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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
17
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pubmed:dateCreated |
1991-7-10
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pubmed:abstractText |
Phosphorylation of the RAF-1 protooncogene product and activation of its associated serine/threonine kinase are common features of the response of cells to peptide growth factors. We have used wild-type and mutant epidermal growth factor (EGF) receptors to investigate mechanisms of RAF-1 phosphorylation. In vivo EGF treatment rapidly stimulated phosphorylation of RAF-1 exclusively on serine residues. Stimulation of RAF-1 phosphorylation occurred at 37 degrees C but not at 4 degrees C and persisted after dissociation of EGF from its receptor. EGF-induced RAF-1 serine phosphorylation required the intrinsic tyrosine kinase activity of the EGF receptor but was independent of EGF receptor self-phosphorylation and of ligand-induced receptor internalization. Down-regulation of protein kinase C did not affect the EGF-induced increase in RAF-1 phosphorylation. These data suggest that the activated tyrosine kinase activity of the EGF receptor enhances serine phosphorylation of RAF-1 via an intermediary molecule(s).
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Amino Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Epidermal Growth Factor,
http://linkedlifedata.com/resource/pubmed/chemical/Protein-Tyrosine Kinases,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins c-raf,
http://linkedlifedata.com/resource/pubmed/chemical/Receptor, Epidermal Growth Factor
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
266
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
10941-5
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:1645717-Amino Acids,
pubmed-meshheading:1645717-Animals,
pubmed-meshheading:1645717-Epidermal Growth Factor,
pubmed-meshheading:1645717-Humans,
pubmed-meshheading:1645717-Kinetics,
pubmed-meshheading:1645717-L Cells (Cell Line),
pubmed-meshheading:1645717-Mice,
pubmed-meshheading:1645717-Phosphorylation,
pubmed-meshheading:1645717-Protein-Tyrosine Kinases,
pubmed-meshheading:1645717-Proto-Oncogene Proteins,
pubmed-meshheading:1645717-Proto-Oncogene Proteins c-raf,
pubmed-meshheading:1645717-Receptor, Epidermal Growth Factor,
pubmed-meshheading:1645717-Transfection
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pubmed:year |
1991
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pubmed:articleTitle |
Epidermal growth factor stimulates phosphorylation of RAF-1 independently of receptor autophosphorylation and internalization.
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pubmed:affiliation |
Department of Developmental Biology and Cancer, Albert Einstein College of Medicine, New York, New York 10461.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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