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Article (Scientific journals)
Exploiting the Burkholderia pseudomallei acute phase antigen BPSL2765 for structure-based epitope discovery/design in structural vaccinology.
Gourlay, Louise J.; Peri, Claudio; Ferrer-Navarro, Mario et al.
2013In Chemistry and Biology, 20 (9), p. 1147-56
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Keywords :
Antibodies/blood/immunology; Antigens, Bacterial/chemistry/immunology/metabolism; Bacterial Proteins/chemistry/genetics/immunology; Bacterial Vaccines/immunology; Burkholderia pseudomallei/immunology/metabolism; Crystallography, X-Ray; Epitope Mapping; Epitopes/chemistry/immunology/metabolism; Humans; Molecular Dynamics Simulation; Neutrophils/cytology/immunology; Phagocytosis; Protein Structure, Tertiary; Recombinant Proteins/biosynthesis/chemistry/immunology
Abstract :
[en] We solved the crystal structure of Burkholderia pseudomallei acute phase antigen BPSL2765 in the context of a structural vaccinology study, in the area of melioidosis vaccine development. Based on the structure, we applied a recently developed method for epitope design that combines computational epitope predictions with in vitro mapping experiments and successfully identified a consensus sequence within the antigen that, when engineered as a synthetic peptide, was selectively immunorecognized to the same extent as the recombinant protein in sera from melioidosis-affected subjects. Antibodies raised against the consensus peptide were successfully tested in opsonization bacterial killing experiments and antibody-dependent agglutination tests of B. pseudomallei. Our strategy represents a step in the development of immunodiagnostics, in the production of specific antibodies and in the optimization of antigens for vaccine development, starting from structural and physicochemical principles.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Gourlay, Louise J.
Peri, Claudio
Ferrer-Navarro, Mario
Conchillo-Sole, Oscar
Gori, Alessandro
Rinchai, Darawan
Thomas, Rachael J.
Champion, Olivia L.
Michell, Stephen L.
Kewcharoenwong, Chidchamai
Nithichanon, Arnone
Lassaux, Patricia ;  Université de Liège - ULiège > GIGA-R : Virologie - Immunologie
Perletti, Lucia
Longhi, Renato
Lertmemongkolchai, Ganjana
Titball, Richard W.
Daura, Xavier
Colombo, Giorgio
Bolognesi, Martino
More authors (9 more) Less
Language :
English
Title :
Exploiting the Burkholderia pseudomallei acute phase antigen BPSL2765 for structure-based epitope discovery/design in structural vaccinology.
Publication date :
2013
Journal title :
Chemistry and Biology
ISSN :
1074-5521
eISSN :
1879-1301
Publisher :
Cell Press, Cambridge, United States - Massachusetts
Volume :
20
Issue :
9
Pages :
1147-56
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2013 Elsevier Ltd. All rights reserved.
Available on ORBi :
since 22 December 2014

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