Ubiquitin B (UBB) is a 93-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Jun 2022. UniProt accession: J3QS39.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 93.3 (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 | 82% |
| 70 to 90 | Confident: backbone generally right | 16% |
| 50 to 70 | Low: treat with caution | 2% |
| Below 50 | Very low: often disordered regions | 0% |
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 |
|---|---|---|---|
| 3PRP | X-ray | 1.7 Å | B/D=1-75 |
| 6NJG | X-ray | 2.35 Å | C=1-78 |
| 9NY4 | EM | 2.98 Å | U=1-76 |
| 9KQO | EM | 3.48 Å | B=1-75 |
| 6NOG | EM | 3.9 Å | L=1-76 |
| 7QO6 | EM | 6.3 Å | 9=1-76 |
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.