Tyrosine-protein phosphatase non-receptor type 18 (PTPN18) is a 460-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q99952.
Explore in 3D Color by confidence AlphaFold DB UniProt
The mean pLDDT of this model is 76.5 (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 | 61% |
| 70 to 90 | Confident: backbone generally right | 4% |
| 50 to 70 | Low: treat with caution | 5% |
| Below 50 | Very low: often disordered regions | 30% |
What pLDDT means and how to read it
Differentially dephosphorylate autophosphorylated tyrosine kinases which are known to be overexpressed in tumor tissues
Interacts with PSTPIP1
Nucleus, Cytoplasm
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 2OC3 | X-ray | 1.5 Å | A=6-299 |
| 4GFU | X-ray | 2.0 Å | A=6-300 |
| 4GFV | X-ray | 2.1 Å | A/B=6-300 |
| 4NND | X-ray | 2.5 Å | A/B/D/G=6-295 |
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.