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Updated: Aug 9, 2026

Identification of Post-translational Modifications of Plant Protein Complexes
Published on: February 22, 2014
The mechanism of protein kinase regulation by protein phosphatases
1Section of Structural Biology, Institute of Cancer Research, Chester Beatty Laboratories, 237 Fulham Road, London SW3 6JB, UK. dbarford@icr.ac.uk
Abstract:
Protein kinases are an important class of substrate of the protein phosphatases. We have examined the mechanism of dephosphorylation of the activation segments of the insulin receptor kinase and cyclin-dependent kinase 2 by their respective phosphatases, namely the tyrosine specific phosphatase PTP1B and the dual specificity phosphatase KAP. These studies reveal that PTP1B and KAP utilize contrasting mechanisms in order to dephosphorylate their substrates specifically.
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