Importin subunit alpha-1a (Os01g0253300) is a 526-residue protein from Oryza sativa subsp. japonica. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q71VM4.
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The mean pLDDT of this model is 87.0 (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 | 77% |
| 70 to 90 | Confident: backbone generally right | 3% |
| 50 to 70 | Low: treat with caution | 5% |
| Below 50 | Very low: often disordered regions | 14% |
What pLDDT means and how to read it
Functions in nuclear protein import. Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. Promotes docking of import substrates to the nuclear envelope
Forms a complex with importin subunit beta-1. The whole complex, most stable and composed of importin alpha, importin beta and NLS substrate, is referred to as PTAC or pore targeting complex. Interacts with mungbean yellow mosaic virus capsid protein
Cytoplasm, perinuclear region
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 4B8J | X-ray | 2.0 Å | A=1-526 |
| 4BQK | X-ray | 2.0 Å | A/B=73-526 |
| 4B8O | X-ray | 2.08 Å | A=73-526 |
| 2YNS | X-ray | 2.1 Å | A/B=73-526 |
| 4B8P | X-ray | 2.3 Å | A/B=73-526 |
| 4BPL | X-ray | 2.3 Å | A=73-526 |
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