Protein Information

Name cytochrome c1
Synonyms CYC 1; CYC1; Cytochrome C1; Cytochrome c 1; Cytochrome C1s; Cytochrome c 1s

Compound Information

Name rotenone
CAS

Reference List

PubMed Abstract RScore(About this table)
210759 Halestrap AP: Stimulation of the respiratory chain of rat liver mitochondria between cytochrome c1 and cytochrome c by glucagon treatment of rats. Biochem J. 1978 Jun 15;172(3):399-405.

Measurement of the cytochrome spectra under uncoupled conditions in the presence of succinate and rotenone demonstrates a crossover between cytochromes c and c (1) when control mitochondria are compared with those from glucagon-treated rats, cytochrome c being more oxidized and cytochrome c (1) more reduced in control mitochondria.
82(1,1,1,2) Details
1664494 Benzi G, Curti D, Pastoris O, Marzatico F, Villa RF, Dagani F: Sequential damage in mitochondrial complexes by peroxidative stress. Neurochem Res. 1991 Dec;16(12):1295-302.

The following parameters are evaluated: (a) content of respiratory components, namely ubiquinone, cytochrome b, cytochrome c1, cytochrome c; (b) specific activity of enzymes, namely citrate synthase, succinate dehydrogenase, rotenone-sensitive NADH: cytochrome c reductase, cytochrome oxidase; (c) concentration of reduced glutathione (GSH).
6(0,0,1,1) Details
11597127 Guidarelli A, Clementi E, De Nadai C, Bersacchi R, Cantoni O: TNFalpha enhances the DNA single-strand breakage induced by the short-chain lipid hydroperoxide analogue tert-butylhydroperoxide via ceramide-dependent inhibition of complex III followed by enforced superoxide and hydrogen peroxide formation. Exp Cell Res. 2001 Oct 15;270(1):56-65.


The following lines of evidence suggest that the enhancing effects of TNFalpha are mediated by inhibition of complex III and by the ensuing formation of superoxides and hydrogen peroxide: (a) the effects of TNFalpha were mimicked by the complex III inhibitor antimycin A; (b) the effects of TNFalpha, or antimycin A, were abolished by the complex I inhibitor rotenone, or by myxothiazol, an agent which inhibits the electron flow from the reduced coenzyme Q to cytochrome c (1) and therefore prevents ubisemiquinone formation; (c) the effects of TNFalpha, or antimycin A, were not observed in respiration-deficient cells; and (d) the effects of TNFalpha, or antimycin A, were sensitive to catalase.
0(0,0,0,0) Details
9396723 Guidarelli A, Clementi E, Brambilla L, Cantoni O: Mechanism of the antimycin A-mediated enhancement of t-butylhydroperoxide-induced single-strand breakage in DNA. Biochem J. 1997 Dec 15;328 ( Pt 3):801-6.


The hypothesis that these effects are selectively linked to inhibition of the electron transport from cytochrome b to cytochrome c1 is validated by the following observations: (1) two complex III inhibitors, antimycin A and 2-heptyl-4-hydroxyquinoline N-oxide, enhanced the tB-OOH-induced DNA cleavage over the same concentration range as that in which inhibition of oxygen consumption was observed; (2) the complex III inhibitor-mediated enhancement of tB-OOH-induced DNA damage was abolished by the complex I inhibitor rotenone or by glucose omission, and (3) the enhancing effects of antimycin A were not observed in respiration-deficient cells.
0(0,0,0,0) Details
6243963 Malviya AN, Nicholls P, Elliott WB: Observations on the oxidoreduction of the two cytochromes b in cytochrome c-deficient mitochondria and submitochondrial particles. Biochim Biophys Acta. 1980 Jan 4;589(1):137-49.


Cytochrome bT reduced in the presence of antimycin can be reoxidized by O2 if rotenone is added to an NADH-reduced sysem or malonate to a succinate-reduced system.
0(0,0,0,0) Details