Gastrin (GAST) is a 101-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P01350.
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The mean pLDDT of this model is 64.9 (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 | 13% |
| 70 to 90 | Confident: backbone generally right | 8% |
| 50 to 70 | Low: treat with caution | 69% |
| Below 50 | Very low: often disordered regions | 10% |
What pLDDT means and how to read it
Gastrin stimulates the stomach mucosa to produce and secrete hydrochloric acid and the pancreas to secrete its digestive enzymes. It also stimulates smooth muscle contraction and increases blood circulation and water secretion in the stomach and intestine
Secreted
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 5WRJ | X-ray | 2.31 Å | F/H/J/L=81-92 |
| 7F8W | EM | 3.1 Å | E=76-92 |
| 7XOW | EM | 3.1 Å | L=76-92 |
| 7F8V | EM | 3.3 Å | E=76-92 |
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