Human Gene Set: BIOCARTA_CSK_PATHWAY

For the Mouse gene set with the same name, see BIOCARTA_CSK_PATHWAY

Standard name BIOCARTA_CSK_PATHWAY
Systematic name M6327
Brief description Activation of Csk by cAMP-dependent Protein Kinase Inhibits Signaling through the T Cell Receptor
Full description or abstract Interaction of T cell receptor with specific antigen in the context of MHC II activates a signal transduction pathway that leads to T cell activation. In the T cell receptor signaling pathway, the src family kinases Lck and Fyn are activated to phosphorylate proteins in the T cell receptor complex which recruit and activate the ZAP70 kinase. The activation of ZAP70 phosphorylates downstream targets that activate MAP kinase pathways and cause T cell activation. The CD45 phosphorylase also plays a role in T cell receptor signaling, dephosphorylated Lck and Fyn to activate them. Other factors modulate T cell receptor activation. Csk (COOH-terminal Srk kinase) phosphorylates Lck and deactivates it, opposing the action of CD45. The phosphorylation of Lck by Csk inhibits T cell receptor signaling and inhibits T cell activation. Csk activity is regulated in T cells by PKA, the cAMP-dependent protein kinase activated by the second messenger cAMP. The activity of Csk also appears to depend on other factors such as CBP, which recruits Csk to the plasma membrane in lipid rafts where other signaling factors such the T cell receptor complex are localized. CBP also directly activates Csk.
Collection C2: Curated
      CP: Canonical Pathways
            CP:BIOCARTA: BioCarta Pathways
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External links https://data.broadinstitute.org/gsea-msigdb/msigdb/biocarta/human/h_cskPathway.gif
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Source species Homo sapiens
Contributed by BioCarta
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identifier namespace		 Human_RefSeq
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Version history 7.0: Changed members. Upgraded to final version of Biocarta.

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