Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-11-16
pubmed:abstractText
The post-translational regulation of picornavirus gene expression mediated by the cascade processing of viral proteins is not well understood. Both pulse-chase studies of infected cells and in vitro studies of the translation of poliovirus type 1 RNA transcribed from genomic cDNA clones indicate a specific cascade of polyprotein processing in which the P1, P2, and P3 precursor proteins are primary products of viral proteinase cleavage. We report the results of a short-time kinetic analysis of poliovirus type 1 protein processing in an in vitro translation system and in infected HeLa cells which indicate the existence of another, rapid pathway of polyprotein processing mediated by the activity of the 3C proteinase. The observed pathway is distinct from and in addition to the one previously known. The potential role of this alternative pathway of processing in the post-translational regulation of viral gene expression is discussed.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0042-6822
pubmed:author
pubmed:issnType
Print
pubmed:volume
191
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
309-20
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Alternate poliovirus nonstructural protein processing cascades generated by primary sites of 3C proteinase cleavage.
pubmed:affiliation
Department of Microbiology and Molecular Genetics, College of Medicine, University of California, Irvine 92717.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.