Linked Life Data

14625551

Source:http://linkedlifedata.com/resource/pubmed/id/14625551

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2003-12-3
pubmed:databankReference
pubmed:abstractText
Long interspersed elements (LINE-1s, also called L1s) are the only active members of the autonomous, non-long terminal repeat (LTR) retrotransposon family, which reshapes mammalian genomes in many different ways. LINE-1 expression is low in most differentiated cells but high in some cancer cells, in testis and during embryonic development. To minimize the negative impact on their hosts' genomes, many mobile elements strategically limit their amplification potential, particularly in somatic cells. Here we show that the A-rich coding strand of the human LINE-1 contains multiple functional canonical and noncanonical polyadenylation (poly(A)) signals, resulting in truncation of full-length transcripts by premature polyadenylation. This attenuation lowers the rate of retrotransposition in assays using HeLa cells. It probably also increases the negative effects of LINE-1 insertions into genes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1061-4036
pubmed:author
pubmed:issnType
Print
pubmed:volume
35
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
363-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
RNA truncation by premature polyadenylation attenuates human mobile element activity.
pubmed:affiliation
Tulane Cancer Center, SL66, and Department of Environmental Health Sciences, Tulane University Health Sciences Center, 1430 Tulane Ave., New Orleans, Louisiana 70112, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.