Linked Life Data

2225077

Source:http://linkedlifedata.com/resource/pubmed/id/2225077

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1990-12-24
pubmed:abstractText
Tat protein of human immunodeficiency virus 1 is a potent trans-activator of viral gene expression. We show that purified Tat protein stimulates transcription from viral promoters greater than 10-fold in vitro. A Tat protein mutant that does not trans-activate in vivo did not stimulate transcription in vitro. Tat trans-activation required a functional TAR RNA sequence; trans-activation was competed by the addition of in vitro synthesized wild-type TAR RNA but not by mutant TAR RNAs. That Tat protein directly interacts with the TAR RNA during trans-activation in vitro was suggested by competition with Tat peptides. Preliminary evidence suggests the involvement of a cellular factor in recognition of TAR RNA during Tat trans-activation. Analysis of Tat trans-activation in vitro will provide new mechanistic insights into this process and allow a more detailed study of the relationship between Tat protein structure and function.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0092-8674
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
63
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
791-802
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
HIV-1 Tat protein trans-activates transcription in vitro.
pubmed:affiliation
Center for Cancer Research, Massachusetts Institute of Technology, Cambridge 02139.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't