Peptide chain release factor 2 (prfB) is a 378-residue protein from Thermus thermophilus (strain ATCC BAA-163 / DSM 7039 / HB27). This is its AlphaFold structure prediction, created 1 Jun 2022. UniProt accession: Q72GJ6.
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The mean pLDDT of this model is 79.7 (confident 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 | 32% |
| 70 to 90 | Confident: backbone generally right | 53% |
| 50 to 70 | Low: treat with caution | 5% |
| Below 50 | Very low: often disordered regions | 10% |
What pLDDT means and how to read it
Peptide chain release factor 2 directs the termination of translation in response to the peptide chain termination codons UGA and UAA
Cytoplasm
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 4V9N | X-ray | 3.4 Å | AY/CY=17-378 |
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