FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex

ID (Ontology)

GO:0000506 (Gene Ontology)

Definition

An enzyme complex that catalyzes the transfer of GlcNAc from UDP-GlcNAc to an acceptor phosphatidylinositol, the first step in the production of GPI anchors for cell surface proteins. The complex contains PIG-A, PIG-C, PIG-H, PIG-Q, PIG-P, and DPM2 in human, and Eri1p, Gpi1p, Gpi2p, Gpi15p, Gpi19p, and Spt14p in budding yeast.[ PubMed:10944123 PubMed:15163411 ]

Also Known As

"GPI-GlcNAc transferase complex" ; "GPI-GnT complex" ; "GPI-N-acetylglucosaminyltransferase complex"

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 Class	Field	Direct annotations
Genes (FBgn)	GO_CELLULAR_COMPONENT

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Gene Groups	Genes
glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex (all annotations which use CV term, excluding "NOT" statements)
part_of \| glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex	--

Spanning Tree (Parents/Children)

endoplasmic reticulum
 |__endoplasmic reticulum protein-containing complex___________
membrane                                                       |
 |__membrane protein complex___________________________________|
organelle membrane                                             |
 |__endoplasmic reticulum membrane_____________________________|
protein-containing complex                                     |
 |__membrane protein complex___________________________________|
 |__endoplasmic reticulum protein-containing complex___________|
nuclear outer membrane-endoplasmic reticulum membrane network  |
 |__endoplasmic reticulum membrane_____________________________|
endoplasmic reticulum subcompartment                           |
 |__endoplasmic reticulum membrane_____________________________|
catalytic complex                                              |
 |__transferase complex________________________________________|
                                                               glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex  6 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	membrane protein complex endoplasmic reticulum protein-containing complex transferase complex
Part of	endoplasmic reticulum membrane
Synonyms & Secondary IDs
Synonyms
	"GPI-GlcNAc transferase complex" EXACT "GPI-GnT complex" EXACT "GPI-N-acetylglucosaminyltransferase complex" EXACT
Secondary IDs

External Crossreferences & Linkouts