Cytochrome c (CYCS) is a 105-residue protein from Bos taurus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P62894.
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The mean pLDDT of this model is 97.8 (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 | 98% |
| 70 to 90 | Confident: backbone generally right | 2% |
| 50 to 70 | Low: treat with caution | 0% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
Electron carrier protein. The oxidized form of the cytochrome c heme group can accept an electron from the heme group of the cytochrome c1 subunit of cytochrome reductase. Cytochrome c then transfers this electron to the cytochrome oxidase complex, the final protein carrier in the mitochondrial electron-transport chain
Mitochondrion intermembrane space
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 2B4Z | X-ray | 1.5 Å | A=2-105 |
| 6FF5 | X-ray | 1.74 Å | A=2-105 |
| 5JUY | EM | 4.1 Å | H/I/J/K/L/M/N=2-105 |
| 3J2T | EM | 9.5 Å | H/I/J/K/L/M/N=2-105 |
| 2YBB | EM | 19.0 Å | Y=2-105 |
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