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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
21
|
pubmed:dateCreated |
1985-10-30
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pubmed:abstractText |
The chemoreceptor for aspartate in Salmonella typhimurium was purified from an Escherichia coli strain containing a plasmid bearing the receptor's structural gene (tar). The receptor was solubilized from salt-washed membranes with the nonionic detergent octyl-beta-D-glucopyranoside and purified by a combination of ion exchange, molecular sieve and hydroxyapatite-agarose chromatography. The inclusion of glycerol and 1,10-phenanthroline in all buffers used prior to ion exchange chromatography prevented scission of the receptor by an endogenous proteolytic activity. The solubilized receptor was estimated to have a molecular weight of 248,000 from its behavior on Sephacryl S-300, suggesting that the receptor may be organized as a multimer containing 4 +/- 1 identical subunits. Circular dichroic measurements of the purified protein indicate that 78% of its residues are arranged in helical secondary structures.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
25
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pubmed:volume |
260
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
11706-10
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:2995346-Bacterial Proteins,
pubmed-meshheading:2995346-Chemoreceptor Cells,
pubmed-meshheading:2995346-Circular Dichroism,
pubmed-meshheading:2995346-Escherichia coli,
pubmed-meshheading:2995346-Molecular Weight,
pubmed-meshheading:2995346-Protein Conformation,
pubmed-meshheading:2995346-Receptors, Amino Acid,
pubmed-meshheading:2995346-Receptors, Neurotransmitter
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pubmed:year |
1985
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pubmed:articleTitle |
Purification and characterization of the aspartate chemoreceptor.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
|