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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1993-10-8
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pubmed:abstractText |
The activity of calcium-independent, calcium-dependent and calcium + phospholipid-dependent (protein kinase C) kinases in cytosol fractions from rat brain glial cells in primary culture and from subcultured astrocytes and in oligodendrocyte-type 2 astrocyte lineage glia has been measured with histone Type IIIS as substrate. Accurate measurement of protein kinase C activity was achieved only after chromatography of glial cytosols on DE-52 anion exchange columns to remove an endogenous inhibitor, identified tentatively as a phosphatase possibly of the protein phosphatase 2A class. The specific activity of protein kinase C in glial cell cytosol increased from 7.5 +/- 0.8 to 37.9 +/- 0.9 nmol32P incorporated/mg protein/10 min with increasing culture age. Protein kinase C activity in glial cytosol was significantly higher when primary cultures were grown in a defined medium lacking serum. Astrocyte-conditioned medium and phorbol esters caused a rapid translocation of glial cell protein kinase C activity from cytosol to membrane compartments. Myelin basic protein and protamine have been compared with histone as substrates for measurement of calcium-independent, calcium-dependent and calcium + phospholipid-dependent kinase activities in glial cytosol.
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pubmed:grant | |
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 |
Jul
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pubmed:issn |
0197-0186
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
23
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
87-94
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pubmed:dateRevised |
2009-9-29
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pubmed:meshHeading |
pubmed-meshheading:8396485-Animals,
pubmed-meshheading:8396485-Calcium,
pubmed-meshheading:8396485-Cells, Cultured,
pubmed-meshheading:8396485-Cytosol,
pubmed-meshheading:8396485-Neuroglia,
pubmed-meshheading:8396485-Phosphotransferases,
pubmed-meshheading:8396485-Protein Kinase C,
pubmed-meshheading:8396485-Rats
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pubmed:year |
1993
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pubmed:articleTitle |
The protein kinase C, calcium-independent and calcium-dependent kinase activities of glial cells in primary culture and subculture.
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pubmed:affiliation |
Department of Biology, University of York, England.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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