Title : Phosphorylation and identification of a major tyrosine phosphorylation site in protein tyrosine phosphatase 1C.

Pub. Date : 1994 Jul 29

PMID : 7518460






4 Functional Relationships(s)
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1 Phosphorylation and identification of a major tyrosine phosphorylation site in protein tyrosine phosphatase 1C. Tyrosine protein tyrosine phosphatase non-receptor type 6 Homo sapiens
2 In vitro, the tyrosine-phosphorylated PTP1C underwent rapid auto-dephosphorylation, an effect which could be blocked by the addition of sodium vanadate. Tyrosine protein tyrosine phosphatase non-receptor type 6 Homo sapiens
3 The sites of tyrosine phosphorylation were characterized from purified enzyme following treatment with insulin receptor kinase and from PTP1C expressed in 293 cells which had been stimulated with platelet-derived growth factor. Tyrosine protein tyrosine phosphatase non-receptor type 6 Homo sapiens
4 This result was confirmed in vivo through site-specific mutagenesis of PTP1C expressed in 293 cells; changing Tyr538 to Phe538 completely abolished tyrosine phosphorylation of the molecule. Tyrosine protein tyrosine phosphatase non-receptor type 6 Homo sapiens