Leukotriene C4 Synthase is a human gene encoded by the symbol, LTC4S. It may also be known as: LTC4 synthase; Leukotriene-C(4) synthase. The encoded protein is an enzyme with an amino acid length of 150 and a mass of 16.6 kDa. Other isoforms may exist. Leukotriene C4 Synthase is a member of the MAPEG family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.