Title : The T cell receptor-mediated phosphorylation of Pyk2 tyrosines 402 and 580 occurs via a distinct mechanism than other receptor systems.

Pub. Date : 2010 Apr

PMID : 20028775






3 Functional Relationships(s)
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1 To address this issue, the role of individual signaling pathways in the phosphorylation of Pyk2 tyrosines 402 and 580 upon TCR activation was assessed in human T cells. Tyrosine T cell receptor beta variable 20/OR9-2 (non-functional) Homo sapiens
2 In contrast to other receptor systems, the TCR-induced phosphorylation of Pyk2 tyrosines 402 and 580 was dependent on the Src family kinases, Fyn or Lck. Tyrosine T cell receptor beta variable 20/OR9-2 (non-functional) Homo sapiens
3 Interestingly, the TCR-mediated phosphorylation of Pyk2 tyrosines 402 and 580 did not require Ca(2+) influx, ZAP-70 activation, actin cytoskeleton rearrangement, or PI3K function. Tyrosine T cell receptor beta variable 20/OR9-2 (non-functional) Homo sapiens