Fig. 2From: Recent advances in the biosynthesis and industrial biotechnology of Gamma-amino butyric acidMetabolic pathway of GABA production from the TCA cycle. TCA tricarboxylic acid cycle, GDH glutamate dehydrogenase, GAD glutamate decarboxylase, GABA γ-aminobutyric acid, GABA-AT γ-aminobutyric acid aminotransferase, SSADH succinic semialdehyde dehydrogenaseBack to article page