Protein Information

Name isocitrate dehydrogenase
Synonyms ICD M; IDH; IDP; NADP(+) specific ICDH; Oxalosuccinate decarboxylase; IDH 2; IDH2; IDHM…

Compound Information

Name rotenone
CAS

Reference List

PubMed Abstract RScore(About this table)
4146799 Moyle J, Mitchell P: The proton-translocating nicotinamide-adenine dinucleotide (phosphate) transhydrogenase of rat liver mitochondria. Biochem J. 1973 Mar;132(3):571-85.

The NAD-linked isocitrate dehydrogenase activity was destroyed by an endogenous autolytic system or by added nucleotide pyrophosphatase, and was restored by a catalytic amount of NADP. 2.
During oxidation of isocitrate by acetoacetate in intact, anaerobic, mitochondria via the rhein-sensitive, but rotenone- and arsenite-insensitive, NAD (P) transhydrogenase, measurements of the rates of carbonyl cyanide p-trifluoromethoxyphenylhydrazone-sensitive and carbonyl cyanide p-trifluoromethoxyphenylhydrazone-insensitive pH change in the presence of various oxoglutarate/isocitrate concentration ratios gave an --> H (+)/2e (-) quotient of 1.94+/-0.12 for outward proton translocation by the NAD (P) transhydrogenase. 4.
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16667685 Pascal N, Dumas R, Douce R: Comparison of the Kinetic Behavior toward Pyridine Nucleotides of NAD-Linked Dehydrogenases from Plant Mitochondria. Plant Physiol. 1990 Sep;94(1):189-193.

In this article we compare the kinetic behavior toward pyridine nucleotides (NAD (+), NADH) of NAD (+)-malic enzyme, pyruvate dehydrogenase, isocitrate dehydrogenase, alpha-ketoglutarate dehydrogenase, and glycine decarboxylase extracted from pea (Pisum sativum) leaf and potato (Solanum tuberosum) tuber mitochondria.
It is suggested that NAD (+)-linked malic enzyme, when fully activated, is able to raise the matricial NADH level up to the required concentration to fully engage the rotenone-resistant internal NADH-dehydrogenase, whose affinity for NADH is weaker than complex I.
1(0,0,0,1) Details
11337409 Moller IM: PLANT MITOCHONDRIA AND OXIDATIVE STRESS: Electron Transport, NADPH Turnover, and Metabolism of Reactive Oxygen Species. Annu Rev Plant Physiol Plant Mol Biol. 2001 Jun;52:561-591.

In addition to complexes I-IV, the plant mitochondrial ETC contains a non-proton-pumping alternative oxidase as well as two rotenone-insensitive, non-proton-pumping NAD (P) H dehydrogenases on each side of the inner membrane: NDex on the outer surface and NDin on the inner surface.
The antioxidants are kept in a reduced state by matrix NADPH produced by NADP-isocitrate dehydrogenase and non-proton-pumping transhydrogenase activities.
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8390371 Komuniecki PR, Johnson J, Kamhawi M, Komuniecki R: Mitochondrial heterogeneity in the parasitic nematode, Ascaris suum. Exp Parasitol. 1993 Jun;76(4):424-37.

However, the activities of several tricarboxylic acid cycle enzymes, including citrate synthase and isocitrate dehydrogenase, were about 100-fold higher in testis/seminal vesicle mitochondria than muscle mitochondria.
The incorporation of 32Pi into organic phosphate by either muscle or testis/seminal vesicle mitochondria appeared to be dependent on malate and pyruvate, and incorporation was inhibited by rotenone but not cyanide.
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16663145 Laties GG: Membrane-Associated NAD-Dependent Isocitrate Dehydrogenase in Potato Mitochondria. Plant Physiol. 1983 Aug;72(4):953-958.

Whereas in intact mitochondria the activity of the membrane-bound enzyme is insensitive to rotenone, and to butylmalonate, an inhibitor of organic acid transport, isocitrate oxidation by the soluble matrix enzyme is inhibited by both.
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6682758 Evans CT, Scragg AH, Ratledge C: Regulation of citrate efflux from mitochondria of oleaginous and non-oleaginous yeasts by adenine nucleotides. Eur J Biochem. 1983 May 16;132(3):609-15.

To explain these observations the mitochondrial NAD+-dependent isocitrate dehydrogenase was studied in a number of yeasts.
The effects of ATP and AMP were not observed in mitochondria whose metabolism had been inhibited by antimycin A and rotenone indicating the direct regulation of the citrate translocase was not involved. 3.
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16828729 Benit P, Goncalves S, Philippe Dassa E, Briere JJ, Martin G, Rustin P: Three spectrophotometric assays for the measurement of the five respiratory chain complexes in minuscule biological samples. Clin Chim Acta. 2006 Dec;374(1-2):81-6. Epub 2006 Jun 2.

A second assay measures the activity of complex II followed by glycerol-3-phosphate dehydrogenase and isocitrate dehydrogenase.
A third assay measures rotenone-sensitive complex I activity and subsequently oligomycin-sensitive complex V activity.
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3214168 Moore GA, Weis M, Orrenius S, O'Brien PJ: Role of sulfhydryl groups in benzoquinone-induced Ca2+ release by rat liver mitochondria. Arch Biochem Biophys. 1988 Dec;267(2):539-50.

Incubation of rat liver mitochondria with benzoquinone derivatives in the presence of succinate plus rotenone has been shown to cause NAD (P) H oxidation followed by Ca2+ release.
Isocitrate dehydrogenase was also inhibited by p-benzoquinone, but the cofactors NAD (P) H and Mn2+ protected the enzyme.
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19763263 Johnson F, Kaplitt MG: Novel mitochondrial substrates of omi indicate a new regulatory role in neurodegenerative disorders. PLoS One. 2009 Sep 18;4(9):e7100.

Additionally our gene expression studies, using rotenone (an inhibitor of Complex I) showed Omi expression was silenced when pdhb and idh3a were increased when a sub-lethal dose was applied.
Pyruvate dehydrogenase (PDH) and isocitrate dehydrogenase (IDH) are two key Kreb's cycle enzymes that catalyse oxidative decarboxylation control points in mitochondrial respiration.
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3990291 Swierczynski J, Klimek J, Zelewski L: The role of malic enzyme in the malate dependent biosynthesis of progesterone in the mitochondrial fraction of human term placenta. J Steroid Biochem. 1985 Mar;22(3):415-8.


While mitochondria were incubated in the presence of Mn2+ the citrate formation was stimulated significantly both by NAD+ and NADP+ and was inhibited by hydroxymalonate, arsenite, butylmalonate and rotenone.
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