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Gene Protein Transcript Promoter Expression GO/PPI PubMed Cross reference

Gene information for GCH1 (Homo sapiens)
(Information is obtained from NCBI Gene database)
Entrez gene ID2643
Official gene symbolGCH1
Full nameGTP cyclohydrolase 1
Aliases,DYT14,DYT5,DYT5a,GCH,GTP-CH-1,GTPCH1,HPABH4B,
Gene summaryThis 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]
LocationChromosome: 14   Locus: 14q22.1-q22.2
Gene position55369542 - 55308723  Map Viewer
Gene orientationminus
Gene size60820 bp
Gene sequence
OMIM ID600225