domain:Aquaporins contain two tandem repeats each containing three membrane-spanning domains and a pore-forming loop with the signature motif Asn-Pro-Ala (NPA).,function:Forms a water-specific channel. Implicated in the generation of saliva, tears, and pulmonary secretions.,similarity:Belongs to the MIP/aquaporin (TC 1.A.8) family.,
Apical cell membrane ; Multi-pass membrane protein . Cell membrane ; Multi-pass membrane protein . Cytoplasmic vesicle membrane ; Multi-pass membrane protein . Hypotonicity increases location at the cell membrane. Phosphorylation decreases location at the cell membrane. .
Detected in skin eccrine sweat glands, at the apical cell membrane and at intercellular canaliculi (at protein level).
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