Article
Extending diagnostic practices in gyrate atrophy: Enzymatic characterization and the development of an in vitro pyridoxine responsiveness assay.
Molecular genetics and metabolism - 1 Jan 2000
Balfoort Berith M, Pampalone Gioena, Ruiter Jos P N, Denis Simone W, Brands Marion M, Timmer Corrie, Wagenmakers Margreet A E M, Wanders Ronald J A, van Karnebeek Clara D, Cellini Barbara, Houtkooper Riekelt H, Ferdinandusse Sacha
Abstract excerpt
Gyrate atrophy of the choroid and retina (GACR) is caused by pathogenic biallelic variants in the gene encoding ornithine-δ-aminotransferase (OAT), and is characterized by progressive vision loss leading to blindness. OAT is a pyridoxal-5'-phosphate (PLP) dependent enzyme that is mainly involved in ornithine catabolism, and patients with a deficiency develop profound hyperornithinemia. Therapy is aimed at...
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