Protein Information

Name CoQ 1
Synonyms COQ 1; transprenyltransferase; COQ1; DPS 1; DPS1; Decaprenyl pyrophosphate synthetase subunit 1; Decaprenyl diphosphate synthase subunit 1; PDSS 1…

Compound Information

Name rotenone
CAS

Reference List

PubMed Abstract RScore(About this table)
17601793 Merker MP, Audi SH, Lindemer BJ, Krenz GS, Bongard RD: Role of mitochondrial electron transport complex I in coenzyme Q1 reduction by intact pulmonary arterial endothelial cells and the effect of hyperoxia. Am J Physiol Lung Cell Mol Physiol. 2007 Sep;293(3):L809-19. Epub 2007 Jun 29.

The mitochondrial electron transport complex I inhibitor rotenone decreased the CoQ (1) reduction rate by 85% in the normoxic cells and 44% in the hyperoxia-exposed cells.
36(0,1,1,6) Details
17706244 de Wit LE, Spruijt L, Schoonderwoerd GC, de Coo IF, Smeets HJ, Scholte HR, Sluiter W: A simplified and reliable assay for complex I in human blood lymphocytes. . J Immunol Methods. 2007 Sep 30;326(1-2):76-82. Epub 2007 Aug 1.

The results of the present study show that permeabilization of human blood lymphocytes in the presence of protease inhibitors by three cycles of freeze-thawing enables reproducible detection of the rotenone-sensitive complex I activity.
To that end, the water-soluble coenzyme Q (10) analogue CoQ (1) and a relatively high concentration of blood lymphocytes were combined in small quartz cuvettes so that the amount of blood needed for this assay remained low.
1(0,0,0,1) Details
16641458 Biagini GA, Viriyavejakul P, O'neill PM, Bray PG, Ward SA: Functional characterization and target validation of alternative complex I of Plasmodium falciparum mitochondria. Antimicrob Agents Chemother. 2006 May;50(5):1841-51.

PfNDH2 was shown to actively oxidize NADH in the presence of quinone electron acceptors CoQ (1) and decylubiquinone with an apparent K (m) for NADH of approximately 17 and 5 muM, respectively.
The inhibitory profile of PfNDH2 revealed that the enzyme activity was insensitive to rotenone, consistent with recent genomic data indicating the absence of the canonical NADH:dehydrogenase enzyme.
1(0,0,0,1) Details
18703762 Audi SH, Merker MP, Krenz GS, Ahuja T, Roerig DL, Bongard RD: Coenzyme Q1 redox metabolism during passage through the rat pulmonary circulation and the effect of hyperoxia. J Appl Physiol. 2008 Oct;105(4):1114-26. Epub 2008 Aug 14.

In normoxic lungs, CoQ (1) H (2) efflux rates when CoQ (1) was infused decreased by 58 and 33% in the presence of rotenone (mitochondrial complex I inhibitor) and dicumarol [NAD (P) H-quinone oxidoreductase 1 (NQO1) inhibitor], respectively.
36(0,1,1,6) Details
19059197 Fato R, Bergamini C, Bortolus M, Maniero AL, Leoni S, Ohnishi T, Lenaz G: Differential effects of mitochondrial Complex I inhibitors on production of reactive oxygen species. Biochim Biophys Acta. 2009 May;1787(5):384-92. Epub 2008 Nov 14.

Our results indicate that different Complex I inhibitors can be grouped into two classes: Class A inhibitors (Rotenone, Piericidin A and Rolliniastatin 1 and 2) increase ROS production; Class B inhibitors (Stigmatellin, Mucidin, Capsaicin and Coenzyme Q (2)) prevent ROS production also in the presence of Class A inhibitors.
This behaviour relates the prooxidant CoQ (1) activity to a hydrophilic electron escape site.
1(0,0,0,1) Details