- OKT3 (See other available formats)
- Regulatory Status
- HCDM listed
- Other Names
- T3, CD3ε
- Mouse IgG2a, κ
- Ave. Rating
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- Product Citations
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CD3ε is a 20 kD chain of the CD3/T cell receptor (TCR) complex, which is composed of two CD3ε, one CD3γ, one CD3δ, one CD3ζ (CD247), and a T cell receptor (α/β or γ/δ) heterodimer. It is found on all mature T lymphocytes, NK T cells, and some thymocytes. CD3, also known as T3, is a member of the immunoglobulin superfamily that plays a role in antigen recognition, signal transduction, and T cell activation.Product Details
- Antibody Type
- Host Species
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA).
- The antibody was purified by affinity chromatography and conjugated with Brilliant Violet 510™ under optimal conditions.
- Lot-specific (please contact technical support for concentration and total µg amount, or use our Lookup tool if you have a lot number.)
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
FC - Quality tested
- 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 5 µl per million cells in 100 µl staining volume or 5 µl per 100 µl of whole blood.
Brilliant Violet 510™ excites at 405 nm and emits at 510 nm. The bandpass filter 510/50 nm is recommended for detection, although filter optimization may be required depending on other fluorophores used. Be sure to verify that your cytometer configuration and software setup are appropriate for detecting this channel. Refer to your instrument manual or manufacturer for support. Brilliant Violet 510™ is a trademark of Sirigen Group Ltd.
Learn more about Brilliant Violet™.
This product is subject to proprietary rights of Sirigen Inc. and is made and sold under license from Sirigen Inc. The purchase of this product conveys to the buyer a non-transferable right to use the purchased product for research purposes only. This product may not be resold or incorporated in any manner into another product for resale. Any use for therapeutics or diagnostics is strictly prohibited. This product is covered by U.S. Patent(s), pending patent applications and foreign equivalents.
- Excitation Laser
Violet Laser (405 nm)
- Application Notes
The OKT3 monoclonal antibody reacts with an epitope on the epsilon-subunit within the human CD3 complex.
Clone OKT3 can block the binding of clones SK7 and UCHT1.4 The OKT3 antibody is able to induce T cell activation. Additional reported applications (for the relevant formats) include: immunohistochemical staining of acetone-fixed frozen sections and activation of T cells. The LEAF™ purified antibody (Endotoxin <0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 317304). For highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 317326) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin <0.01 EU/µg).
- Application References
- Schlossman S, et al. Eds. 1995. Leucocyte Typing V. Oxford University Press. New York.
- Knapp W. 1989. Leucocyte Typing IV. Oxford University Press New York.
- Barclay N, et al. 1997. The Leucocyte Antigen Facts Book. Academic Press Inc. San Diego.
- Li B, et al. 2005. Immunology 116:487.
- Jeong HY, et al. 2008. J. Leuckocyte Biol. 83:755. PubMed
- Alter G, et al. 2008. J. Virol. 82:9668. PubMed
- Manevich-Mendelson E, et al. 2009. Blood 114:2344. PubMed
- Pinto JP, et al. 2010. Immunology. 130:217. PubMed
- Biggs MJ, et al. 2011. J. R. Soc. Interface. 8:1462. PubMed
- Product Citations
AB_2561376 (BioLegend Cat. No. 317331)
AB_2561943 (BioLegend Cat. No. 317332)
- Ig superfamily, the subunits CD3γ, CD3δ, CD3ζ (CD247) and TCR (α/β or γ/δ) form the CD3/TCR complex, 20 kD
Mature T and NK T cells, thymocyte differentiation
- Antigen recognition, signal transduction, T cell activation
- Peptide antigen bound to MHC
- Cell Type
- NKT cells, T cells, Thymocytes, Tregs
- Biology Area
- Molecular Family
- CD Molecules
- Antigen References
- Barclay N, et al. 1993. The Leucocyte FactsBook. Academic Press. San Diego.
- Beverly P, et al. 1981. Eur. J. Immunol. 11:329.
- Lanier L, et al. 1986. J. Immunol. 137:2501.
- Gene ID
- 916 View all products for this Gene ID
- View information about CD3 on UniProt.org
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