poly((1,4)-alpha-glycosyl) glycogenin-1 + n orthophosphate => glycogenin-1 + n D-glucose 1-phosphate [PYGM,PYGB]
poly((1,4)-alpha-glucosyl)GYG1 dimer + Pi → GYG1 dimer + G1P
- Reactome
- R-HSA-453358
- Compartment
- cytosol
- Rhea
- RHEA:41733
Inputs
- poly((1,4)-alpha-glucosyl)GYG1 dimerR-HSA-453217, cytosol
- PiCHEBI:43474, HO4P, cytosol
Outputs
- GYG1 dimerR-HSA-70203, cytosol
- G1PCHEBI:58601, C6H11O9P, cytosol
Catalysed by
- glycogen phosphorylase activity of active PYGM and PYGB dimers [cytosol]EC 2.4.1.1
Literature
- Activation of human liver glycogen phosphorylase by alteration of the secondary structure and packing of the catalytic core Mol Cell, 2000
- The family of glycogen phosphorylases: structure and function Crit Rev Biochem Mol Biol, 1989