Developmental expression of the neurotransmitter transporter GAT3.
Neurotransmitter transporters are involved in termination of the synaptic neurotransmission and they also play a key role in neuroregulation and brain development. In this report, we describe the developmental distribution of the y-aminobutyric acid transporter GAT3 which transports gamma-aminobutyric acid (GABA) and beta-alanine in a sodium chloride-dependent manner. GAT3 was localized to the meninges in developmental stages where two other GABA transporters, GAT1 and GAT4, were adjacently expressed. In later developmental stages, only GAT3 remained in this area. The expression of GAT3 in the peripheral embryonic tissues was confined to the liver, to a layer of cells under the skin, to the mouse kidney, and to hipoccampal blood vessels only in late developmental stages. The developmental distribution of GAT3 suggests involvement in central nervous system (CNS) maturation.
Jursky
F
F
Department of Biochemistry, Tel Aviv University, Ramat Aviv, Israel.
Nelson
N
N
D000818:Animals; D001921:Brain / Q000378:metabolism; D002352:Carrier Proteins / Q000235:genetics / Q000378:metabolism*; D050485:GABA Plasma Membrane Transport Proteins; D018507:Gene Expression Regulation, Developmental; D006168:Guinea Pigs; D007668:Kidney / Q000378:metabolism; D008565:Membrane Proteins / Q000378:metabolism; D026901:Membrane Transport Proteins; D051379:Mice; D027361:Organic Anion Transporters; D051381:Rats; D013116:Spinal Cord / Q000378:metabolism
D002352:Carrier Proteins; D050485:GABA Plasma Membrane Transport Proteins; D008565:Membrane Proteins; D026901:Membrane Transport Proteins; D027361:Organic Anion Transporters; C079264:Slc6a11 protein, mouse; C493414:Slc6a1 protein, mouse; C493415:Slc6a1 protein, rat; C493417:Slc6a11 protein, rat; C493419:Slc6a13 protein, mouse