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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1978-12-20
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pubmed:abstractText |
The reaction between formate dehydrogenase from Bacterium sp. 1 and diethylpyrocarbonate results in the enzyme inactivation. 4 histidine residues can be blocked per subunit by this reagent. The enzyme activity correlates with the disappearance of free histidines. The process of enzyme inactivation is biphasic and obeys pseudo-first-order kinetics. NAD and NADH slow down the rate of inactivation, but do not protect histidine residues against modification. Formate does not protect the enzyme. The modification of 80% of histidines increases the Km value for both substrates 3-fold. The general conformation of enzyme in the course of modification is preserved. The modification of histidines markedly decreases the reactivity of an essential SH-group of formate dehydrogenase against the Ellman reagent.
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pubmed:language |
rus
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Aldehyde Oxidoreductases,
http://linkedlifedata.com/resource/pubmed/chemical/Diethyl Pyrocarbonate,
http://linkedlifedata.com/resource/pubmed/chemical/Dithionitrobenzoic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Formates,
http://linkedlifedata.com/resource/pubmed/chemical/Histidine,
http://linkedlifedata.com/resource/pubmed/chemical/NAD
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0320-9725
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
43
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1212-21
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pubmed:dateRevised |
2007-7-23
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pubmed:meshHeading |
pubmed-meshheading:212129-Aldehyde Oxidoreductases,
pubmed-meshheading:212129-Bacteria,
pubmed-meshheading:212129-Diethyl Pyrocarbonate,
pubmed-meshheading:212129-Dithionitrobenzoic Acid,
pubmed-meshheading:212129-Formates,
pubmed-meshheading:212129-Histidine,
pubmed-meshheading:212129-Kinetics,
pubmed-meshheading:212129-NAD
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pubmed:year |
1978
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pubmed:articleTitle |
[The role of histidine residues of formate dehydrogenase from Bacterium sp. 1].
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pubmed:publicationType |
Journal Article,
English Abstract
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