Linked Life Data

7607320

Source:http://linkedlifedata.com/resource/pubmed/id/7607320

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-8-17
pubmed:abstractText
The large rep gene products, Rep78 and Rep68, of adeno-associated virus (AAV) are pleiotropic effector proteins which are required for AAV DNA replication and the trans-regulation of AAV gene expression. Apart from these essential functions prerequisite for the life cycle of AAV, these rep products are able to inhibit the replication and gene expression of human immunodeficiency virus type 1 (HIV-1) and a number of DNA viruses. Here, it is demonstrated that Rep78, as a chimeric with the maltose binding protein, directly binds the full-length HIV-1 long terminal repeat (LTR), and to a subset of these sequences containing the trans-activation response (TAR) sequence as DNA. These interactions, an effector protein physically binding a target promoter, suggest a direct mechanism of action for Rep78 inhibition. Furthermore, competitive binding studies between the TAR region and the full-length HIV-LTR, strongly suggested that another site(s) within the LTR was also bound by Rep78. Finally, as Rep78 binding is also believed to be affected by secondary structure within the DNA, it was found that Rep78 preferentially binds with HIV-LTR sequences with promoted secondary structure generated by heat denaturation and rapid cooling.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
3
pubmed:volume
367
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
267-71
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
The trans-inhibitory Rep78 protein of adeno-associated virus binds to TAR region DNA of the human immunodeficiency virus type 1 long terminal repeat.
pubmed:affiliation
Department of Obstetrics and Gynecology, University of Arkansas for Medical Sciences, Little Rock 72205, USA.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't