GABA is an agonist of two main receptor classes in the CNS: GABAA, an ionic ligand gated channel, and GABAB, a metabotrophic, G-protein coupled receptor. GABAA is assembled by 5 out of 16 possible subunits with α, β and either a γ or a δ (2:2:1 stoichiometry) being the most common. With an EC50 between 3 - 12μM it interacts with GABA to allow either an influx or an efflux of Cl- ions, into and out of the cell, respectively3. GABAB is a heterodimer comprised of the subunits GABAB1 and GABAB2. It reduces neurotransmitter release by inhibiting Ca2+ channels when activated presynaptically, and facilitates inward rectifying potassium channels, postsynaptically.
产品描述
A Ligand of GABA(A), GABA(B) Receptors and GABA Transporters
产品形式
γ-aminobutyric acid (GABA) is an amino acid derivate, synthesized from glutamate by the pyridoxal-L-phosphate (PLP)-dependent enzyme, glutamate decarboxylase (GAD). GABA provides the primary inhibitory signaling in the adult mammalian brain (CNS), and, to some degree of controversy, exerts a depolarizing response in the developing brain.