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Article

Selective perturbation of the second electron transfer step in mutant bacterial reaction centers.

Biochimica et biophysica acta - 22 Apr 2002

Schenkl Selma, Spörlein Sebastian, Müh Frank, Witt Heike, Lubitz Wolfgang, Zinth Wolfgang, Wachtveitl Josef

Abstract excerpt

In order to specifically perturb the primary electron acceptor B(A) -- a monomeric bacteriochlorophyll (BChl) a -- involved in bacterial photosynthetic charge separation (CS), the protein environment of B(A) in the reaction center (RC) of Rhodobacter sphaeroides was modified by site-directed mutagenesis. Isolated RCs were characterized by redox titrations, low temperature optical spectroscopy, ENDOR/TRIPLE...

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PMID: 12034469
DOI: 10.1016/s0005-2728(02)00211-6

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