Overview

Variant ID 18585
Entrez Gene ID 2643
Gene GCH1 (GeneCards)
Location hg19 14:55335345-55335345
hg38 14:54868627-54868627
Disease Cockayne syndrome (view all the variants in this disease)
Method HiSeq X Ten
Mutation(HGVS format) NC_000014.8:g.55335345 A>T (Genome Assembly: GRCh37)

Other information

Exon or Intron NA
Position in protein NA
Amino acid changes in protein NA > NA
Position in cDNA NA
Changes in cDNA NA > NA
mRNA accession NA
mRNA length NA
Reference length 107349540

Annotations and predictions

MAF in gnomAD genome (version 2.0.1) 0
EIGEN score -0.3917
CADD Raw score (version 1.3) -0.338163 (Deleterious)
FATHMM raw prediction score 0.06722 (Tolerated)
Deleterious probability by DeFine 0.1314 (Neutral)
Entrez Gene ID 2643 (NCBI Gene)
Official Gene Symbol GCH1 (GeneCards)
Number of variants in GCH1 in this database 2 (view all the variants)
Full name GTP cyclohydrolase 1
Band 14q22.2
Other IDs Vega: OTTHUMG00000029754
OMIM: 600225
HGNC: HGNC:4193
Ensembl: ENSG00000131979
Other names GCH, DYT5, DYT14, DYT5a, GTPCH1, HPABH4B, GTP-CH-1
Summary 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]

Individual #1

Individual ID 29217584.16 (view all the variants in this individual)
Pubmed ID 29217584
Whose mosaic mutation Female Patient  
Phenotype 3  
Disease Cockayne syndrome (view all the variants in this disease)
OMIM ID 216400

Publication #1: 29217584

Pubmed ID 29217584
Title Aging and neurodegeneration are associated with increased mutations in single human neurons.
Journal Science
Publication date 2018.02
Disease Cockayne syndrome Xeroderma Pigmentosum
Number of cases Male cases: 3; Female cases: 6; cases of unknown sex: 15;