Version 2.80

Description

The GCH1 gene (GTP cyclohydrolase 1) [HGNC Gene ID:4193] is located on chromosome 14q22.1-q22.2. 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] [NCBI Gene ID:2643] Source: National Center for Biotechnology Information (NCBI) Gene

Reference Information

Type Source Reference
Webcontent Online Mendelian Inheritance in Man®Copyright OMIM® and Online Mendelian Inheritance in Man® are registered trademarks of the Johns Hopkins University. Link to OMIM

Basic Part Properties

Part Name
GCH1 gene
Part Display Name
GCH1 gene
Part Type
Component (Describes the core component or analyte measured)
Created On
2008-10-01
Construct for LOINC Short Name
GCH1 gene

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=LP71424-3
ConceptMap translate
https://fhir.loinc.org/ConceptMap/$translate?system=http://loinc.org&code=LP71424-3

Language Variants Get Info

Tag Language Translation
es-ES Spanish (Spain) Gen GCH1
it-IT Italian (Italy) GCH1, gene
Synonyms: Gene GCH1
et-EE Estonian (Estonia) GCH1 geen
zh-CN Chinese (China) GCH1 基因
Synonyms: DYT14;DYT5;DYT5a;GCH;GTP-CH-1;GTPCH1;HPABH4B;guanosine 5''-triphosphate cyclohydrolase I;GTP cyclohydrolase 1;鸟嘌呤核苷 5''-三磷酸环水解酶 I;鸟苷 5''-三磷酸环水解酶 I;GTP 环水解酶 1;GTP 环化水解酶 1;GTP 环式水解酶 1
tr-TR Turkish (Turkey) GCH1 geni
ru-RU Russian (Russian Federation) GCH1 ген
nl-NL Dutch (Netherlands) GCH1-gen
Synonyms: GCH1 gen
el-GR Greek (Greece) Γονίδιο GCH1
Synonyms: Γονίδιο GCH1