Leukotriene metabolic pathway (Homo sapiens)
From WikiPathways
Description
Overview of the leukotrienes biosynthesis and metabolism. Leukotrienes are a group of biologically active lipid mediators who are derived pre-dominantly from arachidonic acid via the 5-lipoxygensea pathways. They pathways splits up into two parts, one include cysteinyl leukotrienes (LTC4, LTD4 and LTE4), and second contains LTB4.
The three disorders in the biosynthesis and metabolism of leukotrienes are caused by hereditary primary defects in enzyme and are indicated with a light red color. The clinical presentation of LTC4 synthase deficiency includes muscular hypotonia, psychomotor retardation, microcephaly and failure to thrive. The other two defects gamma-glutamyl transpeptidase deficiency and membrane-bound dipeptidase deficiency, have been less well studied.
This pathway was inspired by Chapter 41 of the book of Blau (ISBN 3642403360 (978-3642403361)).
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Ontology Terms
Bibliography
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- Rouzer CA, Matsumoto T, Samuelsson B; ''Single protein from human leukocytes possesses 5-lipoxygenase and leukotriene A4 synthase activities.''; Proc Natl Acad Sci U S A, 1986 PubMed Europe PMC Scholia
- Adachi H, Kubota I, Okamura N, Iwata H, Tsujimoto M, Nakazato H, Nishihara T, Noguchi T; ''Purification and characterization of human microsomal dipeptidase.''; J Biochem, 1989 PubMed Europe PMC Scholia
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- Raulf M, König W, Köller M, Stüning M; ''Release and functional characterization of the leukotriene D4-metabolizing enzyme (dipeptidase) from human polymorphonuclear leucocytes.''; Scand J Immunol, 1987 PubMed Europe PMC Scholia
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History
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External references
DataNodes
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Name | Type | Database reference | Comment |
---|---|---|---|
(C2)-COOH-LTB | Metabolite | ||
(C2)-COOH-LTE | Metabolite | ||
12-Oxo-LTB4 | Metabolite | CHEBI:27814 (ChEBI) | Found in reactome reaction: arachidonic acid metabolism |
16-carboxy-LTB4 | Metabolite | ||
16-carboxy-LTE4 | Metabolite | ||
18-COOH-LTB4 | Metabolite | CHEBI:63980 (ChEBI) |
|
18-carboxy-LTE4 | Metabolite | CHEBI:74017 (ChEBI) | aka 18-COOH-LTE4,PMID: 2174886. Structural depiction in PMID:2174886 is exact match with 18-carboxy-19,20-dinor-leukotriene E4 (CHEBI:74017) |
2,4-dienoyl-CoA reductase (mitochondrial) | Protein | Q16698 (Uniprot-TrEMBL) | PMID: 2174886; localization info not provided |
2,4-dienoyl-CoA reductase (peroxisomal) | Protein | Q9NUI1 (Uniprot-TrEMBL) | PMID: 2174886; localization info not provided |
20-COOH-LTB4 | Metabolite | CHEBI:27562 (ChEBI) |
|
20-carboxy-LTE4 | Metabolite | CHEBI:134517 (ChEBI) | PMID: 2174886 |
20-hydroxy-LTB4 | Metabolite | CHEBI:15646 (ChEBI) | |
20-hydroxy-LTE4 | Metabolite | CHEBI:28700 (ChEBI) | |
20-oxo-LTB4 | Metabolite | CHEBI:63979 (ChEBI) |
|
5-HPETE | Metabolite | CHEBI:15632 (ChEBI) | 5-HPETE: 5-Hydroperoxyeicosatetraenoic acid |
5-LOAP | GeneProduct | ENSG00000132965 (Ensembl) | 5-LOAP: 5-lipoxygenase-activating protein found as ALOX5AP |
5-LO | GeneProduct | ENSG00000012779 (Ensembl) |
|
ABCC1 | GeneProduct | ENSG00000103222 (Ensembl) | Found in reactome reaction: arachidonic acid metabolism |
Arachidonate epoxygenase / epoxide hydrolase | Pathway | WP678 (WikiPathways) | |
Arachidonic acid | Metabolite | CHEBI:15843 (ChEBI) | |
CYP4F3 | GeneProduct | ENSG00000186529 (Ensembl) | CYP4F3 or LTB4H |
DPEP1 | GeneProduct | ENSG00000015413 (Ensembl) | DPEP1: membrane-bound dipeptidase |
DPEP2 | GeneProduct | ENSG00000167261 (Ensembl) |
|
Eicosanoid metabolism via cytochrome P450 monooxygenases pathway | Pathway | WP4720 (WikiPathways) | |
GGT1 | GeneProduct | ENSG00000100031 (Ensembl) | GGT1: Gamma-glutamyl transpeptidase |
GGT5 | GeneProduct | ENSG00000099998 (Ensembl) |
|
Glutathione | Metabolite | CHEBI:16856 (ChEBI) | |
LTA4 | Metabolite | CHEBI:15651 (ChEBI) | |
LTA4H | GeneProduct | ENSG00000111144 (Ensembl) | |
LTB4 | Metabolite | CHEBI:15647 (ChEBI) | |
LTC4 | Metabolite | CHEBI:16978 (ChEBI) | |
LTC4S | GeneProduct | ENSG00000213316 (Ensembl) | LTC4S: LTC4 synthase |
LTD4 | Metabolite | CHEBI:28666 (ChEBI) | |
LTE4 | Metabolite | CHEBI:15650 (ChEBI) | PMID: 2174886 |
N-acetyl-LTE4 | Metabolite | CHEBI:7210 (ChEBI) | PMID: 2174886 |
PTGR1 | GeneProduct | ENSG00000106853 (Ensembl) | Found in reactome reaction: arachidonic acid metabolism |
leukotriene-E4 20-monooxygenase | GeneProduct | 1.14.13.34 (Enzyme Nomenclature) |
|
Annotated Interactions
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Source | Target | Type | Database reference | Comment |
---|---|---|---|---|
20-COOH-LTB4 | 18-COOH-LTB4 | mim-conversion | Id: R-HSA-2161790.2 (Reactome) | found in reactome pathway: arachidonic acid metabolism |
20-hydroxy-LTB4 | 20-oxo-LTB4 | mim-conversion | RHEA:48669 (Rhea) | |
20-oxo-LTB4 | 20-COOH-LTB4 | mim-conversion | RHEA:48673 (Rhea) | looks firs like a conversion from hydroxy to oxo (RHEA:48668) and then from oxo to carboxy (RHEA:48672) |
5-HPETE | LTA4 | mim-conversion | RHEA:17962 (Rhea) | |
Arachidonic acid | 5-HPETE | mim-conversion | RHEA:17486 (Rhea) | |
LTA4 | LTB4 | mim-conversion | RHEA:22325 (Rhea) | |
LTA4 | LTC4 | mim-conversion | RHEA:17619 (Rhea) | |
LTB4 | 12-Oxo-LTB4 | mim-conversion | RHEA:50609 (Rhea) | Found in reactome reaction: arachidonic acid metabolism |
LTB4 | 20-hydroxy-LTB4 | mim-conversion | RHEA:22177 (Rhea) | |
LTC4 | LTC4 | Arrow | Id: R-HSA-266070.1 (Reactome) | Transport activity of ABCC1 |
LTC4 | LTD4 | mim-conversion | RHEA:31564 (Rhea) | |
LTD4 | LTE4 | mim-conversion | RHEA:48616 (Rhea) |
|
LTD4 | LTE4 | mim-conversion | RHEA:48617 (Rhea) | |
LTE4 | 20-hydroxy-LTE4 | mim-conversion | RHEA:24121 (Rhea) | No human literature, only found in rats |