Glycogen phosphorylase, muscle form (PYGM) is a 843-residue protein from Oryctolagus cuniculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P00489.
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The mean pLDDT of this model is 93.9 (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 | 87% |
| 70 to 90 | Confident: backbone generally right | 8% |
| 50 to 70 | Low: treat with caution | 4% |
| Below 50 | Very low: often disordered regions | 1% |
What pLDDT means and how to read it
Allosteric enzyme that catalyzes the rate-limiting step in glycogen catabolism, the phosphorolytic cleavage of glycogen to produce glucose-1-phosphate, and plays a central role in maintaining cellular and organismal glucose homeostasis
Homodimer. Homotetramer; to form the enzymatically active phosphorylase A
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 7P7D | X-ray | 1.45 Å | A=8-837 |
| 2GJ4 | X-ray | 1.6 Å | A=13-836 |
| 7ONF | X-ray | 1.6 Å | A=13-837 |
| 5LRF | X-ray | 1.75 Å | A=2-843 |
| 1C8K | X-ray | 1.76 Å | A=2-843 |
| 1H5U | X-ray | 1.76 Å | A=2-843 |
| 1A8I | X-ray | 1.78 Å | A=2-843 |
| 5MEM | X-ray | 1.78 Å | A=1-843 |
| 1K06 | X-ray | 1.8 Å | A=2-843 |
| 1WW3 | X-ray | 1.8 Å | A=2-843 |
| 2QNB | X-ray | 1.8 Å | A=2-843 |
| 2QRQ | X-ray | 1.8 Å | A=2-843 |
| 4YI3 | X-ray | 1.8 Å | A=1-843 |
| 4YI5 | X-ray | 1.8 Å | A=1-843 |
| 5LRD | X-ray | 1.8 Å | A=1-843 |
| 5LRE | X-ray | 1.8 Å | A=2-843 |
| 5OX4 | X-ray | 1.8 Å | A=1-843 |
| 7Q5I | X-ray | 1.8 Å | AAA=1-843 |
| 1XC7 | X-ray | 1.83 Å | A=2-843 |
| 2QN7 | X-ray | 1.83 Å | A=2-843 |
Showing 20 of 230 experimental structures (best resolution first).
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