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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1988-9-2
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pubmed:abstractText |
A novel protein tyrosine kinase not related to pp60c-src, designated as N-PTK, has recently been found in neonatal rat brain. In the present study, the enzyme was purified further by heparin-Sepharose column chromatography, and identified as a monomer protein with a Mr of 47 K and a pI of 7.0 by two-dimensional gel electrophoresis. The enzyme was found to phosphorylate purified pp60c-src at a tyrosine residue(s). The major phosphorylation site was shown by alpha-chymotryptic peptide mapping to be in the carboxy terminal V8 protease fragment (V2), but to be different from the autophosphorylation site, Tyr-416. The phosphorylation significantly suppressed pp60c-src activity with enolase as a substrate. These findings strongly suggest that N-PTK is a specific kinase that phosphorylates pp60c-src and regulates its function in the cell.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
29
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pubmed:volume |
154
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
796-802
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:2456763-Animals,
pubmed-meshheading:2456763-Animals, Newborn,
pubmed-meshheading:2456763-Brain,
pubmed-meshheading:2456763-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:2456763-Phosphorylation,
pubmed-meshheading:2456763-Protein-Tyrosine Kinases,
pubmed-meshheading:2456763-Proto-Oncogene Proteins,
pubmed-meshheading:2456763-Proto-Oncogene Proteins pp60(c-src),
pubmed-meshheading:2456763-Rats
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pubmed:year |
1988
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pubmed:articleTitle |
Identification of a novel protein tyrosine kinase that phosphorylates pp60c-src and regulates its activity in neonatal rat brain.
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pubmed:affiliation |
Division of Protein Metabolism, Osaka University, Suita, Japan.
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pubmed:publicationType |
Journal Article
|