Rubredoxin is a 54-residue protein from Clostridium pasteurianum. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P00268.
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The mean pLDDT of this model is 96.9 (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 | 94% |
| 70 to 90 | Confident: backbone generally right | 4% |
| 50 to 70 | Low: treat with caution | 2% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
Rubredoxin is a small nonheme, iron protein lacking acid-labile sulfide. Its single Fe, chelated to 4 Cys, functions as an electron acceptor and may also stabilize the conformation of the molecule
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 2PVE | X-ray | 0.79 Å | A/B/C=1-54 |
| 1IRO | X-ray | 1.1 Å | A=1-54 |
| 1IRN | X-ray | 1.2 Å | A=1-54 |
| 4RXN | X-ray | 1.2 Å | A=1-54 |
| 5RXN | X-ray | 1.2 Å | A=1-54 |
| 1SMM | X-ray | 1.36 Å | A=1-54 |
| 1SMW | X-ray | 1.38 Å | A=1-54 |
| 1SMU | X-ray | 1.43 Å | A=1-54 |
| 1B13 | X-ray | 1.5 Å | A=1-54 |
| 1FHH | X-ray | 1.5 Å | A=1-54 |
| 1FHM | X-ray | 1.5 Å | A=1-54 |
| 1R0I | X-ray | 1.5 Å | A=1-54 |
| 1T9P | X-ray | 1.5 Å | A/B/C=1-54 |
| 1B2J | X-ray | 1.6 Å | A=1-54 |
| 1C09 | X-ray | 1.6 Å | A/B/C=1-54 |
| 1R0F | X-ray | 1.6 Å | A=1-54 |
| 1R0G | X-ray | 1.6 Å | A=1-54 |
| 1BE7 | X-ray | 1.65 Å | A=1-54 |
| 1R0H | X-ray | 1.7 Å | A=1-54 |
| 1T9Q | X-ray | 1.8 Å | A=1-54 |
Showing 20 of 45 experimental structures (best resolution first).
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