40S ribosomal protein S4 (KLLA0_B03652g) is a 261-residue protein from Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37). This is its AlphaFold structure prediction, created 1 Jun 2022. UniProt accession: Q6CWJ2.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 95.0 (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 | 96% |
| 70 to 90 | Confident: backbone generally right | 3% |
| 50 to 70 | Low: treat with caution | 1% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
Component of the small ribosomal subunit (SSU). Mature yeast ribosomes consist of a small (40S) and a large (60S) subunit. The 40S small subunit contains 1 molecule of ribosomal RNA (18S rRNA) and 33 different proteins (encoded by 57 genes). The large 60S subunit contains 3 rRNA molecules (25S, 5.8S and 5S rRNA) and 46 different proteins (encoded by 81 genes)
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6FYY | EM | 3.02 Å | E=1-261 |
| 8RW1 | EM | 3.35 Å | E=1-261 |
| 8S8D | EM | 3.45 Å | E=1-261 |
| 3JAM | EM | 3.46 Å | E=1-261 |
| 6FYX | EM | 3.5 Å | E=1-261 |
| 5IT7 | EM | 3.6 Å | E=2-261 |
| 6UZ7 | EM | 3.6 Å | E=1-261 |
| 3J80 | EM | 3.75 Å | E=1-261 |
| 5IT9 | EM | 3.8 Å | E=2-261 |
| 8S8E | EM | 3.85 Å | E=1-261 |
| 8S8F | EM | 3.95 Å | E=1-261 |
| 3J81 | EM | 4.0 Å | E=1-261 |
| 8S8G | EM | 4.0 Å | E=1-261 |
| 8S8H | EM | 4.0 Å | E=1-261 |
| 8S8K | EM | 4.0 Å | E=1-261 |
| 8S8I | EM | 4.3 Å | E=1-261 |
| 8I7J | EM | 4.6 Å | E=1-261 |
| 8S8J | EM | 4.7 Å | E=1-261 |
| 3JAP | EM | 4.9 Å | E=1-261 |
| 6GSM | EM | 5.15 Å | E=2-261 |
Showing 20 of 21 experimental structures (best resolution first).
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.