TCF7L2 Antibody – Rabbit Polyclonal

This gene encodes a high mobility group (HMG) box-containing transcription factor that plays a key role in the Wnt signaling pathway. The protein has been implicated in blood glucose homeostasis. Genetic variants of this gene are associated with increased risk of type 2 diabetes. Several transcript variants encoding multiple different isoforms have been found for this gene.[provided by RefSeq, Oct 2010]

TCF7L2: Participates in the Wnt signaling pathway and modulates MYC expression by binding to its promoter in a sequence-specific manner. Acts as repressor in the absence of CTNNB1, and as activator in its presence. Activates transcription from promoters with several copies of the Tcf motif 5'-CCTTTGATC-3' in the presence of CTNNB1. TLE1, TLE2, TLE3 and TLE4 repress transactivation mediated by TCF7L2/TCF4 and CTNNB1. Expression of dominant-negative mutants results in cell-cycle arrest in G1. Necessary for the maintenance of the epithelial stem-cell compartment of the small intestine. Interacts with TGFB1I1. Interacts with CTNNB1 (via the armadillo repeat); forms stable transcription complex. Interacts with EP300. Interacts with NLK. Interacts with CCDC85B (probably through the HMG box); prevents interaction with CTNNB1. Interacts with TNIK. Interacts with MAD2L2; prevents TCF7L2/TCF4 binding to promZIPK/DAPK3oters, negatively modulating its transcriptional activity. Interacts with ZIPK/DAPK3. Interacts with XIAP/BIRC4 and TLE3. Detected in epithelium from small intestine, with the highest expression at the top of the crypts and a gradient of expression from crypt to villus. Detected in colon epithelium and colon cancer, and in epithelium from mammary gland and carcinomas derived therefrom. Belongs to the TCF/LEF family. 10 isoforms of the human protein are produced by alternative splicing.

Protein type: Apoptosis; Motility/polarity/chemotaxis; DNA-binding; Transcription factor; Cell development/differentiation; Cell cycle regulation

Chromosomal Location of Human Ortholog: 10q25.3

Cellular Component: nucleoplasm; transcription factor complex; PML body; cytoplasm; nuclear chromatin; nucleus

Molecular Function: protein binding; sequence-specific DNA binding; gamma-catenin binding; beta-catenin binding; chromatin binding; transcription factor binding; transcription factor activity; protein kinase binding; nuclear hormone receptor binding

Biological Process: neural tube development; skin development; glycogen metabolic process; fat cell differentiation; regulation of myelination; somatic stem cell maintenance; positive regulation of apoptosis; Wnt receptor signaling pathway through beta-catenin; glucose homeostasis; maintenance of DNA repeat elements; negative regulation of BMP signaling pathway; post-embryonic development; embryonic digestive tract morphogenesis; response to glucose stimulus; cell cycle arrest; oligodendrocyte development; embryonic hindgut morphogenesis; embryonic genitalia morphogenesis; regulation of hormone metabolic process; transcription, DNA-dependent; regulation of smooth muscle cell proliferation; negative regulation of transcription factor activity; glucose metabolic process; positive regulation of insulin secretion; cellular response to starvation; negative regulation of organ growth; negative regulation of fat cell differentiation; regulation of transcription from RNA polymerase II promoter; positive regulation of transcription from RNA polymerase II promoter; negative regulation of transcription, DNA-dependent; positive regulation of epithelial cell proliferation; secretory granule localization; myoblast cell fate commitment; positive regulation of protein binding; negative regulation of fibroblast growth factor receptor signaling pathway; regulation of oligodendrocyte differentiation; negative regulation of transcription from RNA polymerase II promoter; bone mineralization; positive regulation of protein export from nucleus; positive regulation of gluconeogenesis; pancreas development; blood vessel development; multicellular organism growth; odontogenesis of dentine-containing teeth; positive regulation of protein kinase B signaling cascade; cell proliferation; generation of neurons; pituitary gland development; regulation of skeletal muscle development; brain development

Disease: Diabetes Mellitus, Noninsulin-dependent