Difference between revisions of "Phosphatase Subfamily PTPRC"

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===Functions===
 
===Functions===
 
CD45 modulates immune function <cite>furlan14</cite>. It is selectively expressed on lymphocytes and dephosphorylates and activates the [http://kinase.com/wiki/index.php/Kinase_Family_Src src family] tyrosine kinases lck, fyn and lyn in B and T cells.
 
CD45 modulates immune function <cite>furlan14</cite>. It is selectively expressed on lymphocytes and dephosphorylates and activates the [http://kinase.com/wiki/index.php/Kinase_Family_Src src family] tyrosine kinases lck, fyn and lyn in B and T cells.
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=== Miscellaneous ===
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PTPRC (CD45) is used in [http://en.wikipedia.org/wiki/Circulating_tumor_cell#CellSearch_Method CellSearch] system to detect [http://en.wikipedia.org/wiki/Circulating_tumor_cell circulating tumor cell].
  
 
===References===
 
===References===

Revision as of 18:05, 26 March 2015


Phosphatase Classification: Fold CC1: Superfamily CC1: Family PTP: Subfamily PTPRC


PTPRC (CD45) is a vertebrate-specific receptor PTP involved in immune signaling.

Evolution

PTPRC is found as a single-copy gene in all vertebrates, including the lamprey, but not in any invertebrate.

Domain

PTPRC has twin intracellular PTP phosphatase domains, and extracellular FN3 domains, plus a CD45-specific and a PTP-N-terminal domain found specifically in PTPRC, as annotated by InterPro. CD45 is extensively alternatively spliced.

Functions

CD45 modulates immune function [1]. It is selectively expressed on lymphocytes and dephosphorylates and activates the src family tyrosine kinases lck, fyn and lyn in B and T cells.

Miscellaneous

PTPRC (CD45) is used in CellSearch system to detect circulating tumor cell.

References

  1. Furlan G, Minowa T, Hanagata N, Kataoka-Hamai C, and Kaizuka Y. Phosphatase CD45 both positively and negatively regulates T cell receptor phosphorylation in reconstituted membrane protein clusters. J Biol Chem. 2014 Oct 10;289(41):28514-25. DOI:10.1074/jbc.M114.574319 | PubMed ID:25128530 | HubMed [furlan14]