ATP-dependent RNA helicase HAS1 (HAS1) is a 505-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q03532.
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The mean pLDDT of this model is 80.9 (confident 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 | 41% |
| 70 to 90 | Confident: backbone generally right | 42% |
| 50 to 70 | Low: treat with caution | 6% |
| Below 50 | Very low: often disordered regions | 11% |
What pLDDT means and how to read it
ATP-dependent RNA helicase involved in 40S ribosomal subunit biogenesis. Required for the processing and cleavage of 35S pre-rRNA at sites A0, A1, and A2, leading to mature 18S rRNA
Interacts with RRP1. Associates in the nucleolus with the 60S and pre-60S ribosomal subunits. It has also been isolated with the nuclear pore complex
Nucleus, nucleolus
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 8V83 | EM | 2.53 Å | D=1-505 |
| 8V87 | EM | 2.66 Å | D=1-505 |
| 8V84 | EM | 2.7 Å | D=1-505 |
| 7R6Q | EM | 2.98 Å | D=1-505 |
| 7NAC | EM | 3.04 Å | D=1-505 |
| 7R7A | EM | 3.04 Å | D=1-505 |
| 6EM3 | EM | 3.2 Å | D=1-505 |
| 6ELZ | EM | 3.3 Å | D=1-505 |
| 7OHX | EM | 3.3 Å | D=1-505 |
| 7OHW | EM | 3.5 Å | D=1-505 |
| 6EM1 | EM | 3.6 Å | D=1-505 |
| 5Z3G | EM | 3.65 Å | Y=1-505 |
| 6C0F | EM | 3.7 Å | p=1-505 |
| 7OHP | EM | 3.9 Å | D=1-505 |
| 7OHV | EM | 3.9 Å | D=1-505 |
| 8E5T | EM | 4.0 Å | p=1-505 |
| 6EM4 | EM | 4.1 Å | D=1-505 |
| 6EM5 | EM | 4.3 Å | D=1-505 |
| 7OHS | EM | 4.38 Å | D=1-505 |
| 6CB1 | EM | 4.6 Å | p=1-505 |
Showing 20 of 21 experimental structures (best resolution first).
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