Official Full Name
BackgroundKeratin 9 is a protein that in humans is encoded by the KRT9 gene. This gene encodes the type I keratin 9, an intermediate filament chain expressed only in the terminally differentiated epidermis of palms and soles. Mutations in this gene cause epidermolytic palmoplantar keratoderma.
SynonymsKRT9; keratin 9; keratin, type I cytoskeletal 9; CK 9; cytokeratin 9; epidermolytic palmoplantar keratoderma; EPPK; K9; type I cytoskeletal 9; keratin-9; cytokeratin-9; CK-9;