Description_x000D_ General description_x000D_ Transcription factor 4 or T-Cell Factor-4 (TCF-4), also called as transcription factor 7 like 2 (TCF7L2), is mapped to human chromosome 18q21.1. The gene codes for a basic helix-loop-helix DNA binding protein, which belongs to TCF family and is implicated in transcriptional regulation. It is expressed predominantly in nervous system. TCF4 protein has a transcriptional activation domain 2 (AD2), a transcriptional activation domain (AD1) and a nuclear localization signal (NLS) in the N-terminal end and a C-terminal basic helix-loop-helix (bHLH) domain, involved in dimerization and deoxyribonucleic acid (DNA) binding._x000D_ Immunogen_x000D_ His-tagged fusion protein corresponding to amino acids 31-331 of human TCF-4_x000D_ Application_x000D_ May be used for gel-shift assays_x000D_ Physical form_x000D_ Solution in 0.7 M tris-glycine, pH 7.4, containing 0.105 M sodium chloride, 30% glycerol and 0.035% sodium azide._x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Biochem/physiol Actions_x000D_ Transcription factor 4 (TCF-4) interacts functionally with β-catenin to mediate Wnt signaling pathway and transactivates downstream target genes implicated in cancer development. TCF-4 plays a vital role in development of the nervous system and vertebrate development. Aberrations or mutation of the gene leads to Pitt-Hopkins syndrome (PTHS), a rare developmental disorder characterized by severe motor and mental retardation, typical facial features and breathing abnormalities.