FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

voltage-gated potassium channel activity

ID (Ontology)

GO:0005249 (Gene Ontology)

Definition

Enables the transmembrane transfer of a potassium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.[ ISBN:0815340729 ]

Also Known As

"voltage gated potassium channel activity" ; "voltage-dependent potassium channel activity" ; "voltage-gated potassium ion channel activity" (for all, see Synonyms field below)

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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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
voltage-gated potassium channel activity (all annotations which use CV term, excluding "NOT" statements)
enables \| voltage-gated potassium channel activity

Spanning Tree (Parents/Children)

voltage-gated monoatomic ion channel activity
 |__voltage-gated monoatomic cation channel activity__
monoatomic cation channel activity                    |
 |__potassium channel activity________________________|
 |__voltage-gated monoatomic cation channel activity__|
potassium ion transmembrane transporter activity      |
 |__potassium channel activity________________________|
                                                      voltage-gated potassium channel activity  27 rec.
                                                       |__delayed rectifier potassium channel activity 4 rec.
                                                       |__inward rectifier potassium channel activity 5 rec.
                                                       |   |__ATP-activated inward rectifier potassium channel activity
                                                       |   |__G-protein activated inward rectifier potassium channel activity
                                                       |__open rectifier potassium channel activity
                                                       |__outward rectifier potassium channel activity 13 rec.
                                                       |   |__A-type (transient outward) potassium channel activity 1 rec.
                                                       |__voltage-gated potassium channel activity involved in cardiac muscle cell action potential repolarization
                                                       |   |__voltage-gated potassium channel activity involved in atrial cardiac muscle cell action potential repolarization
                                                       |   |__voltage-gated potassium channel activity involved in bundle of His cell action potential repolarization
                                                       |   |__voltage-gated potassium channel activity involved in SA node cell action potential repolarization
                                                       |   |__voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization
                                                       |__voltage-gated potassium channel activity involved in SA node cell action potential depolarization

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	potassium channel activity voltage-gated monoatomic cation channel activity
Part of
Synonyms & Secondary IDs
Synonyms
	"voltage gated potassium channel activity" EXACT "voltage-dependent potassium channel activity" EXACT "voltage-gated potassium ion channel activity" EXACT "voltage-sensitive potassium channel" EXACT
Secondary IDs

External Crossreferences & Linkouts
	Reactome:R-HSA-1296127 "Activation of voltage gated Potassium channels" Reactome:R-HSA-9659554 "KCNQ4 transports K+ from the cytosol to the extracellular region" Reactome:R-HSA-9667761 "KCNMA1:KCNMB1:LRRC52 transports K+ from the cytosol to the extracellular region"