GPAT2 is a symbol for the gene, Glycerol-3-phosphate acyltransferase 2, mitochondrial, in humans. Other names include: GPAT-2; xGPAT1; cancer/testis antigen 123; CT123. The encoded protein is an enzyme with an amino acid length of 795 and a mass of 87.8 kDa. Other isoforms may exist. GPAT2 is a member of the GPAT/DAPAT family. This gene shares homology with other species, including: Mouse, Rat, Arabidopsis, Zebrafish, Frog, Chicken.