Target type: cellularcomponent
A protein complex that contains beta-catenin and TCF7L2 (TCF4), binds to the TCF DNA motif within a promoter element, and is involved in the regulation of WNT target gene transcription. [GOC:BHF, GOC:rl, PMID:9065401, PMID:9065402]
The beta-catenin-TCF7L2 complex is a key transcriptional activator in the Wnt signaling pathway. It resides within the nucleus and interacts with DNA, influencing the expression of genes involved in cell growth, differentiation, and development. The complex is formed by the association of beta-catenin, a scaffolding protein, with TCF7L2, a transcription factor.
Beta-catenin is a dual-function protein, acting both as an adhesion molecule in cell junctions and as a signaling molecule in the nucleus. In the absence of Wnt signaling, beta-catenin is phosphorylated and degraded in the cytoplasm. However, upon Wnt activation, beta-catenin is stabilized and translocated to the nucleus, where it binds to TCF7L2.
The TCF7L2 protein contains a DNA-binding domain that recognizes specific sequences in the promoter regions of Wnt target genes. When beta-catenin binds to TCF7L2, it displaces the co-repressor Groucho, allowing the complex to recruit other transcriptional co-activators, such as CBP/p300, and activate gene transcription.
Therefore, the cellular component of the beta-catenin-TCF7L2 complex is the nucleus, where it interacts with DNA and modulates gene expression. The complex is a key player in the regulation of a wide range of cellular processes, highlighting the importance of its precise localization within the nucleus for its proper function.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Transcription factor 7-like 2 | A transcription factor 7-like 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9NQB0] | Homo sapiens (human) |
| Catenin beta-1 | A catenin beta-1 that is encoded in the genome of human. [PRO:WCB, UniProtKB:P35222] | Homo sapiens (human) |
| Transcription factor 4 | A transcription factor 4 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P15884] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| salvin | salvin: a biocyclic diterpenoid; from sage and rosemary (Lamiaceae) | abietane diterpenoid; carbotricyclic compound; catechols; monocarboxylic acid | angiogenesis modulating agent; anti-inflammatory agent; antineoplastic agent; antioxidant; apoptosis inducer; food preservative; HIV protease inhibitor; plant metabolite |
| toxoflavin | toxoflavin : A pyrimidotriazine that is 1,6-dimethyl-1,5,6,7-tetrahydropyrimido[5,4-e][1,2,4]triazine with oxo groups at positions 5 and 7. toxoflavin: azapteridine antibiotic; structure | carbonyl compound; pyrimidotriazine | antibacterial agent; antineoplastic agent; apoptosis inducer; bacterial metabolite; toxin; virulence factor; Wnt signalling inhibitor |
| cercosporin | cercosporin : An organic heterohexacyclic compound that is perylo[1,12-def][1,3]dioxepine-6,11-dione substituted by hydroxy groups at positions 5 and 12, by methoxy groups at positions 7 and 10, and by 2-hydroxypropyl groups at positions 8 and 9 (the R,R-stereoisomer). It is a phytotoxin which was first isolated from the pathogenic soybean fungus, Cercospora kikuchii and later found in multiple members of the genus Cercospora. cercosporin: phyytotoxin from Cercospora beticola Sacc; posses photodynamic action on mice, bacteria & plants | ||
| LSM-42773 | aromatic ketone | ||
| etodolac, (-)-isomer | (R)-etodolac : The R-enantiomer of etodolac. It is inactive, in contrast to the enantiomer, (S)-etodolac, which is a preferential inhibitor of cyclo-oxygenase 2 and a non-steroidal anti-inflammatory. The racemate is commonly used for the treatment of rheumatoid arthritis and osteoarthritis, and for the alleviation of postoperative pain. | etodolac | |
| ucn 1028 c | calphostin C: structure given in first source; isolated from Cladosporium cladosporioides |