Large ribosomal subunit protein uL1 (rplA) is a 233-residue protein from Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / CCUG 27074 / LMG 4051 / NBRC 15346 / NCIMB 9279 / VKM B-1422 / R1). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9RSS8.
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The mean pLDDT of this model is 87.5 (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 | 39% |
| 70 to 90 | Confident: backbone generally right | 58% |
| 50 to 70 | Low: treat with caution | 1% |
| Below 50 | Very low: often disordered regions | 2% |
What pLDDT means and how to read it
Binds directly to 23S rRNA. Forms the L1 stalk. Unlike the case in the Thermus thermophilus 70S ribosome, this protein is not seen to block the exit path of the E site tRNA. It is clear that the protein in the structure is flexible however, so this is probably due to its position in these crystals
Part of the 50S ribosomal subunit
Compare the prediction with experimentally determined structures of the same protein:
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