Biolegend, 100301, Purified anti-mouse CD3ε Antibody, 50μg

CD3ε is a 20 kD transmembrane protein, also known as CD3 or T3. It is a member of the Ig superfamily and primarily expressed on T cells, NK-T cells, and at different levels on thymocytes during T cell differentiation. CD3ε forms a TCR complex by associating with the CD3δ, γ and ζ chains, as well as the TCR α/β or γ/δ chains. CD3 plays a critical role in TCR signal transduction, T cell activation, and antigen recognition by binding the peptide/MHC antigen complex.
50μg
Verified Reactivity: Mouse
Antibody Type: Monoclonal
Host Species: Armenian Hamster
Immunogen: H-2Kb-specific mouse cytotoxic T lymphocyte clone BM10-37
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation: The antibody was purified by affinity chromatography.
Concentration: 0.5 mg/ml
Storage & Handling: The CD3ε antibody solution should be stored undiluted between 2°C and 8°C.
Application: FC - Quality tested IHC-F - Verified IP, Activ, Block, WB, ICC - Reported in the literature, not verified in house
Recommended Usage: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 1.0 µg per million cells in 100 µl volume. For immunohistochemical staining on frozen tissue sections, the suggested use of this reagent is 5.0 - 10 µg per ml. It is recommended that the reagent be titrated for optimal performance for each application.
Application Notes: Clone 145-2C11 is useful for in vitro blocking of target-specific CTL-mediated cell lysis1, as well as T cell activation assays, inducing proliferation and cytokine production1,2,7,12,16. It also induces apoptosis in immature thymocytes32, and in vivo T cell depletion8-10. Additional reported applications (for relevant formats of this clone) include: immunoprecipitation1, immunohistochemical staining14,15 of acetone-fixed frozen sections and zinc-fixed paraffin-embedded sections, Western blotting4, complement-mediated cytotoxicity6, in vitro and in vivo stimulation of T cells1,2,7,12,16, immunofluorescent staining5, and in vivo T cell depletion8-10. The 145-2C11 antibody has been reported to block the binding of 17A2 antibody to CD3 epsilon-specific T cells11. Clone 145-2C11 is not recommended for formalin-fixed paraffin embedded sections. The LEAF™ purified antibody (Endotoxin <0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 100314). For in vivo studies or highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 100340) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin <0.01 EU/µg).
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RRID: AB_312666 (BioLegend Cat. No. 100301) AB_312667 (BioLegend Cat. No. 100302)
Structure: Ig superfamily, forms CD3/TCR complex with CD3δ, γ and ζ subunits and TCR (α/β and γ/δ), 20 kD
Distribution: Thymocytes (differentiation dependent), mature T cells, NK-T cells
Function: TCR signal transduction, T cell activation, antigen recognition
Ligand/Receptor: Peptide antigen/MHC-complex
Cell Type: NKT cells, T cells, Thymocytes, Tregs
Biology Area: Immunology
Molecular Family: CD Molecules, TCRs
Antigen References: 1. Barclay A, et al. 1997. The Leukocyte Antigen FactsBook Academic Press. 2. Davis MM. 1990. Annu. Rev. Biochem. 59:475. 3. Weiss A, et al. 1994. Cell 76:263.
Gene ID: 12501
UniProt: View information about CD3epsilon on UniProt.org
Clone: 145-2C11
Regulatory Status: RUO
Other Names: CD3ε, T3, CD3
Isotype: Armenian Hamster IgG