Glutamic acid (Glu, E or glutamate) is one of the 22 amino acids of which proteins are made.
Structure of glutamic acid
Like all amino acids, glutamic acid has two functional groups: a carboxyl group (COOH) and an amine group (NH2). It has the following side chain: -CH2-CH2-COOH.
It is therefore a dicarboxylic polar acid amino acid.
Function of glutamic acid
As glutamic acid can be synthesised by the body from alpha-ketoglutarate, it is not an essential amino acid.
Glutamic acid is the most widely found neurotransmitter in the body.
Glutamic acid is an amino acid and also an important neuromediator (carbon in black, oxygen in red, nitrogen in blue and hydrogen in white). © Photohound, public domain