Aquaporin: a water channel. aquaporins form pores in the membranes of cells and selectively conduct water molecules through the membrane, while preventing the passage of ions (such as sodium and potassium) and other small molecules. aquaporins are typically composed of identical subunit proteins.. Aquaporins are integral membrane proteins that serve as channels in the transfer of water, and in some cases, small solutes across the membrane. they are conserved in bacteria, plants, and animals. structural analyses of the molecules have revealed the presence of a pore in the center of each aquaporin molecule.. Aquaporins are specifically active in endothelial and epithelial tissues. structural analyses of aquaporins molecules have revealed the presence of a pore in the center of each aquaporin molecule. aquaporins are hydrophobic integral trans-membrane channel proteins implicated in cellular proliferation and water transport in various cancers..
Aquaporins are integral membrane proteins from a larger family of major intrinsic proteins that form pores in the membrane of biological cells. genetic defects involving aquaporin genes have been associated with several human diseases.. Aquaporins are membrane water channels that play critical roles in controlling the water contents of cells. these channels are widely distributed in all kingdoms of life, including bacteria, plants, and mammals..
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