Gyrate atrophy of choroid and retinaOMIM Phenotype
Preferred Label : Gyrate atrophy of choroid and retina;
Symbol : GACR;
CISMeF acronym : GACR; HOGA;
Type : Phenotype, molecular basis known;
Alternative titles and symbols : Okt deficiency; Ornithine-delta-aminotransferase deficiency; Ornithine aminotransferase deficiency; Ornithine keto acid aminotransferase deficiency; Hyperornithinemia with gyrate atrophy of choroid and retina; Oat deficiency; HOGA; Gyrate atrophy;
Description : Gyrate atrophy of the choroid and retina due to deficiency of ornithine aminotransferase
is clinically characterized by a triad of progressive chorioretinal degeneration,
early cataract formation, and type II muscle fiber atrophy. Characteristic chorioretinal
atrophy with progressive constriction of the visual fields leads to blindness at the
latest during the sixth decade of life. Patients generally have normal intelligence
(summary by Peltola et al., 2002). See 238970 for another hyperornithinemia syndrome.;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the ornithine aminotransferase gene (OAT, 258870.0001);