[Regulation of ion transport in mitochondria by respiratory chain enzymes and ATPase].
The effects of the respiratory chain inhibitors as well as those of the inhibitors and substrates of ATP-synthetase in Ca2+ and K+ transport induced in the mitochondria upon the medium acidification in the presence of phosphate or arsenate, were investigated. Evidence has been obtained suggesting that under the experimental conditions used the transmembrane fluxes of K+ and Ca2+ are paralleled with H+ leakage through the proton channel of ATPase. It was found also that the system inducing cation fluxes at low pH values included peroxidation and hydrolysis of phospholipids. A scheme of regulation of ion transport in the mitochondria involving oxidative phosphorylation and oxidation and hydrolysis of lipids is proposed.
D000251:Adenosine Triphosphatases / Q000378:metabolism*; D000818:Animals; D002118:Calcium / Q000378:metabolism; D002412:Cations / Q000378:metabolism*; D004579:Electron Transport; D006868:Hydrolysis; D066298:In Vitro Techniques; D007473:Ion Channels / Q000378:metabolism; D050356:Lipid Metabolism; D008054:Lipid Peroxides / Q000378:metabolism; D008274:Magnesium / Q000378:metabolism; D008564:Membrane Potentials; D008930:Mitochondria, Liver / Q000201:enzymology / Q000378:metabolism*; D010085:Oxidative Phosphorylation; D011188:Potassium / Q000378:metabolism; D051381:Rats
D002412:Cations; D007473:Ion Channels; D008054:Lipid Peroxides; D000251:Adenosine Triphosphatases; D008274:Magnesium; D011188:Potassium; D002118:Calcium
Reguliatsiia ionnogo transporta v mitokhondriiakh fermentami dykhatel'noĭ tsepi i ATPazy.