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| pubmed-article:1987118 | lifeskim:mentions | umls-concept:C0042153 | lld:lifeskim |
| pubmed-article:1987118 | lifeskim:mentions | umls-concept:C0036126 | lld:lifeskim |
| pubmed-article:1987118 | lifeskim:mentions | umls-concept:C0012854 | lld:lifeskim |
| pubmed-article:1987118 | lifeskim:mentions | umls-concept:C0030016 | lld:lifeskim |
| pubmed-article:1987118 | lifeskim:mentions | umls-concept:C0033382 | lld:lifeskim |
| pubmed-article:1987118 | lifeskim:mentions | umls-concept:C1145667 | lld:lifeskim |
| pubmed-article:1987118 | lifeskim:mentions | umls-concept:C0851285 | lld:lifeskim |
| pubmed-article:1987118 | lifeskim:mentions | umls-concept:C1533691 | lld:lifeskim |
| pubmed-article:1987118 | pubmed:issue | 1 | lld:pubmed |
| pubmed-article:1987118 | pubmed:dateCreated | 1991-2-20 | lld:pubmed |
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| pubmed-article:1987118 | pubmed:abstractText | The PutA protein is a membrane-associated enzyme that catalyzes the degradation of proline to glutamate. Genetic evidence suggests that in the absence of proline, the PutA protein also represses transcription of the putA and putP genes. To directly determine whether PutA protein binds to the put control region, we analyzed gel retardation of put control region DNA by purified PutA protein in vitro. The put control region is 420 bp. Purified PutA protein bound specifically to several nonoverlapping fragments of control region DNA, indicating the presence of multiple binding sites in the control region. Electrophoretic abnormalities and behavior of circularly permuted fragments of control region DNA indicate that it contains a region of intrinsically curved DNA. To determine whether the multiple binding sites or the DNA curvature are important in vivo, two types of deletions were constructed: (i) deletions that removed sequences predicted to contribute to DNA curvature as well as potential operator sites and (ii) deletions that removed only potential operator sites. Both types of deletions increased expression of the put genes but were still induced by proline, indicating that multiple cis elements are involved in repression. These data suggest a model for put repression that invokes the formation of a complex between PutA protein molecules bound at different sites in the control region, brought into proximity by a loop of curved DNA. | lld:pubmed |
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| pubmed-article:1987118 | pubmed:language | eng | lld:pubmed |
| pubmed-article:1987118 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:1987118 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:1987118 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:1987118 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:1987118 | pubmed:month | Jan | lld:pubmed |
| pubmed-article:1987118 | pubmed:issn | 0021-9193 | lld:pubmed |
| pubmed-article:1987118 | pubmed:author | pubmed-author:O'BrienKK | lld:pubmed |
| pubmed-article:1987118 | pubmed:author | pubmed-author:Ostrovsky... | lld:pubmed |
| pubmed-article:1987118 | pubmed:author | pubmed-author:MaloySS | lld:pubmed |
| pubmed-article:1987118 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:1987118 | pubmed:volume | 173 | lld:pubmed |
| pubmed-article:1987118 | pubmed:geneSymbol | putA | lld:pubmed |
| pubmed-article:1987118 | pubmed:geneSymbol | putP | lld:pubmed |
| pubmed-article:1987118 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:1987118 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:1987118 | pubmed:pagination | 211-9 | lld:pubmed |
| pubmed-article:1987118 | pubmed:dateRevised | 2010-9-10 | lld:pubmed |
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| pubmed-article:1987118 | pubmed:year | 1991 | lld:pubmed |
| pubmed-article:1987118 | pubmed:articleTitle | Regulation of proline utilization in Salmonella typhimurium: a membrane-associated dehydrogenase binds DNA in vitro. | lld:pubmed |
| pubmed-article:1987118 | pubmed:affiliation | Department of Microbiology, University of Illinois, Urbana 61801. | lld:pubmed |
| pubmed-article:1987118 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:1987118 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
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