AQP1: Forms a water-specific channel that provides the plasma membranes of red cells and kidney proximal tubules with high permeability to water, thereby permitting water to move in the direction of an osmotic gradient. Belongs to the MIP/aquaporin (TC 1.A.8) family.
Protein type: Transporter, aquaporin family; Membrane protein, multi-pass; Transporter; Membrane protein, integral
Cellular Component: neuron projection; nuclear membrane; brush border membrane; cell; integral to plasma membrane; basolateral plasma membrane; integral to membrane; dense core granule membrane; membrane; apical part of cell; axon; cytoplasm; apical plasma membrane; plasma membrane; basal plasma membrane; nerve terminal; nucleus; brush border; sarcolemma
Molecular Function: potassium channel activity; ephrin receptor binding; water transporter activity; transporter activity; ammonium transmembrane transporter activity; intracellular cGMP activated cation channel activity; potassium ion transmembrane transporter activity; glycerol transmembrane transporter activity; transmembrane transporter activity; nitric oxide transporter activity; water channel activity; glycerol channel activity
Biological Process: glycerol transport; cGMP biosynthetic process; wound healing; carbon dioxide transport; cellular response to stress; water transport; negative regulation of caspase activity; sensory perception of pain; positive regulation of saliva secretion; water homeostasis; positive regulation of fibroblast proliferation; organic cation transport; nitric oxide transport; transport; cellular homeostasis; transmembrane transport; potassium ion transport; lipid digestion; secretion by cell; response to drug; cellular water homeostasis; secretory granule organization and biogenesis; glomerular filtration; ammonium transport; renal water transport; positive regulation of angiogenesis; camera-type eye morphogenesis; adrenocorticotropin hormone secretion; establishment and/or maintenance of actin cytoskeleton polarity; cell volume homeostasis; negative regulation of apoptosis; positive regulation of cell migration
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