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BRENDA support

Ligand methylglyoxal

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Basic Ligand Information

Molecular Structure
Picture of methylglyoxal (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C3H4O2
methylglyoxal
AIJULSRZWUXGPQ-UHFFFAOYSA-N
Synonyms:
1,2-propanedione, 2-oxo-propanal, 2-oxo-propionaldehyde, 2-oxopropanal, Acetoaldehyde, methyl glyoxal, perdeuteriomethylglyoxal, Pyruvaldehyde, Pyruvic aldehyde


Show all pahtways known for Show all BRENDA pathways known for methylglyoxal

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (27 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
methylglyoxal + NADH + H+ = acetol + NAD+
show the reaction diagram
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pyruvic aldehyde + NAD(P)H + H+ = ?
show the reaction diagram
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methylglyoxal + NAD+ + H2O = pyruvate + NADH + H+
show the reaction diagram
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methylglyoxal + H2O = (R)-lactate
show the reaction diagram
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In Vivo Product in Enzyme-catalyzed Reactions (9 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
(S)-lactaldehyde + NADP+ = methylglyoxal + NADPH + H+
show the reaction diagram
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aminoacetone + H2O + O2 = methylglyoxal + NH3 + H2O2
show the reaction diagram
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(R)-lactate = 2-oxopropanal + H2O
show the reaction diagram
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Substrate in Enzyme-catalyzed Reactions (109 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
pyruvaldehyde + NADP+ = ?
show the reaction diagram
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methylglyoxal + NADPH = ?
show the reaction diagram
-
methylglyoxal + NADPH = ?
show the reaction diagram
-
methylglyoxal + NADH = L-lactaldehyde
show the reaction diagram
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methylglyoxal + NADPH + H+ = ?
show the reaction diagram
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methyl glyoxal + NAD(P)H = ? + NAD(P)+
show the reaction diagram
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methylglyoxal + NADP+ = ? + NADPH + H+
show the reaction diagram
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methylglyoxal + NADPH = ? + NADP+
show the reaction diagram
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methylglyoxal + glutathione + NAD+ = S-pyruvylglutathione + NADH
show the reaction diagram
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methyl glyoxal + NADH + H+ = ? + NAD+
show the reaction diagram
-
methylglyoxal + NADPH + H+ = ?
show the reaction diagram
-
methylglyoxal + NADPH + H+ = ?
show the reaction diagram
-
methylglyoxal + NADPH + H+ = ?
show the reaction diagram
-
methylglyoxal + NADPH = ?
show the reaction diagram
-
methylglyoxal + NADH = lactaldehyde + NAD+
show the reaction diagram
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methylglyoxal + NADPH = 1-hydroxyacetone + NADP+
show the reaction diagram
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methylglyoxal + NAD+ + H2O = pyruvate + NADH
show the reaction diagram
-
methylglyoxal + NAD+ + H2O = pyruvate + NADH + H+
show the reaction diagram
-
methylglyoxal + NADP+ + H2O = ?
show the reaction diagram
-
pyruvaldehyde + NAD+ + H2O = pyruvate + NADH
show the reaction diagram
-
methylglyoxal + phosphate + O2 + H2O = ? + H2O2
show the reaction diagram
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methylglyoxal + ferricyanide = 2-oxopropanoic acid + ferrocyanide + H+
show the reaction diagram
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methylglyoxal + NADPH = ?
show the reaction diagram
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L-ornithine + methylglyoxal + NADPH + H+ = ? + NADP+ + H2O
show the reaction diagram
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pyruvic aldehyde + (S)-alpha-methylbenzylamine = ? + acetophenone
show the reaction diagram
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pyruvaldehyde + (S)-(-)-1-phenylethylamine = ?
show the reaction diagram
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methylglyoxal + H2O = (R)-lactate
show the reaction diagram
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D-ribulose 5-phosphate + methylglyoxal = ?
show the reaction diagram
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pyruvate + methylglyoxal = ?
show the reaction diagram
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pyruvaldehyde + glyoxylate = ?
show the reaction diagram
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Product in Enzyme-catalyzed Reactions (22 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
propane-1,2-diol + NAD+ = methylglyoxal + NADH
show the reaction diagram
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(S)-lactaldehyde + NADP+ = methylglyoxal + NADPH + H+
show the reaction diagram
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hydroxyacetone + NAD+ = 2-oxopropanal + NADH
show the reaction diagram
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1,2-propanediol + O2 = 1,2-propanedione + H2O2
show the reaction diagram
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acetol + O2 = pyruvaldehyde + H2O2
show the reaction diagram
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aminoacetone + H2O + O2 = methylglyoxal + NH3 + H2O2
show the reaction diagram
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(RS)-3-chloropropane-1,2-diol + NAD+ = (R)-3-chloropropane-1,2-diol + 2-oxo-propionaldehyde + CH3COOH + Cl- + HCOOH + NADH
show the reaction diagram
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dihydroxyacetone phosphate = methylglyoxal + phosphate
show the reaction diagram
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(R)-lactate = 2-oxopropanal + H2O
show the reaction diagram
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glycerone phosphate = methylglyoxal + phosphate
show the reaction diagram
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malonic dialdehyde = methylglyoxal
show the reaction diagram
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Activator in Enzyme-catalyzed Reactions (4 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
up to 4.5fold induction of mRNA, activity and protein level, abolished in presence of cycloheximide or actinomycin D
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exogenous methylglyoxal (MG) upregulates Dictyostelium discoideum slug migration by triggering glutathione reductase and methylglyoxal reductase activity
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induces the PI3K/PKC/Raf-1-independent MEK/ERK signaling pathway by activation of MEKK1, accumulates in case of diabetes
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addition at pH 5.0 results in a significant 98% increase in the glycolytic rate
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Inhibitor in Enzyme-catalyzed Reactions (26 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
1.0 mM, 42% inhibition, 2 mM, 63% inhibition, methylglyoxal binds at an allosteric site of the enzyme
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in absence of NADPH
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strain CETC 978, 277 mM, complete inactivation after 50 min, in the presence of 30 mM benzoylformic acid complete inactivation after 20 min
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Arg184 and Arg185, located in the glutathione binding site of the enzyme are irreversibly modified by treatment with methylglyoxal
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substrate inhibition
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substrate inhibition
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with 1 mM methylglyoxal, GDH activity significantly decreases at 30 min of incubation, and markedly drops by 37% within 5 h compared to control
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decreases specific activity in a concentration-dependent manner
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photochemical inactivation: effect only in UV-light, Ki: 1.8-2.0 mM
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competitive inhibition
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26% inhibition at 4 mM
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linear noncompetitive inhibitor
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Metals and Ions (1 result)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
10 mM, enhanced tolerance to toxic stress in transgenic Vigna mungo
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Enzyme Kinetic Parameters

kcat Value (Turnover Number) (52 results)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE
0.12
-
at pH 7.4 and 37°C
4.4
-
at pH 7.0 and 25°C
18.17
-
pH and temperature not specified in the publication
0.663
-
pH 7.5, 37°C

KM Value (150 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
35
-
-
2.651
-
-
4.4
-
-
1.1
-
-
75
-
pH 7.0, 25°C
0.4
-
at pH 7.0 and 30°C
75
-
-
14.3
-
at pH 7.0 and 25°C
0.4
-
-
0.25084
-
pH 7.5, 37°C
5.1
-
-

Ki Value (3 results)

EC NUMBER
KI VALUE [MM]
KI VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
1.8
2
photochemical inactivation: effect only in UV-light

References & Links

Links to other databases for methylglyoxal

ChEBI
PubChem
ChEBI
PubChem