Sulfite reductase [ferredoxin], chloroplastic (SIR) is a 635-residue protein from Zea mays. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: O23813.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 92.2 (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 | 88% |
| 70 to 90 | Confident: backbone generally right | 2% |
| 50 to 70 | Low: treat with caution | 0% |
| Below 50 | Very low: often disordered regions | 10% |
What pLDDT means and how to read it
Essential protein with sulfite reductase activity required in assimilatory sulfate reduction pathway during both primary and secondary metabolism and thus involved in development and growth
Monomer (By similarity). Interacts with ferredoxin
Plastid, chloroplast stroma, chloroplast nucleoid, Plastid, chloroplast stroma, Plastid stroma
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 5H92 | X-ray | 2.08 Å | A/B=53-635 |
| 5H8V | X-ray | 2.2 Å | A/B=53-635 |
| 5H8Y | X-ray | 2.2 Å | A/B/C/D=53-635 |
MolViewer loads the AlphaFold model straight from AlphaFold DB into your browser. Show it as a cartoon, color by pLDDT, measure distances and angles, and load a PDB structure next to it to compare.