PYGL

This gene encodes a homodimeric protein that catalyses the cleavage of alpha-1,4-glucosidic bonds to release glucose-1-phosphate from liver glycogen stores. This protein switches from inactive phosphorylase B to active phosphorylase A by phosphorylation of serine residue 15. Activity of this enzyme is further regulated by multiple allosteric effectors and hormonal controls. Humans have three glycogen phosphorylase genes that encode distinct isozymes that are primarily expressed in liver, brain and muscle, respectively. The liver isozyme serves the glycemic demands of the body in general while the brain and muscle isozymes supply just those tissues. In glycogen storage disease type VI, also known as Hers disease, mutations in liver glycogen phosphorylase inhibit the conversion of glycogen to glucose and results in moderate hypoglycemia, mild ketosis, growth retardation and hepatomegaly. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Feb 2011]

Description

Glycogen phosphorylase L

Tissue specificity

Tissue enhanced (liver)

Subcell location

Plasma membrane, Cytosol

Predicted location

Intracellular

Protein family

Disease related genes
Enzymes
Human disease related genes
Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Metabolic proteins
Plasma proteins
Potential drug targets
Predicted intracellular proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)

Chromosome

14 (50857891 - 50944483)

Ensembl ID

ENSG00000100504  (ver. 103.38)

Orthologs

Mouse Pygl: ENSMUSG00000021069

UniProt

P06737

neXtProt

NX_P06737

Human splice variants
Mouse splice variants

Protein structure