Xylosyltransferase 1 (XYLT1) is a 959-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q86Y38.
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The mean pLDDT of this model is 81.4 (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 | 69% |
| 70 to 90 | Confident: backbone generally right | 5% |
| 50 to 70 | Low: treat with caution | 3% |
| Below 50 | Very low: often disordered regions | 24% |
What pLDDT means and how to read it
Catalyzes the first step in the biosynthesis of chondroitin sulfate and dermatan sulfate proteoglycans, such as DCN. Transfers D-xylose from UDP-D-xylose to specific serine residues of the core protein (PubMed:15461586, PubMed:17189265, PubMed:23982343, PubMed:24581741). Required for normal embryonic and postnatal skeleton development, especially of the long bones (PubMed:23982343, PubMed:24581741). Required for normal maturation of chondrocytes during bone development, and normal onset of ossification (By similarity)
Monomer
Golgi apparatus membrane, Secreted
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6FOA | X-ray | 1.87 Å | A=232-959 |
| 6EJA | X-ray | 1.94 Å | A=232-959 |
| 6EJ7 | X-ray | 2.0 Å | A=232-959 |
| 6EJ9 | X-ray | 2.02 Å | A=232-959 |
| 6EJC | X-ray | 2.06 Å | A=232-959 |
| 6EJ8 | X-ray | 2.09 Å | A=232-959 |
| 6EJE | X-ray | 2.43 Å | A=232-959 |
| 6EJB | X-ray | 2.56 Å | A=232-959 |
| 6EJD | X-ray | 2.68 Å | A=232-959 |
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