› 2g9q

X-ray diffraction
2.5Å resolution

The crystal structure of the glycogen phosphorylase b- 1AB complex

Released:
DOI: 10.2210/pdb2g9q/pdb
PDB entry 2g9q coloured by chain, front view.
PDB entry 2g9q coloured by chain, side view.
PDB entry 2g9q coloured by chain, top view.
Source organism: Oryctolagus cuniculus
Primary publication:
Iminosugars as potential inhibitors of glycogenolysis: structural insights into the molecular basis of glycogen phosphorylase inhibition.
Oikonomakos NG, Tiraidis C, Leonidas DD, Zographos SE, Kristiansen M, Jessen CU, Nørskov-Lauritsen L, Agius L
J Med Chem 49 5687-701 (2006)
PMID: 16970395

Function and Biology Details

Reaction catalysed: 
((1->4)-alpha-D-glucosyl)(n) + phosphate = ((1->4)-alpha-D-glucosyl)(n-1) + alpha-D-glucose 1-phosphate
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-132556 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Glycogen phosphorylase, muscle form Chain: A
Molecule details ›
Chain: A
Length: 842 amino acids
Theoretical weight: 97.52 KDa
Source organism: Oryctolagus cuniculus
UniProt:
  • Canonical: P00489 (Residues: 2-843; Coverage: 100%)
Gene name: PYGM
Sequence domains: Carbohydrate phosphorylase
Structure domains: Glycogen Phosphorylase B;

Ligands and Environments

2 bound ligands:
Ligand PO4 3 x PO4
Ligand 1AB 1 x 1AB
1 modified residue:
Ligand LLP 1 x LLP

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH3R
Spacegroup: P43212
Unit cell:
a: 128.712Å b: 128.712Å c: 117.442Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.192 0.19 0.243

Quick links

Citations

3 review citations

New hepatic targets for glycaemic control in diabetes.
Agius L. (2007)
2 more