Preferred Label : Osteogenesis imperfecta, type ix;
Symbol : OI9;
CISMeF acronym : OI9;
Type : Phenotype, molecular basis known;
Alternative titles and symbols : Oi, type ix;
Description : Osteogenesis imperfecta is a connective tissue disorder characterized clinically by
bone fragility and increased susceptibility to fractures. Osteogenesis imperfecta
type IX is a severe autosomal recessive form of the disorder (summary by van Dijk
et al., 2009).;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the peptidyl-prolyl isomerase B gene (PPIB, 123841.0001);