4.1.1.5: acetolactate decarboxylase
This is an abbreviated version!
For detailed information about acetolactate decarboxylase, go to the full flat file.
Word Map on EC 4.1.1.5
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4.1.1.5
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diacetyl
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2,3-butanediol
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lactis
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lactococcus
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brewer
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diacetylactis
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biovar
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aerogenes
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butanediol
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brewing
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wort
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synthesis
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nutrition
- 4.1.1.5
- diacetyl
- 2,3-butanediol
- lactis
- lactococcus
-
brewer
- diacetylactis
-
biovar
- aerogenes
-
butanediol
- brewing
-
wort
- synthesis
- nutrition
Reaction
Synonyms
ADC, ALD, aldB, ALDC, alpha-Acetolactate decarboxylase, AlsD, BudA1, Decarboxylase, acetolactate
ECTree
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Reaction
Reaction on EC 4.1.1.5 - acetolactate decarboxylase
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(2S)-2-hydroxy-2-methyl-3-oxobutanoate = (3R)-3-hydroxybutan-2-one + CO2
mechanism
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(2S)-2-hydroxy-2-methyl-3-oxobutanoate = (3R)-3-hydroxybutan-2-one + CO2
the carboxy group of alpha-acetolactate is replaced regiospecifically by hydrogen. This process takes place with overall inversion of configuration
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(2S)-2-hydroxy-2-methyl-3-oxobutanoate = (3R)-3-hydroxybutan-2-one + CO2
(R)-3-hydroxybutan-2-one i.e. ((R)-2-acetoin)
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(2S)-2-hydroxy-2-methyl-3-oxobutanoate = (3R)-3-hydroxybutan-2-one + CO2
catalytic decarboxylation mechanism, overview