FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
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General Information
Term glycogenin glucosyltransferase activity ID (Ontology) GO:0008466 (Gene Ontology)
Definition Catalysis of the reaction: UDP-glucose + glycogenin = UDP + glucosylglycogenin. This first reaction is a self glucosylation. Further UDP-glucose goups are added to the [1,4-alpha-D-glucosyl](n) group of glycogenin until a length of about 5-13 residues.
Also Known As "1,4alpha-glucan-protein synthase (UDP-forming) activity" ; "alpha-1,4-glucan-protein synthase (UDP-forming) activity"
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Data Class Field Records
Genes (FBgn)  GO_MOLECULAR_FUNCTION       1
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 Genes
 glycogenin glucosyltransferase activity (all annotations which use CV term, excluding "NOT" statements)       1
     enables | glycogenin glucosyltransferase activity       1
Spanning Tree (Parents/Children)
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UDP-glycosyltransferase activity__
glucosyltransferase activity______|
                                  UDP-glucosyltransferase activity
                                   |__glycogenin glucosyltransferase activity  1 rec.
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Is a UDP-glucosyltransferase activity
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Synonyms
  • "1,4alpha-glucan-protein synthase (UDP-forming) activity" EXACT
    "alpha-1,4-glucan-protein synthase (UDP-forming) activity" EXACT
    "glycogenin activity" RELATED[ EC:2 ]
    "priming glucosyltransferase activity" RELATED[ EC:2 ]
    "UDP-alpha-D-glucose:glycogenin alpha-D-glucosyltransferase activity" RELATED[ EC:2 ]
    "UDP-glucose:glycogenin glucosyltransferase activity" RELATED[ EC:2 ]
Secondary IDs
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EC:2.4.1.186
MetaCyc:GLYCOGENIN-GLUCOSYLTRANSFERASE-RXN
MetaCyc:RXN-7667
Reactome:R-HSA-3322003 "Autoglucosylation of GYG1 complexed with GYS1-b"
Reactome:R-HSA-3322014 "Autoglucosylation of GYG2 complexed with GYS2-a"
Reactome:R-HSA-3322019 "Autoglucosylation of GYG2 complexed with GYS2-b"
Reactome:R-HSA-3322025 "Autoglucosylation of GYG1 complexed with GYS1-a"
Reactome:R-HSA-3814838 "Defective GYG1 is not autoglucosyolated"
RHEA:23360
RHEA:56560