Keratin 7 is an alias for the gene, Keratin 7, type II, in humans. Other names include: Keratin, type II cytoskeletal 7; Cytokeratin-7; CK-7; Keratin-7; Sarcolectin; Type-II keratin Kb7; cytokeratin 7; keratin, 55K type II cytoskeletal; CK7; K2C7. The encoded protein has an amino acid length of 469 and a mass of 51.4 kDa. Other isoforms may exist. Keratin 7 is a member of the Intermediate filament family. This gene shares homology with other species, including: Mouse, Chicken.