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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1980-3-17
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pubmed:abstractText |
Reuber H 35 hepatoma cells were synchronized by transfer in a serum free medium. Growth was re-initiated by addition of serum. Under these conditions DNA synthesis exhibited a maximum after 24 hours. Chromatin non-histone proteins prepared from cells at various phases of the cell cycle were incubated with [gamma-32P] ATP and the radioactive pattern of protein bound 32P was analysed by electrophoresis on polyacrylamide gels. No radioactive peak was observed in G0. Several peaks appeared 3 hours after the addition of serum. The radioactivity progressively increased until the cells reached the S phase. When most of the cells were in the S phase the radioactivity strongly decreased. Chromatin protein kinase activities were found to increase in late G1 and continued to increase in the S phase. The increase was 65% when phosvitin was the substrate, 100% with casein and histone H1. It is suggested that chromatin phosphorylated proteins could be involved in the mechanism which initiates DNA synthesis in G1 phase cells.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:issn |
0300-9084
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
61
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
|
pubmed:pagination |
855-9
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:518930-Animals,
pubmed-meshheading:518930-Cell Cycle,
pubmed-meshheading:518930-Cell Line,
pubmed-meshheading:518930-Chromosomal Proteins, Non-Histone,
pubmed-meshheading:518930-Liver Neoplasms, Experimental,
pubmed-meshheading:518930-Phosphorylation,
pubmed-meshheading:518930-Protein Kinases
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pubmed:year |
1979
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pubmed:articleTitle |
Variations in some molecular events during the early phases of the Reuber H 35 cell cycle. II.-Chromatin protein phosphorylation and protein kinases.
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pubmed:publicationType |
Journal Article
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