Gene Information
Gene NameAQP4
OrganismHomo sapiens (Human)
Gene Length323
Protein NamesAquaporin-4 (AQP-4) (Mercurial-insensitive water channel) (MIWC) (WCH4)
Target NameNA
Target TypeNA
Gene Age645 ( ENSG00000171885 )
Evolutionary StageEukaryota
AlphaFoldDBP55087
Gene CardAQP4
Uniprot IDP55087
PfamPF00230
In ASDno
Allosteric Predictionyes (0.262328164)
Ortholog in AnimalsAlpaca_ AQP4 ( ortholog_one2one )
Dog_ AQP4 ( ortholog_one2one )
GuineaPig_ AQP4 ( ortholog_one2one )
Macaque_ AQP4 ( ortholog_one2one )
Mouse_ Aqp4 ( ortholog_one2one )
Pig_ AQP4 ( ortholog_one2one )
Rat_ Aqp4 ( ortholog_one2one )
Rabbit_ AQP4 ( ortholog_one2one )
OhnologsAQP6, MINDY4, MIP, AQP5, AQP2
ParalogsMIP, AQP3, AQP1, AQP5, AQP6, AQP10, AQP8, AQP7B, AQP7, AQP9, AQP2
Tissuebrain, cerebral.cortex, lung
Tissue SpecificityDetected in skeletal muscle (PubMed:29055082). Detected in stomach, along the glandular base region of the fundic gland (at protein level) (PubMed:8601457). Detected in brain, lung and skeletal muscle, and at much lower levels in heart and ovary (PubMed:7559426, PubMed:8601457). {ECO:0000269|PubMed:29055082, ECO:0000269|PubMed:7559426, ECO:0000269|PubMed:8601457}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 3GD8  (X-ray  1.80A 
DBSNP NA 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:7559426, ECO:0000269|PubMed:8601457};
Multi-pass membrane protein {ECO:0000269|PubMed:19383790}. Basolateral cell membrane {ECO:0000250|UniProtKB:P55088};
Multi-pass membrane protein {ECO:0000269|PubMed:19383790}. Endosome membrane {ECO:0000250|UniProtKB:P47863}. Cell membrane, sarcolemma {ECO:0000269|PubMed:29055082};
Multi-pass membrane protein {ECO:0000269|PubMed:19383790}. Cell projection {ECO:0000250|UniProtKB:P47863}. Note=Activation of the vasopressin receptor AVPR1A triggers AQP4 phosphorylation at Ser-180 and promotes its internalization from the cell membrane. Detected on brain astrocyte processes and astrocyte endfeet close to capillaries. {ECO:0000250|UniProtKB:P47863}.
Mouse PG classificationNA
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