Ligand (S)-acetoin

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Basic Ligand Information

Molecular Structure
Picture of (S)-acetoin (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C4H8O2
(S)-acetoin
ROWKJAVDOGWPAT-VKHMYHEASA-N
Synonyms:
(2S)-acetoin, (3S)-3-hydroxybutan-2-one, (3S)-acetoin, (S)-2-acetoin, L(+)-acetoin, L-(+)-acetoin


Show all pahtways known for Show all BRENDA pathways known for (S)-acetoin

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
(2S)-acetoin + NADH + H+ = (2S,3S)-butane-2,3-diol + NAD+
show the reaction diagram
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(2S)-acetoin + NADH + H+ = (2S,3S)-butane-2,3-diol + NAD+
show the reaction diagram
-

In Vivo Product in Enzyme-catalyzed Reactions (5 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
diacetyl + NADH + H+ = (S)-acetoin + NAD+
show the reaction diagram
-
-

Substrate in Enzyme-catalyzed Reactions (6 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
(3S)-acetoin + NADH + H+ = (2S,3S)-2,3-butanediol + NAD+
show the reaction diagram
-
(2S)-acetoin + NADH + H+ = (2S,3S)-butane-2,3-diol + NAD+
show the reaction diagram
-

Product in Enzyme-catalyzed Reactions (25 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
diacetyl + NADPH + H+ = (3S)-acetoin + NADP+
show the reaction diagram
-
-
meso-2,3-butanediol + NAD+ = (3S)-acetoin + NADH
show the reaction diagram
-
-
pyruvate + acetylphosphinate + NAD+ = (S)-acetoin + ? + NADH
show the reaction diagram
-
-
acetaldehyde + acetaldehyde = (S)-acetoin + ?
show the reaction diagram
-
-
D-(-)-Acetoin = L-(+)-Acetoin
show the reaction diagram
-

Enzyme Kinetic Parameters

kcat Value (Turnover Number) (2 results)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE
202
-
pH 6.0, 30C
202
-
at pH 10.0 and 30C

KM Value (3 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.47
-
pH 6.0, 30C
0.23
-
at pH 10.5 and 30C
0.47
-
at pH 10.0 and 30C

References & Links

Links to other databases for (S)-acetoin

ChEBI
PubChem
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PubChem