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Title: The receptor-like protein tyrosine phosphatase α: A role in cell proliferation and oncogenesis
Authors: Pallen, C.J. 
Keywords: Catalytic domains
Protein tyrosine phosphatase
Issue Date: 1993
Source: Pallen, C.J. (1993). The receptor-like protein tyrosine phosphatase α: A role in cell proliferation and oncogenesis. Seminars in Cell and Developmental Biology 4 (6) : 403-408. ScholarBank@NUS Repository.
Abstract: The transmembrane nature of the receptor-like protein tyrosine phosphatases (PTPases) suggests that they transduce as yet unidentified extracellular signals to intracellular events via a phosphotyrosyl-protein dephosphorylation step, although little is known of their regulation and cellular activities. Structure/function studies of PTPα demonstrate that both catalytic domains are required for full enzymatic efficiency and that interdomain interactions may modulate PTPα activity and specificity. Overexpression of PTPα results in cell transformation and tumorigenesis, likely as a consequence of the ability of PTPα. to dephosphorylate and activate the c-src tyrosine kinase. This suggests a role for PTPα in normal cell proliferation. PTPα is so far unique among the PTPases in terms of its oncogenic potential, and overexpression or deregulation of PTPα may be involved in the genesis, progression or maintenance of certain tumor states.
Source Title: Seminars in Cell and Developmental Biology
ISSN: 10849521
Appears in Collections:Staff Publications

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