Linked Life Data

8261442

Source:http://linkedlifedata.com/resource/pubmed/id/8261442

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-1-21
pubmed:databankReference
pubmed:abstractText
Two novel platelet-derived growth factor (PDGF) alpha-receptor transcripts of 1.5 kilobases and 5.0 kilobases are expressed in the human teratocarcinoma cell line Tera-2 only while the cells are in an undifferentiated state. After retinoic acid-induced differentiation, expression of these mRNAs is completely shut off and instead, the cells express a single 6.4-kilobase mRNA species which is also expressed in many other cell types. The 1.5-kilobase mRNA initiates within intron 12, contains the correctly spliced exons 13, 14, 15, and 16, and contains a cryptic exon, designated teratocarcinoma cryptic exon, at the 3' end. Teratocarcinoma cryptic exon contains a functional polyadenylation signal. Exons 13 to 16 correspond to the first tyrosine kinase domain and to part of the interkinase domain of the PDGF alpha-receptor. Recently, a splice variant lacking exon 14 was identified. These results show that a combination of alternative promoter usage and alternative splicing of the human PDGF alpha-receptor gene occur in a developmentally regulated fashion. In vitro translation of the 1.5-kilobase mRNA generates protein products which can be specifically immunoprecipitated with a PDGF alpha-receptor-specific antibody. The significance of the expression of this transcript for the growth factor-independent proliferation of undifferentiated Tera-2 cells is unclear. Expression of PDGF alpha-receptor transcripts containing the cryptic exon may be useful as a marker for undifferentiated stem cells in human teratocarcinomas.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
54
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
220-5
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Developmentally regulated expression of two novel platelet-derived growth factor alpha-receptor transcripts in human teratocarcinoma cells.
pubmed:affiliation
Department of Cell Biology, University of Nijmegen, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't