Catalyzes the production of GABA. Homodimer. Isoform 3 is expressed in pancreatic islets, testis, adrenal cortex, and perhaps other endocrine tissues, but not in brain. Belongs to the group II decarboxylase family. 3 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Lyase; Other Amino Acids Metabolism - taurine and hypotaurine; Mitochondrial; EC 18.104.22.168; Amino Acid Metabolism - alanine, aspartate and glutamate; Carbohydrate Metabolism - butanoate; Other Amino Acids Metabolism - beta-alanine
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.