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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1976-10-20
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pubmed:abstractText |
A hybrid enzyme (LI) of liver phosphorylase [EC 2.4.1.1.] (L) and phosphorylase I, which is mainly located in brain, was isolated and its enzymatic and immunological properties were examined. The following results were obtained: (1) AMP stimulated the b forms of the hybrid (LIb), I(Ib), and L(Lb); (2) in the presence of AMP, SO42- stimulated Lb more than LIb and inhibited Ib; (3) in the absence of AMP, SO42- stimulated all three isozymes in the order: Ibeta less than LI less than Lbeta; (4) on conversion to the a forms, the activities of L, LI, and I increased 35.5-fold, 3-fold, and 1.2-fold, respectively; (5) the relative inhibition potencies of anti-Lb antibody with LIa and LIb were 63% and 4%, respectively of that with La, and those of anti-Ib antibody with LIa and LIb were 42% and 88%, respectively of that with Ia. Since the ratios of the specific activities of purified La and Ia and of Lbeta and Ibeta are 70: 82 and 2 : 70, respectively (Schliselfeld, 1973), the present findings suggest a 1 : 1 association of I and L subunits in the hybrid molecule.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Adenosine Monophosphate,
http://linkedlifedata.com/resource/pubmed/chemical/Isoenzymes,
http://linkedlifedata.com/resource/pubmed/chemical/Macromolecular Substances,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphorylase Kinase,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphorylases,
http://linkedlifedata.com/resource/pubmed/chemical/Sulfates
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0021-924X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
79
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1109-11
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pubmed:dateRevised |
2007-12-19
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pubmed:meshHeading |
pubmed-meshheading:956137-Adenosine Monophosphate,
pubmed-meshheading:956137-Animals,
pubmed-meshheading:956137-Binding Sites,
pubmed-meshheading:956137-Isoenzymes,
pubmed-meshheading:956137-Liver,
pubmed-meshheading:956137-Macromolecular Substances,
pubmed-meshheading:956137-Muscles,
pubmed-meshheading:956137-Phosphorylase Kinase,
pubmed-meshheading:956137-Phosphorylases,
pubmed-meshheading:956137-Protein Binding,
pubmed-meshheading:956137-Protein Conformation,
pubmed-meshheading:956137-Rabbits,
pubmed-meshheading:956137-Sulfates
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pubmed:year |
1976
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pubmed:articleTitle |
Hybrid enzyme of liver phosphorylase and phosphorylase I.
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pubmed:publicationType |
Journal Article
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