Plasmid-derived single-stranded DNA-binding protein (ssb) is a 175-residue protein from Escherichia coli. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P28044.
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The mean pLDDT of this model is 81.6 (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 | 59% |
| 70 to 90 | Confident: backbone generally right | 7% |
| 50 to 70 | Low: treat with caution | 25% |
| Below 50 | Very low: often disordered regions | 9% |
What pLDDT means and how to read it
May contribute to the conjugative processing of DNA. It has a functional relationship with Psi (plasmid-mediated sos inhibition) proteins
Homotetramer
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 8TFU | X-ray | 1.48 Å | C/D=166-175 |
| 8TGC | X-ray | 1.48 Å | C/D=166-175 |
| 8TG7 | X-ray | 1.77 Å | C/D=166-175 |
| 3Q8D | X-ray | 2.3 Å | E/F=168-175 |
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