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Safety Data Sheet (SDS) Purified Anti-T-bet Antibody     Product Data Sheet (PDF)    
Purified Anti-T-bet Antibody
3824005 25 µg $90.00       
3824010 100 µg $180.00       
Clone: 4B10
Isotype: Mouse IgG1, κ
Reactivity: Human, Mouse
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 antibody solution should be stored undiluted between 2°C and 8°C.

WB, ICFC - Quality tested
IF, IP - Reported in the literature

Application Notes:

Additional reported applications (for the relevant formats) include: immunoprecipitation2 and immunofluorescence microscopy3.

NOTE: For flow cytometric staining with this clone, True-Nuclear™ Transcription Factor Buffer Set offers improved staining and is highly recommended over the Foxp3 Fix/Perm Buffer Set and the Nuclear Factor Fixation and Permeabilization Buffer Set .

Recommended Usage:

Each lot of this antibody is quality control tested by True-Nuclear™ Transcription Factor Staining Protocol. For Western blotting, the suggested use is 1 to 2 ug per ml. For flow cytometric staining, the suggested use of this reagent is 1.0 µg per million cells in a staining volume of 100 µl. It is recommended that the reagent be titrated for optimal performance for each application.

Application References:

1. Szabo SJ, et al. 2000. Cell 100:655. (ICFC, WB)
2. Hwang ES, et al. 2005. J. Exp. Med. 202:1289. (ICFC, WB, IP)
3. Neurath MF, et al. 2002. J. Exp. Med. 195:1129. (IF)
4. Hsieh CY, et al. 2012. J Pharmacol Exp. 343:125. PubMed.

Total cell lysate from PBMC

Total cell lysate from PBMC (lane 1, 15 µg) and PBMC treated with 5 µg/mL CD3 and 2 µg/mL CD28 (lane 2, 15 µg) were resolved by electrophoresis (4-12% Bis-Tris), transferred to nitrocellulose, and probed with purified anti-T-bet antibody (clone 4B10). Proteins were visualized using an HRP Goat anti-mouse IgG Antibody and chemiluminescence detection. Direct-Blot™ HRP anti-β-actin antibody (clone 2F1-1) was used as a loading control.

Human peripheral blood lymphocytes were

Human peripheral blood lymphocytes were surface stained with CD3 (clone OKT3) APC and then treated with True-Nuclear™ Transcription Factor Buffer Set. The cells were then stained with purified T-bet (clone 4B10) followed by anti-mouse IgG1 PE.


T-bet, also known as T-box transcription factor T-bet, is considered to be a "master regulator" of Th1 lymphoid development controlling the production of the cytokine IFN-γ. T-bet is widely expressed in hematopoietic cells including stem cells, NK cells, B cells, and T cells. T-bet is critical for the control of microbial pathogens, and knockout animals show multiple physiologic and inflammatory features characteristic of asthma. T-bet expression is optimally observed after IL-12 stimulation and can be suppressed by addition of the Th2 cytokine IL-4 or neutralization of IL-12.

Other Names: T-box expressed in T cells, T box 21, TBLYM
Structure: T-box transcription factor, approximately 58 kD.
Distribution: Nuclear; expressed in T cells, hematopoietic stem cells, NK cells, B cells, lung, spleen.
Function: Th1-specific T-box transcription factor controlling expression of the hallmark Th1 cytokine, interferon gamma (IFN-γ). T-bet expression is critical for the control of microbial pathogens.
Antigen References:

1. Szabo SJ, et al. 2000. Cell 100:655.
2. Szabo SJ, et al. 2002. Science 295:338.
3. Finotto S, et al. 2002. Science 295:336.
4. Mullen AC, et al. 2001. Science 292:1907.