scholarly journals Single Crystal X- and Q-Band EPR Spectroscopy of a Binuclear Mn2(III,IV) Complex Relevant to the Oxygen-Evolving Complex of Photosystem II

2004 ◽  
Vol 126 (24) ◽  
pp. 7486-7495 ◽  
Author(s):  
Junko Yano ◽  
Kenneth Sauer ◽  
Jean-Jacques Girerd ◽  
Vittal K. Yachandra
Keyword(s):  
Photosystem Ii ◽  
Single Crystal ◽  
Epr Spectroscopy ◽  
Oxygen Evolving Complex ◽  
Oxygen Evolving

EPR Spectroscopy and the Electronic Structure of the Oxygen-Evolving Complex of Photosystem II

2013 ◽  
Vol 44 (6) ◽  
pp. 691-720 ◽  
Author(s):  
Thomas Lohmiller ◽  
William Ames ◽  
Wolfgang Lubitz ◽  
Nicholas Cox ◽  
Sushil K. Misra
Keyword(s):  
Electronic Structure ◽  
Photosystem Ii ◽  
Epr Spectroscopy ◽  
Oxygen Evolving Complex ◽  
Oxygen Evolving

scholarly journals Polarized X-ray Absorption Spectroscopy of Single-Crystal Mn(V) Complexes Relevant to the Oxygen-Evolving Complex of Photosystem II

2007 ◽  
Vol 129 (43) ◽  
pp. 12989-13000 ◽  
Author(s):  
Junko Yano ◽  
John Robblee ◽  
Yulia Pushkar ◽  
Matthew A. Marcus ◽  
Jesper Bendix ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Single Crystal ◽  
Absorption Spectroscopy ◽  
Oxygen Evolving Complex ◽  
X Ray ◽  
Oxygen Evolving ◽  
X Ray Absorption

scholarly journals Structural Changes in the Acceptor Site of Photosystem II upon Ca2+/Sr2+ Exchange in the Mn4CaO5 Cluster Site and the Possible Long-Range Interactions

Biomolecules ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 371
Author(s):  
Koua
Keyword(s):  
Crystal Structure ◽  
Photosystem Ii ◽  
Long Range ◽  
Electron Acceptor ◽  
Structural Changes ◽  
Acceptor Site ◽  
Oxygen Evolving Complex ◽  
Long Range Interactions ◽  
Structural Perturbations ◽  
Oxygen Evolving

The Mn4CaO5 cluster site in the oxygen-evolving complex (OEC) of photosystem II (PSII) undergoes structural perturbations, such as those induced by Ca2+/Sr2+ exchanges or Ca/Mn removal. These changes have been known to induce long-range positive shifts (between +30 and +150 mV) in the redox potential of the primary quinone electron acceptor plastoquinone A (QA), which is located 40 Å from the OEC. To further investigate these effects, we reanalyzed the crystal structure of Sr-PSII resolved at 2.1 Å and compared it with the native Ca-PSII resolved at 1.9 Å. Here, we focus on the acceptor site and report the possible long-range interactions between the donor, Mn4Ca(Sr)O5 cluster, and acceptor sites.

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