rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1-2
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pubmed:dateCreated |
1990-12-4
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pubmed:abstractText |
Crystalline preparations of glycogen phosphorylase b contain traces of acid phosphatase activity. Non-denaturing gel electrophoresis of phosphorylase b reveals a single band of 1-naphthyl phosphate phosphohydrolase activity which co-migrates with phosphorylase. The two enzymes can be separated by Sephadex G-200 column chromatography, where the phosphatase exhibits an apparent Mr of 17,000. The contaminant enzyme hydrolyzes effectively the phenolic ester of monoorthophosphate with optimal activity for p-nitrophenyl phosphate and L-phosphotyrosine between pH 5.5 and 6.0. The phosphatase is insensitive to inhibition by L(+)-tartrate but strongly inhibited by microM vanadate and Zn2+.
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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 |
Oct
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pubmed:issn |
0014-5793
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
271
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
76-8
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:1699799-Acid Phosphatase,
pubmed-meshheading:1699799-Animals,
pubmed-meshheading:1699799-Chromatography, Gel,
pubmed-meshheading:1699799-Hydrogen-Ion Concentration,
pubmed-meshheading:1699799-Hydrolysis,
pubmed-meshheading:1699799-Molecular Weight,
pubmed-meshheading:1699799-Muscles,
pubmed-meshheading:1699799-Nitrophenols,
pubmed-meshheading:1699799-Organophosphorus Compounds,
pubmed-meshheading:1699799-Phosphorylase b,
pubmed-meshheading:1699799-Phosphotyrosine,
pubmed-meshheading:1699799-Rabbits,
pubmed-meshheading:1699799-Substrate Specificity,
pubmed-meshheading:1699799-Tyrosine,
pubmed-meshheading:1699799-Vanadates,
pubmed-meshheading:1699799-Zinc
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pubmed:year |
1990
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pubmed:articleTitle |
A low-molecular weight acid phosphatase present in crystalline preparations of rabbit skeletal muscle glycogen phosphorylase b.
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pubmed:affiliation |
Institute of Biological Research, National Hellenic Research Foundation, Athens, Greece.
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pubmed:publicationType |
Journal Article
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