Dual-mode EPR spectrometry of O2-pulsed cytochrome c oxidase.
نویسندگان
چکیده
O2-activated bovine heart cytochrome c oxidase has been examined by dual-mode EPR spectrometry. Resonances have been observed at g = 10 and 4.5 in the parallel mode and at g = 10, 5, 1.8 and 1.7 in the normal mode. The bulk of these signals are interpreted to come from a stoichiometric S = 2 system with magnitude of a = 0.17 cm-1, D = +2.1 cm-1, magnitude of E = 0.026 cm-1, g = 2. Exchange coupling between cytochrome a3 and CuB is not indicated.
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ورودعنوان ژورنال:
- Biochimica et biophysica acta
دوره 765 3 شماره
صفحات -
تاریخ انتشار 1984