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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
|
pubmed:dateCreated |
1983-5-5
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pubmed:abstractText |
Escherichia coli strains have been isolated with a transposon 10 insertion or an amber mutation inactivating the galP gene, which specifies the galactose-H+ (GalP) transport system. Comparison of the membrane proteins between these strains and their GalP+ parents by dual isotope analysis showed that a component of Mr = 34-39,000 was consistently absent from the GalP- mutants. Galactose, methyl-beta-D-galactoside, and talose protected the GalP transport system from inactivation by N-ethylmaleimide. A membrane protein of Mr = 34-38,000 was modified by N-([2-3H]ethyl)maleimide at the binding site of these sugars. Two-dimensional gel electrophoresis of the membrane proteins has resolved a component of Mr = 35-38,000 (average apparent pI = 5.7) present in parent strains (GalP+) but not in the GalP- mutants. These observations identified a protein of apparent Mr = 37,000 as the product of the galP gene of E. coli.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
0021-9258
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
10
|
pubmed:volume |
258
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
4390-6
|
pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6300086-Cell Membrane,
pubmed-meshheading:6300086-DNA Transposable Elements,
pubmed-meshheading:6300086-Escherichia coli,
pubmed-meshheading:6300086-Ethylmaleimide,
pubmed-meshheading:6300086-Galactose,
pubmed-meshheading:6300086-Membrane Proteins,
pubmed-meshheading:6300086-Molecular Weight
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pubmed:year |
1983
|
pubmed:articleTitle |
Identification of the GalP galactose transport protein of Escherichia coli.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|