Small ribosomal subunit protein uS2 (rpsB) is a 256-residue protein from Thermus thermophilus (strain ATCC BAA-163 / DSM 7039 / HB27). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P62662.
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The mean pLDDT of this model is 89.9 (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 | 83% |
| 70 to 90 | Confident: backbone generally right | 11% |
| 50 to 70 | Low: treat with caution | 2% |
| Below 50 | Very low: often disordered regions | 4% |
What pLDDT means and how to read it
Spans the head-body hinge region of the 30S subunit. Is loosely associated with the 30S subunit (By similarity)
Part of the 30S ribosomal subunit. Contacts protein S8 (By similarity)
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 4V67 | X-ray | 3.0 Å | AB/CB=1-256 |
| 5J4D | X-ray | 3.1 Å | KA/PC=1-256 |
| 6N1D | X-ray | 3.2 Å | AS02/BS02=2-256 |
| 4V63 | X-ray | 3.21 Å | AB/CB=1-256 |
| 5V8I | X-ray | 3.25 Å | 1b/2b=1-256 |
| 4V84 | X-ray | 3.4 Å | AB/CB=7-240 |
| 4V9N | X-ray | 3.4 Å | AB/CB=7-240 |
| 4V9Q | X-ray | 3.4 Å | BB/DB=7-240 |
| 6B4V | X-ray | 3.4 Å | KA/OC=1-256 |
| 6BOH | X-ray | 3.4 Å | LA/QC=1-256 |
| 4V83 | X-ray | 3.5 Å | AB/CB=7-240 |
| 4V9K | X-ray | 3.5 Å | AB/CB=7-241 |
| 4V9L | X-ray | 3.5 Å | AB/CB=7-241 |
| 6BOK | X-ray | 3.55 Å | JA/MC=1-256 |
| 4V7P | X-ray | 3.62 Å | AB/DB=7-240 |
| 4V4I | X-ray | 3.71 Å | c=1-256 |
| 4W29 | X-ray | 3.8 Å | AB/CB=7-241 |
| 4XEJ | X-ray | 3.8 Å | AS02/BS02=7-240 |
| 4V4J | X-ray | 3.83 Å | c=1-256 |
| 4V9J | X-ray | 3.86 Å | AB/CB=7-241 |
Showing 20 of 23 experimental structures (best resolution first).
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