The co-factor for glycogen phosphorylase in glycogenolysis is:
Glycogen phosphorylase catalyses the rate limiting step in glycogenolysis by catalyzing the phosphorolytic cleavage of glycogen to yield glucose 1-phosphate. Glycogen phosphorylase requires pyridoxal phosphate as its coenzyme.
Thiamine pyrophosphate
Pyridoxal phosphate
Citrate
FAD