Ubiquitin B (UBB) is a 153-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Jun 2022. UniProt accession: B4DV12.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 91.6 (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 | 77% |
| 70 to 90 | Confident: backbone generally right | 18% |
| 50 to 70 | Low: treat with caution | 4% |
| Below 50 | Very low: often disordered regions | 1% |
What pLDDT means and how to read it
Cytoplasm, Mitochondrion outer membrane, Nucleus
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 8SVI | X-ray | 1.15 Å | B=75-150 |
| 8SVH | X-ray | 1.16 Å | B=75-150 |
| 8SVG | X-ray | 1.21 Å | B=75-150 |
| 8SVJ | X-ray | 1.5 Å | B=75-150 |
| 6NXL | X-ray | 2.8 Å | A/B/C/D/E/F/G/H=76-150 |
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.