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- _6 wasQuotedFrom 7512963 provenance.
- _6 value "Insulin also stimulated the tyrosine phosphorylation of a mutant PTP1C lacking SH2 domains in Chinese hamster ovary cells, suggesting that the SH2 domains are not required for insulin-stimulated tyrosine phosphorylation of PTP1C. The insulin receptor tyrosine kinase catalyzed the tyrosine phosphorylation of PTP1C in a cell-free system. Peptide mapping of phosphorylated PTP1C showed that Tyr538 in the C-terminal region was phosphorylated in response to insulin. The tyrosine phosphorylation of PTP1C by the insulin receptor kinase increased phosphatase activity." provenance.