Gene
Entrez ID Entrez Gene ID - the GENE ID in NCBI Gene database.
2643
Gene name Gene Name - the full gene name approved by the HGNC.
GTP cyclohydrolase 1
Gene symbol Gene Symbol - the official gene symbol approved by the HGNC.
GCH1
Synonyms (NCBI Gene) Gene synonyms aliases
DYT14, DYT5, DYT5a, GCH, GTP-CH-1, GTPCH1, HPABH4B
Disease Acronyms (UniProt) Disease acronyms from UniProt database
HPABH4B
Chromosome Chromosome number
14
Chromosome location Chromosomal Location - indicates the cytogenetic location of the gene or region on the chromosome.
14q22.2
Summary Summary of gene provided in NCBI Entrez Gene.
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
SNPs SNP information provided by dbSNP.
SNP ID Visualize variation Clinical significance Consequence
rs41298440 G>A Pathogenic Intron variant, coding sequence variant, stop gained
rs41298442 T>C,G Pathogenic, uncertain-significance, likely-pathogenic Intron variant, coding sequence variant, missense variant
rs56127440 G>A,C Likely-benign, conflicting-interpretations-of-pathogenicity, uncertain-significance, benign-likely-benign Genic upstream transcript variant, coding sequence variant, missense variant
rs104894433 G>A,C,T Pathogenic Missense variant, coding sequence variant, synonymous variant, genic upstream transcript variant
rs104894434 A>G Pathogenic Missense variant, intron variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
miRTarBase ID miRNA Experiments Reference
MIRT002772 hsa-miR-1-3p Microarray 15685193
MIRT018241 hsa-miR-335-5p Microarray 18185580
MIRT022842 hsa-miR-124-3p Microarray 18668037
MIRT002772 hsa-miR-1-3p Microarray;Other 15685193
MIRT024891 hsa-miR-215-5p Microarray 19074876
Gene ontology (GO) Gene ontology information of associated ontologies with gene provided by GO database.
GO ID Ontology Definition Evidence Reference
GO:0003924 Function GTPase activity IDA 2463916
GO:0003934 Function GTP cyclohydrolase I activity IBA 21873635
GO:0003934 Function GTP cyclohydrolase I activity IDA 7730309, 7874165, 16778797
GO:0005509 Function Calcium ion binding IEA
GO:0005515 Function Protein binding IPI 9092499, 16696853, 19294699, 21988832, 32296183
Other IDs Other ids provides unique ids of gene in databases such as OMIM, HGNC, ENSEMBLE.
MIM HGNC e!Ensembl
600225 4193 ENSG00000131979
Protein
UniProt ID P30793
Protein name GTP cyclohydrolase 1 (EC 3.5.4.16) (GTP cyclohydrolase I) (GTP-CH-I)
Protein function Positively regulates nitric oxide synthesis in umbilical vein endothelial cells (HUVECs). May be involved in dopamine synthesis. May modify pain sensitivity and persistence. Isoform GCH-1 is the functional enzyme, the potential function of the e
PDB 1FB1 , 6Z80 , 6Z85 , 6Z86 , 6Z87 , 6Z88 , 6Z89 , 7ALA , 7ALB , 7ALC , 7ALQ
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF01227 GTP_cyclohydroI 71 249 GTP cyclohydrolase I Domain
Tissue specificity TISSUE SPECIFICITY: In epidermis, expressed predominantly in basal undifferentiated keratinocytes and in some but not all melanocytes (at protein level). {ECO:0000269|PubMed:16778797}.
Sequence
Sequence length 250
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG   Reactome
  Folate biosynthesis
Metabolic pathways
Biosynthesis of cofactors
  Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation
Associated diseases Disease information provided by ClinVar, GenCC, and GWAS databases.
Causal
Disease term Disease name dbSNP ID References
6-pyruvoyl-tetrahydropterin synthase deficiency 6-pyruvoyl-tetrahydropterin synthase deficiency rs104894273, rs104894274, rs104894275, rs104894276, rs104894277, rs104894280, rs1555198165, rs62642937, rs74486803, rs77958223, rs62514909, rs199475647, rs199475679, rs62514931, rs62514957
View all (30 more)
Developmental delay Global developmental delay rs28941770, rs199469464, rs281865469, rs143747297, rs398123009, rs587777428, rs786205133, rs606231459, rs797044854, rs797045027, rs864309504, rs878853160, rs886039902, rs886042046, rs886041291
View all (32 more)
Dystonia, dopa-responsive, with or without hyperphenylalaninemia DYSTONIA, DOPA-RESPONSIVE, WITH OR WITHOUT HYPERPHENYLALANINEMIA, AUTOSOMAL RECESSIVE (disorder) rs2140074192, rs137852633
Gtp cyclohydrolase i deficiency GTP cyclohydrolase I deficiency rs104894276, rs104894443, rs104894445, rs1418922853, rs1566658823, rs41298440, rs1595031768
Unknown
Disease term Disease name Evidence References Source
Mental depression Depressive disorder ClinVar
GTP Cyclohydrolase I Deficiency GTP cyclohydrolase I deficiency with hyperphenylalaninemia, GTP cyclohydrolase I deficiency GenCC
Dystonia dystonia 5 GenCC
Parkinson Disease Parkinson Disease GWAS
Associations from Text Mining
Disease Name Relationship Type References
Acute Lung Injury Stimulate 38071255
Acute Pain Associate 30031848
Alzheimer Disease Associate 29432188
Anemia Sickle Cell Associate 24136375, 30031848
Anxiety Associate 27871051
Anxiety Disorders Associate 26945673
Atherosclerosis Associate 21969008
Cardiovascular Diseases Associate 24136375, 31082861, 36012132
Cerebral Infarction Associate 21963893
Cerebral Palsy Associate 21935284