CD3 epsilon Recombinant Rabbit Monoclonal Antibody [SY0239] (ET1607-29)

UNIPROT #

P07766

PROTEIN NAME

CD3 epsilon

SYNONYMS

CD3 epsilon antibody;CD3e antibody;CD3e antigen epsilon polypeptide (TiT3 complex) antibody;CD3E antigen epsilon polypeptide antibody;CD3E antigen, epsilon subunit antibody;CD3e molecule epsilon antibody;CD3e molecule, epsilon (CD3 TCR complex) antibody;CD3e molecule, epsilon (CD3-TCR complex) antibody;CD3E_HUMAN antibody;IMD18 antibody;T cell antigen receptor complex epsilon subunit of T3 antibody;T cell surface antigen T3/Leu 4 epsilon chain antibody;T cell surface glycoprotein CD3 epsilon chain antibody;T-cell surface antigen T3/Leu-4 epsilon chain antibody;T-cell surface glycoprotein CD3 epsilon chain antibody;T3E antibody;TCRE antibody

POST-TRANSLATIONAL MODIFICATION

Phosphorylated on Tyr residues after T-cell receptor triggering by LCK in association with CD4/CD8.

SUBCELLULAR LOCATION

Cell membrane.

FUNCTION

The T cell antigen receptor (TCR) recognizes foreign antigens and translates such recognition events into intracellular signals that elicit a change in the cell from a dormant to an activated state. Much of this signaling process can be attributed to a multisubunit complex of proteins that associates directly with the TCR. This complex has been designated CD3 (cluster of differentiation 3). CD3 is composed of four polypeptides: ζ, γ, ε and δ. Each of these polypeptides contains at least one immunoreceptor tyrosine-based activation motif (ITAM). Engagement of TCR complex with foreign antigens induces tyrosine phosphorylation in the ITAM motifs and phosphorylated ITAMs function as docking sites for signaling molecules such as ZAP-70 and p85 subunit of PI-3 kinase. TCR ligation also induces a conformational change in CD3ε, such that a proline region is exposed and then associates with the adaptor protein Nck.