[ESR spectra of paramagnetic centers of ferricytochrome c, induced by UV-radiation at 77 K].
Paramagnetic properties of ferricytochrome c aqueous glyceric solutions exposed to UV-light of various wave lengths at 77K have been investigated. Absorption of longwave UV- and visible light by hemin (5-240 min) does not induce the formation of paramagnetic centres in hemoprotein. However absorption of UV-light by chromophorms of a protein component of ferricytochrome c induces the formation of free radicals with a quantum yield of 0.07. During long-term (40 to 200 min) UV-irradiation (260-380 nm) of protein solutions several types of paramagnetic centres including HCO radicals are formed.
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D000818:Animals; D003574:Cytochrome c Group / Q000032:analysis / Q000528:radiation effects*; D004578:Electron Spin Resonance Spectroscopy; D006736:Horses; D066298:In Vitro Techniques; D009206:Myocardium / Q000201:enzymology; D012996:Solutions; D013696:Temperature; D014466:Ultraviolet Rays
D003574:Cytochrome c Group; D012996:Solutions
Spektry EPR paramagnitnykh tsentrov ferritsitokhroma c, indutsirovannykh UV-radiatsieĭ pri 77K.