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Proteins/UNIPROT:P46976
Glycogenin participates in the glycogen biosynthetic process along with glycogen synthase and glycogen branching enzyme. It catalyzes the formation of a short alpha (1,4)-glucosyl chain covalently attached via a glucose 1-O-tyrosyl linkage to internal tyrosine residues and these chains act as primers for the elongation reaction catalyzed by glycogen synthase..
Function from UniProtKB (P46976), read 2026-09-23. CC BY 4.0.
Curated compounds routed: 0
2 rows
151 statements
151 statements · 5 reference databases · Subject: GYG1 · Sources: Hetionet, Reactome, Rhea, UniProt, WikiPathways
4 reactions
MAM01996c+8MAM03108cMAM01995c+8proton+8UDP
Reaction pageLeft to rightBalancedEC 2.4.1.186cytosol
Human-GEM MAR05395CC BY 4.0Reference data
MAM01995c+3MAM03108cMAM01990c+3proton+3UDP
Catalysed by GYG2 or
3 names
Resolves to: GYG1
Reaction pageLeft to rightBalancedEC 2.4.1.11cytosol
Human-GEM MAR05396CC BY 4.0Reference data
L-tyrosyl-[glycogenin]+UDP-alpha-D-glucosealpha-D-glucosyl-L-tyrosyl-[glycogenin]+UDP+hydron
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:23360CC BY 4.0Reference data
[1,4-alpha-D-glucosyl](n)-L-tyrosyl-[glycogenin]+UDP-alpha-D-glucose[1,4-alpha-D-glucosyl](n+1)-L-tyrosyl-[glycogenin]+UDP+hydron
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:56560CC BY 4.0Reference data