Cysteine and methionine catabolism (Homo sapiens)
From WikiPathways
Description
This pathway visualizes the conversion of methionine to cysteine, after which it is further metabolized in either an oxidative or non-oxidative manner.
Several of these metabolites are altered in people suffering from MoCD and SO; changes in metabolite concentrations (comparing MoCD cases to controls) are highlighted in blue (see [WP4507](https://www.wikipathways.org/index.php/Pathway:WP4507) for the pathway on MoCD).
This pathway was inspired by Chapter 12 of the book of Blau (ISBN 3642403360 (978-3642403361)).Quality Tags
Ontology Terms
Bibliography
- Nenad Blau, Marinus Duran, K Michael Gibson, Carlo Dionisi-Vici; '''Physician's Guide to the Diagnosis, Treatment, and Follow-Up of Inherited Metabolic Diseases''; Springer-Verlag Berlin Heidelberg, 2014
- Miyamoto R, Otsuguro K, Yamaguchi S, Ito S; ''Contribution of cysteine aminotransferase and mercaptopyruvate sulfurtransferase to hydrogen sulfide production in peripheral neurons.''; J Neurochem, 2014 PubMed Europe PMC Scholia
- Smith AE, Matthews RG; ''Protonation state of methyltetrahydrofolate in a binary complex with cobalamin-dependent methionine synthase.''; Biochemistry, 2000 PubMed Europe PMC Scholia
- Bandarian V, Pattridge KA, Lennon BW, Huddler DP, Matthews RG, Ludwig ML; ''Domain alternation switches B(12)-dependent methionine synthase to the activation conformation.''; Nat Struct Biol, 2002 PubMed Europe PMC Scholia
- Castro C, Gratson AA, Evans JC, Jiracek J, Collinsová M, Ludwig ML, Garrow TA; ''Dissecting the catalytic mechanism of betaine-homocysteine S-methyltransferase by use of intrinsic tryptophan fluorescence and site-directed mutagenesis.''; Biochemistry, 2004 PubMed Europe PMC Scholia
History
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External references
DataNodes
| View all... |
| Name | Type | Database reference | Comment |
|---|---|---|---|
| -CH3 | Metabolite | CHEBI:32875 (ChEBI) ![]() | |
| 3-Mercaptopyruvic acid | Metabolite | CHEBI:57678 (ChEBI) ![]() | |
| 5-Methyl tetrahydrofolate | Metabolite | CHEBI:18608 (ChEBI) ![]() | |
| AAT | Protein | A0A140VK69 (Uniprot-TrEMBL) ![]() | AKA Aspartate aminotransferase |
| AAT | Protein | P17174 (Uniprot-TrEMBL) ![]() | AKA Aspartate aminotransferase |
| ATP | Metabolite | CHEBI:30616 (ChEBI) ![]() | |
| Adenosine | Metabolite | CHEBI:16335 (ChEBI) ![]() | |
| Alpha-KB | Metabolite | CHEBI:16763 (ChEBI) ![]() | |
| B-Sulfinyl pyruvate | Metabolite | HMDB0002332 (HMDB) ![]() | |
| BHMT | Protein | Q93088 (Uniprot-TrEMBL) ![]() | AKA Betaine--homocysteine S-methyltransferase 1 |
| Betaine | Metabolite | CHEBI:17750 (ChEBI) ![]() | |
| CDO | Protein | Q16878 (Uniprot-TrEMBL) ![]() | Cysteine dioxygenase type 1 |
| CO₂ | Metabolite | CHEBI:16526 (ChEBI) ![]() | |
| CSD | Protein | Q9Y600 (Uniprot-TrEMBL) ![]() | AKA Cysteine sulfinic acid decarboxylase |
| CSE | Protein | P32929 (Uniprot-TrEMBL) ![]() | Cystathionine gamma-lyase |
| CSE | Protein | P35520 (Uniprot-TrEMBL) ![]() | aka Cystathionine beta-synthase |
| Cystathionine | Metabolite | CHEBI:58161 (ChEBI) ![]() | |
| Cysteine sulfinic acid | Metabolite | CHEBI:61085 (ChEBI) ![]() | |
| Cysteine | Metabolite | CHEBI:35235 (ChEBI) ![]() | |
| Cystine | Metabolite | CHEBI:17376 (ChEBI) ![]() | |
| Dimethylglycine | Metabolite | CHEBI:58251 (ChEBI) ![]() | |
| GCS | Protein | Q14TF0 (Uniprot-TrEMBL) ![]() | AKA Glutamate-cysteine ligase |
| GS | Protein | P48637 (Uniprot-TrEMBL) ![]() | AKA Glutathione synthetase |
| Gamma-glutamylcysteine | Metabolite | CHEBI:58173 (ChEBI) ![]() | |
| Glu | Metabolite | CHEBI:28300 (ChEBI) ![]() | AKA glutamine |
| Glu | Metabolite | CHEBI:29985 (ChEBI) ![]() | AKA glutamine |
| Glutathione | Metabolite | CHEBI:57925 (ChEBI) ![]() | |
| Gly | Metabolite | CHEBI:57305 (ChEBI) ![]() | AKA glycine |
| H2S | Metabolite | CHEBI:16136 (ChEBI) ![]() | aka Hydrogen sulfide |
| H2S | Metabolite | CHEBI:29919 (ChEBI) ![]() | aka Hydrogen sulfide |
| Homocysteine | Metabolite | CHEBI:58199 (ChEBI) ![]() | |
| Hypotaurine | Metabolite | CHEBI:57853 (ChEBI) ![]() | |
| H₂O | Metabolite | CHEBI:15377 (ChEBI) ![]() | |
| KG | Metabolite | CHEBI:16810 (ChEBI) ![]() | aka a-ketoglutarate (a-KG) |
| MAT | GeneProduct | Q00266 (Uniprot-TrEMBL) ![]() | aka Methionine adenosyltransferase |
| MPST | Protein | P25325 (Uniprot-TrEMBL) ![]() | AKA 3-mercaptopyruvate sulfurtransferase |
| MS | Protein | Q99707 (Uniprot-TrEMBL) ![]() | AKA Methionine synthase |
| MT | GeneProduct | 2.1.1 (BRENDA) ![]() | AKA Methyltransferase |
| Methionine | Metabolite | CHEBI:57844 (ChEBI) ![]() | |
| NH₄⁺ | Metabolite | CHEBI:28938 (ChEBI) ![]() | |
| O₂ | Metabolite | CHEBI:15379 (ChEBI) ![]() | |
| Pyr | Metabolite | CHEBI:15361 (ChEBI) ![]() | AKA Pyruvic acid |
| RSSH | Metabolite | CHEBI:30605 (ChEBI) ![]() | AKA persulfurated thiol-containing compound (RSSH) |
| S-Adenosylhomocysteine | Metabolite | CHEBI:57856 (ChEBI) ![]() | |
| S-Adenosylmethionine | Metabolite | CHEBI:59789 (ChEBI) ![]() | |
| S-sulfocysteine | Metabolite | CHEBI:27891 (ChEBI) ![]() | |
| SAAH | Protein | P23526 (Uniprot-TrEMBL) ![]() | AKA Adenosylhomocysteinase |
| SDO | Protein | O95571 (Uniprot-TrEMBL) ![]() | AKA sulfur dioxygenase |
| SO | GeneProduct | 1.8.3.1 (BRENDA) ![]() | AKA Sulfite oxidase |
| SO3 2- | Metabolite | CHEBI:17359 (ChEBI) ![]() | AKA sulfite ion. |
| SO | GeneProduct | P51687 (Uniprot-TrEMBL) ![]() | AKA Sulfite oxidase |
| SQR | Protein | Q9Y6N5 (Uniprot-TrEMBL) ![]() | |
| ST | Protein | AKA sulfur transferase | |
| Serine | Metabolite | CHEBI:33384 (ChEBI) ![]() | |
| Sulfate | Metabolite | CHEBI:16189 (ChEBI) ![]() | |
| Sulfite | Metabolite | CHEBI:17359 (ChEBI) ![]() | |
| Taurine | Metabolite | CHEBI:15891 (ChEBI) ![]() | |
| Tetra- hydrofolate | Metabolite | CHEBI:57453 (ChEBI) ![]() | |
| Thiosulfate(2−) | Metabolite | CHEBI:16094 (ChEBI) ![]() | AKA thiosulfate ion |
| Transsulfuration pathway | Pathway |
Annotated Interactions
| View all... |
| Source | Target | Type | Database reference | Comment |
|---|---|---|---|---|
| 3-Mercaptopyruvic acid | H2S | mim-conversion | 21741 (Rhea) ![]() | |
| 5-Methyl tetrahydrofolate | mim-conversion | 11173 (Rhea) ![]() | ||
| ATP | mim-conversion | 21081 (Rhea) ![]() | ||
| Adenosine | mim-conversion | 21709 (Rhea) ![]() | ||
| Betaine | mim-conversion | 22337 (Rhea) ![]() | ||
| CO₂ | mim-conversion | 16878 (Rhea) ![]() | ||
| Cystathionine | Cysteine | mim-conversion | 14006 (Rhea) ![]() | |
| Cysteine sulfinic acid | Hypotaurine | mim-conversion | 16878 (Rhea) ![]() | |
| Cysteine | 3-Mercaptopyruvic acid | mim-conversion | 17442 (Rhea) ![]() | |
| Cysteine | Cysteine sulfinic acid | mim-conversion | 20442 (Rhea) ![]() | |
| Cysteine | Cystine | mim-conversion | 20598 (Rhea) ![]() | |
| Cysteine | Gamma-glutamylcysteine | mim-conversion | 13286 (Rhea) ![]() | |
| Cysteine | H2S | mim-conversion | 20916 (Rhea) ![]() | |
| Cystine | Cysteine | mim-conversion | 20599 (Rhea) ![]() | |
| Dimethylglycine | mim-conversion | 22337 (Rhea) ![]() | ||
| Gamma-glutamylcysteine | Glutathione | mim-conversion | 13558 (Rhea) ![]() | |
| Glu | mim-conversion | 13286 (Rhea) ![]() | ||
| Glu | mim-conversion | 17442 (Rhea) ![]() | ||
| Gly | mim-conversion | 13558 (Rhea) ![]() | ||
| Homocysteine | Cystathionine | mim-conversion | 10113 (Rhea) ![]() | |
| Homocysteine | mim-conversion | 11173 (Rhea) ![]() | ||
| Homocysteine | mim-conversion | 22337 (Rhea) ![]() | ||
| H₂O | mim-conversion | 24601 (Rhea) ![]() | ||
| KG | mim-conversion | 17442 (Rhea) ![]() | ||
| Methionine | S-Adenosylmethionine | mim-conversion | 21081 (Rhea) ![]() | |
| O₂ | mim-conversion | 20442 (Rhea) ![]() | ||
| Pyr | mim-conversion | 21741 (Rhea) ![]() | ||
| S-Adenosylhomocysteine | Homocysteine | mim-conversion | 21709 (Rhea) ![]() | |
| SO3 2- | Sulfate | mim-conversion | 24601 (Rhea) ![]() | |
| Serine | mim-conversion | 10113 (Rhea) ![]() | ||
| Sulfite | Sulfate | mim-conversion | 24601 (Rhea) ![]() | |
| Tetra- hydrofolate | mim-conversion | 11173 (Rhea) ![]() | ||
| mim-conversion | 14006 (Rhea) ![]() |
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