| Literature DB >> 22072750 |
Martin Chi-Wai Chan1, Nelson Lee, Wing-Shan Ho, Carmen Oi-Kwan Law, Terrence Chi-Kong Lau, Stephen Kwok-Wing Tsui, Joseph Jao-Yiu Sung.
Abstract
We report sequence hypervariability in the viral protein 1 (VP1) interaction domain of VP2 in the norovirus (NoV) genogroup II genotype 4 (GII.4) lineage on 3 levels: (i) the global evolution of pandemic/epidemic strains from the mid-1970s through post-2006, (ii) the local emergence of an epidemic strain, and (iii) an immunocompromised patient chronically shedding NoV. When a quantitative yeast two-hybrid assay was used, VP2 was found to interact with VP1 in a time-ordered, strain-dependent manner among 3 NoV GII.4 strains. Our findings suggest that VP1 and VP2 may covary in virus evolution and that sequence hypervariability of VP2 may be functionally driven. Further investigations are warranted.Entities:
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Year: 2011 PMID: 22072750 PMCID: PMC3255813 DOI: 10.1128/JVI.00228-11
Source DB: PubMed Journal: J Virol ISSN: 0022-538X Impact factor: 5.103