Gene Information
Gene NameCLCA4
OrganismHomo sapiens (Human)
Gene Length919
Protein NamesCalcium-activated chloride channel regulator 4 (EC 3.4.-.-) (Calcium-activated chloride channel family member 4) (hCLCA4) (Calcium-activated chloride channel protein 2) (CaCC-2) (hCaCC-2) (Chloride channel accessory 4) [Cleaved into: Calcium-activated chloride channel regulator 4, 110 kDa form; Calcium-activated chloride channel regulator 4, 30 kDa form]
Target NameNA
Target TypeNA
Gene Age132 ( ENSG00000016602 )
Evolutionary StageEumetazoa
AlphaFoldDBQ14CN2
Gene CardCLCA4
Uniprot IDQ14CN2
PfamPF08434; PF00092
In ASDno
Allosteric Predictionno (-0.999941894)
Ortholog in AnimalsAlpaca_ CLCA4 ( ortholog_one2one )
Dog_ CLCA4 ( ortholog_one2one )
Macaque_ CLCA4 ( ortholog_one2one )
Mouse_ Clca4b ( ortholog_one2many )
Mouse_ Clca4a ( ortholog_one2many )
Rat_ Clca4 ( ortholog_one2one )
OhnologsNA
ParalogsCLCA1, CLCA2
Tissuecolon, esophagus, rectum, appendix, cervix, tongue, sigmoid.colon, esophagus.mucosa
Tissue SpecificityPrimarily expressed in the digestive tract, mainly in colon. Detected in smaller amounts in brain, urogenital organs, testis, and salivary and mammary glands. Highly expressed in the epithelial layer and submucosal gland of the inferior turbinate mucosa. Lower levels in the epithelial layer of nasal polyp. {ECO:0000269|PubMed:10437792, ECO:0000269|PubMed:15490240, ECO:0000269|PubMed:16012037}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs2231580  rs2839932  rs1011048  rs2231604 
Subcellular location [CC]Cell membrane {ECO:0000250};
Single-pass membrane protein {ECO:0000250}. Apical cell membrane {ECO:0000250}. Secreted {ECO:0000250}. Note=The C-terminus 30 kDa form is anchored to the membrane. The N-terminus 110 kDa form is released from the membrane triggered by an unknown stimulus. {ECO:0000250}.
Mouse PG classificationNA
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