Human Interaction Network Ontology

Last uploaded: June 27, 2014
Preferred Name

8 UDP-glucose + glycogenin dimer => 8 UDP + {(1,4)-alpha-D-glucosyl}4 glycogenin dimer
Synonyms
Definitions

Glycogenin catalyzes its own reaction with UDP-glucose to synthesize an oligo (1,4)-alpha-D-glucosyl chain attached to itself (Mu et al. 1997; Mu and Roach 1998). The oligosaccharide is annotated here as containing four glucose residues. Glycogenin occurs as a homodimer associated with glycogen granules in the cytosol (Wilson et al. 2007).<p>Glycogenin proteins are encoded by two human genes, GYG1 and GYG2. Multiple isoforms of each protein due to alternative splicing have been described, but none of these isoforms has yet been associated with a distinctive function. GYG1 protein is abundant in skeletal muscle while GYG2 is abundant in liver. Human GYG2 has been characterized biochemically (Mu et al. 1997; Mu and Roach 1998) but while the role of human GYG1 in muscle glycogen metabolism during exercise has been studied (Wilson et al. 2007), details of its structure and catalytic activities are inferred from those of its rabbit homologue (e.g., Gibbons et al. 2002). has a Stoichiometric coefficient of 8

ID

http://purl.obolibrary.org/obo/HINO_0019118

comment

Glycogenin catalyzes its own reaction with UDP-glucose to synthesize an oligo (1,4)-alpha-D-glucosyl chain attached to itself (Mu et al. 1997; Mu and Roach 1998). The oligosaccharide is annotated here as containing four glucose residues. Glycogenin occurs as a homodimer associated with glycogen granules in the cytosol (Wilson et al. 2007).

Glycogenin proteins are encoded by two human genes, GYG1 and GYG2. Multiple isoforms of each protein due to alternative splicing have been described, but none of these isoforms has yet been associated with a distinctive function. GYG1 protein is abundant in skeletal muscle while GYG2 is abundant in liver. Human GYG2 has been characterized biochemically (Mu et al. 1997; Mu and Roach 1998) but while the role of human GYG1 in muscle glycogen metabolism during exercise has been studied (Wilson et al. 2007), details of its structure and catalytic activities are inferred from those of its rabbit homologue (e.g., Gibbons et al. 2002).

has a Stoichiometric coefficient of 8

definition source

Pubmed12051921

Pubmed17311895

Pubmed9857012

Reactome, http://www.reactome.org

Pubmed9346895

has input

http://purl.obolibrary.org/obo/HINO_0024014

http://purl.obolibrary.org/obo/CHEBI_18066

has output

http://purl.obolibrary.org/obo/HINO_0024009

http://purl.obolibrary.org/obo/CHEBI_17659

label

8 UDP-glucose + glycogenin dimer => 8 UDP + {(1,4)-alpha-D-glucosyl}4 glycogenin dimer

prefixIRI

HINO:0019118

prefLabel

8 UDP-glucose + glycogenin dimer => 8 UDP + {(1,4)-alpha-D-glucosyl}4 glycogenin dimer

seeAlso

EC Number: 2.4.1.186

Reactome Database ID Release 4370290

ReactomeREACT_1902

subClassOf

http://purl.obolibrary.org/obo/INO_0000040

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