Glycogen is a polysaccharide of glucose and serves as an energy storage in mammalian muscle and liver. Glycogen synthase catalyzes the rate-limiting step of glycogen biosynthesis and has two major isoforms in mammals -- muscle isoform (GYS1) and liver isoform (GYS2) respectively. Glycogen synthase kinase-3alpha (GSK-3alpha) and glycogen synthase kinase-3beta (GSK-3beta) phosphorylate glycogen synthase at multiple sites in its C-terminus (Ser641, Ser645, Ser649 and Ser653) inhibiting its activity. Hypoxia alters glycogen metabolism including temporal changes of GYS1 expression and phosphorylation in cancer cells, suggesting the role of metabolic reprogramming of glycogen metabolism in cancer growth.
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).
Form:
Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2.
Application Dilute:
WB: 1:500~1:1000
Application Notes:
GYS (P539) polyclonal antibody detects endogenous levels of GYS protein.
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