Small ribosomal subunit protein uS11 (rpsK) is a 129-residue protein from Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P80376.
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The mean pLDDT of this model is 91.5 (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 | 78% |
| 70 to 90 | Confident: backbone generally right | 19% |
| 50 to 70 | Low: treat with caution | 3% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
Located on the upper part of the platform of the 30S subunit, where it bridges several disparate RNA helices of the 16S rRNA. Forms part of the Shine-Dalgarno cleft in the 70S ribosome, where it interacts both with the Shine-Dalgarno helix and mRNA
Part of the 30S ribosomal subunit. Interacts with proteins S7 and S18. Binds to the C-terminus of IF-3; however exactly how IF-3 interacts with the 30S subunit is unclear. May contact the C-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 | k=1-129 |
| 4Y4O | X-ray | 2.3 Å | 1k/2k=1-129 |
| 8CVL | X-ray | 2.3 Å | 1k/2k=1-129 |
| 8FC6 | X-ray | 2.35 Å | 1k/2k=1-129 |
| 8VTW | X-ray | 2.35 Å | 1k/2k=1-129 |
| 4W2F | X-ray | 2.4 Å | AK/CK=1-129 |
| 6XHV | X-ray | 2.4 Å | 1k/2k=1-129 |
| 7RQA | X-ray | 2.4 Å | 1k/2k=1-129 |
| 7RQE | X-ray | 2.4 Å | 1k/2k=1-129 |
| 8CVJ | X-ray | 2.4 Å | 1k/2k=1-129 |
| 8VTU | X-ray | 2.4 Å | 1k/2k=1-129 |
| 8VTX | X-ray | 2.4 Å | 1k/2k=1-129 |
| 9MTP | X-ray | 2.4 Å | 1k/2k=1-129 |
| 10PX | X-ray | 2.45 Å | 1k/2k=1-129 |
| 7RQB | X-ray | 2.45 Å | 1k/2k=1-129 |
| 8FC4 | X-ray | 2.45 Å | 1k/2k=1-129 |
| 8G2A | X-ray | 2.45 Å | 1k/2k=1-129 |
| 9D0I | X-ray | 2.45 Å | 1k/2k=1-129 |
| 2VQE | X-ray | 2.5 Å | K=1-129 |
| 4Y4P | X-ray | 2.5 Å | 1k/2k=1-129 |
Showing 20 of 412 experimental structures (best resolution first).
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