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Tang WK, Salinas ND, Kolli SK, Xu S, Urusova DV, Kumar H, Jimah JR, Subramani PA, Ogbondah MM, Barnes SJ, Adams JH, Tolia NH. Multistage protective anti-CelTOS monoclonal antibodies with cross-species sterile protection against malaria. Nat Commun 2024; 15:7487. [PMID: 39209843 PMCID: PMC11362571 DOI: 10.1038/s41467-024-51701-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 08/15/2024] [Indexed: 09/04/2024] Open
Abstract
CelTOS is a malaria vaccine antigen that is conserved in Plasmodium and other apicomplexan parasites and plays a role in cell-traversal. The structural basis and mechanisms of CelTOS-induced protective immunity to parasites are unknown. Here, CelTOS-specific monoclonal antibodies (mAbs) 7g7 and 4h12 demonstrated multistage activity, protecting against liver infection and preventing parasite transmission to mosquitoes. Both mAbs demonstrated cross-species activity with sterile protection against in vivo challenge with transgenic parasites containing either P. falciparum or P. vivax CelTOS, and with transmission reducing activity against P. falciparum. The mAbs prevented CelTOS-mediated pore formation providing insight into the protective mechanisms. X-ray crystallography and mutant-library epitope mapping revealed two distinct broadly conserved neutralizing epitopes. 7g7 bound to a parallel dimer of CelTOS, while 4h12 bound to a novel antiparallel dimer architecture. These findings inform the design of antibody therapies and vaccines and raise the prospect of a single intervention to simultaneously combat P. falciparum and P. vivax malaria.
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MESH Headings
- Antibodies, Monoclonal/immunology
- Animals
- Plasmodium falciparum/immunology
- Plasmodium vivax/immunology
- Malaria Vaccines/immunology
- Antibodies, Protozoan/immunology
- Mice
- Malaria, Falciparum/immunology
- Malaria, Falciparum/prevention & control
- Malaria, Falciparum/parasitology
- Crystallography, X-Ray
- Epitopes/immunology
- Malaria, Vivax/prevention & control
- Malaria, Vivax/immunology
- Malaria, Vivax/parasitology
- Antigens, Protozoan/immunology
- Humans
- Female
- Epitope Mapping
- Malaria/immunology
- Malaria/prevention & control
- Malaria/parasitology
- Mice, Inbred BALB C
- Protozoan Proteins/immunology
- Protozoan Proteins/chemistry
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Affiliation(s)
- Wai Kwan Tang
- Host‒Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Nichole D Salinas
- Host‒Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Surendra Kumar Kolli
- Center of Global Health and Interdisciplinary Research, College of Public Health, University of South Florida, Tampa, FL, USA
| | - Shulin Xu
- Center of Global Health and Interdisciplinary Research, College of Public Health, University of South Florida, Tampa, FL, USA
| | - Darya V Urusova
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Hirdesh Kumar
- Host‒Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - John R Jimah
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Pradeep Annamalai Subramani
- Center of Global Health and Interdisciplinary Research, College of Public Health, University of South Florida, Tampa, FL, USA
| | - Madison M Ogbondah
- Center of Global Health and Interdisciplinary Research, College of Public Health, University of South Florida, Tampa, FL, USA
| | - Samantha J Barnes
- Center of Global Health and Interdisciplinary Research, College of Public Health, University of South Florida, Tampa, FL, USA
| | - John H Adams
- Center of Global Health and Interdisciplinary Research, College of Public Health, University of South Florida, Tampa, FL, USA
| | - Niraj H Tolia
- Host‒Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
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2
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Dickey TH, McAleese H, Salinas ND, Lambert LE, Tolia NH. Structure-based design of a Plasmodium vivax Duffy-binding protein immunogen focuses the antibody response to functional epitopes. Protein Sci 2024; 33:e5095. [PMID: 38988315 PMCID: PMC11237555 DOI: 10.1002/pro.5095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 06/13/2024] [Accepted: 06/15/2024] [Indexed: 07/12/2024]
Abstract
The Duffy-binding protein (DBP) is a promising antigen for a malaria vaccine that would protect against clinical symptoms caused by Plasmodium vivax infection. Region II of DBP (DBP-II) contains the receptor-binding domain that engages host red blood cells, but DBP-II vaccines elicit many non-neutralizing antibodies that bind distal to the receptor-binding surface. Here, we engineered a truncated DBP-II immunogen that focuses the immune response to the receptor-binding surface. This immunogen contains the receptor-binding subdomain S1S2 and lacks the immunodominant subdomain S3. Structure-based computational design of S1S2 identified combinatorial amino acid changes that stabilized the isolated S1S2 without perturbing neutralizing epitopes. This immunogen elicited DBP-II-specific antibodies in immunized mice that were significantly enriched for blocking activity compared to the native DBP-II antigen. This generalizable design process successfully stabilized an integral core fragment of a protein and focused the immune response to desired epitopes to create a promising new antigen for malaria vaccine development.
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MESH Headings
- Protozoan Proteins/immunology
- Protozoan Proteins/chemistry
- Protozoan Proteins/genetics
- Antigens, Protozoan/immunology
- Antigens, Protozoan/chemistry
- Antigens, Protozoan/genetics
- Plasmodium vivax/immunology
- Animals
- Malaria Vaccines/immunology
- Malaria Vaccines/chemistry
- Epitopes/immunology
- Epitopes/chemistry
- Mice
- Antibodies, Protozoan/immunology
- Receptors, Cell Surface/immunology
- Receptors, Cell Surface/chemistry
- Receptors, Cell Surface/genetics
- Models, Molecular
- Malaria, Vivax/immunology
- Malaria, Vivax/prevention & control
- Mice, Inbred BALB C
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Affiliation(s)
- Thayne H. Dickey
- Host‐Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious DiseasesNational Institutes of Health (NIH)BethesdaMarylandUSA
| | - Holly McAleese
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious DiseasesNational Institutes of Health (NIH)BethesdaMarylandUSA
| | - Nichole D. Salinas
- Host‐Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious DiseasesNational Institutes of Health (NIH)BethesdaMarylandUSA
| | - Lynn E. Lambert
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious DiseasesNational Institutes of Health (NIH)BethesdaMarylandUSA
| | - Niraj H. Tolia
- Host‐Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious DiseasesNational Institutes of Health (NIH)BethesdaMarylandUSA
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3
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Miura K, Flores-Garcia Y, Long CA, Zavala F. Vaccines and monoclonal antibodies: new tools for malaria control. Clin Microbiol Rev 2024; 37:e0007123. [PMID: 38656211 PMCID: PMC11237600 DOI: 10.1128/cmr.00071-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open
Abstract
SUMMARYMalaria remains one of the biggest health problems in the world. While significant reductions in malaria morbidity and mortality had been achieved from 2000 to 2015, the favorable trend has stalled, rather significant increases in malaria cases are seen in multiple areas. In 2022, there were 249 million estimated cases, and 608,000 malaria-related deaths, mostly in infants and children aged under 5 years, globally. Therefore, in addition to the expansion of existing anti-malarial control measures, it is critical to develop new tools, such as vaccines and monoclonal antibodies (mAbs), to fight malaria. In the last 2 years, the first and second malaria vaccines, both targeting Plasmodium falciparum circumsporozoite proteins (PfCSP), have been recommended by the World Health Organization to prevent P. falciparum malaria in children living in moderate to high transmission areas. While the approval of the two malaria vaccines is a considerable milestone in vaccine development, they have much room for improvement in efficacy and durability. In addition to the two approved vaccines, recent clinical trials with mAbs against PfCSP, blood-stage vaccines against P. falciparum or P. vivax, and transmission-blocking vaccine or mAb against P. falciparum have shown promising results. This review summarizes the development of the anti-PfCSP vaccines and mAbs, and recent topics in the blood- and transmission-blocking-stage vaccine candidates and mAbs. We further discuss issues of the current vaccines and the directions for the development of next-generation vaccines.
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Affiliation(s)
- Kazutoyo Miura
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, USA
| | - Yevel Flores-Garcia
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Malaria Research Institute, Baltimore, Maryland, USA
| | - Carole A Long
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, USA
| | - Fidel Zavala
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Malaria Research Institute, Baltimore, Maryland, USA
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4
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Ma R, Salinas ND, Orr-Gonzalez S, Richardson B, Ouahes T, Torano H, Jenkins BJ, Dickey TH, Neal J, Duan J, Morrison RD, Gittis AG, Doritchamou JYA, Zaidi I, Lambert LE, Duffy PE, Tolia NH. Structure-guided design of VAR2CSA-based immunogens and a cocktail strategy for a placental malaria vaccine. PLoS Pathog 2024; 20:e1011879. [PMID: 38437239 PMCID: PMC10939253 DOI: 10.1371/journal.ppat.1011879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 03/14/2024] [Accepted: 11/29/2023] [Indexed: 03/06/2024] Open
Abstract
Placental accumulation of Plasmodium falciparum infected erythrocytes results in maternal anemia, low birth weight, and pregnancy loss. The parasite protein VAR2CSA facilitates the accumulation of infected erythrocytes in the placenta through interaction with the host receptor chondroitin sulfate A (CSA). Antibodies that prevent the VAR2CSA-CSA interaction correlate with protection from placental malaria, and VAR2CSA is a high-priority placental malaria vaccine antigen. Here, structure-guided design leveraging the full-length structures of VAR2CSA produced a stable immunogen that retains the critical conserved functional elements of VAR2CSA. The design expressed with a six-fold greater yield than the full-length protein and elicited antibodies that prevent adhesion of infected erythrocytes to CSA. The reduced size and adaptability of the designed immunogen enable efficient production of multiple variants of VAR2CSA for use in a cocktail vaccination strategy to increase the breadth of protection. These designs form strong foundations for the development of potent broadly protective placental malaria vaccines.
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Affiliation(s)
- Rui Ma
- Host-Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Nichole D Salinas
- Host-Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Sachy Orr-Gonzalez
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Brandi Richardson
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Tarik Ouahes
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Holly Torano
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Bethany J Jenkins
- Pathogenesis and Immunity Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Thayne H Dickey
- Host-Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Jillian Neal
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Junhui Duan
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Robert D Morrison
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Apostolos G Gittis
- Structural Biology Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Justin Y A Doritchamou
- Pathogenesis and Immunity Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Irfan Zaidi
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Lynn E Lambert
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Patrick E Duffy
- Vaccine Development Unit, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
- Pathogenesis and Immunity Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Niraj H Tolia
- Host-Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
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5
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Dechavanne C, Dechavanne S, Bosch J, Metral S, Redinger KR, Watson QD, Ratsimbasoa AC, Roeper B, Krishnan S, Fong R, Bennett S, Carias L, Chen E, Salinas ND, Ghosh A, Tolia NH, Woost PG, Jacobberger JW, Colin Y, Gamain B, King CL, Zimmerman PA. Duffy antigen is expressed during erythropoiesis in Duffy-negative individuals. Cell Host Microbe 2023; 31:2093-2106.e7. [PMID: 38056457 PMCID: PMC10843566 DOI: 10.1016/j.chom.2023.10.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/14/2023] [Accepted: 10/31/2023] [Indexed: 12/08/2023]
Abstract
The erythrocyte silent Duffy blood group phenotype in Africans is thought to confer resistance to Plasmodium vivax blood-stage infection. However, recent studies report P. vivax infections across Africa in Fy-negative individuals. This suggests that the globin transcription factor 1 (GATA-1) SNP underlying Fy negativity does not entirely abolish Fy expression or that P. vivax has developed a Fy-independent red blood cell (RBC) invasion pathway. We show that RBCs and erythroid progenitors from in vitro differentiated CD34 cells and from bone marrow aspirates from Fy-negative samples express a functional Fy on their surface. This suggests that the GATA-1 SNP does not entirely abolish Fy expression. Given these results, we developed an in vitro culture system for P. vivax and show P. vivax can invade erythrocytes from Duffy-negative individuals. This study provides evidence that Fy is expressed in Fy-negative individuals and explains their susceptibility to P. vivax with major implications and challenges for P. vivax malaria eradication.
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Affiliation(s)
- Celia Dechavanne
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Sebastien Dechavanne
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Jürgen Bosch
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA; InterRayBio, LLC, Cleveland, OH, USA
| | - Sylvain Metral
- Université Paris Cité and Université des Antilles, INSERM, BIGR, 75015 Paris, France
| | - Karli R Redinger
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Quentin D Watson
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Arsene C Ratsimbasoa
- University of Fianarantsoa, Fianarantsoa, Madagascar; CNARP (Centre National d'Application de Recherche Pharmaceutique), Antananarivo, Madagascar
| | - Brooke Roeper
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Sushma Krishnan
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Rich Fong
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Seth Bennett
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Lenore Carias
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Edwin Chen
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Nichole D Salinas
- Host-Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Anil Ghosh
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Niraj H Tolia
- Host-Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Philip G Woost
- Case Comprehensive Cancer Center Flow Cytometry Core, Case Western Reserve University, Cleveland, OH, USA
| | - James W Jacobberger
- Case Comprehensive Cancer Center Flow Cytometry Core, Case Western Reserve University, Cleveland, OH, USA
| | - Yves Colin
- Université Paris Cité and Université des Antilles, INSERM, BIGR, 75015 Paris, France
| | - Benoit Gamain
- Université Paris Cité and Université des Antilles, INSERM, BIGR, 75015 Paris, France.
| | - Christopher L King
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA; Veterans Affairs Research Service, Cleveland, OH, USA.
| | - Peter A Zimmerman
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA.
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6
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Kranjc A, Narwani TJ, Abby SS, de Brevern AG. Structural Space of the Duffy Antigen/Receptor for Chemokines' Intrinsically Disordered Ectodomain 1 Explored by Temperature Replica-Exchange Molecular Dynamics Simulations. Int J Mol Sci 2023; 24:13280. [PMID: 37686086 PMCID: PMC10488288 DOI: 10.3390/ijms241713280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
Plasmodium vivax malaria affects 14 million people each year. Its invasion requires interactions between the parasitic Duffy-binding protein (PvDBP) and the N-terminal extracellular domain (ECD1) of the host's Duffy antigen/receptor for chemokines (DARC). ECD1 is highly flexible and intrinsically disordered, therefore it can adopt different conformations. We computationally modeled the challenging ECD1 local structure. With T-REMD simulations, we sampled its dynamic behavior and collected its most representative conformations. Our results suggest that most of the DARC ECD1 domain remains in a disordered state during the simulated time. Globular local conformations are found in the analyzed local free-energy minima. These globular conformations share an α-helix spanning residues Ser18 to Ser29 and in many cases they comprise an antiparallel β-sheet, whose β-strands are formed around residues Leu10 and Ala49. The formation of a parallel β-sheet is almost negligible. So far, progress in understanding the mechanisms forming the basis of the P. vivax malaria infection of reticulocytes has been hampered by experimental difficulties, along with a lack of DARC structural information. Our collection of the most probable ECD1 structural conformations will help to advance modeling of the DARC structure and to explore DARC-ECD1 interactions with a range of physiological and pathological ligands.
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Affiliation(s)
- Agata Kranjc
- Université Paris Cité and Université des Antilles and Université de la Réunion, BIGR, UMR_S1134, DSIMB Team, Inserm, F-75014 Paris, France;
- Institut National de la Transfusion Sanguine (INTS), F-75015 Paris, France
- Institute of Neuroscience and Medicine (INM-9)/Institute for Advanced Simulation (IAS-5), Forschungszentrum Jülich, D-52425 Jülich, Germany
| | - Tarun Jairaj Narwani
- Université Paris Cité and Université des Antilles and Université de la Réunion, BIGR, UMR_S1134, DSIMB Team, Inserm, F-75014 Paris, France;
- Institut National de la Transfusion Sanguine (INTS), F-75015 Paris, France
| | - Sophie S. Abby
- University Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, F-38000 Grenoble, France;
| | - Alexandre G. de Brevern
- Université Paris Cité and Université des Antilles and Université de la Réunion, BIGR, UMR_S1134, DSIMB Team, Inserm, F-75014 Paris, France;
- Institut National de la Transfusion Sanguine (INTS), F-75015 Paris, France
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