Systematic name M10765
Brief description Lck and Fyn tyrosine kinases in initiation of TCR Activation
Full description or abstract T cell activation is initiated by recognition of antigen by the T cell receptor (TCR) in the context of Class II MHC on an antigen-presenting cell. The T cell receptor contains multiple subunits and interacts with several factors to transduce antigen-stimulated T cell activation. One of the key steps that initiates receptor activation is the tyrosine phosphorylation of TCR subunits by the src family protein kinases Lck and Fyn. T cell receptor phosphorylated by Lck and Fyn recruits the ZAP-70 protein kinase to the receptor complex, which becomes activated and stimulates downstream pathways like the Map kinase cascade. The CD45 protein tyrosine phosphatase activates Lck and Fyn by dephosphorylating these proteins and is required for TCR activation. Association of the CD4 coreceptor with Lck may also be involved in Lck activation.
Collection C2: curated gene sets
      CP:BIOCARTA: BioCarta gene sets
Source publication  
Exact source  
Related gene sets  
External links
Organism Homo sapiens
Contributed by BioCarta
Source platform EntrezGeneIds
Dataset references  
Download gene set format: grp | text | gmt | gmx | xml
Compute overlaps (show collections to investigate for overlap with this gene set)
Compendia expression profiles Human tissue compendium (Novartis)
NCI-60 cell lines (National Cancer Institute)
Advanced query Further investigate these 13 genes
Gene families Categorize these 13 genes by gene family
Show members (show 13 members mapped to 13 genes)
Version history  

See MSigDB license terms here. Please note that certain gene sets have special access terms.