Animals Aquaporins Water aquaporin priority journal unclassified drug Cell Membrane Fragaria Gene Expression Regulation, Plant Hydrogen-Ion Concentration Oocytes Plant Proteins Protein Multimerization acidification cell membrane channel gating pH protein expression protein function protein interaction regulatory mechanism water permeability Bacterial Proteins Cytosol Lipid Bilayers Luminescent Proteins Microscopy, Confocal Models, Theoretical Mutagenesis, Site-Directed Permeability