FB2026_03 , released September 17, 2026
CV Term Report
Help Close All Open All
General Information
Term alpha-1,3-mannosylglycoprotein 2-beta-N-acetylglucosaminyltransferase activity ID (Ontology) GO:0003827 (Gene Ontology)
Definition Catalysis of the reaction: 3-(alpha-D-mannosyl)-beta-D-mannosyl-R + UDP-N-acetyl-alpha-D-glucosamine = 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R + H+ + UDP.[ EC:2 ]
Also Known As"alpha-1,3-mannosylglycoprotein beta-1,2-N-acetylglucosaminyltransferase activity"
Comment
Links to External Ontologies
  QuickGO data     AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

    • Results list data from multiple species. Choose a record type above to open its HitList.
Direct annotations: records annotated with this exact term (child terms are NOT included)
Data ClassFieldDirect annotations
Genes (FBgn)GO_MOLECULAR_FUNCTION
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Genes
 alpha-1,3-mannosylglycoprotein 2-beta-N-acetylglucosaminyltransferase activity (all annotations which use CV term, excluding "NOT" statements)
     enables | alpha-1,3-mannosylglycoprotein 2-beta-N-acetylglucosaminyltransferase activity
Spanning Tree (Parents/Children)
Only view relationship:
Vocabulary search 
UDP-glycosyltransferase activity
 |__acetylglucosaminyltransferase activity________
hexosyltransferase activity                       |
 |__acetylglucosaminyltransferase activity________|
catalytic activity, acting on a protein           |
 |__catalytic activity, acting on a glycoprotein__|
                                                  alpha-1,3-mannosylglycoprotein 2-beta-N-acetylglucosaminyltransferase activity  1 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a acetylglucosaminyltransferase activity
catalytic activity, acting on a glycoprotein
Part of
hide Synonyms & Secondary IDs
Synonyms
  • "alpha-1,3-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase activity" RELATED[ EC:2 ]
    "alpha-1,3-mannosyl-glycoprotein beta-1,2-N-acetylglucosaminyltransferase activity" RELATED[ EC:2 ]
    "alpha-1,3-mannosylglycoprotein beta-1,2-N-acetylglucosaminyltransferase activity" EXACT
    "GnTI" RELATED[ EC:2 ]
    "GNTI activity" RELATED[ EC:2 ]
    "N-acetylglucosaminyltransferase I activity" RELATED[ EC:2 ]
    "N-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase I activity" RELATED[ EC:2 ]
    "UDP-N-acetyl-D-glucosamine:3-(alpha-D-mannosyl)-beta-D-mannosyl-glycoprotein 2-beta-N-acetyl-D-glucosaminyltransferase activity" RELATED[ EC:2 ]
    "UDP-N-acetylglucosaminyl:alpha-1,3-D-mannoside-beta-1,2-N-acetylglucosaminyltransferase I activity" RELATED[ EC:2 ]
    "UDP-N-acetylglucosaminyl:alpha-3-D-mannoside beta-1,2-N-acetylglucosaminyltransferase I activity" RELATED[ EC:2 ]
    "uridine diphosphoacetylglucosamine-alpha-1,3-mannosylglycoprotein beta-1,2-N-acetylglucosaminyltransferase activity" RELATED[ EC:2 ]
Secondary IDs
hide External Crossreferences & Linkouts
EC:2.4.1.101
KEGG_REACTION:R05983
MetaCyc:2.4.1.101-RXN
Reactome:R-HSA-964768 "Addition of GlcNAc to the glycan on the A arm"
RHEA:11456