• Species Reactivity

  Human

• Specificity

  Detects human T‑bet/TBX21 in direct ELISAs.

• Source

  Monoclonal Mouse IgG    ₁ Clone # 525831

• Purification

  Protein A or G purified from cell culture supernatant

• Immunogen

  E. coli-derived recombinant human T‑bet/TBX21    
  Glu326-Asn535    
  Accession # Q9UL17

• Formulation

  Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

• Label

  Alexa Fluor 750

Applications

• Recommended    
  Concentration

  Sample

• Intracellular Staining by Flow Cytometry

  0.25-1 µg/10    ⁶ cells

  Human peripheral blood mononuclear cells (PBMCs) treated with Anti-Human IL-4 Polyclonal Antibody (Catalog # AB-204-NA; 20 μg/mL) and Recombinant Human IL‑12 (Catalog # ;10 ng/mL) for 5 days to induce Th1 cell development were fixed and permeabilized with FlowX FoxP3 Fixation & Permeabilization Buffer Kit (Catalog # )

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Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Preparation and Storage

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Protect from light.    Do not freeze.    

• 12 months from date of receipt, 2 to 8 °C as supplied.

Background: T-bet/TBX21

T-box expressed in T cells (T-bet), also known as T-box transcription factor TBX21, is a 62 kDa member of the T-box family of transcription factors and the Tbr1 subfamily. Human T-bet is 535 amino acids in length and contains a T-box DNA binding domain (aa 136-327). Human T-bet shares 88% aa sequence identity with mouse T-bet. T-bet is a nuclear protein highly apparent in Th1 cells. Northern blot analysis revealed that it is also expressed in lung, thymus and spleen. Functionally, T-bet controls the expression of the Th1 cytokine, IFN-gamma, and initiates Th1 lineage development from naïve Th precursor cells by both activating Th1 genetic programs and by repressing the opposing Th2 programs.

• Long Name:

  T-box transcription factor TBX21

• Entrez Gene IDs:

  30009 (Human); 57765 (Mouse); 303496 (Rat)

• Alternate Names:

  Tbet; T-bet; TBETT-PET; TBLYM; TBLYMT-cell-specific T-box transcription factor T-bet; T-box 21; T-box expressed in T cells; T-box protein 21; T-box transcription factor TBX21; TBX21; T-PET; Transcription factor TBLYM