Keratin 9

Keratin 9 is a is_associated_with::protein that in humans is encoded by the KRT9 is_associated_with::gene.

Keratin 9 is a is_associated_with::type I cytokeratin. It is found only in the terminally differentiated epidermis of palms and soles. Mutations in the gene encoding this protein cause is_associated_with::epidermolytic palmoplantar keratoderma.