Phosphatase Family LMWPTP

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Phosphatase Classification: Family LMWPTP

Function

In eukaryotes, LMWPTP dephosphorylate many receptor tyrosine kianses, such as platelet-derived growth factor receptor (PDGFR), insulin receptor (InsR), or ephrin receptor (Eph) [1].

In prokaryotes, the molecular function is not fully understood. It is involved in the syntheisis and translocation of exopolysaccharides (EPS) and capsular polysaccharides (CPS) in E. coli.

Evolution

The LMWPTP is present not only in eukaryotes but also prokaryotes. In eukaryotes, it is generally absent from alveolates, trypanosoma, leishmania.

Reference

  1. Kikawa KD, Vidale DR, Van Etten RL, and Kinch MS. Regulation of the EphA2 kinase by the low molecular weight tyrosine phosphatase induces transformation. J Biol Chem. 2002 Oct 18;277(42):39274-9. DOI:10.1074/jbc.M207127200 | PubMed ID:12167657 | HubMed [Kikawa02]