This gene encodes a member of the GTP cyclohydrolase family. The encoded protein is the first and rate-limiting enzyme in tetrahydrobiopterin (BH4) biosynthesis, catalyzing the conversion of GTP into 7,8-dihydroneopterin triphosphate. BH4 is an essential cofactor required by aromatic amino acid hydroxylases as well as nitric oxide synthases. Mutations in this gene are associated with malignant hyperphenylalaninemia and dopa-responsive dystonia. Several alternatively spliced transcript variants encoding different isoforms have been described\; however, not all variants give rise to a functional enzyme. [provided by RefSeq, Jul 2008].
custom-made
GCH1
宿主: 人
宿主: Cell-free protein synthesis (CFPS)
Recombinant
approximately 70-80 % as determined by SDS PAGE, Western Blot and analytical SEC (HPLC).
ELISA, WB, SDS