[Electron spin resonance of phosphorylating and non-phosphorylating submitochondrial particles].
Paramagnetic centres related with the work of ATP-synthetase, found earlier on mitochondria were studied on phosphorylating and non-phosphorylating submitochondrial particles (SMP). A complex doublet signal with half-width 38 . 10(-4) T was shown to be recorded only on actively phosphorylating and oligomycin-inhibited SMP. It was found that the signal components were conditioned by different paramagnetic centres, one of which (g = 2.03) seemed to be the metal centre, more probable non-hemeiron. The nature of the second signal characterized by evenly saturating doublet components with g = 2.03 and g = 2.00 is unclear. Studies of flavin signal saturation have also shown that it consists of two components: one of them--saturating, specific for non-phosphorylating SMP, another--non-saturating, mostly observed in phosphorylating SMP, probably conditioned by flavin--the constituent of ATP-synthetase.
D025181:ATP Synthetase Complexes; D000244:Adenosine Diphosphate / Q000378:metabolism; D000818:Animals; D004578:Electron Spin Resonance Spectroscopy; D007700:Kinetics; D008928:Mitochondria / Q000378:metabolism*; D008930:Mitochondria, Liver / Q000378:metabolism*; D009097:Multienzyme Complexes / Q000378:metabolism; D009840:Oligomycins / Q000494:pharmacology; D010766:Phosphorylation; D010770:Phosphotransferases / Q000378:metabolism; D051381:Rats; D013367:Submitochondrial Particles / Q000187:drug effects / Q000378:metabolism*
D009097:Multienzyme Complexes; D009840:Oligomycins; D000244:Adenosine Diphosphate; D010770:Phosphotransferases; D025181:ATP Synthetase Complexes
Elektronnyĭ paramagnitnyĭ rezonans fosforiliruiushchikh i nefosforiliruiushchikh submitokhondrial'nykh chastits.