Tryptophan metabolism (Homo sapiens)
From WikiPathways
Description
This pathway describes the metabolism of tryptophan, an essential amino acid.
Originally adapted from: KEGG, and expanded with information from Agus 2018, Dehhaghi 2019, and Gao 2020.
Proteins on this pathway have targeted assays available via the CPTAC Assay Portal.
Quality Tags
Ontology Terms
Bibliography
View all... |
- Qian Han, Tao Cai, Danilo A. Tagle, Jianyong Li; ''Structure, expression, and function of kynurenine aminotransferases in human and rodent brains''; Cell Mol Life Sci., 2010 PubMed Europe PMC Scholia
- Jessica M Yano, Kristie Yu, Gregory P Donaldson, Gauri G Shastri, Phoebe Ann, Liang Ma, Cathryn R Nagler, Rustem F Ismagilov, Sarkis K Mazmanian, Elaine Y Hsiao; ''Indigenous bacteria from the gut microbiota regulate host serotonin biosynthesis''; Cell, 2015 PubMed Europe PMC Scholia
- Allison Agus, Julien Planchais, Harry Sokol 2; ''Gut Microbiota Regulation of Tryptophan Metabolism in Health and Disease''; Cell Host Microbe, 2018 PubMed Europe PMC Scholia
- ''''; https://www.genome.jp/dbget-bin/www_bget?pathway+rno00380,
- Kan Gao, Chun-Long Mu, Aitak Farzi, Wei-Yun Zhu; ''Tryptophan Metabolism: A Link Between the Gut Microbiota and Brain''; Adv Nutr ., 2020 PubMed Europe PMC Scholia
- Mona Dehhaghi, Hamed Kazemi Shariat Panahi, Gilles J Guillemin; ''Microorganisms, Tryptophan Metabolism, and Kynurenine Pathway: A Complex Interconnected Loop Influencing Human Health Status''; Int J Tryptophan Res., 2019 PubMed Europe PMC Scholia
- Gary M Mawe, Jill M Hoffman; ''Serotonin signalling in the gut--functions, dysfunctions and therapeutic targets''; Nat Rev Gastroenterol Hepatol., 2013 PubMed Europe PMC Scholia
- Jing Gao, Kang Xu, Hongnan Liu, Gang Liu, Miaomiao Bai, Can Peng, Tiejun Li, Yulong Yin; ''''; , PubMed Europe PMC Scholia
- Camille Martin-Gallausiaux, Pierre Larraufie, Anne Jarry, Fabienne Béguet-Crespe, Ludovica Marinelli, Florence Ledue, Frank Reimann, Hervé M Blottière, Nicolas Lapaque; ''Butyrate Produced by Commensal Bacteria Down-Regulates Indolamine 2,3-Dioxygenase 1 ( IDO-1) Expression via a Dual Mechanism in Human Intestinal Epithelial Cells''; Front Immunol., 2018 PubMed Europe PMC Scholia
- G Clarke, S Grenham, P Scully, P Fitzgerald, R D Moloney, F Shanahan, T G Dinan, J F Cryan; ''The microbiome-gut-brain axis during early life regulates the hippocampal serotonergic system in a sex-dependent manner''; Mol Psychiatry, 2013 PubMed Europe PMC Scholia
- Denisse Bravo, Anilei Hoare, Cristopher Soto, Manuel A Valenzuela, Andrew Fg Quest; ''Helicobacter pylori in human health and disease: Mechanisms for local gastric and systemic effects''; World J Gastroenterol., 2018 PubMed Europe PMC Scholia
History
View all... |
External references
DataNodes
View all... |
Name | Type | Database reference | Comment |
---|---|---|---|
(S)-3-Hydroxy butyryl-CoA | Metabolite | C01144 (KEGG Compound) | (S)-3-Hydroxybutanoyl-CoA |
1.5.1.- | GeneProduct | 1.5.1.- (Enzyme Nomenclature) | Unclear which specific protein acts in this reaction. |
2-Amino-3-carboxymuconate | Metabolite | C04409 (KEGG Compound) | 2-Amino-3-carboxymuconate |
2-Aminomuconate | Metabolite | C02220 (KEGG Compound) | 2-Aminomuconate |
2-Aminomuconate | Metabolite | C03824 (KEGG Compound) | 2-Aminomuconate |
2-Oxoadipate | Metabolite | 19951093 (Chemspider) | 2-Oxoadipate |
3-Hydroxy- L-kynurenine | Metabolite | C03227 (KEGG Compound) | AKA 3-Hydroxy-L-kynurenine, 3H-KYN |
3-Hydroxyanthranilate | Metabolite | 7822291 (Chemspider) | AKA 3-Hydroxyanthranilate, 3-HAA |
3-Hydroxykynurenamine | Metabolite | HMDB0060281 (HMDB) | 3-Hydroxykynurenamine |
4,6-Dihydroxyquinoline | Metabolite | HMDB0004077 (HMDB) | |
4,8-Dihydroxyquinoline | Metabolite | CHEBI:28883 (ChEBI) | 4,8-Dihydroxyquinoline |
4-(2-Amino-3-hydroxyphenyl)- 2,4-dioxobutanoate | Metabolite | HMDB0004083 (HMDB) | |
4.1.1.- | GeneProduct | 4.1.1.- (Enzyme Nomenclature) | Unclear which specific protein acts in this reaction |
5-Hydroxy-L-tryptophan | Metabolite | HMDB0000472 (HMDB) | "The neurotransmitter 5-HT is produced in the brain through the Trp hydroxylase 2 enzyme (TpH2), [...], more than 90% of the body's 5-HT is produced in the gut and particularly in enterochromaffin cells (ECs), a specialized subtype of intestinal epithelial cell." |
5-Hydroxy-N-formylkynurenine | Metabolite | HMDB0004086 (HMDB) | |
5-Hydroxyindoleacetaldehyde | Metabolite | HMDB0004073 (HMDB) | AKA 5-HIAA |
5-Hydroxyindoleacetate | Metabolite | 10637170 (Chemspider) | 5-Hydroxyindoleacetate |
5-Hydroxykynurenine | Metabolite | 484-78-6 (CAS) | |
5-Methoxyindoleacetate | Metabolite | 14533147 (Chemspider) | 5-Methoxyindoleacetate |
5-hydroxykynurenamine | Metabolite | CHEBI:62214 (ChEBI) | 5-Hydroxykynurenamine |
6-Hydroxymelatonin | Metabolite | 2208-41-5 (CAS) | |
AADAT | GeneProduct | 56267 (Entrez Gene) | |
AANAT | GeneProduct | 15 (Entrez Gene) | |
ACAT1 | GeneProduct | 38 (Entrez Gene) | |
ACMSD | GeneProduct | 130013 (Entrez Gene) | |
AFMID | GeneProduct | 125061 (Entrez Gene) | |
ALDH2 | GeneProduct | 217 (Entrez Gene) | |
ALDH2 | Protein | P05091 (Uniprot-TrEMBL) | |
ALDH8A1 | GeneProduct | 64577 (Entrez Gene) | |
AOC1 | GeneProduct | 26 (Entrez Gene) | aka ABP1 |
AOX1 | GeneProduct | 316 (Entrez Gene) | |
ASMT | GeneProduct | 438 (Entrez Gene) | |
Acetoacetyl-CoA | Metabolite | C00332 (KEGG Compound) | |
Acetyl-CoA | Metabolite | 72-89-9 (CAS) | Acetyl-CoA |
Anthranilate | Metabolite | 4573598 (Chemspider) | Anthranilate |
Benzoate degradation via hydroxylation | Pathway | ||
CAT | GeneProduct | 847 (Entrez Gene) | |
CYP1A1 | GeneProduct | 1543 (Entrez Gene) | |
Cinnavalininate | Metabolite | C05640 (KEGG Compound) | Cinnavalininate |
Crotonoyl-CoA | Metabolite | C00877 (KEGG Compound) | |
DDC | GeneProduct | 1644 (Entrez Gene) | Known under two EC numbers: aromatic-L-amino-acid/L-tryptophan decarboxylase [EC:4.1.1.28; EC:4.1.1.105] |
DLD | GeneProduct | 1738 (Entrez Gene) | aka OADH |
ECHS1 | GeneProduct | 1892 (Entrez Gene) | |
Formyl-5-hydroxykynurenamine | Metabolite | HMDB0012948 (HMDB) | |
Formyl-N-acetyl-5- methoxykynurenamine | Metabolite | C05642 (KEGG Compound) | Formyl-N-acetyl-5-methoxykynurenamine |
Formylkynurenine | Metabolite | 1022-31-7 (CAS) | Formylkynurenine |
GCDH | GeneProduct | 2639 (Entrez Gene) | predicted |
Glutaryl-CoA | Metabolite | C00527 (KEGG Compound) | |
Glycolysis/Gluconeogenesis | Pathway | WP534 (WikiPathways) | |
HAAO | GeneProduct | 23498 (Entrez Gene) | |
HADH | Protein | Q16836 (Uniprot-TrEMBL) | |
IDO1 | Protein | P14902 (Uniprot-TrEMBL) | AKA indoleamine 2,3-dioxygenase, in both immune and epithelial cells [PMID: 22688187] |
IDO2 | GeneProduct | 169355 (Entrez Gene) | |
IL4I1 | Protein | Q96RQ9 (Uniprot-TrEMBL) | |
INDO2 | GeneProduct | 3620 (Entrez Gene) | |
INMT | GeneProduct | 11185 (Entrez Gene) | |
Indole-3-acetaldehyde | Metabolite | 778 (Chemspider) | AKA IAAId |
Indole-3-acetamide | Metabolite | CHEBI:16031 (ChEBI) | AKA IAM |
Indole-3-acetate | Metabolite | 779 (Chemspider) | AKA IAA, Indole Acetic Acid |
Indole-3-aldehyde | Metabolite | CHEBI:28238 (ChEBI) | AKA IAId |
Indolepyruvate | Metabolite | C00331 (KEGG Compound) | |
KMO | GeneProduct | 8564 (Entrez Gene) | |
KYNU | GeneProduct | 8942 (Entrez Gene) | |
L-Kynurenine | Metabolite | 343-65-7 (CAS) | L-Kynurenine |
L-Tryptophan | Metabolite | 73-22-3 (CAS) | |
MAOA | GeneProduct | 4128 (Entrez Gene) | AKA Monoamine Ozydase (MAO) |
Melatonin | Metabolite | HMDB0001389 (HMDB) | |
N-Acetylserotonin | Metabolite | 1210-83-9 (CAS) | N-Acetylserotonin |
N-Methylserotonin | Metabolite | HMDB0004369 (HMDB) | |
N-Methyltryptamine | Metabolite | CHEBI:28136 (ChEBI) | |
N-formylanthranilate | Metabolite | Q27103061 (Wikidata) | Formylanthranilate |
Nicotinate and nicotinamide metabolism | Pathway | WP4210 (WikiPathways) | |
Phenylalanine, Tyrosine and Tryptophan metabolism | Pathway | WP3925 (WikiPathways) | |
Quinolinate | Metabolite | 2777129 (Chemspider) | |
Serotonin | Metabolite | 5013 (Chemspider) | AKA 3-(2-Aminoethyl)-1H-indol-5-ol |
TDO2 | GeneProduct | 6999 (Entrez Gene) | |
TMO | Protein | P48775 (Uniprot-TrEMBL) | AKA Tryptophan 2,3-dioxygenase; abbreviation TMO is not know in UniProt (TDO2 is the gene name). |
TPH2 | GeneProduct | 121278 (Entrez Gene) | produced in the brain |
TpH1 | Protein | P17752 (Uniprot-TrEMBL) | AKA Trp hydroxylase 1, produced in intestinal epithelial cells. |
TrD | Protein | AKA Tryptophan Decarboxylase; protein from different species, is also expressed in plants (e.g. tobacco, PMID:10712558] | |
Tryptamine | Metabolite | 61-54-1 (CAS) | |
Tryptophol | Metabolite | CHEBI:17890 (ChEBI) | |
Xanthurenic acid | Metabolite | HMDB0000881 (HMDB) | |
picolinate | Metabolite | C10164 (KEGG Compound) |
Annotated Interactions
No annotated interactions