, 13 Rue Pierre et Marie Curie, F-75005 Paris, France
- Paris Sciences and Lettres Research University, Institut de Biologie Physico-Chimique, 13 Rue Pierre et Marie Curie, F-75005 Paris, France
| | - Khadija Essafi-Benkhadir
- Laboratory of Molecular Epidemiology and Experimental Pathology (LR11IPT04/LR16IPT04)/Laboratory of Epidemiology and Ecology of Parasites, Institut Pasteur de Tunis—University Tunis El Manar, Tunis 1002, Tunisia
| | - Michael Nilges
- Structural Bioinformatics Unit, Institut Pasteur, F-75015 Paris, France
| | - Arnaud Blondel
- Structural Bioinformatics Unit, Institut Pasteur, F-75015 Paris, France
| | - N. Kyle Tanner
- Université de Paris Cité & CNRS, Expression Génétique Microbienne, Institut de Biologie Physico-Chimique, 13 Rue Pierre et Marie Curie, F-75005 Paris, France
- Paris Sciences and Lettres Research University, Institut de Biologie Physico-Chimique, 13 Rue Pierre et Marie Curie, F-75005 Paris, France
| | - Ikram Guizani
- Laboratory of Molecular Epidemiology and Experimental Pathology (LR11IPT04/LR16IPT04)/Laboratory of Epidemiology and Ecology of Parasites, Institut Pasteur de Tunis—University Tunis El Manar, Tunis 1002, Tunisia
- Correspondence: (Y.Z.A.); (I.G.)
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Tandon R, Reyaz E, Roshanara, Jadhav M, Gandhi M, Dey R, Salotra P, Nakhasi HL, Selvapandiyan A. Identification of protein biomarkers of attenuation and immunogenicity of centrin or p27 gene deleted live vaccine candidates of Leishmania against visceral leishmaniasis. Parasitol Int 2022; 92:102661. [PMID: 36049661 DOI: 10.1016/j.parint.2022.102661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 07/08/2022] [Accepted: 08/23/2022] [Indexed: 10/15/2022]
Abstract
Currently, no licensed vaccine is available for human visceral leishmaniasis (VL), a fatal disease caused by the protozoan parasite Leishmania donovani. Two of our live attenuated L. donovani vaccine candidates, either deleted for Centrin1 (LdCen1-/-) or p27 gene (Ldp27-/-), that display reduced growth in macrophages were studied to be safe, immunogenic and protective against VL in various animal models. This report involves the identification of differentially expressed proteins, their related pathways and its underlying mechanism in the intracellular stage of these parasites, using Isobaric Tags for Relative and Absolute Quantitation (iTRAQ) methods. Out of 50-60 proteins, found to be differentially expressed in these mutant parasites, 36 were found to be common in both the parasites. Such proteins mainly belong to the functional categories viz. metabolic enzymes, chaperones and stress proteins, proteins involved in translation, processing and transport and proteins involved in nucleic acid processing. Proteins known to be host protective, like Glyceraldehyde-3-phosphate dehydrogenase (GAPDH), cytochrome c, calreticulin and those responsible for inducing immune response, namely tubulins, DEAD box RNA helicases, HSP70 and tryparedoxin, have been detected to be modulated in these parasites. Such proteins could be predicted as biomarkers, with further scope of study for their role in growth attenuation. SIGNIFICANCE: This study aims at predicting proteomic biomarkers of Leishmania parasite growth attenuation, that have immunomodulatory role in the disease leishmaniasis. Advanced studies could be helpful in establishing the role of these identified proteins in parasitic virulence and to predict the host interaction at molecular level. Also, these proteins could be exploited as attenuation markers during the development of genetically modified live attenuated parasites as vaccine candidates. These could be cross validated in varied species of Leishmania and other tyrpanosomatids for similar response towards identifying them as universal biomarkers of attenuation.
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Affiliation(s)
- Rati Tandon
- JH-Department of Molecular Medicine, School of Interdisciplinary Sciences and Technology, Jamia Hamdard, New Delhi 110062, India
| | - Enam Reyaz
- JH-Department of Molecular Medicine, School of Interdisciplinary Sciences and Technology, Jamia Hamdard, New Delhi 110062, India
| | - Roshanara
- JH-Department of Molecular Medicine, School of Interdisciplinary Sciences and Technology, Jamia Hamdard, New Delhi 110062, India
| | - Manali Jadhav
- Centre for Research in Nanotechnology & Science, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Mayuri Gandhi
- Centre for Research in Nanotechnology & Science, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ranadhir Dey
- Division of Emerging and Transfusion Transmitted Diseases, Center for Biologics Evaluation and Research (CBER), Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Poonam Salotra
- National Institute of Pathology (ICMR), Safdarjung Hospital Campus, New Delhi 110029, India
| | - Hira L Nakhasi
- Division of Emerging and Transfusion Transmitted Diseases, Center for Biologics Evaluation and Research (CBER), Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Angamuthu Selvapandiyan
- JH-Department of Molecular Medicine, School of Interdisciplinary Sciences and Technology, Jamia Hamdard, New Delhi 110062, India.
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Ahmadpour NB, Dalimi A, Pirestani M, Sadraei J. A Novel Chimeric Antigen as a Vaccine Candidate against Leishmania major: In silico Analysis. Iran J Parasitol 2021; 16:186-198. [PMID: 34557233 PMCID: PMC8418661 DOI: 10.18502/ijpa.v16i2.6267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 09/25/2020] [Indexed: 11/29/2022]
Abstract
Background: Leishmania is a mandatory intracellular pathogen and causing neglected disease. Hence, protection against leishmaniasis by a development vaccine is an important subject. This study aimed to design a poly-epitope vaccine for cutaneous leishmaniasis. Methods: The present study was conducted in the Parasitology Department of Tarbiat Modares University, Tehran, Iran during 2017–2019. Several bioinformatics methods at online servers were used for prediction of different aspects of poly-epitope, including, physico-chemical attributes, allergenicity, antigenicity, secondary and tertiary structures, B-cell, T-cell and MHC (I, II) potential epitopes of LACK, LEIF, GP63 and SMT antigens of L. major. Results: After designing the construct (GLSL), the outputs of PTM sites demonstrated that the poly-epitope had 57 potential sites for phosphorylation. Furthermore, the secondary of GLSL structure includes 59.42%, 20.94% and 19.63% for random coil, extended strand and alpha-helix, respectively. The GLSL is an immunogenic protein with an acceptable antigenicity (0.8410) and non-allergen. Afterward, 20 potential epitopes of LACK, LEIF, GP63 and SMT antigens were linked by a flexible linker (SAPGTP), then was synthesized, and sub-cloned in pLEXY– neo2. The results were confirmed the expression of 38.7 kDa poly-epitope in secretory and cytosolic sites, separately. Conclusion: A good expression in the L. tarentulae and confirmation of the GLSL poly-epitope could be a basis for developing a vaccine candidate against leishmaniasis that should be confirmed via experimental tests in BALB/c mice.
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Affiliation(s)
| | - Abdolhossein Dalimi
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Majid Pirestani
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Javid Sadraei
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Bordbar A, Amanlou M, Pooshang Bagheri K, Ready PD, Ebrahimi S, Shahbaz Mohammadi H, Ghafari SM, Parvizi P. Cloning, high-level gene expression and bioinformatics analysis of SP15 and LeIF from Leishmania major and Iranian Phlebotomus papatasi saliva as single and novel fusion proteins: a potential vaccine candidate against leishmaniasis. Trans R Soc Trop Med Hyg 2021; 115:699-713. [PMID: 33155034 DOI: 10.1093/trstmh/traa119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 08/09/2020] [Accepted: 10/16/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Early exacerbation of cutaneous leishmaniasis is mainly affected by both the salivary and Leishmania parasite components. Little is known of the vaccine combination made by immunogenic proteins of sandfly saliva (SP15) with Leishmania parasites (LeIF) as a single prophylactic vaccine, namely SaLeish. Also, there are no data available to determine the species-specific sequence of SP15 isolated from the Iranian Phlebotomus papatasi. METHODS Integrated bioinformatics and genetic engineering methods were employed to design, optimize and obtain a vector-parasite-based vaccine formulation in a whole-length fusion form of LeIF-SP15 against leishmaniasis. Holistic gene optimization was initially performed to obtain a high yield of pure 'whole-SaLeish' expression using bioinformatics analyses. Genomic and salivary gland RNAs of wild-caught P. papatasi were extracted and their complementary DNA was amplified and cloned into pJET vector. RESULTS The new chimeric protein of whole-SaLeish and randomly selected transcripts of native PpIRSP15 (GenBank accession nos. MT025054 and MN938854, MN938855 and MN938856) were successfully expressed, purified and validated by immunoblotting assay. Furthermore, despite the single amino acid polymorphisms of PpIRSP15 found at positions Y23 and E73 within the population of wild Iranian sandflies, antigenicity and conservancy of PpIRSP15 epitopes remained constant to activate T cells. CONCLUSIONS The SaLeish vaccine strategy takes advantage of a plethora of vector-parasite immunogenic proteins with potential protective efficacy to stimulate both the innate and specific cellular immune responses against Leishmania parasites.
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Affiliation(s)
- Ali Bordbar
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran, Iran.,Venom and Biotherapeutics Molecules Laboratory, Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Massoud Amanlou
- Department of Medicinal Chemistry, Faculty of Pharmacy and Drug Design and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Kamran Pooshang Bagheri
- Venom and Biotherapeutics Molecules Laboratory, Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Paul Donald Ready
- Department of Disease Control, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Sahar Ebrahimi
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran, Iran
| | - Hamid Shahbaz Mohammadi
- Department of Biochemistry, Genetics and Metabolism Research Group, Pasteur Institute of Iran, Tehran, Iran
| | - Seyedeh Maryam Ghafari
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran, Iran
| | - Parviz Parvizi
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran, Iran
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Bordbar A, Parvizi P. Species diversity and spatial distribution of CL/VL vectors: assessing bioclimatic effect on expression plasticity of genes possessing vaccine properties isolated from wild-collected sand flies in endemic areas of Iran. BMC Infect Dis 2021; 21:455. [PMID: 34011276 PMCID: PMC8136226 DOI: 10.1186/s12879-021-06129-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 04/29/2021] [Indexed: 11/23/2022] Open
Abstract
Background Leishmaniasis is one of the ten most important neglected tropical diseases worldwide. Understanding the distribution of vectors of visceral and cutaneous leishmaniasis (VL/CL) is one of the significant strategic frameworks to control leishmaniasis. In this study, the extent of the bioclimatic variability was investigated to recognize a rigorous cartographic of the spatial distribution of VL/CL vectors as risk-maps using ArcGIS modeling system. Moreover, the effect of bioclimatic diversity on the fold change expression of genes possessing vaccine traits (SP15 and LeIF) was evaluated in each bioclimatic region using real-time PCR analysis. Methods The Inverse Distance Weighting interpolation method was used to obtain accurate geography map in closely-related distances. Bioclimatic indices were computed and vectors spatial distribution was analyzed in ArcGIS10.3.1 system. Species biodiversity was calculated based on Shannon diversity index using Rv.3.5.3. Expression fold change of SP15 and LeIF genes was evaluated using cDNA synthesis and RT-qPCR analysis. Results Frequency of Phlebotomus papatasi was predominant in plains areas of Mountainous bioclimate covering the CL hot spots. Mediterranean region was recognized as an important bioclimate harboring prevalent patterns of VL vectors. Semi-arid bioclimate was identified as a major contributing factor to up-regulate salivary-SP15 gene expression (P = 0.0050, P < 0.05). Also, Mediterranean bioclimate had considerable effect on up-regulation of Leishmania-LeIF gene in gravid and semi-gravid P. papatasi population (P = 0.0109, P < 0.05). Conclusions The diversity and spatial distribution of CL/VL vectors associated with bioclimatic regionalization obtained in our research provide epidemiological risk maps and establish more effectively control measures against leishmaniasis. Oscillations in gene expression indicate that each gene has its own features, which are profoundly affected by bioclimatic characteristics and physiological status of sand flies. Given the efficacy of species-specific antigens for vaccine production, it is essential to consider bioclimatic factors that have a fundamental role in affecting the regulatory regions of environmentally responsive loci for genes used in vaccine design. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-021-06129-0.
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Affiliation(s)
- Ali Bordbar
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, 69 Pasteur Ave, Tehran, Iran
| | - Parviz Parvizi
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, 69 Pasteur Ave, Tehran, Iran.
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Gioseffi A, Hamerly T, Van K, Zhang N, Dinglasan RR, Yates PA, Kima PE. Leishmania-infected macrophages release extracellular vesicles that can promote lesion development. Life Sci Alliance 2020; 3:3/12/e202000742. [PMID: 33122174 PMCID: PMC7652379 DOI: 10.26508/lsa.202000742] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 10/06/2020] [Accepted: 10/08/2020] [Indexed: 12/12/2022] Open
Abstract
Macrophages infected with Leishmania donovani release extracellular vesicles that are composed of parasite and host-derived molecules that have the potential to induce vascular changes in tissues. Leishmania donovani infection of macrophages results in quantitative and qualitative changes in the protein profile of extracellular vesicles (EVs) released by the infected host cells. We confirmed mass spectrometry results orthogonally by performing Western blots for several Leishmania-infected macrophage-enriched EVs (LieEVs) molecules. Several host cell proteins in LieEVs have been implicated in promoting vascular changes in other systems. We also identified 59 parasite-derived proteins in LieEVs, including a putative L. donovani homolog of mammalian vasohibins (LdVash), which in mammals promotes angiogenesis. We developed a transgenic parasite that expressed an endogenously tagged LdVash/mNeonGreen (mNG) and confirmed that LdVash/mNG is indeed expressed in infected macrophages and in LieEVs. We further observed that LieEVs induce endothelial cells to release angiogenesis promoting mediators including IL-8, G-CSF/CSF-3, and VEGF-A. In addition, LieEVs induce epithelial cell migration and tube formation by endothelial cells in surrogate angiogenesis assays. Taken together, these studies show that Leishmania infection alters the composition of EVs from infected cells and suggest that LieEVs may play a role in the promotion of vascularization of Leishmania infections.
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Affiliation(s)
- Anna Gioseffi
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, USA
| | - Tim Hamerly
- Emerging Pathogens Institute and Department of Infectious Diseases and Immunology, University of Florida, Gainesville, FL, USA
| | - Kha Van
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, USA
| | - Naixin Zhang
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, USA
| | - Rhoel R Dinglasan
- Emerging Pathogens Institute and Department of Infectious Diseases and Immunology, University of Florida, Gainesville, FL, USA
| | - Phillip A Yates
- Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, OR, USA
| | - Peter E Kima
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, USA
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Kamjula V, Kanneganti A, Metla R, Nidamanuri K, Idupulapati S, Runthala A. Decoding the vital segments in human ATP-dependent RNA helicase. Bioinformation 2020; 16:160-170. [PMID: 32405168 PMCID: PMC7196165 DOI: 10.6026/97320630016160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 02/20/2020] [Indexed: 12/28/2022] Open
Abstract
An analysis of the ATP-dependent RNA helicase using known functionally close analogs helps disclose the structural and functional information of the enzyme. The enzyme plays several interlinked biological functions and there is an urgent need to interpret its key active-site residues to infer function and establish role. The human protein q96c10.1 is annotated using tools such as interpro, go and cdd. The physicochemical properties are estimated using the tool protparam. We describe the enzyme protein model developed using modeller to identify active site residues. We used consurf to estimate the structural conservation and is evolutionary relationship is inferred using known close sequence homologs. The active site is predicted using castp and its topological flexibility is estimated through cabs-flex. The protein is annotated as a hydrolase using available data and ddx58 is found as its top-ranked interacting protein partner. We show that about 124 residues are found to be highly conserved among 259 homologs, clustered in 7 clades with the active-site showing low sequence conservation. It is further shown that only 9 loci among the 42 active-site residues are conserved with limited structural fluctuation from the wild type structure. Thus, we document various useful information linked to function, sequence similarity and phylogeny of the enzyme for annotation as potential helicase as designated by uniprot. Data shows limited degree of conserved sequence segments with topological flexibility unlike in other subfamily members of the protein.
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Affiliation(s)
- Vandana Kamjula
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
| | - Ananya Kanneganti
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
| | - Rohan Metla
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
| | - Kusuma Nidamanuri
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
| | - Sudarshan Idupulapati
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
| | - Ashish Runthala
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
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Abdelkrim YZ, Harigua-Souiai E, Barhoumi M, Banroques J, Blondel A, Guizani I, Tanner NK. The steroid derivative 6-aminocholestanol inhibits the DEAD-box helicase eIF4A (LieIF4A) from the Trypanosomatid parasite Leishmania by perturbing the RNA and ATP binding sites. Mol Biochem Parasitol 2018; 226:9-19. [PMID: 30365976 DOI: 10.1016/j.molbiopara.2018.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/01/2018] [Accepted: 10/19/2018] [Indexed: 11/20/2022]
Abstract
The antifungal agent 6-aminocholestanol targets the production of ergosterol, which is the principle sterol in many fungi and protozoans; ergosterol serves many of the same roles as cholesterol in animals. We found that it also is an effective inhibitor of the translation-initiation factor eIF4AI from mouse (eIF4AIMus) and the Trypanosomatid parasite Leishmania (LieIF4A). The eIF4A proteins belong to the DEAD-box family of RNA helicases, which are ATP-dependent RNA-binding proteins and RNA-dependent ATPases. DEAD-box proteins contain a commonly-shared core structure consisting of two linked domains with structural homology to that of recombinant protein A (RecA) and that contain conserved motifs that are involved in RNA and ATP binding, and in the enzymatic activity. The compound inhibits both the ATPase and helicase activities by perturbing ATP and RNA binding, and it is capable of binding other proteins containing nucleic acid-binding sites as well. We undertook kinetic analyses and found that the Leishmania LieIF4A protein binds 6-aminocholestanol with a higher apparent affinity than for ATP, although multiple binding sites were probably involved. Competition experiments with the individual RecA-like domains indicate that the primary binding sites are on RecA-like domain 1, and they include a cavity that we previously identified by molecular modeling of LieIF4A that involve conserved RNA-binding motifs. The compound affects the mammalian and Leishmania proteins differently, which indicates the binding sites and affinities are not the same. Thus, it is possible to develop drugs that target DEAD-box proteins from different organisms even when they are implicated in the same biological process.
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Affiliation(s)
- Yosser Zina Abdelkrim
- Expression Génétique Microbienne, CNRS UMR8261/Université Paris Diderot-Paris 7 & Paris Sciences et Lettres Research University, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005 Paris, France; Molecular Epidemiology and Experimental Pathology (LR16IPT04), Institut Pasteur de Tunis/Université de Tunis el Manar, 13 Place Pasteur, BP74 Tunis-Belvédère, 1002 Tunisia; Faculté des Sciences de Bizerte, Université de Carthage, 7021 Zarzouna-Bizerte, Tunisia
| | - Emna Harigua-Souiai
- Molecular Epidemiology and Experimental Pathology (LR16IPT04), Institut Pasteur de Tunis/Université de Tunis el Manar, 13 Place Pasteur, BP74 Tunis-Belvédère, 1002 Tunisia
| | - Mourad Barhoumi
- Molecular Epidemiology and Experimental Pathology (LR16IPT04), Institut Pasteur de Tunis/Université de Tunis el Manar, 13 Place Pasteur, BP74 Tunis-Belvédère, 1002 Tunisia
| | - Josette Banroques
- Expression Génétique Microbienne, CNRS UMR8261/Université Paris Diderot-Paris 7 & Paris Sciences et Lettres Research University, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Arnaud Blondel
- Unité de Bioinformatique Structurale, CNRS UMR 3528, Département de Biologie Structurale et Chimie, Institut Pasteur, 25-28 rue du Dr Roux, 75015 Paris, France
| | - Ikram Guizani
- Molecular Epidemiology and Experimental Pathology (LR16IPT04), Institut Pasteur de Tunis/Université de Tunis el Manar, 13 Place Pasteur, BP74 Tunis-Belvédère, 1002 Tunisia.
| | - N Kyle Tanner
- Expression Génétique Microbienne, CNRS UMR8261/Université Paris Diderot-Paris 7 & Paris Sciences et Lettres Research University, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005 Paris, France.
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10
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Abbara R, Maarouf M. Detect the presence of LeIF gene in the Leishmania tropica genome and sequence it. Meta Gene 2018; 17:28-33. [DOI: 10.1016/j.mgene.2018.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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11
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Sinha R, C MM, Raghwan, Das S, Das S, Shadab M, Chowdhury R, Tripathy S, Ali N. Genome Plasticity in Cultured Leishmania donovani: Comparison of Early and Late Passages. Front Microbiol 2018; 9:1279. [PMID: 30018594 PMCID: PMC6037818 DOI: 10.3389/fmicb.2018.01279] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 05/25/2018] [Indexed: 11/13/2022] Open
Abstract
Leishmania donovani possesses a complex heteroxenic life cycle where infective metacyclic promastigotes are pre-adapted to infect their host and cope up with intracellular stress. Exploiting the similarities between cultured and sandfly derived promastigotes, we used early and late passage cultured promastigotes to show specific changes at genome level which compromise pathogen fitness reflected in gene expression and infection studies. The pathogen loses virulence mostly via transcriptional and translational regulations and long-time cultivation makes them struggle to convert to virulent metacyclics. At the genomic level very subtle plasticity was observed between the early and the late passages mostly in defense-related, nutrient acquisition and signal transduction genes. Chromosome Copy number variation is seen in the early and late passages involving several genes that may be playing a role in pathogenicity. Our study highlights the importance of ABC transporters and calpain like cysteine proteases in parasite virulence in cultured promastigotes. Interestingly, these proteins are emerging as important patho-adaptive factors in clinical isolates of Leishmania. We found that the currently available genome of Leishmania in the NCBI database are from late passages. Our early passage genome can act as a reference for future studies on virulent isolates of Leishmania. The annotated leads from this study can be used for virulence surveillance and therapeutic studies in the Indian subcontinent.
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Affiliation(s)
- Roma Sinha
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Mathu Malar C
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Raghwan
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Subhadeep Das
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Sonali Das
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Mohammad Shadab
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Rukhsana Chowdhury
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Sucheta Tripathy
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Nahid Ali
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
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12
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Rashidi S, Kalantar K, Hatam G. Using proteomics as a powerful tool to develop a vaccine against Mediterranean visceral leishmaniasis. J Parasit Dis 2018; 42:162-70. [PMID: 29844618 DOI: 10.1007/s12639-018-0986-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/12/2018] [Indexed: 10/17/2022] Open
Abstract
Visceral leishmaniasis (VL) is a tropical infectious disease, which is called Mediterranean visceral leishmaniasis (MVL) in the Mediterranean area. In spite of many attempts, no effective commercial vaccine exists for MVL. To find new targets for developing antileishmanial vaccines, knowing parasite antigens that provoke the immune system are on demand. Nowadays, proteomics methods are defined as approaches for analysis of protein profiling of different cells. Within this framework, detection of new antigens is becoming more facilitated. In this review, we aimed to introduce possible targets using proteomics so; they could be used as candidates for developing vaccines against MVL. It can shed new light in the near future on the development of promising vaccines for MVL.
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13
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Borsari C, Quotadamo A, Ferrari S, Venturelli A, Cordeiro-da-Silva A, Santarem N, Costi MP. Scaffolds and Biological Targets Avenue to Fight Against Drug Resistance in Leishmaniasis. Annual Reports in Medicinal Chemistry 2018. [DOI: 10.1016/bs.armc.2018.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Harigua-Souiai E, Abdelkrim YZ, Bassoumi-Jamoussi I, Zakraoui O, Bouvier G, Essafi-Benkhadir K, Banroques J, Desdouits N, Munier-Lehmann H, Barhoumi M, Tanner NK, Nilges M, Blondel A, Guizani I. Identification of novel leishmanicidal molecules by virtual and biochemical screenings targeting Leishmania eukaryotic translation initiation factor 4A. PLoS Negl Trop Dis 2018; 12:e0006160. [PMID: 29346371 PMCID: PMC5790279 DOI: 10.1371/journal.pntd.0006160] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 01/30/2018] [Accepted: 12/11/2017] [Indexed: 01/25/2023] Open
Abstract
Leishmaniases are neglected parasitic diseases in spite of the major burden they inflict on public health. The identification of novel drugs and targets constitutes a research priority. For that purpose we used Leishmania infantum initiation factor 4A (LieIF), an essential translation initiation factor that belongs to the DEAD-box proteins family, as a potential drug target. We modeled its structure and identified two potential binding sites. A virtual screening of a diverse chemical library was performed for both sites. The results were analyzed with an in-house version of the Self-Organizing Maps algorithm combined with multiple filters, which led to the selection of 305 molecules. Effects of these molecules on the ATPase activity of LieIF permitted the identification of a promising hit (208) having a half maximal inhibitory concentration (IC50) of 150 ± 15 μM for 1 μM of protein. Ten chemical analogues of compound 208 were identified and two additional inhibitors were selected (20 and 48). These compounds inhibited the mammalian eIF4I with IC50 values within the same range. All three hits affected the viability of the extra-cellular form of L. infantum parasites with IC50 values at low micromolar concentrations. These molecules showed non-significant toxicity toward THP-1 macrophages. Furthermore, their anti-leishmanial activity was validated with experimental assays on L. infantum intramacrophage amastigotes showing IC50 values lower than 4.2 μM. Selected compounds exhibited selectivity indexes between 19 to 38, which reflects their potential as promising anti-Leishmania molecules.
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Affiliation(s)
- Emna Harigua-Souiai
- Laboratory of Molecular Epidemiology and Experimental Pathology – LR11IPT04, Institut Pasteur de Tunis, Université de Tunis el Manar, Tunis, Tunisia
- Institut Pasteur, Unité de Bioinformatique Structurale, CNRS UMR 3528, Département de Biologie Structurale et Chimie, Paris, France
| | - Yosser Zina Abdelkrim
- Laboratory of Molecular Epidemiology and Experimental Pathology – LR11IPT04, Institut Pasteur de Tunis, Université de Tunis el Manar, Tunis, Tunisia
- Laboratory of Microbial Gene Expression (EGM), CNRS UMR8261/Université Paris Diderot P7, Sorbonne Paris Cité & PSL, Institut de Biologie Physico-Chimique, Paris, France
- Faculté des Sciences de Bizerte, Université de Carthage, Tunis, Tunisia
| | - Imen Bassoumi-Jamoussi
- Laboratory of Molecular Epidemiology and Experimental Pathology – LR11IPT04, Institut Pasteur de Tunis, Université de Tunis el Manar, Tunis, Tunisia
| | - Ons Zakraoui
- Laboratory of Molecular Epidemiology and Experimental Pathology – LR11IPT04, Institut Pasteur de Tunis, Université de Tunis el Manar, Tunis, Tunisia
| | - Guillaume Bouvier
- Institut Pasteur, Unité de Bioinformatique Structurale, CNRS UMR 3528, Département de Biologie Structurale et Chimie, Paris, France
| | - Khadija Essafi-Benkhadir
- Laboratory of Molecular Epidemiology and Experimental Pathology – LR11IPT04, Institut Pasteur de Tunis, Université de Tunis el Manar, Tunis, Tunisia
| | - Josette Banroques
- Laboratory of Microbial Gene Expression (EGM), CNRS UMR8261/Université Paris Diderot P7, Sorbonne Paris Cité & PSL, Institut de Biologie Physico-Chimique, Paris, France
| | - Nathan Desdouits
- Institut Pasteur, Unité de Bioinformatique Structurale, CNRS UMR 3528, Département de Biologie Structurale et Chimie, Paris, France
| | - Hélène Munier-Lehmann
- Institut Pasteur, Unité de Chimie et Biocatalyse, Département de Biologie Structurale et Chimie, Paris, France
- Unité Mixte de Recherche 3523, Centre National de la Recherche Scientifique, Paris, France
| | - Mourad Barhoumi
- Laboratory of Molecular Epidemiology and Experimental Pathology – LR11IPT04, Institut Pasteur de Tunis, Université de Tunis el Manar, Tunis, Tunisia
| | - N. Kyle Tanner
- Laboratory of Microbial Gene Expression (EGM), CNRS UMR8261/Université Paris Diderot P7, Sorbonne Paris Cité & PSL, Institut de Biologie Physico-Chimique, Paris, France
| | - Michael Nilges
- Institut Pasteur, Unité de Bioinformatique Structurale, CNRS UMR 3528, Département de Biologie Structurale et Chimie, Paris, France
| | - Arnaud Blondel
- Institut Pasteur, Unité de Bioinformatique Structurale, CNRS UMR 3528, Département de Biologie Structurale et Chimie, Paris, France
| | - Ikram Guizani
- Laboratory of Molecular Epidemiology and Experimental Pathology – LR11IPT04, Institut Pasteur de Tunis, Université de Tunis el Manar, Tunis, Tunisia
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15
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Maspi N, Ghaffarifar F, Sharifi Z, Dalimi A. Codelivery of DNA vaccination encoding LeIF gene and IL-12 increases protection againstLeishmania majorinfection in BALB/c mice. Parasite Immunol 2016; 38:228-35. [DOI: 10.1111/pim.12310] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 02/08/2016] [Indexed: 02/06/2023]
Affiliation(s)
- N. Maspi
- Department of Medical Parasitology; Faculty of Medical Sciences; Tarbiat Modares University; Tehran Iran
| | - F. Ghaffarifar
- Department of Medical Parasitology; Faculty of Medical Sciences; Tarbiat Modares University; Tehran Iran
| | - Z. Sharifi
- Blood Transfusion Research Center; High Institute for Research and Education in Transfusion Medicine; Tehran Iran
| | - A. Dalimi
- Department of Medical Parasitology; Faculty of Medical Sciences; Tarbiat Modares University; Tehran Iran
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16
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Marchat LA, Arzola-Rodríguez SI, Hernandez-de la Cruz O, Lopez-Rosas I, Lopez-Camarillo C. DEAD/DExH-Box RNA Helicases in Selected Human Parasites. Korean J Parasitol 2015; 53:583-95. [PMID: 26537038 PMCID: PMC4635832 DOI: 10.3347/kjp.2015.53.5.583] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 08/10/2015] [Accepted: 08/10/2015] [Indexed: 11/23/2022]
Abstract
DEAD/DExH-box RNA helicases catalyze the folding and remodeling of RNA molecules in prokaryotic and eukaryotic cells, as well as in many viruses. They are characterized by the presence of the helicase domain with conserved motifs that are essential for ATP binding and hydrolysis, RNA interaction, and unwinding activities. Large families of DEAD/DExH-box proteins have been described in different organisms, and their role in all molecular processes involving RNA, from transcriptional regulation to mRNA decay, have been described. This review aims to summarize the current knowledge about DEAD/DExH-box proteins in selected protozoan and nematode parasites of medical importance worldwide, such as Plasmodium falciparum, Leishmania spp., Trypanosoma spp., Giardia lamblia, Entamoeba histolytica, and Brugia malayi. We discuss the functional characterization of several proteins in an attempt to understand better the molecular mechanisms involving RNA in these pathogens. The current data also highlight that DEAD/DExH-box RNA helicases might represent feasible drug targets due to their vital role in parasite growth and development.
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Affiliation(s)
- Laurence A Marchat
- Institutional Program of Molecular Biomedicine, Biotechnology Program, National School of Medicine and Homeopathy of the National Polytechnic Institute, Mexico City, CP 07320, Mexico
| | | | | | - Itzel Lopez-Rosas
- Institutional Program of Molecular Biomedicine, Biotechnology Program, National School of Medicine and Homeopathy of the National Polytechnic Institute, Mexico City, CP 07320, Mexico
| | - Cesar Lopez-Camarillo
- Genomics Sciences Program, Autonomous University of Mexico City, Mexico City, CP 03100, Mexico
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17
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Afonso-Lehmann RN, Thomas MC, Santana-Morales MA, Déniz D, López MC, Valladares B, Martínez-Carretero E. A DEVH-box RNA Helicase from Leishmania braziliensis is Associated to mRNA Cytoplasmic Granules. Protist 2015; 166:457-67. [PMID: 26284493 DOI: 10.1016/j.protis.2015.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 07/01/2015] [Accepted: 07/06/2015] [Indexed: 11/25/2022]
Abstract
RNA helicases are ubiquitous enzymes that participate in almost all aspects of RNA processing, including RNA and RNA-protein complex remodelling. In trypanosomatids, which post-transcriptionally regulate gene expression, the formation of different kinds of ribonucleoprotein granules under stress conditions modulates the parasite's RNA metabolism. This paper describes the isolation of a putative DEVH-box RNA helicase produced by promastigotes of Leishmania braziliensis. Using a Cy3-labelled dT30 oligo, FISH showed the localization of this protein to mRNA granules under starvation stress conditions. The central region of the protein was shown to be responsible for this behaviour.
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Affiliation(s)
- Raquel N Afonso-Lehmann
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofisico Fco. Sánchez s/n, 38207 Tenerife, Spain; Departamento de Biología Molecular, Instituto de Parasitología y Biomedicina López Neyra-CSIC, Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain
| | - Maria C Thomas
- Departamento de Biología Molecular, Instituto de Parasitología y Biomedicina López Neyra-CSIC, Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain
| | - Maria A Santana-Morales
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofisico Fco. Sánchez s/n, 38207 Tenerife, Spain
| | - Daniel Déniz
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofisico Fco. Sánchez s/n, 38207 Tenerife, Spain
| | - Manuel C López
- Departamento de Biología Molecular, Instituto de Parasitología y Biomedicina López Neyra-CSIC, Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain
| | - Basilio Valladares
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofisico Fco. Sánchez s/n, 38207 Tenerife, Spain
| | - Enrique Martínez-Carretero
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofisico Fco. Sánchez s/n, 38207 Tenerife, Spain.
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18
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Koutsoni O, Barhoumi M, Guizani I, Dotsika E. Leishmania eukaryotic initiation factor (LeIF) inhibits parasite growth in murine macrophages. PLoS One 2014; 9:e97319. [PMID: 24830439 PMCID: PMC4022710 DOI: 10.1371/journal.pone.0097319] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 04/16/2014] [Indexed: 01/28/2023] Open
Abstract
The leishmaniases constitute neglected global public health problems that require adequate control measures, prophylactic clinical vaccines and effective and non-toxic drug treatments. In this study, we explored the potential of Leishmania infantum eukaryotic initiation factor (LieIF), an exosomal protein, as a novel anti-infective therapeutic molecule. More specifically, we assessed the efficacy of recombinant LieIF, in combination with recombinant IFN-γ, in eliminating intracellular L. donovani parasites in an in vitro macrophage model. J774A.1 macrophages were initially treated with LieIF/IFN-γ prior to in vitro infection with L. donovani stationary phase promastigotes (pre-infection treatment), and resistance to infection was observed 72 h after infection. J774A.1 macrophages were also treated with LieIF/IFN-γ after L. donovani infection (post-infection treatment), and resistance to infection was also observed at both time points tested (19 h and 72 h) after infection. To elucidate the LieIF/IFN-γ-induced mechanism(s) that mediate the reduction of intracellular parasite growth, we examined the generation of potent microbicidal molecules, such as nitric oxide (NO) and reactive oxygen species (ROS), within infected macrophages. Furthermore, macrophages pre-treated with LieIF/IFN-γ showed a clear up-regulation in macrophage inflammatory protein 1α (MIP-1α) as well as tumor necrosis factor alpha (TNF-α) expression. However, significant different protein levels were not detected. In addition, macrophages pre-treated with LieIF/IFN-γ combined with anti-TNF-α monoclonal antibody produced significantly lower amounts of ROS. These data suggest that during the pre-treatment state, LieIF induces intramacrophage parasite growth inhibition through the production of TNF-α, which induces microbicidal activity by stimulating NO and ROS production. The mechanisms of NO and ROS production when macrophages are treated with LieIF after infection are probably different. Overall, these results indicate that LieIF is a good candidate for use as an anti-leishmanial molecule.
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Affiliation(s)
- Olga Koutsoni
- Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, Athens, Greece; Department of Microbiology, Medical School of Athens, National and Kapodistrian University, Athens, Greece
| | - Mourad Barhoumi
- Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée aux Maladies Infectieuses/LR11IPT04, Institut Pasteur de Tunis- Université Tunis El Manar, Tunis-Belvédère, Tunisia
| | - Ikram Guizani
- Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée aux Maladies Infectieuses/LR11IPT04, Institut Pasteur de Tunis- Université Tunis El Manar, Tunis-Belvédère, Tunisia
| | - Eleni Dotsika
- Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, Athens, Greece
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Louzir H, Aoun K, Späth GF, Laouini D, Prina E, Victoir K, Bouratbine A. [Leishmania epidemiology, diagnosis, chemotherapy and vaccination approaches in the international network of Pasteur Institutes]. Med Sci (Paris) 2013; 29:1151-60. [PMID: 24356147 DOI: 10.1051/medsci/20132912020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Protozoan parasites of the genus Leishmania generate severe human diseases termed leishmaniases. Due to their frequency and the severity of certain clinical forms, these diseases represent a major public health problem and limit the economic growth in various developing countries. The presence of Pasteur Institutes in countries with endemic leishmaniasis has provided important incentives to develop a strong public health agenda in the Pasteur scientific community with respect to this important disease. A concerted effort is now coordinated through the recently created LeishRIIP platform (www.leishriip.org), which aims to identify synergies and complementary expertise between the eleven members of the international network of Pasteur Institutes working on various aspects of the disease including epidemiology, diagnosis, chemotherapy and vaccination.
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Affiliation(s)
- Hechmi Louzir
- Laboratoire transmission, contrôle et immunobiologie des infections, LR 11-IPT-02, Institut Pasteur de Tunis, 13, place Pasteur, BP 74, 1002 Tunis, Tunisie
| | - Karim Aoun
- Laboratoire de parasitologie-mycologie, LR 11-IPT-06 parasitoses médicales, biotechnologie et biomolécules, Institut Pasteur de Tunis, 13, place Pasteur, BP 74, 1002 Tunis, Tunisie
| | - Gerald F Späth
- Unité de parasitologie moléculaire et signalisation, CNRS, URA 2581, Institut Pasteur, 25, rue du Docteur Roux, 75015 Paris, France
| | - Dhafer Laouini
- Laboratoire transmission, contrôle et immunobiologie des infections, LR 11-IPT-02, Institut Pasteur de Tunis, 13, place Pasteur, BP 74, 1002 Tunis, Tunisie
| | - Eric Prina
- Unité de parasitologie moléculaire et signalisation, CNRS, URA 2581, Institut Pasteur, 25, rue du Docteur Roux, 75015 Paris, France
| | - Kathleen Victoir
- Direction internationale, Institut Pasteur, 25, rue du Docteur Roux, 75015 Paris, France
| | - Aïda Bouratbine
- Laboratoire de parasitologie-mycologie, LR 11-IPT-06 parasitoses médicales, biotechnologie et biomolécules, Institut Pasteur de Tunis, 13, place Pasteur, BP 74, 1002 Tunis, Tunisie
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20
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Ramírez C, Dea-Ayuela M, Gutiérrez-Blázquez M, Bolas-Fernández F, Requena J, Puerta C. Identification of proteins interacting with HSP70 mRNAs in Leishmania braziliensis. J Proteomics 2013; 94:124-37. [DOI: 10.1016/j.jprot.2013.09.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 07/09/2013] [Accepted: 09/11/2013] [Indexed: 01/02/2023]
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21
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Barhoumi M, Meddeb-Garnaoui A, Tanner NK, Banroques J, Kaabi B, Guizani I. DEAD-box proteins, likeLeishmaniaeIF4A, modulate interleukin (IL)-12, IL-10 and tumour necrosis factor-alpha production by human monocytes. Parasite Immunol 2013; 35:194-9. [DOI: 10.1111/pim.12026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Accepted: 01/23/2013] [Indexed: 11/29/2022]
Affiliation(s)
- M. Barhoumi
- Laboratoire d'Epidémiologie et d'Ecologie Parasitaire/Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée (LR11IPT04); Institut Pasteur de Tunis - Université Tunis El Manar; Tunis-Belvédère; Tunisia
| | - A. Meddeb-Garnaoui
- Laboratoire de Parasitologie Médicale, Biotechnologies et Biomolécules; Institut Pasteur de Tunis - Université Tunis El Manar; Tunis-Belvédère; Tunisia
| | - N. K. Tanner
- Département de Microbiologie et Médecine Moléculaire; Centre Médical Universitaire; Genève; Switzerland
| | - J. Banroques
- Département de Microbiologie et Médecine Moléculaire; Centre Médical Universitaire; Genève; Switzerland
| | - B. Kaabi
- Laboratoire d'Epidémiologie et d'Ecologie Parasitaire/Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée (LR11IPT04); Institut Pasteur de Tunis - Université Tunis El Manar; Tunis-Belvédère; Tunisia
| | - I. Guizani
- Laboratoire d'Epidémiologie et d'Ecologie Parasitaire/Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée (LR11IPT04); Institut Pasteur de Tunis - Université Tunis El Manar; Tunis-Belvédère; Tunisia
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22
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Eltschinger S, Greganova E, Heller M, Bütikofer P, Altmann M. Eukaryotic translation elongation factor 1A (eEF1A) domain I from S. cerevisiae is required but not sufficient for inter-species complementation. PLoS One 2012; 7:e42338. [PMID: 22860115 PMCID: PMC3408446 DOI: 10.1371/journal.pone.0042338] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 07/03/2012] [Indexed: 12/05/2022] Open
Abstract
Ethanolamine phosphoglycerol (EPG) is a protein modification attached exclusively to eukaryotic elongation factor 1A (eEF1A). In mammals and plants, EPG is linked to conserved glutamate residues located in eEF1A domains II and III, whereas in the unicellular eukaryote Trypanosoma brucei, only domain III is modified by a single EPG. A biosynthetic precursor of EPG and structural requirements for EPG attachment to T. brucei eEF1A have been reported, but nothing is known about the EPG modifying enzyme(s). By expressing human eEF1A in T. brucei, we now show that EPG attachment to eEF1A is evolutionarily conserved between T. brucei and Homo sapiens. In contrast, S. cerevisiae eEF1A, which has been shown to lack EPG is not modified in T. brucei. Furthermore, we show that eEF1A cannot functionally complement across species when using T. brucei and S. cerevisiae as model organisms. However, functional complementation in yeast can be obtained using eEF1A chimera containing domains II or III from other species. In contrast, yeast domain I is strictly required for functional complementation in S. cerevisiae.
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Affiliation(s)
- Sandra Eltschinger
- Institute of Biochemistry & Molecular Medicine, University of Bern, Bern, Switzerland
| | - Eva Greganova
- Institute of Biochemistry & Molecular Medicine, University of Bern, Bern, Switzerland
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Manfred Heller
- Mass Spectrometry and Proteomics, Department of Clinical Research, University Hospital, Bern, Switzerland
| | - Peter Bütikofer
- Institute of Biochemistry & Molecular Medicine, University of Bern, Bern, Switzerland
- * E-mail: (PB); (MA)
| | - Michael Altmann
- Institute of Biochemistry & Molecular Medicine, University of Bern, Bern, Switzerland
- * E-mail: (PB); (MA)
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Abstract
Leishmania is a protozoan parasite and a causative agent of the various clinical forms of leishmaniasis. High cost, resistance and toxic side effects of traditional drugs entail identification and development of therapeutic alternatives. The sound understanding of parasite biology is key for identifying novel drug targets, that can induce the cell mediated immunity (mainly CD4+ and CD8+ IFN-gamma mediated responses) polarized towards a Th1 response. These aspects are important in designing a new vaccine along with the consideration of the candidates with respect to their ability to raise memory response in order to improve the vaccine performance. This review is an effort to identify molecules according to their homology with the host and their ability to be used as potent vaccine candidates.
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Affiliation(s)
- Bhawana Singh
- Infectious Disease Research Laboratory, Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221 005, UP, India
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Coelho VTS, Oliveira JS, Valadares DG, Chávez-Fumagalli MA, Duarte MC, Lage PS, Soto M, Santoro MM, Tavares CAP, Fernandes AP, Coelho EAF. Identification of proteins in promastigote and amastigote-like Leishmania using an immunoproteomic approach. PLoS Negl Trop Dis 2012; 6:e1430. [PMID: 22272364 PMCID: PMC3260309 DOI: 10.1371/journal.pntd.0001430] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Accepted: 10/27/2011] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The present study aims to identify antigens in protein extracts of promastigote and amastigote-like Leishmania (Leishmania) chagasi syn. L. (L.) infantum recognized by antibodies present in the sera of dogs with asymptomatic and symptomatic visceral leishmaniasis (VL). METHODOLOGY/PRINCIPAL FINDINGS Proteins recognized by sera samples were separated by two-dimensional electrophoresis (2DE) and identified by mass spectrometry. A total of 550 spots were observed in the 2DE gels, and approximately 104 proteins were identified. Several stage-specific proteins could be identified by either or both classes of sera, including, as expected, previously known proteins identified as diagnosis, virulence factors, drug targets, or vaccine candidates. Three, seven, and five hypothetical proteins could be identified in promastigote antigenic extracts; while two, eleven, and three hypothetical proteins could be identified in amastigote-like antigenic extracts by asymptomatic and symptomatic sera, as well as a combination of both, respectively. CONCLUSIONS/SIGNIFICANCE The present study represents a significant contribution not only in identifying stage-specific L. infantum molecules, but also in revealing the expression of a large number of hypothetical proteins. Moreover, when combined, the identified proteins constitute a significant source of information for the improvement of diagnostic tools and/or vaccine development to VL.
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Affiliation(s)
- Vinicio T. S. Coelho
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Jamil S. Oliveira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Diogo G. Valadares
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Miguel A. Chávez-Fumagalli
- Programa de Pós-Graduação em Medicina Molecular, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mariana C. Duarte
- Departamento de Patologia Clínica, Coltec, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Paula S. Lage
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, Belo Horizonte, Minas Gerais, Brazil
| | - Manuel Soto
- Centro de Biología Molecular Severo Ochoa, CSIC, UAM, Departamento de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain
| | - Marcelo M. Santoro
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Carlos A. P. Tavares
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ana Paula Fernandes
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Eduardo A. F. Coelho
- Departamento de Patologia Clínica, Coltec, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Programa de Pós-Graduação em Ciências Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
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BARHOUMI M, GARNAOUI A, KAABI B, TANNER NK, GUIZANI I. Leishmania infantum LeIF and its recombinant polypeptides modulate interleukin IL-12p70, IL-10 and tumour necrosis factor-α production by human monocytes. Parasite Immunol 2011; 33:583-8. [DOI: 10.1111/j.1365-3024.2011.01320.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Banroques J, Cordin O, Doère M, Linder P, Tanner NK. Analyses of the functional regions of DEAD-box RNA "helicases" with deletion and chimera constructs tested in vivo and in vitro. J Mol Biol 2011; 413:451-72. [PMID: 21884706 DOI: 10.1016/j.jmb.2011.08.032] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 08/11/2011] [Accepted: 08/16/2011] [Indexed: 01/11/2023]
Abstract
The DEAD-box family of putative RNA helicases is composed of ubiquitous proteins that are found in nearly all organisms and that are involved in virtually all processes involving RNA. They are characterized by two tandemly linked, RecA-like domains that contain 11 conserved motifs and highly variable amino- and carboxy-terminal flanking sequences. For this reason, they are often considered to be modular multi-domain proteins. We tested this by making extensive BLASTs and sequence alignments to elucidate the minimal functional unit in nature. We then used this information to construct chimeras and deletions of six essential yeast proteins that were assayed in vivo. We purified many of the different constructs and characterized their biochemical properties in vitro. We found that sequence elements can only be switched between closely related proteins and that the carboxy-terminal sequences are important for high ATPase and strand displacement activities and for high RNA binding affinity. The amino-terminal elements were often toxic when overexpressed in vivo, and they may play regulatory roles. Both the amino and the carboxyl regions have a high frequency of sequences that are predicted to be intrinsically disordered, indicating that the flanking regions do not form distinct modular domains but probably assume an ordered structure with ligand binding. Finally, the minimal functional unit of the DEAD-box core starts two amino acids before the isolated phenylalanine of the Q motif and extends to about 35 residues beyond motif VI. These experiments provide evidence for how a highly conserved structural domain can be adapted to different cellular needs.
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Affiliation(s)
- Josette Banroques
- Institut de Biologie Physico-chimique, CNRS UPR9073, Paris 75005, France
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27
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Banroques J, Doère M, Dreyfus M, Linder P, Tanner NK. Motif III in superfamily 2 "helicases" helps convert the binding energy of ATP into a high-affinity RNA binding site in the yeast DEAD-box protein Ded1. J Mol Biol 2009; 396:949-66. [PMID: 20026132 DOI: 10.1016/j.jmb.2009.12.025] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Revised: 12/08/2009] [Accepted: 12/14/2009] [Indexed: 01/09/2023]
Abstract
Motif III in the putative helicases of superfamily 2 is highly conserved in both its sequence and its structural context. It typically consists of the sequence alcohol-alanine-alcohol (S/T-A-S/T). Historically, it was thought to link ATPase activity with a "helicase" strand displacement activity that disrupts RNA or DNA duplexes. DEAD-box proteins constitute the largest family of superfamily 2; they are RNA-dependent ATPases and ATP-dependent RNA binding proteins that, in some cases, are able to disrupt short RNA duplexes. We made mutations of motif III (S-A-T) in the yeast DEAD-box protein Ded1 and analyzed in vivo phenotypes and in vitro properties. Moreover, we made a tertiary model of Ded1 based on the solved structure of Vasa. We used Ded1 because it has relatively high ATPase and RNA binding activities; it is able to displace moderately stable duplexes at a large excess of substrate. We find that the alanine and the threonine in the second and third positions of motif III are more important than the serine, but that mutations of all three residues have strong phenotypes. We purified the wild-type and various mutants expressed in Escherichia coli. We found that motif III mutations affect the RNA-dependent hydrolysis of ATP (k(cat)), but not the affinity for ATP (K(m)). Moreover, mutations alter and reduce the affinity for single-stranded RNA and subsequently reduce the ability to disrupt duplexes. We obtained intragenic suppressors of the S-A-C mutant that compensate for the mutation by enhancing the affinity for ATP and RNA. We conclude that motif III and the binding energy of gamma-PO(4) of ATP are used to coordinate motifs I, II, and VI and the two RecA-like domains to create a high-affinity single-stranded RNA binding site. It also may help activate the beta,gamma-phosphoanhydride bond of ATP.
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Affiliation(s)
- Josette Banroques
- Institut de Biologie Physico-chimique, CNRS UPR 9073 in association with the Université Paris VII, Paris 75005, France
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Singh G, Chavan HD, Dey CS. Proteomic analysis of miltefosine-resistant Leishmania reveals the possible involvement of eukaryotic initiation factor 4A (eIF4A). Int J Antimicrob Agents 2008; 31:584-6. [PMID: 18456462 DOI: 10.1016/j.ijantimicag.2008.01.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2008] [Accepted: 01/28/2008] [Indexed: 11/24/2022]
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29
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Clayton C, Shapira M. Post-transcriptional regulation of gene expression in trypanosomes and leishmanias. Mol Biochem Parasitol 2007; 156:93-101. [PMID: 17765983 DOI: 10.1016/j.molbiopara.2007.07.007] [Citation(s) in RCA: 309] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2007] [Revised: 07/12/2007] [Accepted: 07/13/2007] [Indexed: 11/25/2022]
Abstract
Gene expression in Kinetoplastids is very unusual in that the open reading frames are arranged in long polycistronic arrays, monocistronic mRNAs being created by post-transcriptional processing. Thus the regulation of gene expression is post-transcriptional. We here discuss recent results concerning the enzymes required for mRNA degradation, and components of the translation initiation machinery, and how both are regulated.
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Affiliation(s)
- Christine Clayton
- Zentrum für Molekualre Biologie der Universität Heidelberg, Im Neuenheimer Feld 282, D69120 Heidelberg, Germany.
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