Large ribosomal subunit protein uL1 (rplA) is a 229-residue protein from Thermus thermophilus (strain ATCC BAA-163 / DSM 7039 / HB27). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q72GV9.
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The mean pLDDT of this model is 90.3 (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 | 61% |
| 70 to 90 | Confident: backbone generally right | 38% |
| 50 to 70 | Low: treat with caution | 1% |
| Below 50 | Very low: often disordered regions | 0% |
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
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6N1D | X-ray | 3.2 Å | AL01/BL01=2-229 |
| 4V9K | X-ray | 3.5 Å | BC/DC=2-229 |
| 4V9L | X-ray | 3.5 Å | BC/DC=2-229 |
| 4V4I | X-ray | 3.71 Å | A=1-229 |
| 4W29 | X-ray | 3.8 Å | BC/DC=2-229 |
| 4V4J | X-ray | 3.83 Å | A=1-229 |
| 4V9J | X-ray | 3.86 Å | BC/DC=2-229 |
| 4V9M | X-ray | 4.0 Å | BC/DC=2-229 |
| 4V8Y | EM | 4.3 Å | L/y=1-229 |
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