CK7 (Keratin, type II cytoskeletal 7) is a member of the keratin family. It is specifically e, Xenopus/Amphibian,pressed in the simple epithelia lining the cavities of the internal organs and in the gland ducts and blood vessels. The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains coe, Xenopus/Amphibian,pressed during differentiation of simple and stratified epithelial tissues. This type II cytokeratin is specifically e, Xenopus/Amphibian,pressed in the simple epithelia lining the cavities of the internal organs and in the gland ducts and blood vessels.