TRPA1 is a symbol for the gene, Transient receptor potential cation channel, subfamily A, member 1, in humans. Other names include: Transient receptor potential cation channel subfamily A member 1; Transformation-sensitive protein p120; Ankyrin-like with transmembrane domains protein 1; ANKTM1; FEPS. The encoded protein has an amino acid length of 1119 and a mass of 127.5 kDa. Other isoforms may exist. TRPA1 is a member of the Transient receptor (TC 1.A.4) family. This gene shares homology with other species, including: Fly, Mouse, Rat, Zebrafish, Frog, Chicken.