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Tuning the redox potential of the primary electron donor in bacterial reaction centers by manganese binding and light-induced structural changes.

Author(s): Deshmukh SS, Kálmán L

Biochim Biophys Acta Bioenerg. 2020 Aug 07;:148285 Authors: Deshmukh SS, Kálmán L

Article GUID: 32777306
Bound detergent molecules in bacterial reaction centers facilitate detection of tetryl explosive.

Author(s): Modafferi D, Zazubovich V, Kálmán L

Photosynth Res. 2020 Jul 06;: Authors: Modafferi D, Zazubovich V, Kálmán L

Article GUID: 32632533
Proton release due to manganese binding and oxidation in modified bacterial reaction centers.

Author(s): Kálmán L, Thielges MC, Williams JC, Allen JP

Biochemistry. 2005 Oct 11;44(40):13266-73 Authors: Kálmán L, Thielges MC, Williams JC, Allen JP

Article GUID: 16201752
Comparison of bacterial reaction centers and photosystem II.

Author(s): Kálmán L, Williams JC, Allen JP

Photosynth Res. 2008 Oct-Dec;98(1-3):643-55 Authors: Kálmán L, Williams JC, Allen JP

Article GUID: 18853275
Effect of anions on the binding and oxidation of divalent manganese and iron in modified bacterial reaction centers.

Author(s): Tang K, Williams JC, Allen JP, Kálmán L

Biophys J. 2009 Apr 22;96(8):3295-304 Authors: Tang K, Williams JC, Allen JP, Kálmán L

Article GUID: 19383473
Light-induced conformational changes in photosynthetic reaction centers: dielectric relaxation in the vicinity of the dimer.

Author(s): Deshmukh SS, Williams JC, Allen JP, Kálmán L

Biochemistry. 2011 Jan 25;50(3):340-8 Authors: Deshmukh SS, Williams JC, Allen JP, Kálmán L

Article GUID: 21141811
Light-induced conformational changes in photosynthetic reaction centers: redox-regulated proton pathway near the dimer.

Author(s): Deshmukh SS, Williams JC, Allen JP, Kálmán L

Biochemistry. 2011 Apr 26;50(16):3321-31 Authors: Deshmukh SS, Williams JC, Allen JP, Kálmán L

Article GUID: 21410139
Light-induced conformational changes in photosynthetic reaction centers: impact of detergents and lipids on the electronic structure of the primary electron donor.

Author(s): Deshmukh SS, Akhavein H, Williams JC, Allen JP, Kalman L

Biochemistry. 2011 Jun 14;50(23):5249-62 Authors: Deshmukh SS, Akhavein H, Williams JC, Allen JP, Kalman L

Article GUID: 21561160
Lipid binding to the carotenoid binding site in photosynthetic reaction centers.

Author(s): Deshmukh SS, Tang K, Kálmán L

J Am Chem Soc. 2011 Oct 12;133(40):16309-16 Authors: Deshmukh SS, Tang K, Kálmán L

Article GUID: 21894992
The interaction of streptococcal enolase with canine plasminogen: the role of surfaces in complex formation.

Author(s): Balhara V, Deshmukh SS, Kálmán L, Kornblatt JA

PLoS One. 2014;9(2):e88395 Authors: Balhara V, Deshmukh SS, Kálmán L, Kornblatt JA

Article GUID: 24520380
Low potential manganese ions as efficient electron donors in native anoxygenic bacteria.

Author(s): Deshmukh SS, Protheroe C, Ivanescu MA, Lag S, Kálmán L

Biochim Biophys Acta Bioenerg. 2018 Apr;1859(4):227-233 Authors: Deshmukh SS, Protheroe C, Ivanescu MA, Lag S, Kálmán L

Article GUID: 29355486
Title:Comparison of bacterial reaction centers and photosystem II.
Authors:Kálmán L,  Williams JC,  Allen JP
Link:https://www.ncbi.nlm.nih.gov/pubmed/18853275?dopt=Abstract
Category:Photosynth Res
PMID:18853275
Dept Affiliation: PHYSICS
1 Department of Physics, Concordia University, Montreal, QC, Canada.

Description:

Comparison of bacterial reaction centers and photosystem II.

Photosynth Res. 2008 Oct-Dec;98(1-3):643-55

Authors: Kálmán L, Williams JC, Allen JP

Abstract

In photosynthetic organisms, the utilization of solar energy to drive electron and proton transfer reactions across membranes is performed by pigment-protein complexes including bacterial reaction centers (BRCs) and photosystem II. The well-characterized BRC has served as a structural and functional model for the evolutionarily-related photosystem II for many years. Even though these complexes transfer electrons and protons across cell membranes in analogous manners, they utilize different secondary electron donors. Photosystem II has the unique ability to abstract electrons from water, while BRCs use molecules with much lower potentials as electron donors. This article compares the two complexes and reviews the factors that give rise to the functional differences. Also discussed are the modifications that have been performed on BRCs so that they perform reactions, such as amino acid and metal oxidation, which occur in photosystem II.

PMID: 18853275 [PubMed - indexed for MEDLINE]