Description
Product Usage Information
Immunohistochemistry (Paraffin): 1:100 - 1:400
Storage
Supplied in PBS (pH 7.2), less than 0.1% sodium azide, and 2 mg/mL BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze.
Protocol
Available protocols: Immunohistochemistry (Paraffin)
Specificity / Sensitivity
CD3 epsilon (D7A6E™) Rabbit Monoclonal Antibody (Alexa Fluor
Species Reactivity: Human, Monkey
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Glu178 of human CD3ε protein.
Background
When T cells encounter antigens via the T cell receptor (TCR), information about the quantity and quality of antigens is relayed to the intracellular signal transduction machinery (1). This activation process depends mainly on CD3 (Cluster of Differentiation 3), a multiunit protein complex that directly associates with the TCR. 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) (2). Engagement of the 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 the p85 subunit of PI-3 kinase (3,4). TCR ligation also induces a conformational change in CD3ε, such that a proline region is exposed and then associates with the adaptor protein Nck (5).
Alternate Names
CD3-epsilon; CD3E; CD3E antigen, epsilon polypeptide; CD3e antigen, epsilon polypeptide (TiT3 complex); CD3e molecule; CD3e molecule, epsilon (CD3-TCR complex); CD3epsilon; FLJ18683; IMD18; T-cell antigen receptor complex, epsilon subunit of T3; T-cell surface antigen T3/Leu-4 epsilon chain; T-cell surface glycoprotein CD3 epsilon chain; T3E; TCRE
