CD3 complex

E802043

The CD3 complex is a multi-subunit protein complex associated with the T-cell receptor that is essential for T-cell activation and signal transduction in the immune system.

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Statements (49)

Predicate Object
instanceOf T-cell surface receptor component
protein complex
abbreviatedAs CD3 NERFINISHED
associatedWith T-cell receptor
associatedWithDisease T-cell immunodeficiency
severe combined immunodeficiency when mutated
binds T-cell receptor alpha chain
T-cell receptor beta chain
containsMotif immunoreceptor tyrosine-based activation motif
encodedBy CD247 gene NERFINISHED
CD3D gene NERFINISHED
CD3E gene NERFINISHED
CD3G gene NERFINISHED
essentialFor T-cell activation
T-cell signal transduction
expressedOn mature T cells
most NKT cells
thymocytes
hasComponentType type I transmembrane protein
hasCytoplasmicDomainFunction signal transduction
hasSubunit CD3γ chain NERFINISHED
CD3δ chain NERFINISHED
CD3ε chain NERFINISHED
CD3ζ chain
CD3η chain
hasTopology cytoplasmic tail with ITAMs
extracellular immunoglobulin-like domain
single transmembrane helix
involvedIn T-cell receptor signaling pathway NERFINISHED
T-cell selection in thymus
adaptive immune response
thymocyte development
locatedIn plasma membrane of T cells
orthologFoundIn human
mouse
rat
partOf T-cell receptor–CD3 complex NERFINISHED
phosphorylatedBy Src family kinases Lck and Fyn NERFINISHED
playsRoleIn T-cell proliferation
antigen-specific T-cell responses
cytokine production by T cells
recognizedBy anti-CD3 monoclonal antibodies
recruits ZAP-70 tyrosine kinase NERFINISHED
requiredFor T-cell receptor internalization
surface expression of T-cell receptor
targetOf OKT3 antibody
usedAsMarkerFor T lymphocytes NERFINISHED
usedIn flow cytometry for T-cell enumeration
immunohistochemistry for T-cell identification

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

CD4+ T cells express CD3 complex