Bruck Syndrome 1, also known as kuskokwim disease, is related to bruck syndrome and brittle bone disorder. An important gene associated with Bruck Syndrome 1 is FKBP10 (FKBP Prolyl Isomerase 10), and among its related pathways/superpathways is Type I collagen synthesis in the context of osteogenesis imperfecta. Affiliated tissues include bone, and related phenotypes are gait disturbance and joint stiffness