Small ribosomal subunit protein uS2 (rpsB) is a 256-residue protein from Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P80371.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 90.1 (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 | 84% |
| 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
Part of the 30S ribosomal subunit. Contacts protein S8 and may contact the N-terminus of Era
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 9NO7 | EM | 2.13 Å | b=1-256 |
| 4Y4O | X-ray | 2.3 Å | 1b/2b=1-256 |
| 8CVL | X-ray | 2.3 Å | 1b/2b=1-256 |
| 8FC6 | X-ray | 2.35 Å | 1b/2b=1-256 |
| 8VTW | X-ray | 2.35 Å | 1b/2b=1-256 |
| 4W2F | X-ray | 2.4 Å | AB/CB=1-256 |
| 6XHV | X-ray | 2.4 Å | 1b/2b=1-256 |
| 7RQA | X-ray | 2.4 Å | 1b/2b=1-256 |
| 7RQE | X-ray | 2.4 Å | 1b/2b=1-256 |
| 8CVJ | X-ray | 2.4 Å | 1b/2b=1-256 |
| 8VTU | X-ray | 2.4 Å | 1b/2b=1-256 |
| 8VTX | X-ray | 2.4 Å | 1b/2b=1-256 |
| 9MTP | X-ray | 2.4 Å | 1b/2b=1-256 |
| 10PX | X-ray | 2.45 Å | 1b/2b=1-256 |
| 7RQB | X-ray | 2.45 Å | 1b/2b=1-256 |
| 8FC4 | X-ray | 2.45 Å | 1b/2b=1-256 |
| 8G2A | X-ray | 2.45 Å | 1b/2b=1-256 |
| 9D0I | X-ray | 2.45 Å | 1b/2b=1-256 |
| 2VQE | X-ray | 2.5 Å | B=1-256 |
| 4Y4P | X-ray | 2.5 Å | 1b/2b=1-256 |
Showing 20 of 412 experimental structures (best resolution first).
MolViewer loads the AlphaFold model straight from AlphaFold DB into your browser. Show it as a cartoon, color by pLDDT, measure distances and angles, and load a PDB structure next to it to compare.