1.1.1.82: malate dehydrogenase (NADP+)
This is an abbreviated version!
For detailed information about malate dehydrogenase (NADP+), go to the full flat file.
Word Map on EC 1.1.1.82
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1.1.1.82
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chloroplast
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nadp-malate
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dikinase
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3.1.3.11
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ferredoxin-thioredoxin
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agriculture
- 1.1.1.82
- chloroplast
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nadp-malate
- dikinase
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3.1.3.11
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ferredoxin-thioredoxin
- agriculture
Reaction
Synonyms
(S)-malate dehydrogenase, dehydrogenase, malate (nicotinamide adenine dinucleotide phosphate), L-malate:NAD oxidoreductase, malate NADP dehydrogenase, malic dehydrogenase (nicotinamide adenine dinucleotide phosphate), MDH, NADP malate dehydrogenase, NADP+-dependent malate dehydrogenase, NADP-dependent malate dehydrogenase, NADP-linked malate dehydrogenase, NADP-malate dehydrogenase, NADP-malic enzyme, NADP-MDH, NADP-MDH1, NADP-MDH2, NADPH-MDH
ECTree
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Inhibitors
Inhibitors on EC 1.1.1.82 - malate dehydrogenase (NADP+)
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diethyldicarbonate
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inactivation follows pseudo-first-order reaction kinetics, partial protection by NADP+, complete protection in presence of NADP+, 0.25 M hydroxylamine causes total reversal of inhibition
HgCl2
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activity of the oxidized enzyme in presence of guanidine is unaffected by 0.1 mM HgCl2 in presence of 1 mM EDTA and by 0.005 mM HgCl2 in absence of EDTA, activity of the reduced form of enzyme is completely abolished
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MDH activity is inhibited by over 200 mM NADPH
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1 mM, activity of the oxidized enzyme in presence of guanidine is unaffected, activity of the reduced form of enzyme is completely abolished
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sensitivity of the light-activation of the enzyme to high light is at least partially due to a competition for electrons with CO2 fixation
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additional information
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light modulation of the enzyme is also regulated via the chloroplastic NADPH/NADP+ ratio, a high ratio being inhibitory for the modulation reaction
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additional information
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sensitivity of the light-activation of the enzyme to high light is at least partially due to a competition for electrons with CO2 fixation
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additional information
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the light activation of the enzyme is decreased by high light intensities only in the presence of CO2, i.e. when there is strong competition for reducing power
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