Small ribosomal subunit protein uS2m (MRPS2) is a 296-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9Y399.
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The mean pLDDT of this model is 82.3 (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 | 71% |
| 70 to 90 | Confident: backbone generally right | 3% |
| 50 to 70 | Low: treat with caution | 5% |
| Below 50 | Very low: often disordered regions | 21% |
What pLDDT means and how to read it
Required for mitoribosome formation and stability, and mitochondrial translation
Component of the mitochondrial small ribosomal subunit (mt-SSU). Mature mammalian 55S mitochondrial ribosomes consist of a small (28S) and a large (39S) subunit. The 28S small subunit contains a 12S ribosomal RNA (12S mt-rRNA) and 30 different proteins. The 39S large subunit contains a 16S rRNA (16S mt-rRNA), a copy of mitochondrial valine transfer RNA (mt-tRNA(Val)), which plays an integral…
Mitochondrion
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 7QI4 | EM | 2.21 Å | AB=1-296 |
| 8CSS | EM | 2.36 Å | B=1-296 |
| 7P2E | EM | 2.4 Å | B=1-296 |
| 8RRI | EM | 2.4 Å | AB=1-296 |
| 9OJM | EM | 2.5 Å | B=53-277 |
| 8CSQ | EM | 2.54 Å | B=1-296 |
| 8CSR | EM | 2.54 Å | B=1-296 |
| 6ZM6 | EM | 2.59 Å | AB=1-296 |
| 7QI5 | EM | 2.63 Å | AB=1-296 |
| 8CSP | EM | 2.66 Å | B=1-296 |
| 7PNX | EM | 2.76 Å | B=1-296 |
| 8ANY | EM | 2.85 Å | AB=1-296 |
| 8CST | EM | 2.85 Å | B=1-296 |
| 6ZM5 | EM | 2.89 Å | AB=1-296 |
| 7PO0 | EM | 2.9 Å | B=1-296 |
| 8K2A | EM | 2.9 Å | SB=1-296 |
| 7PO1 | EM | 2.92 Å | B=1-296 |
| 7PO3 | EM | 2.92 Å | B=1-296 |
| 6VMI | EM | 2.96 Å | AB=1-296 |
| 6RW4 | EM | 2.97 Å | B=1-296 |
Showing 20 of 62 experimental structures (best resolution first).
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