osteogenesis imperfecta type IV
osteogenesis imperfecta type IV
[MIM*166220]COL1A2
A gene on chromosome 7q21.3 that encodes the pro-alpha2 chain of type-I collagen, the triple-helix (two-alpha1, one-alpha2 chain) form of collagen found in most connective tissue and abundant in bone, cornea, dermis and tendon.Molecular pathology
COL1A2 mutations occur in osteogenesis imperfecta types I–IV, Ehlers-Danlos syndrome type VIIB, autosomal recessive Ehlers-Danlos syndrome (classic type), idiopathic osteoporosis and atypical Marfan syndrome.