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  2. GCH1 - GTP cyclohydrolase 1 Gene

GCH1 - GTP cyclohydrolase 1 Gene

Homo sapiens

Also known as GCH; DYT5; DYT14; DYT5a; GTPCH1; HPABH4B; GTP-CH-1

Gene ID: 2643 | Gene type: protein coding

About GCH1

Cytogenetic location: 14q22.2 Genomic coordinates (GRCh38): 14:54,842,017-54,902,826 (from NCBI)

This gene has 6 transcripts (splice variants), 215 orthologues and is associated with 6 phenotypes. Broad expression in liver (RPKM 22.0), bone marrow (RPKM 9.4) and 19 other tissues.

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]

GCH1 Products(4)

mRNA Protein Name
NM_000161.3 NP_000152.1 GTP cyclohydrolase 1 isoform 1
NM_001024024.2 NP_001019195.1 GTP cyclohydrolase 1 isoform 1
NM_001024070.2 NP_001019241.1 GTP cyclohydrolase 1 isoform 2
NM_001024071.2 NP_001019242.1 GTP cyclohydrolase 1 isoform 3

GCH1 Protein Structure

GTP_cyclohydroI

GTP_cyclohydroI: GTP cyclohydrolase I (73 - 249)

  • 0
  • 100
  • 200
  • 250 a.a.
Protein Preferred Names Protein Names

GTP cyclohydrolase 1

GTP cyclohydrolase I

Related Diseases

Diseases Alias
Hyperphenylalaninemia, Bh4-Deficient, B

Gtp Cyclohydrolase I Deficiency

HPABH4B

Hyperphenylalaninemia, Tetrahydrobiopterin-Deficient, Due To Gtp Cyclohydrolase I Deficiency

Bh4-Deficient Hyperphenylalaninemia B

Gtp Cyclohydrolase 1 Deficiency

Tetrahydrobiopterin-Deficient Hyperphenylalaninemia B

Hyperphenylalaninemia, Tetrahydrobiopterin-Deficient, Due To Gtp Cyclohydrolase 1 Deficiency

Gtpch Deficiency

Hyperphenylalaninemia Due To Gtp Cyclohydrolase Deficiency

Atypical Severe Phenylketonuria Due To Gtp Cyclohydrolase I Deficiency

Gch1 Deficiency

Guanosine Triphosphate Cyclohydrolase I Deficiency

Hyperphenylalaninemia With Neopterin Deficiency

Dystonia, Dopa-Responsive

Dystonia 5

Dopa-Responsive Dystonia

DRD

Dyt5

Dystonia-Parkinsonism With Diurnal Fluctuation

Dyt-Th

Hpd With Diurnal Fluctuation

Hereditary Progressive Dystonia With Diurnal Fluctuation

Dystonia, Progressive, With Diurnal Variation

Segawa Syndrome, Autosomal Dominant

Dystonia, Dopa-Responsive, Autosomal Dominant

Dopa-Responsive Dystonia, Autosomal Dominant

Dystonia, Dopa-Responsive, With Or Without Hyperphenylalaninemia

Dyt-Gch1

Dyt-Spr

Dystonia 5, Dopa-Responsive Type

Hereditary Progressive Dystonia With Marked Diurnal Fluctuation

Autosomal Dominant Dopa-Responsive Dystonia

Autosomal Dominant Segawa Syndrome

Dystonia-5

Progressive Dystonia With Diurnal Fluctuation

Dystonia, Type 5, Dopa-Responsive Type

Gtp Cyclohydrolase 1-Deficient Dopa-Responsive Dystonia

Autosomal Dominant Dopa-Responsive Dystonia

Autosomal Dominant Segawa Syndrome

Dyt5a

Hereditary Progressive Dystonia With Marked Diurnal Fluctuation

Gtpch1-Deficient Drd

Gtpch1-Deficient Dopa-Responsive Dystonia

Dopa-Responsive Dystonia, With Or Without Hyperphenylalaninemia

Dyt-Gch1

Dyt/Park-Gch1

Dopa-Responsive Dystonia Autosomal Dominant Segawa Syndrome

Hpd With Marked Diurnal Fluctuation

Dopa-Responsive Dystonia

Segawa Syndrome, Autosomal Recessive

Tyrosine Hydroxylase Deficiency

Dystonia, Dopa-Responsive, Autosomal Recessive

Parkinsonism, Infantile, Autosomal Recessive

Segawa Syndrome, Recessive

Dyt5b

Th-Deficient Drd

Tyrosine Hydroxylase-Deficient Dopa-Responsive Dystonia

Autosomal Recessive Infantile Parkinsonism

Autosomal Recessive Dopa-Responsive Dystonia

Autosomal Recessive Dopa Responsive Dystonia

Dopa-Responsive Dystonia, Autosomal Recessive

Dopa Responsive Dystonia, Autosomal Recessive

Dyt/Park-Th

Dystonia, Dopa Responsive, Autosomal Recessive

Th Deficiency

Autosomal Recessive Segawa Syndrome

Thy

Segawa Syndrome Autosomal Recessive

ARSEGS

Thd

Dystonia, Dopa-Responsive, With Or Without Hyperphenylalaninemia, Autosomal Recessive

Dystonia

Dystonic Disease

Dystonic Disorder

Dystonia Disorders

Neuroleptic Dyskinesia

Oromandibular Dystonia
Hyperphenylalaninemia

Hyperphenylalaninaemia

Tetrahydrobiopterin Deficiency

Hyperphenylalaninemia Due To Tetrahydrobiopterin Deficiency

Hyperphenylalaninemia, Non-Phenylketonuric

Non-Phenylketonuric Hyperphenylalaninemia

Bh4 Deficiency

Hyperphenylalaninemia Caused By A Defect In Biopterin Metabolism

Hyperphenylalaninemia Due To Bh4 Deficiency

Hyperphenylalaninemia, Bh4-Deficient, A

6-Pyruvoyl-Tetrahydropterin Synthase Deficiency

Pts Deficiency

HPABH4A

Hyperphenylalaninemia, Tetrahydrobiopterin-Deficient, Due To Pts Deficiency

Ptsd

Bh4-Deficient Hyperphenylalaninemia A

Hyperphenylalaninemia Due To 6-Pyruvoyltetrahydropterin Synthase Deficiency

Tetrahydobioperin-Deficient Hyperphenylalaninemia Due To Pts Deficiency

Hyperphenylalanemia, Bh4-Deficient, A

Hyperphenylalaninemia Due To 6-Pyruvoyl-Tetrahydropterin Synthase Deficiency

6-Pyruvoyltetrahydropterin Synthase Deficiency

Hyperphenylalaninemia Tetrahydrobiopterin-Deficient Due To Pts Deficiency

Ptpsd

Hyperphenylalaninemia, Bh4-Deficient, Type A

Hereditary Dystonia

Dystonia Hereditary

Familial Dystonia

Parkinsonism

Parkinsonism-Plus

Idiopathic Parkinsonism

Primary Parkinsonism

Paralysis Agitans Syndrome

Parkinsonian Syndrome

Trembling Paralysis

Paralysis Agitans

Shaking Palsy

Shaking Paralysis

Movement Disease

Movement Disorders

Movement Disorder

Phenylketonuria

Phenylalanine Hydroxylase Deficiency

PKU

Pah Deficiency

Folling Disease

Maternal Phenylketonuria

Phenylketonurias

Oligophrenia Phenylpyruvica

Hyperphenylalaninemia, Non-Pku Mild

Folling'S Disease

Phenylalaninemia

Mild Phenylketonuria

Mild Pku

Variant Pku

Variant Phenylketonuria

Mpku

Deficiency Disease, Phenylalanine Hydroxylase

Phenylketonuria, Maternal

Phenylalanine Hydroxylase Deficiency Disease

Hyperphenylalaninemic Embryopathy

Maternal Pku

Maternal Hyperphenylalaninemia

Phenylketonuric Embryopathy

Hyperphenylalaninemia

HPA

Non-Phenylketonuria Hyperphenylalaninemia

NON-PKU HPA

Phenylketonuria Maternal

Classical Phenylketonuria

Hyperphenylalaninaemia

Pku - [Phenylketonuria]

Oculogyric Crisis
Segmental Dystonia
Thiamine Metabolism Dysfunction Syndrome 2

Biotin-Responsive Basal Ganglia Disease

Basal Ganglia Disease, Biotin-Responsive

THMD2

Bbgd

Btbgd

Encephalopathy, Thiamine-Responsive

Thiamine Metabolism Dysfunction Syndrome 2, Biotin- Or Thiamine-Responsive Type

Thiamine-Responsive Encephalopathy

Hemidystonia
Dystonia, Dopa-Responsive, Due To Sepiapterin Reductase Deficiency

Sepiapterin Reductase Deficiency

Spr Deficiency

Dopa-Responsive Dystonia Due To Sepiapterin Reductase Deficiency

Srd

Drd Due To Srd

Dopa-Responsive Hypersomnia

Dyt-Spr

Dyt/Park-Spr

Sr-Deficient Drd

Autosomal Recessive Sepiapterin Reductase-Deficient Drd

Spr

DRDSPRD

Motor And Cognitive Disorder Due To Sepiapterin Reductase Deficiency

Psychomotor Disorders

Cervical Dystonia

Spasmodic Torticollis

Trigeminal Neuralgia

Tic Douloureux

Trifacial Neuralgia

Trifocal Neuralgia

Neuralgia Of The Fifth Cranial Nerve

Neuralgia Of 5th Cranial Nerve

Infraorbital Neuralgia

Parkinson Disease, Late-Onset

Parkinson Disease

Parkinson'S Disease

PD

PARK

Parkinson Disease, Susceptibility To

Late Onset Parkinson'S Disease

Late Onset Parkinson Disease

Paralysis Agitans

Primary Parkinsonism

Idiopathic Parkinson Disease

Parkinson'S

Parkinson Disease, Late-Onset, Susceptibility To

Parkinson Disease, Age Of Onset, Modifier

Lewy Body Parkinson Disease

Idiopathic Parkinson'S Disease

Pd - [Parkinson Disease]

Parkinson Disease Nos

Parkinson, Nos

Primary Parkinson Disease

Spasmodic Dystonia

Laryngeal Dystonia

Multifocal Dystonia
Leber Optic Atrophy And Dystonia

LDYT

Marsden Syndrome

Leber Hereditary Optic Neuropathy With Dystonia

Leber Hereditary Optic Neuropathy And Dystonia

Familial Dystonia With Visual Failure And Striatal Lucencies

Dystonia, Familial, With Visual Failure And Striatal Lucencies

Leber Optic Atrophy With Dystonia

Dystonia Familial, With Visual Failure And Striatal Lucencies

Lhon And Dystonia

Leber'S Hereditary Optic Neuropathy With Dystonia

Aromatic L-Amino Acid Decarboxylase Deficiency

Aadc Deficiency

Dopa Decarboxylase Deficiency

Ddc Deficiency

Aromatic Amino Acid Decarboxylase Deficiency

Deficiency Of Aromatic-L-Amino-Acid Decarboxylase

AADCD

Aromatic-L-Amino-Acid Decarboxylase Deficiency

Aromatic L-Amino-Acid Decarboxylase Deficiency

Focal Dystonia

Dystonia, Focal, Task-Specific

Dystonia 3, Torsion, X-Linked

X-Linked Dystonia-Parkinsonism

DYT3

Xdp

Lubag

Dystonia-Parkinsonism, X-Linked

Torsion Dystonia-Parkinsonism, Filipino Type

Dyt-Taf1

X-Linked Dystonia-Parkinsonism Syndrome

X-Linked Torsion Dystonia-Parkinsonism Syndrome

Dystonia Musculorum Deformans

X-Linked Dystonia-Parkinsonism/Lubag

Lubag Syndrome

Dystonia-3

Torsion Dystonia-Parkinsonism Filipino Type

X-Linked Torsion Dystonia 3

Dystonia, Torsion, X-Linked, Type 3

Dystonia 12

DYT12

Rdp

Generalized Dystonia

Dystonia-12

Rapid-Onset Dystonia-Parkinsonism

Familial Dystonia

Dystonia Musculorum Deformans

Dystonic Disorders

Idiopathic Familial Dystonia

Dystonia-Parkinsonism, Rapid-Onset

Fragments Of Torsion Dystonia

Dyt-Atp1a3

Rapid-Onset Dystonia Parkinsonism

Rodp

Dystonia, Type 12

Dystonia 3, Torsion, X-Linked

Idiopathic Non-Familial Dystonia

Symptomatic Torsion Dystonia

Dystonia Disorders

Dystonia 1, Torsion, Autosomal Dominant

Dystonia Musculorum Deformans 1

Dystonia Musculorum Deformans

DYT1

Early-Onset Torsion Dystonia

Eotd

Dystonia-1, Torsion

Torsion Dystonia 1

Autosomal Dominant Torsion Dystonia 1

Dystonia-1

Oppenheim'S Dystonia

Oppenheim-Ziehen Disease

Early Onset Torsion Dystonia

Dystonia 3, Torsion, X-Linked

Blepharospasm
Focal Hand Dystonia

Organic Writer'S Cramp

Dystonia, Focal, Task-Specific

Dystonia 11, Myoclonic

Myoclonic Dystonia

Myoclonus-Dystonia Syndrome

DYT11

Myoclonic Dystonia 11

Alcohol-Responsive Dystonia

Myoclonus, Hereditary Essential

Dystonia-11, Myoclonic

Myoclonus-Dystonia

Dystonia 11

Hereditary Essential Myoclonus

Dystonia, Alcohol-Responsive

Dyt-Sgce

Dystonia, Alcohol Responsive

Dystonia-11

Dystonia, Myoclonic

Dystonia, Myoclonic, Type 11

Pheochromocytoma

Pheochromocytoma, Susceptibility To

Phaeochromocytoma

Adrenal Gland Chromaffin Paraganglioma

Adrenal Gland Chromaffinoma

Adrenal Gland Paraganglioma

Adrenal Gland Pheochromocytoma

Chromaffin Paraganglioma Of The Adrenal Gland

Intraadrenal Paraganglioma

PCC

Chromaffin Cell Tumor

Medullary Chromaffinoma

Medullary Paraganglioma

Pheochromoblastoma

Pheochromocytomas

Chromaffin Cell Neoplasm

Pheochromocytoma, Malignant

Gliosarcoma

Glioblastoma With Sarcomatous Component

Sarcomatous Glioblastoma

Bipolar Disorder

Bipolar Depression

Manic Disorder

Depression, Bipolar

Bipolar Disorder Manic Phase

Depressive-Manic Psych.

Manic Bipolar Affective Disorder

Manic Bipolar I Disorder

Manic Depression

Manic Depressive Disorder

Mixed Bipolar Disorder

Bipolar Affective Disorder

Bipolar Affective Psychosis

Bipolar Spectrum Disorder

Manic Depressive Illness

Depression Bipolar

Bipolar Disorder, Mixed

Major Affective Disorder

Major Affective Disorder 1

Major Affective Disorder 2

Alternating Hemiplegia Of Childhood

Alternating Hemiplegia

Ahc

Alternating Hemiplegia Syndrome

Hemiplegia, Alternating, Of Childhood

Hemiplegia, Crossed

Leber Plus Disease

Leber Congenital Amaurosis

Lca

Leber'S Amaurosis

Leber'S Disease

Amaurosis Congenita Of Leber

Amaurosis Congenita Of Leber, Type 1

Lhon Plus Disease

Congenital Absence Of The Rods And Cones

Congenital Retinal Blindness

Crb

Congenital Amaurosis Of Retinal Origin

Leber'S Congenital Amaurosis

Leber Congenital Amaurosis 1

Leber'S Congenital Tapetoretinal Degeneration

Leber'S Congenital Tapetoretinal Dysplasia

Lca1

Leber Congenital Amaurosis Type 1

Retinal Blindness, Congenital

Amaurosis, Leber Congenital

Dysgenesis Neuroepithelialis Retinae

Hereditary Epithelial Dysplasia Of Retina

Hereditary Retinal Aplasia

Heredoretinopathia Congenitalis

Leber Abiotrophy

Leber Congenital Tapetoretinal Degeneration

Lebers Congenital Amaurosis

Optic Atrophy, Hereditary, Leber

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Canis familiaris GCH1 VGNC VGNC:41145
Rattus norvegicus GCH1 RGD RGD:61992
Macaca mulatta GCH1 VGNC VGNC:72900
Bos taurus GCH1 VGNC VGNC:29286
Mus musculus GCH1 MGD MGI:95675
Felis catus GCH1 VGNC VGNC:104393