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Structure-based modeling of SARS-CoV-2 peptide/HLA-A02 antigens
Santrupti Nerli.
Nikolaos G Sgourakis.
Acceso Abierto
Atribución-NoComercial-SinDerivadas
10.1101/2020.03.23.004176
As a first step toward the development of diagnostic and therapeutic tools to fight the Coronavirus disease (COVID-19), it is important to characterize CD8+ T cell epitopes in the SARS-CoV-2 peptidome that can trigger adaptive immune responses. Here, we use RosettaMHC, a comparative modeling approach which leverages existing high-resolution X-ray structures from peptide/MHC complexes available in the Protein Data Bank, to derive physically realistic 3D models for high-affinity SARS-CoV-2 epitopes. We outline an application of our method to model 439 9mer and 279 10mer predicted epitopes displayed by the common allele HLA-A*02:01, and we make our models publicly available through an online database (https://rosettamhc.chemistry.ucsc.edu). As more detailed studies on antigen-specific T cell recognition become available, RosettaMHC models of antigens from different strains and HLA alleles can be used as a basis to understand the link between peptide/HLA complex structure and surface chemistry with immunogenicity, in the context of SARS-CoV-2 infection.
www.biorxiv.org
2020
Artículo
https://www.biorxiv.org/content/10.1101/2020.03.23.004176v2.full.pdf
Inglés
VIRUS RESPIRATORIOS
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