![]() The acid can lose one proton from its second carboxyl group to form the conjugate base, the singly-negative anion glutamate −OOC−CH( NH +Ģ) 2−COO −. However, in the solid state and mildly acidic water solutions, the molecule assumes an electrically neutral zwitterion structure −OOC−CH( NH +Ģ) 2−COOH. Its molecular structure could be idealized as HOOC−CH( NHĢ) 2−COOH, with two carboxyl groups −COOH and one amino group − NHĢ. ![]() Glutamic acid exists in three optically isomeric forms the dextrorotatory L-form is usually obtained by hydrolysis of gluten or from the waste waters of beet-sugar manufacture or by fermentation. It serves as the precursor for the synthesis of the inhibitory gamma-aminobutyric acid (GABA) in GABA-ergic neurons.Ĥ. It is also the most abundant excitatory neurotransmitter in the vertebrate nervous system. It is a non-essential nutrient for humans, meaning that the human body can synthesize enough for its use. Glutamic acid (symbol Glu or E the ionic form is known as glutamate) is an α- amino acid that is used by almost all living beings in the biosynthesis of proteins.
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