Bacteriorhodopsin-I (bop) is a 250-residue protein from Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q5UXY6.
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The mean pLDDT of this model is 94.8 (very high 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 | 92% |
| 70 to 90 | Confident: backbone generally right | 4% |
| 50 to 70 | Low: treat with caution | 2% |
| Below 50 | Very low: often disordered regions | 2% |
What pLDDT means and how to read it
Light-driven proton pump
Membrane
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 7DOH | X-ray | 1.45 Å | I=242-250 |
| 4PXK | X-ray | 2.5 Å | A=1-250 |
| 8Y9Z | EM | 3.41 Å | B=1-99 |
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