Vesicular inhibitory amino acid transport Authored: Jassal, B, 2009-07-06 Edited: Jassal, B, 2009-07-06 Gamma-Aminobutyric acid (GABA) is the major inhibitory<br>transmitter of the vertebrate retina. The gene SLC32A1 encodes the vesicular inhibitory amino acid transporter (VIAAT, also called vesicular GABA transporter VGAT) (Jellali A et al, 2002). VIAAT is a proton-coupled amino acid antiporter, uptaking the inhibitory neurotransmitters GABA and glycine into synaptic vesicles in exchange for protons. This process is driven by the H+-ATPase, providing the driving force for uptake of these neurotransmitters. The protein is expressed throughout the terminal ends of horizontal cells of the retina.<br> Pubmed12115694 Reactome Database ID Release 43428625 Reactome, http://www.reactome.org ReactomeREACT_19142 Reviewed: He, L, 2009-08-24 Inhibitory amino acids Inhibitory amino acids