catechol degradation II (meta-cleavage pathway)
Marín M, Plumeier I, Pieper DH. Degradation of 2,3-dihydroxybenzoate by a novel meta-cleavage pathway. J Bacteriol. 2012 Aug;194(15):3851–60. PMID: 22609919; PMCID: PMC3416551.; Sala-Trepat JM, Evans WC. The meta cleavage of catechol by Azotobacter species. 4-Oxalocrotonate pathway. Eur J Biochem. 1971 Jun 11;20(3):400–13. doi: 10.1111/j.1432-1033.1971.tb01406.x. PMID: 4325686.
Metabolites
Enzyme
| EC Number | name | full name | note |
|---|---|---|---|
| 4.2.-.- | |||
| 1.13.11.2 | catechol 2,3-dioxygenase | catechol:oxygen 2,3-oxidoreductase (decyclizing) | |
| 1.2.1.10 | acetaldehyde dehydrogenase (acetylating) | acetaldehyde:NAD+ oxidoreductase (CoA-acetylating) | |
| 1.2.1.85 | 2-hydroxymuconate-6-semialdehyde dehydrogenase | 2-hydroxymuconate-6-semialdehyde:NAD+ oxidoreductase | |
| 4.1.1.77 | 2-oxo-3-hexenedioate decarboxylase | (3E)-2-oxohex-3-enedioate carboxy-lyase (2-oxopent-4-enoate-forming) | |
| 4.1.3.39 | 4-hydroxy-2-oxovalerate aldolase | 4-hydroxy-2-oxopentanoate pyruvate-lyase (acetaldehyde-forming) | |
| 5.3.2.6 | 2-hydroxymuconate tautomerase | (2Z,4E)-2-hydroxyhexa-2,4-dienedioate keto-enol isomerase |
Proteins
| Protein ID | name | full name |
|---|---|---|
| P06622 | xylE | Metapyrocatechase |
| P23105 | xylG | 2-hydroxymuconic semialdehyde dehydrogenase |
| P23107 | xylJ | 2-hydroxypent-2,4-dienoate hydratase |
| P49155 | xylI | 4-oxalocrotonate decarboxylase |
| P51016 | dmpG | 4-hydroxy-2-oxovalerate aldolase |
| P51019 | xylK | 4-hydroxy-2-oxovalerate aldolase |
| Q01468 | xylH | 2-hydroxymuconate tautomerase |
| Q52060 | dmpF | Acetaldehyde dehydrogenase |