Linked Life Data

9054504

Source:http://linkedlifedata.com/resource/pubmed/id/9054504

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1997-4-3
pubmed:databankReference
pubmed:abstractText
HeT-A elements are non-long terminal repeat (non-LTR) retrotransposons found in head-to-tail arrays on Drosophila chromosome ends, where they form telomeres. We report that HeT-A promoter activity is located in the 3' end of the element, unlike the 5' location seen for other non-LTR retrotransposons. In HeT-A arrays the 3' sequence of one element directs transcription of its downstream neighbor. Because the upstream promoter has the same sequence as the 3' end of the transcribed element, the HeT-A promoter is effectively equivalent to a 5' LTR in both structure and function. Retroviruses and LTR retrotransposons have their promoters and transcription initiation sites in their 5' LTRs. Thus HeT-A appears to have the structure of an evolutionary intermediate between non-LTR and LTR retrotransposons.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0092-8674
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
88
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
647-55
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Promoting in tandem: the promoter for telomere transposon HeT-A and implications for the evolution of retroviral LTRs.
pubmed:affiliation
Department of Biology, Massachusetts Institute of Technology, Cambridge 02139, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.