FBP1 is a symbol for the gene, Fructose-bisphosphatase 1, in humans. Other names include: Fructose-1,6-bisphosphatase 1; FBPase 1; D-fructose-1,6-bisphosphate 1-phosphohydrolase 1; Liver FBPase. The encoded protein is an enzyme with an amino acid length of 338 and a mass of 36.8 kDa. Other isoforms may exist. FBP1 is a member of the FBPase class 1 family. This gene shares homology with other species, including: Fly, Mouse, Yeast, Rat, Zebrafish, Frog, Chicken.