Q9NQB0: Transcription factor 7-like 2 (TCF7L2)

Transcription factor 7-like 2 (TCF7L2) is a 619-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9NQB0.

Gene
TCF7L2
Organism
Homo sapiens
Length
619 residues
Mean pLDDT
53.0
Model
AF-Q9NQB0-F1 v6
Model created
1 Aug 2025
PDB structures
3

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Model confidence (pLDDT)

The mean pLDDT of this model is 53.0 (low overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate9%
70 to 90Confident: backbone generally right8%
50 to 70Low: treat with caution17%
Below 50Very low: often disordered regions65%

What pLDDT means and how to read it

Function

Participates in the Wnt signaling pathway and modulates MYC expression by binding to its promoter in a sequence-specific manner. Acts as a 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

Subunit structure

Interacts with TGFB1I1 (By similarity). Interacts with CTNNB1 (via the armadillo repeat); forms stable transcription complex (PubMed:10080941, PubMed:17052462, PubMed:19816403, PubMed:28829046, PubMed:29739711, PubMed:9065401, PubMed:9916915). Interacts with EP300. Interacts with NLK. Interacts with CCDC85B (probably through the HMG box); prevents interaction with CTNNB1. Interacts with TNIK.…

Subcellular location

Nucleus, PML body, Nucleus

Disease associations

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
1JDHX-ray1.9 ÅB=12-49
1JPWX-ray2.5 ÅD/E/F=6-54
2GL7X-ray2.6 ÅB/E=1-53

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