Preferred Label : Osteogenesis Imperfecta, type I;
Symbol : OI1;
CISMeF acronym : OI1;
Type : Phenotype, molecular basis known;
Alternative titles and symbols : Oi, type I; Osteogenesis imperfecta with blue sclerae; Osteogenesis imperfecta tarda;
Description : Osteogenesis imperfecta type I is a dominantly inherited, generalized connective tissue
disorder characterized mainly by bone fragility and blue sclerae. In most cases, 'functional
null' alleles of COL1A1 on chromosome 17 or COL1A2 on chromosome 7 lead to reduced
amounts of normal collagen I.;
Inheritance : Autosomal dominant;
Molecular basis : Caused by mutation in the collagen I, alpha-1 polypeptide gene (COL1A1, 120150.0024);