Gastrokine 1, or, GKN1, is a human gene. Other names include: Gastrokine-1; 18 kDa antrum mucosa protein; AMP-18; Protein CA11; BRICHOS domain containing 1; AMP18; BRICD1; CA11; FOV; foveolin. The encoded protein has an amino acid length of 199 and a mass of 22.0 kDa. Other isoforms may exist. Gastrokine 1 is a member of the Gastrokine family. This gene shares homology with other species, including: Mouse.