2.2.1.9: 2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylic-acid synthase
This is an abbreviated version!
For detailed information about 2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylic-acid synthase, go to the full flat file.
Word Map on EC 2.2.1.9
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2.2.1.9
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menaquinone
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thiamin
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thdp-dependent
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diphosphate-dependent
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alpha-ketoglutarate
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2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylic
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dioxide
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benzoylformate
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decarboxylases
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stereoselective
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hydrolases
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alpha/beta
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o-succinylbenzoic
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metal-ion-dependent
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three-domain
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two-stage
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medium-resolution
- 2.2.1.9
- menaquinone
- thiamin
-
thdp-dependent
-
diphosphate-dependent
- alpha-ketoglutarate
-
2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylic
- dioxide
- benzoylformate
- decarboxylases
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stereoselective
- hydrolases
- alpha/beta
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o-succinylbenzoic
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metal-ion-dependent
-
three-domain
-
two-stage
-
medium-resolution
Reaction
Synonyms
(1R,2S,5S,6S)-2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate synthase, (1R,2S,5S,6S)-2-succinyl-5-enolpyruvyl-6-hydroxycyclohex-3-ene-1-carboxylate synthase, 2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexadiene-1-carboxylate synthase, 2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate synthase, 2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylic acid synthase, EC 2.5.1.64, EcMenD, MenD, Rv0555, SEPHCHC synthase, SHCHC synthase
ECTree
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Reaction
Reaction on EC 2.2.1.9 - 2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylic-acid synthase
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isochorismate + 2-oxoglutarate = 5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate + CO2
isochorismate + 2-oxoglutarate = 5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate + CO2
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isochorismate + 2-oxoglutarate = 5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate + CO2
reaction follows a ping-pong bi-bi mechanism
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isochorismate + 2-oxoglutarate = 5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate + CO2
two-stage mechanism that is primarily driven by the chemical properties of the cofactor thiamine diphosphate
isochorismate + 2-oxoglutarate = 5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate + CO2
proposed mechanism for formation of the tetrahedral intermediate in MenD catalysis. The strong interaction at the terminal carboxylate is proposed to restrict the rotation around C2-C2alpha so that no hydrogen bond is formed between C2alpha-OH and N4' of the cofactor throughout the reaction process. This disables the formation of the enamine intermediate and enables the formation of the tetrahedral intermediate. Modeling, overview