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EC Tree
IUBMB Comments There are several forms of malate dehydrogenases that differ by their use of substrate and cofactors. This NAD+-dependent enzyme forms oxaloacetate and unlike EC 1.1.1.38, malate dehydrogenase (oxaloacetate-decarboxylating), is unable to convert it to pyruvate. Also oxidizes some other 2-hydroxydicarboxylic acids. cf. EC 1.1.1.82, malate dehydrogenase (NADP+); EC 1.1.1.299, malate dehydrogenase [NAD(P)+]; and EC 1.1.5.4, malate dehydrogenase (quinone).
The taxonomic range for the selected organisms is: Moritella sp. The enzyme appears in selected viruses and cellular organisms
Synonyms
malate dehydrogenase, mdh, mitochondrial malate dehydrogenase, malic dehydrogenase, cytosolic malate dehydrogenase, nad-dependent malate dehydrogenase, maldh, mitochondrial mdh, s-mdh, l-malate dehydrogenase,
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(R)-2-hydroxyacid dehydrogenase
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L-malate dehydrogenase
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malate (NAD) dehydrogenase
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-
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malate dehydrogenase (NAD)
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-
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malic acid dehydrogenase
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-
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malic dehydrogenase
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NAD-dependent malate dehydrogenase
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NAD-dependent malic dehydrogenase
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NAD-L-malate dehydrogenase
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NAD-linked malate dehydrogenase
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-
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NAD-malate dehydrogenase
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NAD-malic dehydrogenase
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NAD-specific malate dehydrogenase
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Vegetative protein 69
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-
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-
-, -, -, -, -, -, -, -, -, -, -, -, -, -, -, -, -, -, -, -, -
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(S)-malate:NAD+ oxidoreductase
There are several forms of malate dehydrogenases that differ by their use of substrate and cofactors. This NAD+-dependent enzyme forms oxaloacetate and unlike EC 1.1.1.38, malate dehydrogenase (oxaloacetate-decarboxylating), is unable to convert it to pyruvate. Also oxidizes some other 2-hydroxydicarboxylic acids. cf. EC 1.1.1.82, malate dehydrogenase (NADP+); EC 1.1.1.299, malate dehydrogenase [NAD(P)+]; and EC 1.1.5.4, malate dehydrogenase (quinone).
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oxaloacetate + NADH + H+
(S)-malate + NAD+
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r
(S)-malate + NAD+
oxaloacetate + NADH + H+
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r
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0.0135
NADH
pH 7.0, 30°C, recombinant enzyme
0.0135
NADH
enzyme from strain 5710, at pH 7.5 and 30°C
0.0172
NADH
enzyme from strain 2D2, at pH 7.5 and 30°C
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0.00483
oxaloacetate
pH 7.0, 30°C
0.00386
oxaloacetate
pH 7.0, 30°C, recombinant enzyme
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7.5 - 8
reduction of oxaloacetate
7.5 - 8
reduction of oxaloacetate, recombinant enzyme
9.5 - 10
dehydrogenation of malate
9.5 - 10
dehydrogenation of malate, recombinant enzyme
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SwissProt
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H229Q
mutant enzyme is less resistant to heat denaturation than the wild-type enzyme
Q229H
mutant enzyme is more resistant to heat denaturation than the wild-type enzyme
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45
midpoint of denaturation for the recombinant enzyme
42
midpoint of denaturation for the recombinant enzyme
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expression in Escherichia coli
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Saito, R.; Nakayama, A.
Differences in malate dehydrogenases from the obligately piezophilic deep-sea bacterium Moritella sp. strain 2D2 and the psychrophilic bacterium Moritella sp. strain 5710
FEMS Microbiol. Lett.
233
165-172
2004
Moritella sp., Moritella sp. (Q7X3X5), Moritella sp. 5710, Moritella sp. 2D2 (Q7X3X5)
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