amino acid biosynthetic process GABA biosynthetic process https://github.com/geneontology/go-ontology/issues/31732 gamma-aminobutyric acid biosynthetic process 4-aminobutanoate biosynthesis GABA biosynthesis See also the biological process term 'neurotransmitter biosynthetic process ; GO:0042136' and 'GABA shunt ; GO:0006540'. 4-aminobutyrate biosynthetic process 4-aminobutanoate biosynthetic process gamma-aminobutyric acid biosynthesis gamma-aminobutyric acid anabolism biological_process GO:0009449 The chemical reactions and pathways resulting in the formation of gamma-aminobutyric acid (GABA, 4-aminobutyrate), an amino acid which acts as a neurotransmitter in some organisms. gamma-aminobutyric acid formation gamma-aminobutyric acid synthesis Reactome:R-HSA-888568 4-aminobutyrate biosynthesis non-proteinogenic amino acid biosynthetic process