Document Detail


Cell cycle dependent nucleolar localization of the coronavirus nucleocapsid protein.
MedLine Citation:
PMID:  17426449     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The nucleolus is a dynamic sub-nuclear structure which is involved in ribosome subunit biogenesis, modulation of cell growth and response to cell stress. The nucleolar proteome varies particularly with regard to the cell cycle. Viral proteins can localise to the nucleolus and using the coronavirus nucleocapsid (N) protein as a model, the cell cycle dependent trafficking of viral proteins to the nucleolus was investigated. Cell synchronisation studies coupled to live cell confocal microscopy indicated that nucleolar localisation of N protein was greater in the G2/M phase of the cell cycle than at other stages. This result was reinforced when FRAP and FLIP analysis indicated that N protein was more mobile within the nucleoplasm and nucleolus in the G2/M phase of the cell cycle. The data suggested that viral nucleolar proteins can also localise to the nucleolus in a cell cycle dependent manner and this may be related to dynamic trafficking.
Authors:
Ryan Cawood; Sally M Harrison; Brian K Dove; Mark L Reed; Julian A Hiscox
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Cell cycle (Georgetown, Tex.)     Volume:  6     ISSN:  1551-4005     ISO Abbreviation:  Cell Cycle     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-04-11     Completed Date:  2007-05-09     Revised Date:  2007-06-28    
Medline Journal Info:
Nlm Unique ID:  101137841     Medline TA:  Cell Cycle     Country:  United States    
Other Details:
Languages:  eng     Pagination:  863-7     Citation Subset:  IM    
Affiliation:
Institute of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, UK.
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MeSH Terms
Descriptor/Qualifier:
Active Transport, Cell Nucleus / physiology
Animals
Cell Compartmentation / physiology
Cell Cycle / genetics*
Cell Nucleolus / genetics,  metabolism*
Cercopithecus aethiops
Coronavirus / genetics,  metabolism*
Coronavirus Infections / genetics,  metabolism
Fluorescence Recovery After Photobleaching
G2 Phase / physiology
Microscopy, Confocal
Nucleocapsid Proteins / genetics,  metabolism*
Protein Transport / physiology
Vero Cells
Chemical
Reg. No./Substance:
0/Nucleocapsid Proteins; 0/nucleocapsid protein, Coronavirus

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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