aqpZ
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
Channel that permits osmotically driven movement of water in both directions. It is involved in the osmoregulation and in the maintenance of cell turgor during volume expansion in rapidly growing cells. It mediates rapid entry or exit of water in response to abrupt changes in osmolarity.
Sequence Similarities
Belongs to the MIP/aquaporin (TC 1.A.8) family.
Cellular localization
- Cell inner membrane
- Multi-pass membrane protein
Alternative names
bniP, b0875, JW0859, aqpZ, Aquaporin Z, Bacterial nodulin-like intrinsic protein, Water channel AqpZ