cAMP-dependent protein kinase inhibitor alpha (PKIA) is a 76-residue protein from Sus scrofa. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q71U53.
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The mean pLDDT of this model is 64.6 (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 | 3% |
| 70 to 90 | Confident: backbone generally right | 30% |
| 50 to 70 | Low: treat with caution | 53% |
| Below 50 | Very low: often disordered regions | 14% |
What pLDDT means and how to read it
Extremely potent competitive inhibitor of cAMP-dependent protein kinase activity, this protein interacts with the catalytic subunit of the enzyme after the cAMP-induced dissociation of its regulatory chains
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 2F7X | X-ray | 1.9 Å | I=6-25 |
| 1Q61 | X-ray | 2.1 Å | I=6-25 |
| 1Q24 | X-ray | 2.6 Å | I=6-25 |
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