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    Semin Immunopathol. 2010 Jun;32(2):127-36. Epub 2010 Mar 4.

    Lymphoid tyrosine phosphatase and autoimmunity: human genetics rediscovers tyrosine phosphatases.

    Source

    Division of Cell Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA.

    Abstract

    A relatively large number of protein tyrosine phosphatases (PTPs) are known to regulate signaling through the T cell receptor (TCR). Recent human genetics studies have shown that several of these PTPs are encoded by major autoimmunity genes. Here, we will focus on the lymphoid tyrosine phosphatase (LYP), a critical negative modulator of TCR signaling encoded by the PTPN22 gene. The functional analysis of autoimmune-associated PTPN22 genetic variants suggests that genetic variability of TCR signal transduction contributes to the pathogenesis of autoimmunity in humans.

    PMID:
    20204370
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC2881161
    Free PMC Article

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