Sapropterin (tetrahydrobiopterin or BH4) is a cofactor in the synthesis of nitric oxide. It is also essential in the conversion of phenylalanine to tyrosine by the enzyme phenylalanine-4-hydroxylase; the conversion of tyrosine to L-dopa by the enzyme tyrosine hydroxylase; and conversion of tryptophan to 5-hydroxytryptophan via tryptophan hydroxylase.
For the treatment of tetrahydrobiopterin (BH4) deficiency.
Atlanta VA Medical Center, Decatur, Georgia, United States
Emory University Hospital, Atlanta, Georgia, United States
Children's Hospital of Philadelphia, Section of Metabolism,PKU program, Philadelphia, Pennsylvania, United States
University of Missouri, Columbia, Missouri, United States
UCSD Mitochondrial and Metabolic Disease Center, San Diego, California, United States
The Children's Health Council, Palo Alto, California, United States
Johns Hopkins University, Baltimore, Maryland, United States
Department of Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom
The Kennedy Institute-National Eye Clinic, Glostrup, Copenhagen, Denmark
Emory University, Atlanta, Georgia, United States
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