• Species Reactivity

  Human

• Specificity

  Detects human TCF-12/HTF4 in direct ELISAs. In direct ELISAs, 75%‑100% cross-reactivity with recombinant human (rh) TCF-3 and no cross-reactivity with rhTCF-1, -2, -4, or rhStathmin-2 is observed.

• Source

  Monoclonal Mouse IgG    ₁ Clone # 690129

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  E. coli-derived recombinant human TCF-12/HTF4    
  Met108-Glu521    
  Accession # Q99081

• Formulation

  Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

• Label

  Unconjugated

Applications

• 
  

  Recommended    
  Concentration

  Sample

• Immunocytochemistry

  8-25 µg/mL

  See below

• 
  

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

Data Examples

Preparation and Storage

• Reconstitution

  Sterile PBS to a final concentration of 0.5 mg/mL.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• Stability & Storage

  Use a manual defrost freezer and avoid repeated freeze-thaw cycles.    

• 12 months from date of receipt, -20 to -70 °C as supplied.

• 1 month, 2 to 8 °C under sterile conditions after reconstitution.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: TCF-12/HTF4

TCF-12 (transcription factor 12), also called HTF4, bHLHb20 and HEB, is a 682 amino acid (aa) DNA binding protein of the E protein family of helix-loop-helix (HLH) transcription factors. E proteins, including TCF-12 and E2A, mediate lymphocyte differentiation and also function in neurogenesis. Homo-oligomerization is required for activity; hetero-oligomers are also formed. The region of human TCF-12 used as an immunogen excludes the HLH domain and shares 94% aa sequence identity with mouse and rat TCF-12. Potential isoforms of 706 and 648 aa contain an insertion of 24 aa after aa 396, while isoforms of 648, 624 and 512 aa show alternate N‑terminal sequences that merge with the 682 aa form at aa 75, 75 and 194, respectively.

• Long Name:

  Transcription Factor 12

• Entrez Gene IDs:

  6938 (Human); 21406 (Mouse); 25720 (Rat)

• Alternate Names:

  BHLHB20; bHLHb20E-box-binding protein; Class B basic helix-loop-helix protein 20; HEB; HEBDNA-binding protein HTF4; helix-loop-helix transcription factor 4; HsT17266; HTF4; HTF4TCF-12; TCF12; TCF-12; transcription factor 12; Transcription factor HTF-4