GABA metabolism (aka GHB) (Homo sapiens)
From WikiPathways
Description
Gamma-Hydroxybutyric acid (GHB) is a naturally occurring neurotransmitter and a psychoactive drug. This compound is a precursor to GABA, glutamate, and glycine in certain brain areas, acts on the GHB receptor and is a weak agonist at the GABAB receptor.
GHB has been used in a medical setting as a general anesthetic and as a treatment for cataplexy, narcolepsy, and alcoholism. It is also used illegally as an intoxicant, to try to increase athletic performance, and as a date rape drug. GHB is also produced as a result of fermentation, and is found in small quantities in some beers and wines, beef and small citrus fruits. Succinic semialdehyde dehydrogenase deficiency is a disease that causes GHB to accumulate in the blood.
Part of this pathway was inspired by Edition 5, Chapter 24 (Fig.24.2) of the book of Blau (ISBN 9783030677268) (Ed.4 Chapter 5, Fig. 5.3).
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Ontology Terms
Bibliography
- Hyun-U Cho, Sunpil Kim, Jeongeun Sim, Seulkee Yang, Heeyoung An, Min-Ho Nam, Dong-Pyo Jang, C Justin Lee; ''Redefining differential roles of MAO-A in dopamine degradation and MAO-B in tonic GABA synthesis''; Exp Mol Med., 2021 PubMed Europe PMC Scholia
- Struys EA, Verhoeven NM, Ten Brink HJ, Wickenhagen WV, Gibson KM, Jakobs C; ''Kinetic characterization of human hydroxyacid-oxoacid transhydrogenase: relevance to D-2-hydroxyglutaric and gamma-hydroxybutyric acidurias.''; J Inherit Metab Dis, 2005 PubMed Europe PMC Scholia
- G K Brown, C H Cromby, N J Manning, R J Pollitt; ''Urinary organic acids in succinic semialdehyde dehydrogenase deficiency: evidence of alpha-oxidation of 4-hydroxybutyric acid, interaction of succinic semialdehyde with pyruvate dehydrogenase and possible secondary inhibition of mitochondrial beta-oxidation''; J Inherit Metab Dis ., 1987 PubMed Europe PMC Scholia
- Nenad Blau, Carlo Dionisi Vici, K Michael Gibson, Marinus Duran; ''Physician's Guide to the Diagnosis, Treatment, and Follow-Up of Inherited Metabolic Diseases''; Springer (ISBN-13: 9783642403361), 2014
- Struys EA, Verhoeven NM, Jansen EE, Ten Brink HJ, Gupta M, Burlingame TG, Quang LS, Maher T, Rinaldo P, Snead OC, Goodwin AK, Weerts EM, Brown PR, Murphy TC, Picklo MJ, Jakobs C, Gibson KM; ''Metabolism of gamma-hydroxybutyrate to d-2-hydroxyglutarate in mammals: further evidence for d-2-hydroxyglutarate transhydrogenase.''; Metabolism, 2006 PubMed Europe PMC Scholia
History
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External references
DataNodes
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Name | Type | Database reference | Comment |
---|---|---|---|
1,4-butanediol | Metabolite | CHEBI:41189 (ChEBI) | |
2-ketoglutarate | Metabolite | CHEBI:16810 (ChEBI) | |
2-oxo-4-hydroxybutanoic | Metabolite | CHEBI:173437 (ChEBI) | aka 2-oxo-4-hydroxybutyric acid aka 4-hydroxy-2-oxobutanoic acid |
3,4-dihydroxybutyric acid | Metabolite | CHEBI:86371 (ChEBI) | |
3-hydroxypropionic | Metabolite | CHEBI:33404 (ChEBI) | aka 3-hydroxypropionic acid |
3-oxo-4-hydroxybutanoic | Metabolite | 19793911 (PubChem-compound) | aka 3-oxo-4-hydroxybutyric acid aka 4-hydroxy-3-oxobutanoic acid |
3-oxo-4-hydroxybutyric acid | Metabolite | 19793911 (PubChem-compound) | aka 4-hydroxy-3-oxobutanoic acid |
4,5-dihydroxyhexanoic acid lactone | Metabolite | HMDB0002173 (HMDB) | AKA Solerol, ring-structure, appears to ba a biomarker for SSADH deficiency [PMID:3126356] |
4,5-dihydroxyhexanoic acid | Metabolite | HMDB0240745 (HMDB) | AKA DHHA, open-structure, appears to ba a biomarker for SSADH deficiency [PMID:3126356] |
4-butyrolactone | Metabolite | CHEBI:42639 (ChEBI) | |
4-hydroxybutyraldehyde | Metabolite | 93093 (PubChem-compound) | aka 4-hydroxybutanal |
4-hydroxybutyric acid | Metabolite | CHEBI:30830 (ChEBI) | |
ADH | Protein | 1.1.1.1 (Wikidata) | alcohol dehydrogenase |
ADH | Protein | Q410754 (Enzyme Nomenclature) | alcohol dehydrogenase |
ALDH | Protein | 1.2.1.3 (Enzyme Nomenclature) | aldehyde dehydrogenase |
D-2-hydroxyglutarate transhydrogenase | Protein | Q8IWW8 (Uniprot-TrEMBL) | aka hydroxyacid-oxoacid transhydrogenase (HOT) |
D-2-hydroxyglutarate | Metabolite | CHEBI:15801 (ChEBI) | D-2-hydroxyglutaric acid |
D-2-hydroxyglutaric acid | Metabolite | CHEBI:15801 (ChEBI) | aka D-2-hydroxyglutarate |
GABAT | Protein | P80404 (Uniprot-TrEMBL) | GABA transaminase |
GAD1 | Protein | Q99259 (Uniprot-TrEMBL) | AKA GAD67 |
GAD2 | Protein | Q05329 (Uniprot-TrEMBL) | AKA GAD65 |
GAD | Protein | 4.1.1.15 (Enzyme Nomenclature) | AKA Glutamic acid decarboxylase, exists in two isoforms with molecular weights of 67 and 65 kDa (GAD67 and GAD65), encoded by two different genes (GAD1 and GAD2) |
GHB
dehydro- genase | Protein | 1.1.1.61 (Enzyme Nomenclature) | aka NAD-dependent 4-hydroxybutyrate dehydrogenase |
GLS (kidney) | Protein | O94925 (Uniprot-TrEMBL) | |
GLS2 (liver) | Protein | Q9UI32 (Uniprot-TrEMBL) | |
Glutaminase | Protein | 3.5.1.2 (Enzyme Nomenclature) | Glutaminase has tissue-specific isoenzymes and 4 isoforms: the GLS gene encodes 2 types (active in kidney, and the GLS2 gene encodes 2 forms (active in liver) |
Homocarnosinase/ carnosinase | Protein | 3.4.13.3 (Enzyme Nomenclature) | |
MAOB | GeneProduct | 4129 (Entrez Gene) | |
N-Acetyl gamma- aminobutyraldehyde | Metabolite | 440850 (PubChem-compound) | AKA 4-Acetamidobutanal |
N-Acetyl gamma- aminobutyrate | Metabolite | 18189 (PubChem-compound) | AKA 4-Acetamidobutyric acid |
N-Acetylputrescine | Metabolite | CHEBI:17768 (ChEBI) | |
PLP | Metabolite | CHEBI:18405 (ChEBI) | AKA Pyridoxal phosphate, pyridoxal 5'-phosphate, P5P |
Putrescine | Metabolite | CHEBI:17148 (ChEBI) | |
SSA reductase | Protein | O43488 (Uniprot-TrEMBL) | |
SSADH | Protein | P51649 (Uniprot-TrEMBL) | Succinate-semialdehyde dehydrogenase |
Serum paraoxonase/lactonase 3 (a) | Protein | 3.1.8.1 (Enzyme Nomenclature) | |
Serum paraoxonase/lactonase 3 (b) | Protein | 3.1.1.81 (Enzyme Nomenclature) | |
Serum paraoxonase/lactonase 3 (c) | Protein | 3.1.1.2 (Enzyme Nomenclature) | |
Serum paraoxonase/lactonase 3 | Protein | Q15166 (Uniprot-TrEMBL) | |
TCA cycle | Pathway | WP78 (WikiPathways) | aka Krebs Cycle |
alpha-ketoglutarate | Metabolite | CHEBI:16810 (ChEBI) | aka 2-ketoglutarate aka 2-oxoglutarate |
beta-alanine | Metabolite | CHEBI:16958 (ChEBI) | |
fatty acid beta-oxidation spiral | Pathway | WP143 (WikiPathways) | |
gamma-aminobutanoic acid (GABA) | Metabolite | CHEBI:59888 (ChEBI) | aka gamma-aminobutyric acid |
gamma-hydroxybutyric acid (GHB) | Metabolite | CHEBI:16724 (ChEBI) | aka 4-hydroxybutanoic acid, Gamma-Hydroxybutyrate |
glutamic acid | Metabolite | CHEBI:16015 (ChEBI) | AKA glutamate |
glutamine | Metabolite | CHEBI:28300 (ChEBI) | |
glycolic acid | Metabolite | CHEBI:17497 (ChEBI) | |
homocarnosine | Metabolite | CHEBI:85981 (ChEBI) | |
lactamase | Protein | P16444 (Uniprot-TrEMBL) | |
malonic semialdehyde | Metabolite | CHEBI:17960 (ChEBI) | |
succinic acid | Metabolite | CHEBI:30031 (ChEBI) | aka succinate |
succinic semialdehyde | Metabolite | CHEBI:57706 (ChEBI) | |
uracil | Metabolite | CHEBI:17568 (ChEBI) |
Annotated Interactions
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Source | Target | Type | Database reference | Comment |
---|---|---|---|---|
4-butyrolactone | gamma-hydroxybutyric acid (GHB) | mim-conversion | 20402 (Rhea) | parent compounds, not a specific reaction |
D-2-hydroxyglutaric acid | mim-conversion | 24735 (Rhea) | ||
alpha-ketoglutarate | mim-conversion | 24735 (Rhea) | ||
gamma-aminobutanoic acid (GABA) | succinic semialdehyde | mim-conversion | 23353 (Rhea) | |
gamma-hydroxybutyric acid (GHB) | succinic semialdehyde | mim-conversion | 23949 (Rhea) | |
gamma-hydroxybutyric acid (GHB) | succinic semialdehyde | mim-conversion | 24735 (Rhea) | |
succinic semialdehyde | mim-conversion | 26383 (Rhea) |