Characterization of the guinea pig CMV gH/gL/GP129/GP131/GP133 complex in infection and spread.
Virology
; 441(1): 75-84, 2013 Jun 20.
Article
in En
| MEDLINE
| ID: mdl-23562482
ABSTRACT
In human cytomegalovirus (HCMV), the UL128-131A locus plays an essential role in cellular tropism and spread. Here, we report the complete annotation of the GP129-133 locus from guinea pig cytomegalovirus (GPCMV) and the discovery of the UL131A homolog, named GP133. We have found that similar to HCMV the GP129-133 proteins form a pentamer complex with the GPCMV glycoproteins gH and gL. In addition, we find that the GP129-133 proteins play a critical role in entry as the GP129-133 deletion mutant shows a defect in both endothelial and fibroblast cell entry. Although the GP129-133 deletion strain can propagate in vitro, we find that the deletion fails to spread in vivo. Interestingly, the wildtype strain can spontaneously give rise to the GP129-133 deletion strain during in vivo spread, suggesting genetic instability at this locus.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Viral Proteins
/
Roseolovirus
Limits:
Animals
Language:
En
Journal:
Virology
Year:
2013
Document type:
Article
Affiliation country:
United States