MHC: Peptide Analysis: Implications on the Immunogenicity of Hantaviruses' N protein
2009
Hantaviruses, members of the Bunyaviridae family, are enveloped negative-stranded RNA viruses with tripartite genomes --- S, M and L. The S genome codes for a nucleocapsid (N) protein, which is quite conserved among different species of the hantavirus genus and possess a recognized immunogenicity. In this work we analyzed the sequence of two regions in this protein (N94 *** 101 and N180 *** 188 ), which presents T cell epitopes for two species of hantaviruses --- Sin Nombre and Puumala. Interestingly, the same region has no described epitopes for Hantaan virus, despite its similarity. A study using a bioinformatic approach for the construction of MHC:peptide complexes was performed to detect any variation on the cleft region that could explain such degrees of immunogenicity. Our results shown topological and charges differences among the constructed complexes.
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