Amino Acid Biosynthesis

**Semantic type:** Molecular Function

**Definition:** Amino Acid Biosynthesis consists of cellular enzymatic reactions that produce amino acids, organic compounds containing an amino and a carboxyl group and often used in protein synthesis by the formation of peptide bonds during ribosomal translation of mRNA. Several important amino acids, such as the neurotransmitter g-aminobutyric acid, have other functions than protein synthesis.