Large ribosomal subunit protein uL3 (rplC) is a 209-residue protein from Bacillus subtilis (strain 168). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P42920.
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The mean pLDDT of this model is 92.5 (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 | 86% |
| 70 to 90 | Confident: backbone generally right | 13% |
| 50 to 70 | Low: treat with caution | 1% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
One of the primary rRNA binding proteins, it binds directly near the 3'-end of the 23S rRNA, where it nucleates assembly of the 50S subunit (By similarity). Strongly stimulates 23S rRNA precursor processing by mini-ribonuclease 3 (MrnC); 20-30% DMSO can replace L3, suggesting the protein may alter rRNA conformation
Part of the 50S ribosomal subunit (PubMed:30126986). Forms a cluster with proteins L14 and L19 (By similarity). Interacts with RNA helicase CshA (PubMed:23175651)
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 8S1P | EM | 1.96 Å | D=1-209 |
| 8QCQ | EM | 2.3 Å | D=1-209 |
| 9FY1 | EM | 2.3 Å | D=1-209 |
| 9FY2 | EM | 2.3 Å | D=1-209 |
| 9FY3 | EM | 2.8 Å | D=1-209 |
| 7AS8 | EM | 2.9 Å | F=1-209 |
| 8BUU | EM | 2.9 Å | D=1-209 |
| 7AQC | EM | 2.99 Å | D=1-209 |
| 7SAE | EM | 3.0 Å | D=1-209 |
| 6TNN | EM | 3.07 Å | X=1-209 |
| 6TPQ | EM | 3.07 Å | X=1-209 |
| 6HA1 | EM | 3.1 Å | D=1-209 |
| 7AQD | EM | 3.1 Å | D=1-209 |
| 9BSL | EM | 3.1 Å | D=1-209 |
| 9BSS | EM | 3.1 Å | D=1-209 |
| 7OPE | EM | 3.2 Å | F=1-209 |
| 7S9U | EM | 3.2 Å | D=1-209 |
| 9BS0 | EM | 3.3 Å | D=1-209 |
| 7O5B | EM | 3.33 Å | a=1-208 |
| 6PPF | EM | 3.4 Å | D=1-209 |
Showing 20 of 37 experimental structures (best resolution first).
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