Document Detail


Norovirus-binding proteins recovered from activated sludge micro-organisms with an affinity to a noroviral capsid peptide.
MedLine Citation:
PMID:  20735509     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
AIMS: Transmission routes of noroviruses, leading aetiological agents of acute gastroenteritis, are rarely verified when outbreaks occur. Because the destination of norovirus particles being firmly captured by micro-organisms could be totally different from that of those particles moving freely, micro-organisms with natural affinity ligands such as virus-binding proteins would affect the fate of viruses in environment, if such microbial affinity ligands exist. The aim of this study is to identify norovirus-binding proteins (NoVBPs) that are presumably working as natural ligands for norovirus particles in water environments.
METHODS AND RESULTS:  NoVBPs were recovered from activated sludge micro-organisms by an affinity chromatography technique in which a capsid peptide of norovirus genogroup II (GII) was immobilized. The recovered NoVBPs bind to norovirus-like particles (NoVLPs) of norovirus GII, and this adsorption was stronger than that to NoVLPs of norovirus genogroup I. The profile of two-dimensional electrophoresis of NoVBPs showed that the recovered NoVBPs included at least seven spots of protein. The determination of N-terminal amino acid sequences of these NoVBPs revealed that hydrophobic interactions could contribute to the adsorption between NoVBPs and norovirus particles.
CONCLUSIONS:  NoVBPs conferring a high affinity to norovirus GII were successfully isolated from activated sludge micro-organisms.
SIGNIFICANCE AND IMPACT OF THE STUDY:  NoVBPs could be natural viral ligands and play an important role in the NoV transmission.
Authors:
D Sano; K Wada; T Imai; Y Masago; T Omura
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of applied microbiology     Volume:  109     ISSN:  1365-2672     ISO Abbreviation:  J. Appl. Microbiol.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706280     Medline TA:  J Appl Microbiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1923-8     Citation Subset:  IM    
Copyright Information:
© 2010 The Authors. Journal of Applied Microbiology © 2010 The Society for Applied Microbiology.
Affiliation:
Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Kita-ku, Sapporo, Japan. dsano@eng.hokudai.ac.jp
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