PYG

An enzyme that catalyzes the degradation of GLYCOGEN in animals by releasing glucose-1-phosphate from the terminal alpha-1,4-glycosidic bond. This enzyme exists in two forms: an active phosphorylated form ( PHOSPHORYLASE A) and an inactive un-phosphorylated form (PHOSPHORYLASE B). Both a and b forms of phosphorylase exist as homodimers. In mammals, the major isozymes of glycogen phosphorylase are found in muscle, liver and brain tissue. (mesh:D024981)

Cross-references

Synonyms

Synonym Reference Specificity
glycogen phosphorylase Exact
PYG Exact
glycogen phosphorylases Exact
Glycogen phosphorylases Exact
Glycogen phosphorylase Exact

Incoming Relations

Identifier Name Relation
HGNC:9726 PYGM isa
HGNC:9725 PYGL isa
HGNC:9723 PYGB isa

Outgoing Relations

Relation Identifier Name
isa FPLX:Glycosyltransferase Glycosyltransferase