Electrostatic Dominoes: Long Distance Propagation of Mutational Effects in Photosynthetic Reaction Centers of Rhodobacter capsulatus

Biochemistry ◽  
1995 ◽  
Vol 34 (26) ◽  
pp. 8390-8397 ◽  
Author(s):  
Pierre Sebban ◽  
Peter Maroti ◽  
Marianne Schiffer ◽  
Deborah K. Hanson
Keyword(s):  
Rhodobacter Capsulatus ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Long Distance ◽  
Distance Propagation

Temperature-independent electron transfer in Rhodobacter capsulatus wild-type and HisM200 .fwdarw. Leu photosynthetic reaction centers

1991 ◽  
Vol 95 (8) ◽  
pp. 3379-3383 ◽  
Author(s):  
Lynda M. McDowell ◽  
Christine Kirmaier ◽  
Dewey Holten
Keyword(s):  
Electron Transfer ◽  
Rhodobacter Capsulatus ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Wild Type

Initial electron transfer in photosynthetic reaction centers of Rhodobacter capsulatus mutants

1991 ◽  
Vol 176 (3-4) ◽  
pp. 366-372 ◽  
Author(s):  
Chi-Kin Chan ◽  
Lin X-Q Chen ◽  
Theodore J. DiMagno ◽  
Deborah K. Hanson ◽  
Sharron L. Nance ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Rhodobacter Capsulatus ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Initial Electron

scholarly journals Optimizing multi-step B-side charge separation in photosynthetic reaction centers from Rhodobacter capsulatus

2016 ◽  
Vol 1857 (2) ◽  
pp. 150-159 ◽  
Author(s):  
Kaitlyn M. Faries ◽  
Lucas L. Kressel ◽  
Nicholas P. Dylla ◽  
Marc J. Wander ◽  
Deborah K. Hanson ◽  
...  
Keyword(s):  
Charge Separation ◽  
Rhodobacter Capsulatus ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers

scholarly journals Putative Hydrogen Bond to Tyrosine M208 in Photosynthetic Reaction Centers from Rhodobacter capsulatus Significantly Slows Primary Charge Separation

2014 ◽  
Vol 118 (24) ◽  
pp. 6721-6732 ◽  
Author(s):  
Miguel Saggu ◽  
Brett Carter ◽  
Xiaoxue Zhou ◽  
Kaitlyn Faries ◽  
Lynette Cegelski ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Charge Separation ◽  
Rhodobacter Capsulatus ◽  
Reaction Centers ◽  
Photosynthetic Reaction Centers ◽  
Primary Charge Separation

scholarly journals Excitonic structure and charge separation in the heliobacterial reaction center probed by multispectral multidimensional spectroscopy

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yin Song ◽  
Riley Sechrist ◽  
Hoang H. Nguyen ◽  
William Johnson ◽  
Darius Abramavicius ◽  
...  
Keyword(s):  
Reaction Center ◽  
Charge Separation ◽  
Electronic Spectroscopy ◽  
Spectroscopic Studies ◽  
Primary Electron ◽  
Reaction Centers ◽  
Separation Mechanism ◽  
Photosynthetic Reaction Centers ◽  
Density Analysis ◽  
Function Relationship

AbstractPhotochemical reaction centers are the engines that drive photosynthesis. The reaction center from heliobacteria (HbRC) has been proposed to most closely resemble the common ancestor of photosynthetic reaction centers, motivating a detailed understanding of its structure-function relationship. The recent elucidation of the HbRC crystal structure motivates advanced spectroscopic studies of its excitonic structure and charge separation mechanism. We perform multispectral two-dimensional electronic spectroscopy of the HbRC and corresponding numerical simulations, resolving the electronic structure and testing and refining recent excitonic models. Through extensive examination of the kinetic data by lifetime density analysis and global target analysis, we reveal that charge separation proceeds via a single pathway in which the distinct A0 chlorophyll a pigment is the primary electron acceptor. In addition, we find strong delocalization of the charge separation intermediate. Our findings have general implications for the understanding of photosynthetic charge separation mechanisms, and how they might be tuned to achieve different functional goals.

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