EPR detected triplet formation in a single crystal of reaction center protein from the photosynthetic bacterium Rhodopseudomonas sphaeroides R-26

Abstract

Single crystals were obtained from the photosynthetic bacterium Rhodopseudomonas sphaeroides R-26. At low temperatures these crystals are highly photoactive, as is demonstrated by the observation of the T 0-populated donor triplet state. The angle dependence of the transitions of this triplet state showed that the space group of this crystal is orthorhombic. Bacterial photosynthesis Rhodopseudomonas sphaeroides R-26 EPR Reaction center triplet Protein crystal