Biotin metabolism, including IMDs (Homo sapiens)
From WikiPathways
Description
An important cofactor for carboxylation reaction is the vitamin Biotin. Four carboxylase groups (ACC, MCC, PCC and PC) are activated by binding to biotin and forming holocarboxylases, which in turn are responsible for several metabolic conversion in the Fatty Acid Synthesis, Leucine catabolism, propanoate metabolism and gluconeogenesis. Except for the ACC conversion from acetyl-CoA to malonyl-CoA starting the fatty acid synthesis, all other three interactions are connected to disorders. Furthermore, one can distinguish two "multiple carboxylase defects" (MCDs), which are connected to the conversion of biocytin into biotin (BTD), or unbound biotin to one of the apocarboxylases (HCSD).
This pathway was inspired by Chapter 14 (edition 4) of the book of Blau (ISBN 3642403360 (978-3642403361)).
Quality Tags
Ontology Terms
Bibliography
- 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, 2014
- Hymes J, Wolf B; ''Biotinidase and its roles in biotin metabolism.''; Clin Chim Acta, 1996 PubMed Europe PMC Scholia
- Said HM; ''Biotin: biochemical, physiological and clinical aspects.''; Subcell Biochem, 2012 PubMed Europe PMC Scholia
History
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External references
DataNodes
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Name | Type | Database reference | Comment |
---|---|---|---|
3-methylcrotonyl-COA | Metabolite | CHEBI:57344 (ChEBI) | aka 3-methylbut-2-enoyl-CoA |
3-methylglutaconyl-CoA | Metabolite | CHEBI:57346 (ChEBI) | aka trans-3-methylglutaconyl-CoA |
ACC1 (cytosol) | Protein | Q13085 (Uniprot-TrEMBL) | aka acetyl-CoA carboxylase |
ACC2 (mitochondrial) | Protein | O00763 (Uniprot-TrEMBL) | aka acetyl-CoA carboxylase |
Acetyl-CoA | Metabolite | CHEBI:57288 (ChEBI) | |
Apo-ACC | Metabolite | CHEBI:29969 (ChEBI) | aka apo-[methylmalonyl-CoA:pyruvate carboxytransferase] |
Apo-MCC | Metabolite | CHEBI:29969 (ChEBI) | aka apo-[3-methylcrotonoyl-CoA:carbon-dioxide ligase (ADP-forming)] |
Apo-PCC | Metabolite | CHEBI:29969 (ChEBI) | aka apo-[propionyl-CoA:carbon-dioxide ligase (ADP-forming)] |
Apo-PC | Metabolite | CHEBI:29969 (ChEBI) | aka pyruvate carboxylase |
Biocytin | Metabolite | Q864247 (Wikidata) | biotin covalantly bound to lysine |
Biotin (free pool) | Metabolite | CHEBI:15956 (ChEBI) | |
Biotin | Metabolite | CHEBI:15956 (ChEBI) | |
Biotinidase (BTD) | Protein | P43251 (Uniprot-TrEMBL) | |
Dietary and other protein-bound biotin | Metabolite | CHEBI:16615 (ChEBI) | |
Fatty Acid Synthesis | Pathway | WP3965 (WikiPathways) | |
Gluconeogenesis, Anaplerosis | Pathway | WP534 (WikiPathways) | |
HLCS | Protein | P50747 (Uniprot-TrEMBL) | aka Holocarboxylase Synthetase |
Leucine Catabolism | Pathway | WP4686 (WikiPathways) | |
Lysine | Metabolite | CHEBI:25094 (ChEBI) | |
MCCC1 | Protein | Q96RQ3 (Uniprot-TrEMBL) | |
MCCC2 | Protein | Q9HCC0 (Uniprot-TrEMBL) | |
Malonyl-CoA | Metabolite | CHEBI:57384 (ChEBI) | |
PCCA | Protein | P05165 (Uniprot-TrEMBL) | |
PCCB | Protein | P05166 (Uniprot-TrEMBL) | |
PC | Protein | P11498 (Uniprot-TrEMBL) | aka pyruvate carboxylase |
Propanoate metabolism | Pathway | WP4034 (WikiPathways) | aka Propionate metabolism |
Proteolysis | Protein | ||
free biotin | Metabolite | CHEBI:15956 (ChEBI) | |
holo-ACC | Metabolite | CHEBI:83144 (ChEBI) | aka holo-[methylmalonyl-CoA:pyruvate carboxytransferase] |
holo-MCC | Metabolite | CHEBI:83144 (ChEBI) | aka holo-[3-methylcrotonoyl-CoA:carbon-dioxide ligase (ADP-forming)] |
holo-PCC | Metabolite | CHEBI:83144 (ChEBI) | aka holo-[propionyl-CoA:carbon-dioxide ligase (ADP-forming)] |
holo-PC | Metabolite | CHEBI:83144 (ChEBI) | aka pyruvate carboxylase |
leucine | Metabolite | CHEBI:25017 (ChEBI) | |
methylmanoyl-CoA | Metabolite | CHEBI:57327 (ChEBI) | |
oxaloacetate | Metabolite | CHEBI:16452 (ChEBI) | |
propanoyl-CoA | Metabolite | CHEBI:57392 (ChEBI) | aka propionyl-CoA |
pyruvate | Metabolite | CHEBI:15361 (ChEBI) |
Annotated Interactions
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Source | Target | Type | Database reference | Comment |
---|---|---|---|---|
3-methylcrotonyl-COA | 3-methylglutaconyl-CoA | mim-conversion | 13590 (Rhea) | |
Acetyl-CoA | Malonyl-CoA | mim-conversion | 11309 (Rhea) | |
Apo-ACC | mim-conversion | 23669 (Rhea) | ||
Apo-MCC | mim-conversion | 24377 (Rhea) | ||
Apo-PCC | mim-conversion | 11205 (Rhea) | ||
Apo-PC | mim-conversion | 11757 (Rhea) | ||
Biocytin | Biotin (free pool) | mim-conversion | 13082 (Rhea) | |
Biotin (free pool) | mim-conversion | 11205 (Rhea) | ||
Biotin (free pool) | mim-conversion | 11757 (Rhea) | ||
Biotin (free pool) | mim-conversion | 23669 (Rhea) | ||
Biotin (free pool) | mim-conversion | 24377 (Rhea) | ||
Lysine | mim-conversion | 13082 (Rhea) | ||
propanoyl-CoA | methylmanoyl-CoA | mim-conversion | 23721 (Rhea) | |
pyruvate | oxaloacetate | mim-conversion | 20845 (Rhea) |