Nitrogen permease regulator 3 (NPR3) is a 1146-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P38742.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 61.1 (low 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 | 23% |
| 70 to 90 | Confident: backbone generally right | 23% |
| 50 to 70 | Low: treat with caution | 5% |
| Below 50 | Very low: often disordered regions | 49% |
What pLDDT means and how to read it
Component of the SEA complex which coats the vacuolar membrane and is involved in intracellular trafficking, autophagy, response to nitrogen starvation, and amino acid biogenesis. Mediates inactivation of the TORC1 complex in response to amino acid starvation. Required for meiotic nuclear division
Component of the SEA complex composed of at least IML1/SEA1, RTC1/SEA2, MTC5/SEA3, NPR2, NPR3, SEA4, SEC13 and SEH1. Forms a heterodimer with NPR2
Vacuole membrane
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 8AE6 | EM | 2.7 Å | U=1-1146 |
| 8ADL | EM | 2.95 Å | U/V=1-1146 |
| 9H4Q | EM | 3.1 Å | h=1-1146 |
| 9H5K | EM | 3.2 Å | h/i=1-1146 |
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.