- 145-2C11 (See other available formats)
- Regulatory Status
- Other Names
- CD3ε, T3, CD3
- Armenian Hamster IgG
- Ave. Rating
- Submit a Review
- Product Citations
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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.Product Details
- Antibody Type
- Host Species
- Armenian Hamster
- H-2Kb-specific mouse cytotoxic T lymphocyte clone BM10-37
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 647 under optimal conditions.
- 0.5 mg/ml
- 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
IHC-F, 3D IHC - Verified
- 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 ≤ 0.25 µg per million cells in 100 µl volume. For immunohistochemistry on frozen tissue sections, a concentration range of 5.0 - 10.0 µg/ml is suggested. For 3D immunohistochemistry on formalin-fixed tissues, a concentration of 5.0 µg/mL is suggested. It is recommended that the reagent be titrated for optimal performance for each application.
* Alexa Fluor® 647 has a maximum emission of 668 nm when it is excited at 633nm / 635nm.
Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.
View full statement regarding label licenses
- Excitation Laser
Red Laser (633 nm)
- 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).
(PubMed link indicates BioLegend citation)
- Leo O, et al. 1987. P. Natl. Acad. Sci. USA 84:1374. (IP, Activ, Block)
- Kruisbeek AM, et al. 1991. In Current Protocols in Immunology. 3.12.1. (Activ)
- Duke RC, et al. 1995. Current Protocols in Immunology. 3.17.1.
- Salvadori S, et al. 1994. J. Immunol. 153:5176. (WB)
- Payer E, et al. 1991. J. Immunol. 146:2536. (IF)
- Jacobs H, et al. 1994. Eur. J. Immunol. 24:934. (CMCD)
- Vossen ACTM, et al. 1995. Eur. J. Immunol. 25:1492. (Activ)
- Henrickson M, et al. 1995. Transplantation 60:828. (Deplete)
- Kinnaert P, et al. 1996. Transpl. Int. 9:386. (Deplete)
- Han WR, et al. 1999. Transpl. Immunol. 7:207. (Deplete)
- Miescher GC, et al. 1989. Immunol. Lett. 23:113. (Block)
- Terrazas LI, et al. 2005. Intl. J. Parasitology. 35:1349. (Activ)
- Ko SY, et al. 2005. J. Immunol. 175:3309.
- Podd BS, et al. 2006. J. Immunol. 176:6532. (IHC-F)
- Tilley SL, et al. 2007. J. Immunol. 178:3208. (IHC-F)
- Wang W, et al. 2007. J. Immunol. 178:4885. (Activ)
- Xiao S, et al. 2007. J. Exp. Med. 204:1691.
- Chappaz S, et al. 2007. Blood doi:10.1182/blood-2007-02-074245. (FC) PubMed.
- Curtsinger JM, et al.2005. J. Immunol. 175:4392. PubMed
- Guo Y, et al. 2008. Blood 112:480. PubMed
- Kenna TJ, et al. 2008. Blood 111:2091.
- Perchonock CE, et al. 2007. J. Immunol. 179:1768. PubMed
- Perchonock GE, et al. 2006. Mol. Cell. Biol. 26:6005. PubMed
- Kanaya T, et al. 2008. Am. J. Physiol. Gastrointest. Liver Physiol. 295:G273. PubMed
- de Koning BA, et al. 2006. Int. Immunol. 18:941. PubMed
- Schulteis RD, et al. 2008. Blood 295:G273. PubMed
- Qi Q, et al. 2009. Blood 114:564. PubMed
- Helmersson S, et al. 2013. Am J Pathol. 9440:123. Pubmed
- Wu S, et al. 2014. Clin Vaccine Immunol. 21:156. PubMed
- Yan J, et al. 2014. Vaccine. 32:2833. PubMed
- Guiterrez DA, et al. 2014. Diaebetes. 63:3827. PubMed
- Shi YF, et al. 1991. J Immunol. 146:3340. (Apop)
- Product Citations
AB_492861 (BioLegend Cat. No. 100324)
AB_389322 (BioLegend Cat. No. 100322)
- Ig superfamily, forms CD3/TCR complex with CD3δ, γ and ζ subunits and TCR (α/β and γ/δ), 20 kD
Thymocytes (differentiation dependent), mature T cells, NK-T cells
- TCR signal transduction, T cell activation, antigen recognition
- Peptide antigen/MHC-complex
- Cell Type
- NKT cells, T cells, Thymocytes, Tregs
- Biology Area
- 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 View all products for this Gene ID
- Specificity (DOES NOT SHOW ON TDS):
- Specificity Alt (DOES NOT SHOW ON TDS):
- View information about CD3epsilon on UniProt.org
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