FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

extracellular ligand-gated monoatomic ion channel activity

ID (Ontology)

GO:0005230 (Gene Ontology)

Definition

Enables the transmembrane transfer of an ion by a channel that opens when a specific extracellular ligand has been bound by the channel complex or one of its constituent parts.[ ISBN:0815340729 ]

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

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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_MOLECULAR_FUNCTION

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	Genes
extracellular ligand-gated monoatomic ion channel activity (all annotations which use CV term, excluding "NOT" statements)
contributes_to \| extracellular ligand-gated monoatomic ion channel activity
enables \| extracellular ligand-gated monoatomic ion channel activity

Spanning Tree (Parents/Children)

monoatomic ion channel activity__
ligand-gated channel activity____|
                                 ligand-gated monoatomic ion channel activity
                                  |__extracellular ligand-gated monoatomic ion channel activity  53 rec.
                                      |__excitatory extracellular ligand-gated monoatomic ion channel activity 22 rec.
                                      |   |__acetylcholine-gated monoatomic cation-selective channel activity 12 rec.
                                      |   |__extracellularly ATP-gated monoatomic cation channel activity
                                      |   |__extracellularly glutamate-gated ion channel activity(+) 2 rec.
                                      |   |__extracellularly glycine-gated ion channel activity(+) 1 rec.
                                      |__extracellular ammonia-gated monoatomic ion channel activity 1 rec.
                                      |__extracellular phenylacetaldehyde-gated monoatomic ion channel activity 2 rec.
                                      |__inhibitory extracellular ligand-gated monoatomic ion channel activity
                                      |   |__extracellularly glycine-gated chloride channel activity
                                      |__transmitter-gated monoatomic ion channel activity 43 rec.
                                          |__GABA-gated chloride ion channel activity 4 rec.
                                          |__glutamate-gated receptor activity(+) 16 rec.
                                          |__glycine-gated cation channel activity
                                          |__glycine-gated chloride ion channel activity 3 rec.
                                          |__serotonin-gated chloride channel activity
                                          |__serotonin-gated monoatomic cation channel activity
                                          |__transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential(+) 32 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	ligand-gated monoatomic ion channel activity
Part of
Synonyms & Secondary IDs
Synonyms
	"extracellular ligand-gated ion channel activity" BROAD
Secondary IDs

External Crossreferences & Linkouts