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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
|
pubmed:dateCreated |
1993-7-9
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pubmed:abstractText |
In order to help clarify the cellular mechanisms that regulate expression of the human c-src proto-oncogene, we have isolated a series of overlapping genomic clones that contain the c-src promoter region, as well as three previously uncharacterized exons. These exons encode the 350-bp 5' untranslated region of the c-src mRNA and span 35 kb of genomic DNA, extending the human c-src locus to approximately 60 kb. Subcloning and sequence analysis of the 5' flanking region of the gene revealed a high GC content and several consensus Sp1 and AP2 binding sites. However, TATA or CAAT boxes were not present, a characteristic shared by other GC-rich promoters. Promoter-CAT constructs demonstrated that the promoter was functional in transfection assays and that its activity was dependent on correct orientation. CAT-promoter deletion constructs were used to define the 5' boundary for maximal promoter activity and to reveal the presence of both positive and negative regulatory elements. S1 analyses of human c-src mRNA from cell lines indicated that multiple transcription start sites were utilized.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
|
pubmed:issn |
0950-9232
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
8
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pubmed:geneSymbol |
c-src
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1973-81
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8510939-Base Sequence,
pubmed-meshheading:8510939-Binding Sites,
pubmed-meshheading:8510939-Chromosome Mapping,
pubmed-meshheading:8510939-DNA,
pubmed-meshheading:8510939-Exons,
pubmed-meshheading:8510939-Genes, src,
pubmed-meshheading:8510939-Humans,
pubmed-meshheading:8510939-Molecular Sequence Data,
pubmed-meshheading:8510939-Promoter Regions, Genetic,
pubmed-meshheading:8510939-Transcription, Genetic
|
pubmed:year |
1993
|
pubmed:articleTitle |
Organization and analysis of the promoter region and 5' non-coding exons of the human c-src proto-oncogene.
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pubmed:affiliation |
Cell Regulation Group, University of Calgary Medical Centre, Alberta, Canada.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|