Large ribosomal subunit protein uL1 (rplA) is a 232-residue protein from Bacillus subtilis (strain 168). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q06797.
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The mean pLDDT of this model is 88.2 (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 | 46% |
| 70 to 90 | Confident: backbone generally right | 51% |
| 50 to 70 | Low: treat with caution | 2% |
| Below 50 | Very low: often disordered regions | 1% |
What pLDDT means and how to read it
Binds directly to 23S rRNA. The L1 stalk is quite mobile in the ribosome, and is involved in E site tRNA release
Part of the 50S ribosomal subunit (PubMed:30126986, PubMed:35264791). Interacts with RNA helicase CshA (PubMed:23175651). Interacts with VmlR (PubMed:30126986). In stalled ribosomes contacts MutS2 (PubMed:35264791)
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 9BSL | EM | 3.1 Å | Y=1-232 |
| 9BSS | EM | 3.1 Å | Y=1-232 |
| 9BS0 | EM | 3.3 Å | Y=1-232 |
| 6HA8 | EM | 3.5 Å | 8=1-232 |
| 3J3W | EM | 10.7 Å | 5=1-232 |
| 3J3V | EM | 13.3 Å | 5=1-232 |
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