Pancreas/duodenum homeobox protein 1 (PDX1) is a 283-residue protein from Mesocricetus auratus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P70118.
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The mean pLDDT of this model is 65.6 (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 band | Meaning | Share of residues |
|---|---|---|
| Above 90 | Very high: backbone and side chains are usually accurate | 20% |
| 70 to 90 | Confident: backbone generally right | 15% |
| 50 to 70 | Low: treat with caution | 41% |
| Below 50 | Very low: often disordered regions | 24% |
What pLDDT means and how to read it
Activates insulin and somatostatin gene transcription. Key regulator of islet peptide hormone expression but also responsible for the development of the pancreas, most probably by determining maturation and differentiation of common pancreatic precursor cells in the developing gut. As part of a PDX1:PBX1b:MEIS2b complex in pancreatic acinar cells is involved in the transcriptional activation of the ELA1 enhancer; the complex binds to the enhancer B element and cooperates with the transcription factor 1 complex (PTF1) bound to the enhancer A element. Binds the DNA sequence 5'-CC[CT]TAATGGG-3' (By similarity)
Interacts with the basic helix-loop-helix domains of TCF3(E47) and NEUROD1 and with HMG-I(Y). Interacts with SPOP and the methyltransferase SETD7. Part of a PDX1:PBX1b:MEIS2b complex (By similarity)
Nucleus, Cytoplasm, cytosol
Compare the prediction with experimentally determined structures of the same protein:
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