NCIt synonyms : Amino Acid Channel; Amino Acid Transport Protein;
NCIt definition : Amino Acid Transporter proteins carry organic compounds containing an amino (-NH2)
and a carboxyl (-COOH) group through solubility barriers, such as aqueous body fluids,
lipid membranes or across epithelial layers. After binding substrate, transmembrane
transporters often undergo an energy-dependent conformational change that moves the
substrate across the membrane with (symport) or against (antiport) concentration gradients.;