Anti-CD3 Biotine

CD3 complex is crucial in transducing antigen-recognition signals into the cytoplasm of T cells and in regulating the cell surface expression of the TCR complex. T cell activation through the antigen receptor (TCR) involves the cytoplasmic tails of the CD3 subunits CD3 gamma, CD3 delta, CD3 epsilon and CD3 zeta. These CD3 subunits are structurally related members of the immunoglobulins super family encoded by closely linked genes on human chromosome 11. The CD3 components have long cytoplasmic tails that associate with cytoplasmic signal transduction molecules. This association is mediated at least in part by a double tyrosine-based motif present in a single copy in the CD3 subunits. CD3 may play a role in TCR-induced growth arrest, cell survival and proliferation. The CD3 antigen is present on 68-82% of normal peripheral blood lymphocytes, 65-85% of thymocytes and Purkynje cells in the cerebellum. It is never expressed on B or NK cells. Decreased percentages of T lymphocytes may be observed in some autoimmune diseases.

Human

CD3

TB3

ICC, FC (QC tested)

1 mg/mL

Biotin

Phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide

*Khvastunova AN, Kuznetsova SA, Al-Radi LS, Vylegzhanina AV, Zakirova AO, Fedyanina OS, Filatov AV, Vorobjev IA, Ataullakhanov F: Anti-CD antibody microarray for human leukocyte morphology examination allows analyzing rare cell populations and suggesting preliminary diagnosis in leukemia. Sci Rep. 2015 Jul 27;5:12573., URL: https://pubmed.ncbi.nlm.nih.gov/26212756/, *Kužílková D, Puñet-Ortiz J, Aui PM, Fernández J, Fišer K, Engel P, van Zelm MC, Kalina T: Standardization of workflow and flow cytometry panels for quantitative expression profiling of surface antigens on blood leukocyte subsets: An HCDM CDMaps initiative. Front Immunol. 2022 Feb 11:13:827898. , URL: https://pubmed.ncbi.nlm.nih.gov/35222411/

*Huang Y, Wange RL: T cell receptor signaling: beyond complex complexes. J Biol Chem. 2004 Jul 9;279 (28) :28827-30., URL: https://pubmed.ncbi.nlm.nih.gov/15084594/, *Alarcón B, Swamy M, van Santen HM, Schamel WW: T-cell antigen-receptor stoichiometry: pre-clustering for sensitivity. EMBO Rep. 2006 May;7 (5) :490-5., URL: https://pubmed.ncbi.nlm.nih.gov/16670682/, *Kuhns MS, Davis MM, Garcia KC: Deconstructing the form and function of the TCR/CD3 complex. Immunity. 2006 Feb;24 (2) :133-9., URL: https://pubmed.ncbi.nlm.nih.gov/16473826/

Store at 2-8°C. Do not freeze.

The mouse monoclonal antibody TB3 recognizes an extracellular epitope on CD3 antigen of the TCR/CD3 complex on mature human T cells. This antibody has superior binding than the clone TB2.

Flow cytometry: Recommended dilution: 1-5 μg/ml.

Mouse IgG2b kappa