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Your query returned 7 entries. Printable version
EC | 1.13.11.57 | ||||||||
Accepted name: | gallate dioxygenase | ||||||||
Reaction: | 3,4,5-trihydroxybenzoate + O2 = (1E)-4-oxobut-1-ene-1,2,4-tricarboxylate | ||||||||
For diagram of the protocatechuate 3,4-cleavage pathway, click here | |||||||||
Glossary: | 3,4,5-trihydroxybenzoate = gallate | ||||||||
Other name(s): | GalA; gallate:oxygen oxidoreductase | ||||||||
Systematic name: | 3,4,5-trihydroxybenzoate:oxygen oxidoreductase | ||||||||
Comments: | Contains non-heme Fe2+. The enzyme is a ring-cleavage dioxygenase that acts specifically on 3,4,5-trihydroxybenzoate to produce the keto-tautomer of 4-oxalomesaconate [1,2]. | ||||||||
Links to other databases: | BRENDA, EAWAG-BBD, EXPASY, KEGG, MetaCyc | ||||||||
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EC | 2.1.1.341 | ||||||||
Accepted name: | vanillate/3-O-methylgallate O-demethylase | ||||||||
Reaction: | (1) vanillate + tetrahydrofolate = protocatechuate + 5-methyltetrahydrofolate (2) 3-O-methylgallate + tetrahydrofolate = gallate + 5-methyltetrahydrofolate |
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Glossary: | protocatechuate = 3,4-dihydroxybenzoate vanillate = 4-hydroxy-3-methoxybenzoate gallate = 3,4,5-trihydroxybenzoate |
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Other name(s): | ligM (gene name) | ||||||||
Systematic name: | vanillate:tetrahydrofolate O-methyltransferase | ||||||||
Comments: | The enzyme, characterized from the bacterium Sphingomonas sp. SYK6, is involved in the degradation of lignin. The enzyme has similar activities with vanillate and 3-O-methylgallate. | ||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||||
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EC | 3.1.1.20 | ||||||||
Accepted name: | tannase | ||||||||
Reaction: | digallate + H2O = 2 gallate | ||||||||
Glossary: | gallate = 3,4,5-trihydroxybenzoate digallate = 3,4-dihydroxy-5-(3,4,5-trihydroxybenzoyloxy)benzoate |
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Other name(s): | tannase S; tannin acetylhydrolase | ||||||||
Systematic name: | tannin acylhydrolase | ||||||||
Comments: | Also hydrolyses ester links in other tannins. | ||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 9025-71-2 | ||||||||
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EC | 4.1.1.59 | ||||||||
Accepted name: | gallate decarboxylase | ||||||||
Reaction: | 3,4,5-trihydroxybenzoate = 1,2,3-trihydroxybenzene + CO2 | ||||||||
Glossary: | 3,4,5-trihydroxybenzoate = gallate 1,2,3-trihydroxybenzene = pyrogallol |
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Other name(s): | gallic acid decarboxylase; gallate carboxy-lyase; 3,4,5-trihydroxybenzoate carboxy-lyase (pyrogallol-forming) | ||||||||
Systematic name: | 3,4,5-trihydroxybenzoate carboxy-lyase (1,2,3-trihydroxybenzene-forming) | ||||||||
Links to other databases: | BRENDA, EAWAG-BBD, EXPASY, KEGG, MetaCyc, CAS registry number: 37290-51-0 | ||||||||
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EC | 4.1.3.17 | ||||||||
Accepted name: | 4-hydroxy-4-methyl-2-oxoglutarate aldolase | ||||||||
Reaction: | (1) 4-hydroxy-4-methyl-2-oxoglutarate = 2 pyruvate (2) 2-hydroxy-4-oxobutane-1,2,4-tricarboxylate = oxaloacetate + pyruvate |
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For diagram of the protocatechuate 3,4-cleavage pathway, click here | |||||||||
Other name(s): | pyruvate aldolase; γ-methyl-γ-hydroxy-α-ketoglutaric aldolase; 4-hydroxy-4-methyl-2-ketoglutarate aldolase; 4-hydroxy-4-methyl-2-oxoglutarate pyruvate-lyase; HMG aldolase; CHA aldolase; 4-carboxy-4-hydroxy-2-oxoadipate aldolase | ||||||||
Systematic name: | 4-hydroxy-4-methyl-2-oxoglutarate pyruvate-lyase (pyruvate-forming) | ||||||||
Comments: | Requires a divalent metal ion [3]. This enzyme participates in the degradation of 3,4-dihydroxybenzoate (via the meta-cleavage pathway), phthalate, syringate and 3,4,5-trihydroxybenzoate [1-3]. The enzyme from Pseudomonas straminea can also catalyse the activity of EC 4.1.3.16, 4-hydroxy-2-oxoglutarate aldolase, and the decarboxylation of oxaloacetate [3]. | ||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 37290-65-6 | ||||||||
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EC | 4.2.1.83 | ||||||||
Accepted name: | 4-oxalomesaconate hydratase | ||||||||
Reaction: | 2-hydroxy-4-oxobutane-1,2,4-tricarboxylate = (1E,3E)-4-hydroxybuta-1,3-diene-1,2,4-tricarboxylate + H2O | ||||||||
For diagram of the protocatechuate 3,4-cleavage pathway, click here | |||||||||
Other name(s): | 4-oxalmesaconate hydratase; 4-carboxy-2-oxohexenedioate hydratase; 4-carboxy-2-oxobutane-1,2,4-tricarboxylate 2,3-hydro-lyase; oxalmesaconate hydratase; γ-oxalmesaconate hydratase; 2-hydroxy-4-oxobutane-1,2,4-tricarboxylate 2,3-hydro-lyase; LigJ; GalB | ||||||||
Systematic name: | (1E,3E)-4-hydroxybuta-1,3-diene-1,2,4-tricarboxylate 1,2-hydro-lyase (2-hydroxy-4-oxobutane-1,2,4-tricarboxylate-forming) | ||||||||
Comments: | This enzyme participates in the degradation of 3,4-dihydroxybenzoate (via the meta-cleavage pathway), syringate and 3,4,5-trihydroxybenzoate, catalysing the reaction in the opposite direction [1-3]. It accepts the enol-form of 4-oxalomesaconate, 2-hydroxy-4-carboxy-hexa-2,4-dienedioate [4]. | ||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 85204-95-1 | ||||||||
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EC | 5.3.2.8 | ||||||||
Accepted name: | 4-oxalomesaconate tautomerase | ||||||||
Reaction: | (1E)-4-oxobut-1-ene-1,2,4-tricarboxylate = (1E,3E)-4-hydroxybuta-1,3-diene-1,2,4-tricarboxylate | ||||||||
For diagram of the protocatechuate 3,4-cleavage pathway, click here | |||||||||
Glossary: | (1E)-4-oxobut-1-ene-1,2,4-tricarboxylate = keto tautomer of 4-oxalomesaconate (1E,3E)-4-hydroxybuta-1,3-diene-1,2,4-tricarboxylate = one of the enol tautomers of 4-oxalomesaconate |
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Other name(s): | GalD | ||||||||
Systematic name: | 4-oxalomesaconate keto—enol-isomerase | ||||||||
Comments: | This enzyme has been characterized from the bacterium Pseudomonas putida KT2440 and is involved in the degradation pathway of syringate and 3,4,5-trihydroxybenzoate. It catalyses the interconversion of two of the tautomers of 4-oxalomesaconate, a reaction that can also occur spontaneously. | ||||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||||
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