CSK Protein Kinase Activation Pathway

Preferred Label : CSK Protein Kinase Activation Pathway;

NCIt related terms : Activation of Csk by cAMP-dependent Protein Kinase Inhibits Signaling through the T Cell Receptor;

Alternative definition : BIOCARTA: 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 Src 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. (This definition may be outdated - see the DesignNote.);

NCIt note : The BIOCARTA Definition (ALT_DEFINITION) for this pathway concept was provided by BioCarta. This property was not created by, nor is it maintained by the NCI Thesaurus staff. Additionally, BioCarta is no longer updating its pathway data; thus, the BIOCARTA Definition might be outdated or inaccurate. Please see the Terms and Conditions for Use at http://www.biocarta.com/.;

Biocarta ID : h_CSKPathway;

Details

Origin ID

C39038;

UMLS CUI

C1511457;

Semantic type(s)
- Molecular Function [UMLS semantic type]
has_gene_product_element
- CREB-Binding Protein [NCIt concept]
- Guanine Nucleotide-Binding Protein G(s) Subunit Alpha Isoforms Short [NCIt concept]
- Guanine Nucleotide-Binding Protein G(s) Subunit Alpha Isoforms XLas [NCIt concept]
- HLA Class II Histocompatibility Antigen, DQ Beta 1 Chain [NCIt concept]
- HLA Class II Histocompatibility Antigen, DR Alpha Chain [NCIt concept]
- Receptor-Type Tyrosine-Protein Phosphatase C [NCIt concept]
- T-Cell Surface Glycoprotein CD3 Delta Chain [NCIt concept]
- T-Cell Surface Glycoprotein CD3 Epsilon Chain [NCIt concept]
- T-Cell Surface Glycoprotein CD3 Gamma Chain [NCIt concept]
- T-Cell Surface Glycoprotein CD3 Zeta Chain [NCIt concept]
- T-Cell Surface Glycoprotein CD4 [NCIt concept]
- Tyrosine-Protein Kinase CSK [NCIt concept]
- Tyrosine-Protein Kinase Lck [NCIt concept]
- Tyrosine-Protein Kinase ZAP-70 [NCIt concept]
- cAMP-Dependent Protein Kinase Catalytic Subunit Beta [NCIt concept]
- cAMP-Dependent Protein Kinase Catalytic Subunit Gamma [NCIt concept]
- cAMP-Dependent Protein Kinase Type I-Alpha Regulatory Subunit [NCIt concept]
- cAMP-Dependent Protein Kinase Type II-Alpha Regulatory Subunit [NCIt concept]
pathway_has_gene_element
- CD247 wt Allele [NCIt concept]
- CD3D wt Allele [NCIt concept]
- CD3E wt Allele [NCIt concept]
- CD3G wt Allele [NCIt concept]
- CD4 wt Allele [NCIt concept]
- CREBBP wt Allele [NCIt concept]
- CSK wt Allele [NCIt concept]
- GNAS wt Allele [NCIt concept]
- HLA-DQB1 wt Allele [NCIt concept]
- HLA-DRA wt Allele [NCIt concept]
- LCK wt Allele [NCIt concept]
- PRKACB wt Allele [NCIt concept]
- PRKACG wt Allele [NCIt concept]
- PRKAR1A wt Allele [NCIt concept]
- PRKAR2A wt Allele [NCIt concept]
- PTPRC wt Allele [NCIt concept]
- ZAP70 wt Allele [NCIt concept]

Keyword's position in hierarchy(ies) :

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