Electrogenic reduction of Rhodospirillum rubrum reaction centre bacteriochlorophyll P870 + by redox dyes : Indication of intraprotein electron transfer

Reduction of laser flash-oxidized bacteriochlorophyll in Rhodospirillum rubrum reaction centre proteoliposomes or in cytochrome c 2-deficient R. rubrum chromatophores by artificial redox dyes like N,N,N',N'-tetramethyl- p-phenylenediamine or phenazine methosulphate gives rise to an electro...

Full description

Saved in:
Bibliographic Details
Published in:FEBS letters 1985-09, Vol.189 (1), p.45-49
Main Authors: Drachev, Lel A., Kaminskaya, Olga P., Konstantinov, Alexander A., Semenov, Alexey Yu, Skulachev, Vladimir P.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Cell structures and functions
Chloroplast, photosynthetic membrane and photosynthesis
Fundamental and applied biological sciences. Psychology
Molecular and cellular biology
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Reduction of laser flash-oxidized bacteriochlorophyll in Rhodospirillum rubrum reaction centre proteoliposomes or in cytochrome c 2-deficient R. rubrum chromatophores by artificial redox dyes like N,N,N',N'-tetramethyl- p-phenylenediamine or phenazine methosulphate gives rise to an electrogenic phase in the millisecond range. This phase contributes as much as 20% to the total photoelectric response and is ascribed to vectorial electron transfer from the reaction centre protein surface to the protein-embedded Mg-porphyrin rings of P870 +. Rhodospirillum rubrum Membrane potential Proteoliposome Reaction center bacteriochlorophyll Intramolecular electron transfer Rapid kinetics
ISSN:0014-5793
1873-3468
DOI:10.1016/0014-5793(85)80839-5