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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
22
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pubmed:dateCreated |
1992-12-9
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pubmed:abstractText |
The activity of the human O6-methylguanine-DNA methyltransferase (MGMT) gene promoter was determined in eight human cell lines by measuring chloramphenicol acetyltransferase activity in a reporter gene system. MGMT promoter activities in cells that do not express MGMT (Mer-) fell within the range of activities seen in cells that do express MGMT (Mer+). The promoter region contains 11 potential binding sites for the transcription factor Sp1, but no correlation was seen between cellular Sp1 protein and MGMT promoter chloramphenicol acetyltransferase activity. Because Mer- cells are not deficient in the factors needed for transcription of MGMT, we suggest that at least two mechanisms regulate MGMT expression. One suppresses MGMT mRNA and protein in Mer- cells, and another regulates the levels of constitutive expression in Mer+ cells. Sp1 is not a limiting factor in MGMT expression.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Chloramphenicol O-Acetyltransferase,
http://linkedlifedata.com/resource/pubmed/chemical/Methyltransferases,
http://linkedlifedata.com/resource/pubmed/chemical/O(6)-Methylguanine-DNA...,
http://linkedlifedata.com/resource/pubmed/chemical/Sp1 Transcription Factor
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
|
pubmed:volume |
52
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pubmed:geneSymbol |
MGMT
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
6404-6
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:1423289-Blotting, Western,
pubmed-meshheading:1423289-Chloramphenicol O-Acetyltransferase,
pubmed-meshheading:1423289-Gene Expression Regulation, Enzymologic,
pubmed-meshheading:1423289-HeLa Cells,
pubmed-meshheading:1423289-Humans,
pubmed-meshheading:1423289-Methyltransferases,
pubmed-meshheading:1423289-O(6)-Methylguanine-DNA Methyltransferase,
pubmed-meshheading:1423289-Promoter Regions, Genetic,
pubmed-meshheading:1423289-Sp1 Transcription Factor,
pubmed-meshheading:1423289-Transfection,
pubmed-meshheading:1423289-Tumor Cells, Cultured
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pubmed:year |
1992
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pubmed:articleTitle |
A comparison of human O6-methylguanine-DNA methyltransferase promoter activity in Mer+ and Mer- cells.
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pubmed:affiliation |
Department of Biochemical and Clinical Pharmacology, St. Jude Children's Research Hospital, Memphis, Tennessee 38101-0318.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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