| pubmed-article:2550812 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:2550812 | lifeskim:mentions | umls-concept:C0013485 | lld:lifeskim |
| pubmed-article:2550812 | lifeskim:mentions | umls-concept:C0542341 | lld:lifeskim |
| pubmed-article:2550812 | lifeskim:mentions | umls-concept:C0205160 | lld:lifeskim |
| pubmed-article:2550812 | lifeskim:mentions | umls-concept:C1564097 | lld:lifeskim |
| pubmed-article:2550812 | pubmed:issue | 9 | lld:pubmed |
| pubmed-article:2550812 | pubmed:dateCreated | 1989-10-26 | lld:pubmed |
| pubmed-article:2550812 | pubmed:abstractText | We have cloned the polyomavirus mutant fPyF9, which persists in an episomal state in F9 embryonal carcinoma cells (K. Ariizumi and H. Ariga, Mol. Cell. Biol. 6:3920-3927, 1986). fPyF9 carries three copies of exogenous sequences, the prototype of which is a 21-base-pair repeat (box DNA), in the region of the enhancer B domain of wild-type polyomavirus DNA. The consensus sequence, GCATTCCATTGTT, is 13 base pairs long. The box DNA inserted into fPyF9 appeared to come from a cellular sequence and was present in many kinds of DNAs, including F9 chromosomal DNA. The biological function of box DNA was analyzed by chloramphenicol acetyltransferase expression assays, using chimeric plasmids containing box DNA conjugated with simian virus 40 promoter elements. The results showed that box DNA repressed the activities both of the simian virus 40 promoter and enhancer only in transfected undifferentiated F9 cells and not in differentiated LTK- cells. Box DNA functioned independently of orientation and position with respect to the promoter in an enhancerlike manner, although the effect of box DNA was opposite that of the enhancer. The XhoI linker insertion into the consensus sequences of box DNA abolished the repression activity, and the protein(s) recognizing the consensus sequences was identified only in F9 cells, not in L cells. These analyses suggest that box DNA may be a negative regulatory element that functions in undifferentiated cells. | lld:pubmed |
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| pubmed-article:2550812 | pubmed:language | eng | lld:pubmed |
| pubmed-article:2550812 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:2550812 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:2550812 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:2550812 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:2550812 | pubmed:month | Sep | lld:pubmed |
| pubmed-article:2550812 | pubmed:issn | 0270-7306 | lld:pubmed |
| pubmed-article:2550812 | pubmed:author | pubmed-author:NakamuraMM | lld:pubmed |
| pubmed-article:2550812 | pubmed:author | pubmed-author:TakahashiHH | lld:pubmed |
| pubmed-article:2550812 | pubmed:author | pubmed-author:ArigaHH | lld:pubmed |
| pubmed-article:2550812 | pubmed:author | pubmed-author:AriizumiKK | lld:pubmed |
| pubmed-article:2550812 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:2550812 | pubmed:volume | 9 | lld:pubmed |
| pubmed-article:2550812 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:2550812 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:2550812 | pubmed:pagination | 4032-7 | lld:pubmed |
| pubmed-article:2550812 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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| pubmed-article:2550812 | pubmed:meshHeading | pubmed-meshheading:2550812-... | lld:pubmed |
| pubmed-article:2550812 | pubmed:year | 1989 | lld:pubmed |
| pubmed-article:2550812 | pubmed:articleTitle | Negative transcriptional regulatory element that functions in embryonal carcinoma cells. | lld:pubmed |
| pubmed-article:2550812 | pubmed:affiliation | Institute of Medical Science, University of Tokyo, Japan. | lld:pubmed |
| pubmed-article:2550812 | pubmed:publicationType | Journal Article | lld:pubmed |
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