CNIH4 is a symbol for the gene, Cornichon family AMPA receptor auxiliary protein 4, in humans. Other names include: Protein cornichon homolog 4; CNIH-4; HSPC163. The encoded protein has an amino acid length of 139 and a mass of 16.1 kDa. Other isoforms may exist. CNIH4 is a member of the Cornichon family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.