The protein encoded by this gene is the CD3-gamma polypeptide, which together with CD3-epsilon, -delta and -zeta, and the T-cell receptor alpha/beta and gamma/delta heterodimers, forms the T-cell receptor-CD3 complex. This complex plays an important role
Gene ontology (GO)Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
Part of the TCR-CD3 complex present on T-lymphocyte cell surface that plays an essential role in adaptive immune response. When antigen presenting cells (APCs) activate T-cell receptor (TCR), TCR-mediated signals are transmitted across the cell
Evidence Score:★☆☆☆☆ Gene-disease association found in Text Mining only★★☆☆☆ Found in Text Mining and Unknown/Other Associations★★★☆☆ Reported in Unknown/Other Associations across ≥2 Sources★★★★☆ ClinVar: Pathogenic/Likely Pathogenic (<5 Variants)★★★★★ ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
CausalDiseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name
Clinical Significance
dbSNP ID
RCV Accession
Evidence Score
Combined immunodeficiency due to CD3gamma deficiency
Unknown / Other Associations
ClinVar entries with uncertain/conflicting evidence, and associations from other databases
(OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
["Th1 and Th2 cell differentiation","Th17 cell differentiation","T cell receptor signaling pathway","Human T-cell leukemia virus 1 infection","PD-L1 expression and PD-1 checkpoint pathway in cancer","Downstream TCR signaling","Phosphorylation of CD3 and TCR zeta chains","PD-1 signaling","Generation of second messenger molecules","Translocation of ZAP-70 to Immunological synapse"]
["Th1 and Th2 cell differentiation","Th17 cell differentiation","T cell receptor signaling pathway","PD-L1 expression and PD-1 checkpoint pathway in cancer","Generation of second messenger molecules","Translocation of ZAP-70 to Immunological synapse"]
Diseases Linked via Similar GenesDiseases curated for genes most similar to CD3G (see Related Genes above), that are NOT already directly curated for CD3G itself -- a lead worth checking, not a confirmed association.