The pulsed electron–electron double resonance and “” electron spin echo study of the oriented oxygen-evolving and Mn-depleted preparations of photosystem II

AV Astashkin, H Hara, A Kawamori - The Journal of chemical physics, 1998 - pubs.aip.org
A “2+ 1” electron spin echo method has been applied to measure the angular orientation of
the radius-vector R DZ joining the redox-active tyrosine residues YD and YZ in membrane-
oriented Mn-depleted preparation of photosystem II. The angle between R DZ and the
normal to the photosystem II membrane was determined to be 100°±2°, where the angle of
0° corresponds to the direction from YD towards the stromal side of the membrane, along the
membrane normal. A pulsed electron–electron double resonance method has been used to …
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