PMID: 11607090Jul 1, 1990Paper

Initial electron-transfer in the reaction center from Rhodobacter sphaeroides

Proceedings of the National Academy of Sciences of the United States of America
W HolzapfelW Zinth

Abstract

The initial electron transfer steps in the photosynthetic reaction center of the purple bacterium Rhodobacter sphaeroides have been investigated by femtosecond time-resolved spectroscopy. The experimental data taken at various wavelengths demonstrate the existence of at least four intermediate states within the first nanosecond. The difference spectra of the intermediates and transient photodichroism data are fully consistent with a sequential four-step model of the primary electron transfer: Light absorption by the special pair P leads to the state P*. From the excited primary donor P*, the electron is transferred within 3.5 +/- 0.4 ps to the accessory bacteriochlorophyll B. State P+B- decays with a time constant of 0.9 +/- 0.3 ps passing the electron to the bacteriopheophytin H. Finally, the electron is transferred from H- to the quinone QA within 220 +/- 40 ps.

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Citations

May 1, 1996·Photosynthesis Research·T J Aartsma, J Amesz
Feb 1, 1994·Journal of Bioenergetics and Biomembranes·U ErmlerM Schiffer
Jun 1, 1995·Journal of Bioenergetics and Biomembranes·C C MoserP L Dutton
May 9, 2013·Nature Communications·Frank SchlawinShaul Mukamel
Dec 15, 1991·Proceedings of the National Academy of Sciences of the United States of America·C K ChanG R Fleming
Sep 15, 1992·Proceedings of the National Academy of Sciences of the United States of America·M DuG R Fleming
Jan 15, 1992·Proceedings of the National Academy of Sciences of the United States of America·M H VosJ L Martin
Oct 15, 1992·Proceedings of the National Academy of Sciences of the United States of America·U FinkeleW Zinth
Dec 15, 1993·Proceedings of the National Academy of Sciences of the United States of America·T ArltW Zinth
Sep 26, 2007·Annual Review of Physical Chemistry·Villy Sundström
Jun 13, 2002·Proceedings of the National Academy of Sciences of the United States of America·Sebastian SpörleinJosef Wachtveitl
Nov 13, 1998·Proceedings of the National Academy of Sciences of the United States of America·L Y Zhang, R A Friesner
Mar 2, 2011·Journal of Photochemistry and Photobiology. B, Biology·Alexey Yu SemenovMahir D Mamedov
Oct 12, 2010·European Journal of Cell Biology·Delphine OnidasKlaus Gerwert
Jan 3, 2012·Biochimica Et Biophysica Acta·R A KhatypovV A Shuvalov
Apr 1, 2015·Faraday Discussions·Wolfgang Junge
May 31, 2018·Journal of Biophotonics·Matthias DomkeRonald Sroka
Feb 27, 1992·Nature·C C MoserP L Dutton

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