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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1984-2-22
pubmed:abstractText
This paper reports in vitro poly(ADP-ribosyl)ation of the herpes simplex virus type 1 (HSV-1) immediate early polypeptide Vmw175. The phenomenon was most clearly observed by use of the temperature-sensitive mutant tsK, which overproduces Vmw175 at the nonpermissive temperature (NPT) and has a mutation in the coding sequences for this polypeptide. Nuclei prepared from cells which were infected with tsK at NPT and subsequently downshifted to the permissive temperature incorporated [32P]NAD into Vmw175. This reaction did not occur when nuclei were prepared from cells constantly maintained at NPT, showing that only functional Vmw175 can be radiolabeled with [32P]NAD. The identity of the acceptor protein was confirmed by demonstrating the expected electrophoretic mobility differences between the HSV-1 and HSV-2 counterparts of Vmw175. The use of suitable inhibitors demonstrated that the reaction represented mono- or poly(ADP-ribosyl)ation, and further analysis showed the presence of long poly(ADP-ribose) chains attached to Vmw175. Poly(ADP-ribosyl)ation may be important as a cause or result of the regulation of viral transcription by Vmw175. Radiolabeling of another virus-specified polypeptide (approximate molecular weight 38,000), thought to be a structural component of the input virus, is also reported.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0042-6822
pubmed:author
pubmed:issnType
Print
pubmed:volume
131
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
492-501
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Poly(ADP-ribosyl)ation of a herpes simplex virus immediate early polypeptide.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't