Small ribosomal subunit protein uS13 (RPS18) is a 152-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P62269.
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The mean pLDDT of this model is 88.7 (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 | 72% |
| 70 to 90 | Confident: backbone generally right | 19% |
| 50 to 70 | Low: treat with caution | 8% |
| Below 50 | Very low: often disordered regions | 1% |
What pLDDT means and how to read it
Component of the small ribosomal subunit. The ribosome is a large ribonucleoprotein complex responsible for the synthesis of proteins in the cell
Component of the small ribosomal subunit
Cytoplasm
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 8GLP | EM | 1.67 Å | SS=1-152 |
| 8QOI | EM | 1.9 Å | SS=1-152 |
| 9O3W | EM | 1.9 Å | SS=1-152 |
| 8YOO | EM | 2.0 Å | SS=1-152 |
| 9C3H | EM | 2.0 Å | ST=1-152 |
| 7R4X | EM | 2.15 Å | S=1-152 |
| 9I2D | EM | 2.19 Å | SS=1-152 |
| 9PBE | EM | 2.19 Å | SS=1-145 |
| 8YOP | EM | 2.2 Å | SS=1-152 |
| 9O3Y | EM | 2.2 Å | SS=1-152 |
| 8JDK | EM | 2.26 Å | AE=1-152 |
| 8G5Y | EM | 2.29 Å | SS=1-152 |
| 9S3D | EM | 2.32 Å | SS=1-152 |
| 9RPV | EM | 2.35 Å | RS/SS=1-152 |
| 9S3B | EM | 2.38 Å | SS=1-152 |
| 8K2C | EM | 2.4 Å | SS=1-152 |
| 8XSX | EM | 2.4 Å | SS=1-152 |
| 9SPF | EM | 2.4 Å | SS=1-152 |
| 9SPI | EM | 2.4 Å | SS=1-152 |
| 8JDL | EM | 2.42 Å | AE=1-152 |
Showing 20 of 185 experimental structures (best resolution first).
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