M. Meyer

TL;DR: Extensive transient absorbance data are fully consistent with a stepwise electron transfer via the accessory bacteriochlorophyll and an angle between the transition moments of the special pair and the species related with the 0.9-ps kinetic component is found.

TL;DR: In this article, the free energy of the first intermediate P+B−A, where the electron has reached the accessory bacteriochlorophyll BA lies ≈ 450 cm−1 below the initially excited special pair P*.

TL;DR: The spontaneous addition of PCB to PecA and that of the reaction catalyzed by PecE/F, were characterized by their photochemistry and by absorption, fluorescence, circular dichroism of the four states obtained by irradiation with light and/or modification of Cys-alpha 98/99 with thiol-directed reagents.

TL;DR: It is concluded that PecE and PecF jointly catalyze not only the addition ofphycocyanobilin to PecA, but also its isomerization to the native phycoviolobilin chromophore.

TL;DR: In this article, the primary electron transfer in modified reaction centers of Rhodobacter sphaeroides R26.1 was studied in which both bacteriochlorophyll-a molecules were replaced by pheophytin-a to more than 90%.