Disorders in ketone body synthesis (Homo sapiens)
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Description
Ketone bodies, acetoacetate and 3-hydroxybutyric acid, are produced in times of hunger/starvation by the liver. Ketogenesis can be impeded by inborn errors of metabolism such as Methylacetoacetyl-CoA thiolase deficiency, 3-hydroxy-3-methylglutaryl-CoA synthase deficiency and 3-hydroxy-3-methylglutaryl-CoA lyase deficiency.
In this pathway ketogenesis is visualised and linked to the different diseases. Ketogenesis can derive from leucine metabolism and fatty acid beta-oxidation and happens in the mitochondria. The enzymes ACAT1, HMGCS2, HMGCL and BDH1 play an important role during this proces.
This pathway is based on chapter 23 of the book of Blau et al. (ISBN 3642403360 (978-3642403361)), figures 23.1 and 23.2.Quality Tags
Ontology Terms
Bibliography
- Morris, AMM; ''Inborn metabolic diseases''; ISBN: 978-3-642-15720-2, 2012
- Blau, Nenad, Duran, Marinus, Gibson, K. Michael, Dionisi-Vici, Carlos; ''Physician's Guide to the Diagnosis, Treatment, and Follow-Up of Inherited Metabolic Diseases''; 978-3-642-40337-8, 2014 DOI Scholia
History
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External references
DataNodes
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Name | Type | Database reference | Comment |
---|---|---|---|
3-hydroxy-3-methylglutaryl-coenzyme A | Metabolite | CHEBI:11814 (ChEBI) | |
3-hydroxybutyric acid | Metabolite | 20067 (ChEBI) | |
ACAT1 | Protein | A0A140VJX1 (Uniprot-TrEMBL) | In the book by Blau et al. referred to as MAT |
Acetoacetyl-CoA | Metabolite | CHEBI:15345 (ChEBI) | |
Acetyl-CoA | Metabolite | CHEBI:57288 (ChEBI) | |
BDH1 | Protein | Q02338 (Uniprot-TrEMBL) | In the book by Blau et al. they use the abbriviation 3HBD |
Carbon Dioxide | Metabolite | CHEBI:16526 (ChEBI) | |
CoASH | Metabolite | CHEBI:15346 (ChEBI) | |
Coenzym A | Metabolite | CHEBI:15346 (ChEBI) | |
H+ | Metabolite | CHEBI:15378 (ChEBI) | |
HMGCL | GeneProduct | ENSG00000117305 (Ensembl) | |
HMGCS2 | Protein | P54868 (Uniprot-TrEMBL) | |
Leucine, isoleucine and valine metabolism | Pathway | WP4686 (WikiPathways) | |
Leucine | Metabolite | CHEBI:15603 (ChEBI) | |
Mitochondrial long chain fatty acid beta-oxidation | Pathway | WP368 (WikiPathways) | |
NAD+ | Metabolite | CHEBI:15846 (ChEBI) | |
NADH | Metabolite | CHEBI:16908 (ChEBI) | |
Pyruvate metabolism | Pathway | ||
Sterol biosynthesis | Pathway | WP4718 (WikiPathways) | |
Tricarboxylic acid cycle | Pathway | WP78 (WikiPathways) | |
acetoacetate | Metabolite | CHEBI:13705 (ChEBI) | |
acetone | Metabolite | CHEBI:15347 (ChEBI) | |
fatty acids | Metabolite | CHEBI:35366 (ChEBI) |
Annotated Interactions
Source | Target | Type | Database reference | Comment |
---|---|---|---|---|
3-hydroxy-3-methylglutaryl-coenzyme A | mim-conversion | 24405 (Rhea) | ||
Acetoacetyl-CoA | 3-hydroxy-3-methylglutaryl-coenzyme A | mim-conversion | 10189 (Rhea) | |
Acetyl-CoA | Acetoacetyl-CoA | mim-conversion | 21039 (Rhea) | |
acetoacetate | 3-hydroxybutyric acid | mim-conversion | 20524 (Rhea) | |
acetoacetate | acetone | mim-conversion | 19730 (Rhea) |