- UCHT1 (See other available formats)
- Regulatory Status
- III 471
- Other Names
- T3, CD3ε
- Mouse IgG1, κ
- Ave. Rating
- Submit a Review
- Product Citations
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 cells, NKT 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
- Human, Cross-Reactivity: Chimpanzee
- Antibody Type
- Host Species
- 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative. Endotoxin level is <0.01 EU/µg of the protein (<0.001 ng/µg of the protein) as determined by the LAL test.
- The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
- The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. 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. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
FC - Quality tested
CyTOF® - Verified
IHC-F, IP, Activ, WB - 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 ≤ 2.0 µg per million cells in 100 µl volume or 100 µl of whole blood. It is recommended that the reagent be titrated for optimal performance for each application.
- Application Notes
Additional reported applications (for the relevant formats) include: immunohistochemical staining of acetone-fixed frozen sections4,6,7 and formalin-fixed paraffin-embedded sections11, immunoprecipitation1, activation of T cells2,3,5, and Western blotting9. The LEAF™ purified antibody (Endotoxin < 0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 300413, 300414, and 300432). For highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 300437, 300438, 300465, 300466, 300473, 300474) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin < 0.01 EU/µg).
(PubMed link indicates BioLegend citation)
- Salmeron A, et al. 1991. J. Immunol. 147:3047. (IP)
- Graves J, et al. 1991. J. Immunol. 146:2102. (Activ)
- Lafont V, et al. 2000. J. Biol. Chem. 275:19282. (Activ)
- Ryschich E, et al. 2003. Tissue Antigens 62:48. (IHC)
- Thompson AG, et al. 2004. J. Immunol. 173:1671. (Activ)
- Sakkas LI, et al. 1998. Clin. Diagn. Lab. Immun. 5:430. (IHC)
- Mack CL, et al. 2004. Pediatr. Res. 56:79. (IHC)
- Thakral D, et al. 2008. J. Immunol. 180:7431. (FC) PubMed
- Van Dongen JJM, et al. 1988. Blood 71:603. (WB)
- Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC)
- Pollard, K. et al. 1987. J. Histochem. Cytochem. 35:1329. (IHC)
- Luckashenak N, et al. 2013. J. Immunol. 190:27. PubMed
- Laurent AJ, et al. 2014. PLoS One. 9:103683. PubMed
- Li J, et al. 2015. Cancer Res. 75:508. PubMed
- Stoeckius M, et al. 2017. Nat. Methods. 14:865-868. (PG)
- Product Citations
AB_11147760 (BioLegend Cat. No. 300437)
AB_11146991 (BioLegend Cat. No. 300438)
AB_2616677 (BioLegend Cat. No. 300465)
AB_2616678 (BioLegend Cat. No. 300466)
AB_2749887 (BioLegend Cat. No. 300473)
AB_2749892 (BioLegend Cat. No. 300474)
- Ig superfamily, with the subunits of CD3γ, CD3δ, CD3ζ (CD247) and TCR (α/β or γ/δ) forms 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
- Immunology, Innate Immunity
- Molecular Family
- CD Molecules, TCRs
- Antigen References
1. Barclay N, et al. 1993. The Leucocyte FactsBook. Academic Press. San Diego.
2. Beverly P, et al. 1981. Eur. J. Immunol. 11:329.
3. Lanier L, et al. 1986. J. Immunol. 137:2501-2507.
- Gene ID
- 916 View all products for this Gene ID
- Specificity (DOES NOT SHOW ON TDS):
- Specificity Alt (DOES NOT SHOW ON TDS):
- View information about CD3 on UniProt.org
- Do you guarantee that your antibodies are totally pathogen free?
BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
- Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
- Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
No, BioLegend does not test for pathogens in-house unless otherwise indicated. However, we can recommend an outside vendor to perform this testing as needed.
- Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.
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