Gene Information
Gene NameKCNN4
OrganismHomo sapiens (Human)
Gene Length427
Protein NamesIntermediate conductance calcium-activated potassium channel protein 4 (SK4) (SKCa 4) (SKCa4) (IKCa1) (IK1) (KCa3.1) (KCa4) (Putative Gardos channel)
Target Namecalcium-activated potassium channel
Target TypeNA
Gene Age680 ( ENSG00000104783 )
Evolutionary StageEukaryota
AlphaFoldDBO15554
Gene CardKCNN4
Uniprot IDO15554
PfamPF02888; PF07885; PF03530
In ASDyes
Allosteric Predictionyes (1.116148925)
Ortholog in AnimalsAlpaca_ KCNN4 ( ortholog_one2one )
Dog_ KCNN4 ( ortholog_one2one )
GuineaPig_ KCNN4 ( ortholog_one2one )
Macaque_ KCNN4 ( ortholog_one2one )
Mouse_ Kcnn4 ( ortholog_one2one )
Pig_ KCNN4 ( ortholog_one2one )
Rat_ Kcnn4 ( ortholog_one2one )
Rabbit_ KCNN4 ( ortholog_one2one )
OhnologsNA
ParalogsKCNN3, KCNN1, KCNN2
Tissueminor.salivary.gland
Tissue SpecificityWidely expressed in non-excitable tissues.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 6CNM  (EM  3.40A  6CNN  (EM  3.50A  6CNO  (EM  4.70A  6D42  (X-ray  1.75A 
DBSNP rs1057519077  rs1057519076  rs774455945 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:26148990};
Multi-pass membrane protein {ECO:0000255}.
Mouse PG classificationHPG
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