loading...| Preferred Name |
TCR signaling |
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| Synonyms |
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| Definitions |
The TCR is a multisubunit complex that consists of clonotypic alpha/beta chains noncovalently associated with the invariant CD3 delta/epsilon/gamma and TCR zeta chains. T cell activation by antigen presenting cells (APCs) results in the activation of protein tyrosine kinases (PTKs) that associate with CD3 and TCR zeta subunits and the co-receptor CD4. Members of the Src kinases (Lck), Syk kinases (ZAP-70), Tec (Itk) and Csk families of nonreceptor PTKs play a crucial role in T cell activation. Activation of PTKs following TCR engagement results in the recruitment and tyrosine phosphorylation of enzymes such as phospholipase C gamma1 and Vav as well as critical adaptor proteins such as LAT, SLP-76 and Gads. These proximal activation leads to reorganization of the cytoskeleton as well as transcription activation of multiple genes leading to T lymphocyte proliferation, differentiation and/or effector function. Reviewed: Trowsdale, J, 2008-02-26 12:02:59 Authored: Rudd, C.E., de Bono, B, Garapati, P V, 2008-01-24 15:53:10 |
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| ID |
http://purl.obolibrary.org/obo/HINO_0026233 |
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| comment |
The TCR is a multisubunit complex that consists of clonotypic alpha/beta chains noncovalently associated with the invariant CD3 delta/epsilon/gamma and TCR zeta chains. T cell activation by antigen presenting cells (APCs) results in the activation of protein tyrosine kinases (PTKs) that associate with CD3 and TCR zeta subunits and the co-receptor CD4. Members of the Src kinases (Lck), Syk kinases (ZAP-70), Tec (Itk) and Csk families of nonreceptor PTKs play a crucial role in T cell activation. Activation of PTKs following TCR engagement results in the recruitment and tyrosine phosphorylation of enzymes such as phospholipase C gamma1 and Vav as well as critical adaptor proteins such as LAT, SLP-76 and Gads. These proximal activation leads to reorganization of the cytoskeleton as well as transcription activation of multiple genes leading to T lymphocyte proliferation, differentiation and/or effector function. Reviewed: Trowsdale, J, 2008-02-26 12:02:59 Authored: Rudd, C.E., de Bono, B, Garapati, P V, 2008-01-24 15:53:10 |
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| definition source |
Pubmed10375551 Reactome, http://www.reactome.org Pubmed9989491 Pubmed12876557 |
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| label |
TCR signaling |
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| located_in | ||
| prefixIRI |
HINO:0026233 |
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| prefLabel |
TCR signaling |
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| seeAlso |
ReactomeREACT_12526 Reactome Database ID Release 43202403 GENE ONTOLOGYGO:0050852 |
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| subClassOf | ||
| has_part |
http://purl.obolibrary.org/obo/HINO_0026235 http://purl.obolibrary.org/obo/HINO_0026237 |