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  1. Article ; Online: On the simulation and interpretation of substrate-water exchange experiments in photosynthetic water oxidation.

    Chernev, Petko / Aydin, A Orkun / Messinger, Johannes

    Photosynthesis research

    2024  

    Abstract: Water oxidation by photosystem II (PSII) sustains most life on Earth, but the molecular mechanism of this unique process remains controversial. The ongoing identification of the binding sites and modes of the two water-derived substrate oxygens (' ... ...

    Abstract Water oxidation by photosystem II (PSII) sustains most life on Earth, but the molecular mechanism of this unique process remains controversial. The ongoing identification of the binding sites and modes of the two water-derived substrate oxygens ('substrate waters') in the various intermediates (S
    Language English
    Publishing date 2024-03-21
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1475688-2
    ISSN 1573-5079 ; 0166-8595
    ISSN (online) 1573-5079
    ISSN 0166-8595
    DOI 10.1007/s11120-024-01084-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Measurements of Oxygen Evolution in Photosynthesis.

    Shevela, Dmitry / Schröder, Wolfgang P / Messinger, Johannes

    Methods in molecular biology (Clifton, N.J.)

    2024  Volume 2790, Page(s) 133–148

    Abstract: This chapter compares two different techniques for monitoring photosynthetic ... ...

    Abstract This chapter compares two different techniques for monitoring photosynthetic O
    MeSH term(s) Photosynthesis ; Oxygen/metabolism ; Mass Spectrometry/methods ; Photosystem II Protein Complex/metabolism ; Chlorophyll/metabolism ; Electrodes
    Chemical Substances Oxygen (S88TT14065) ; Photosystem II Protein Complex ; Chlorophyll (1406-65-1)
    Language English
    Publishing date 2024-04-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-0716-3790-6_8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Alternative Mechanism for O

    Guo, Yu / Messinger, Johannes / Kloo, Lars / Sun, Licheng

    Journal of the American Chemical Society

    2023  

    Abstract: ... ...

    Abstract O
    Language English
    Publishing date 2023-02-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.2c12174
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Solar energy conversion by photosystem II: principles and structures.

    Shevela, Dmitry / Kern, Jan F / Govindjee, Govindjee / Messinger, Johannes

    Photosynthesis research

    2023  Volume 156, Issue 3, Page(s) 279–307

    Abstract: Photosynthetic water oxidation by Photosystem II (PSII) is a fascinating process because it sustains life on Earth and serves as a blue print for scalable synthetic catalysts required for renewable energy applications. The biophysical, computational, and ...

    Abstract Photosynthetic water oxidation by Photosystem II (PSII) is a fascinating process because it sustains life on Earth and serves as a blue print for scalable synthetic catalysts required for renewable energy applications. The biophysical, computational, and structural description of this process, which started more than 50 years ago, has made tremendous progress over the past two decades, with its high-resolution crystal structures being available not only of the dark-stable state of PSII, but of all the semi-stable reaction intermediates and even some transient states. Here, we summarize the current knowledge on PSII with emphasis on the basic principles that govern the conversion of light energy to chemical energy in PSII, as well as on the illustration of the molecular structures that enable these reactions. The important remaining questions regarding the mechanism of biological water oxidation are highlighted, and one possible pathway for this fundamental reaction is described at a molecular level.
    MeSH term(s) Photosystem II Protein Complex/metabolism ; Solar Energy ; Photosynthesis ; Oxidation-Reduction ; Water/metabolism ; Oxygen/metabolism
    Chemical Substances Photosystem II Protein Complex ; Water (059QF0KO0R) ; Oxygen (S88TT14065)
    Language English
    Publishing date 2023-02-24
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1475688-2
    ISSN 1573-5079 ; 0166-8595
    ISSN (online) 1573-5079
    ISSN 0166-8595
    DOI 10.1007/s11120-022-00991-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Reversible Structural Isomerization of Nature's Water Oxidation Catalyst Prior to O-O Bond Formation.

    Guo, Yu / Messinger, Johannes / Kloo, Lars / Sun, Licheng

    Journal of the American Chemical Society

    2022  Volume 144, Issue 26, Page(s) 11736–11747

    Abstract: Photosynthetic water oxidation is catalyzed by a manganese-calcium oxide cluster, which experiences five "S-states" during a light-driven reaction cycle. The unique "distorted chair"-like geometry of the ... ...

    Abstract Photosynthetic water oxidation is catalyzed by a manganese-calcium oxide cluster, which experiences five "S-states" during a light-driven reaction cycle. The unique "distorted chair"-like geometry of the Mn
    MeSH term(s) Catalysis ; Isomerism ; Ligands ; Manganese/chemistry ; Oxidation-Reduction ; Oxygen/chemistry ; Photosystem II Protein Complex/chemistry ; Water/chemistry
    Chemical Substances Ligands ; Photosystem II Protein Complex ; Water (059QF0KO0R) ; Manganese (42Z2K6ZL8P) ; Oxygen (S88TT14065)
    Language English
    Publishing date 2022-06-24
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.2c03528
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Reversible Structural Isomerization of Nature’s Water Oxidation Catalyst Prior to O–O Bond Formation

    Guo, Yu / Messinger, Johannes / Kloo, Lars / Sun, Licheng

    Journal of the American Chemical Society. 2022 June 24, v. 144, no. 26

    2022  

    Abstract: Photosynthetic water oxidation is catalyzed by a manganese–calcium oxide cluster, which experiences five “S-states” during a light-driven reaction cycle. The unique “distorted chair”-like geometry of the Mn₄CaO₅₍₆₎ cluster shows structural flexibility ... ...

    Abstract Photosynthetic water oxidation is catalyzed by a manganese–calcium oxide cluster, which experiences five “S-states” during a light-driven reaction cycle. The unique “distorted chair”-like geometry of the Mn₄CaO₅₍₆₎ cluster shows structural flexibility that has been frequently proposed to involve “open” and “closed”-cubane forms from the S₁ to S₃ states. The isomers are interconvertible in the S₁ and S₂ states, while in the S₃ state, the open-cubane structure is observed to dominate inThermosynechococcus elongatus (cyanobacteria) samples. In this work, using density functional theory calculations, we go beyond the S₃⁺Yz state to the S₃ⁿYz• → S₄⁺Yz step, and report for the first time that the reversible isomerism, which is suppressed in the S₃⁺Yz state, is fully recovered in the ensuing S₃ⁿYz• state due to the proton release from a manganese-bound water ligand. The altered coordination strength of the manganese–ligand facilitates formation of the closed-cubane form, in a dynamic equilibrium with the open-cubane form. This tautomerism immediately preceding dioxygen formation may constitute the rate limiting step for O₂ formation, and exert a significant influence on the water oxidation mechanism in photosystem II.
    Keywords catalysts ; constitutional isomerization ; density functional theory ; geometry ; ligands ; oxidation ; oxygen ; photosynthesis ; tautomerization
    Language English
    Dates of publication 2022-0624
    Size p. 11736-11747.
    Publishing place American Chemical Society
    Document type Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.2c03528
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

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  7. Article ; Online: Substrate water exchange in the S

    de Lichtenberg, Casper / Messinger, Johannes

    Physical chemistry chemical physics : PCCP

    2020  Volume 22, Issue 23, Page(s) 12894–12908

    Abstract: In photosynthesis, dioxygen formation from water is catalyzed by the oxygen evolving complex (OEC) in Photosystem II (PSII) that harbours the ... ...

    Abstract In photosynthesis, dioxygen formation from water is catalyzed by the oxygen evolving complex (OEC) in Photosystem II (PSII) that harbours the Mn
    MeSH term(s) Calcium/chemistry ; Calcium/metabolism ; Crystallography, X-Ray ; Manganese/chemistry ; Manganese/metabolism ; Models, Molecular ; Molecular Conformation ; Oxygen/chemistry ; Oxygen/metabolism ; Photosystem II Protein Complex/chemistry ; Photosystem II Protein Complex/metabolism ; Water/chemistry ; Water/metabolism
    Chemical Substances Photosystem II Protein Complex ; Water (059QF0KO0R) ; Manganese (42Z2K6ZL8P) ; Oxygen (S88TT14065) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2020-05-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d0cp01380c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Book: Includes a collection of articles on the theme of photosynthesis: from natural to artificial

    Messinger, Johannes

    (Physical chemistry chemical physics ; 16.2014,24)

    2014  

    Author's details ed. Johannes Messinger
    Series title Physical chemistry chemical physics ; 16.2014,24
    Language English
    Size S. 11785 - 12600
    Publisher RSC
    Publishing place Cambridge
    Document type Book
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  9. Article: Molecular basis for turnover inefficiencies (misses) during water oxidation in photosystem II.

    Han, Guangye / Chernev, Petko / Styring, Stenbjörn / Messinger, Johannes / Mamedov, Fikret

    Chemical science

    2022  Volume 13, Issue 29, Page(s) 8667–8678

    Abstract: Photosynthesis stores solar light as chemical energy and efficiency of this process is highly important. The electrons required for ... ...

    Abstract Photosynthesis stores solar light as chemical energy and efficiency of this process is highly important. The electrons required for CO
    Language English
    Publishing date 2022-07-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/d2sc00854h
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Assignment of the slowly exchanging substrate water of nature's water-splitting cofactor.

    de Lichtenberg, Casper / Rapatskiy, Leonid / Reus, Michael / Heyno, Eiri / Schnegg, Alexander / Nowaczyk, Marc M / Lubitz, Wolfgang / Messinger, Johannes / Cox, Nicholas

    Proceedings of the National Academy of Sciences of the United States of America

    2024  Volume 121, Issue 11, Page(s) e2319374121

    Abstract: Identifying the two substrate water sites of nature's water-splitting cofactor ( ... ...

    Abstract Identifying the two substrate water sites of nature's water-splitting cofactor (Mn
    Language English
    Publishing date 2024-03-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.2319374121
    Database MEDical Literature Analysis and Retrieval System OnLINE

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