Abstract
The review summarizes for the first time the current concepts of the role of tyrosine phosphorylation in regulation of signal transduction pathways in unicellular eukaryotes. Evolutionary concepts are developed about the origin of protein tyrosine kinases (PTK)-signaling.
MeSH terms
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Animals
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Eukaryotic Cells / metabolism*
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Growth Substances / physiology*
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Models, Biological
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Phosphorylation
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Phosphotyrosine / analogs & derivatives
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Phosphotyrosine / metabolism*
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Protein Kinases / metabolism
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Protein Kinases / physiology*
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STAT Transcription Factors / metabolism
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Signal Transduction
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Tyrosine / metabolism*
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ras Proteins / physiology
Substances
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Growth Substances
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STAT Transcription Factors
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Phosphotyrosine
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Tyrosine
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Protein Kinases
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ras Proteins