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41.
  • X-Ray Damage to the Mn4Ca C... X-Ray Damage to the Mn4Ca Complex in Single Crystals of Photosystem II: A Case Study for Metalloprotein Crystallography
    Yano, Junko; Kern, Jan; Irrgang, Klaus-Dieter ... Proceedings of the National Academy of Sciences - PNAS, 08/2005, Volume: 102, Issue: 34
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    X-ray absorption spectroscopy was used to measure the damage caused by exposure to x-rays to the Mn4Ca active site in single crystals of photosystem II as a function of dose and energy of x-rays, ...
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42.
  • Generation of intense phase... Generation of intense phase-stable femtosecond hard X-ray pulse pairs
    Zhang, Yu; Kroll, Thomas; Weninger, Clemens ... Proceedings of the National Academy of Sciences - PNAS, 03/2022, Volume: 119, Issue: 12
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    Coherent nonlinear spectroscopies and imaging in the X-ray domain provide direct insight into the coupled motions of electrons and nuclei with resolution on the electronic length scale and timescale. ...
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43.
  • Direct Detection of Oxygen ... Direct Detection of Oxygen Ligation to the Mn₄Ca Cluster of Photosystem II by X-ray Emission Spectroscopy
    Pushkar, Yulia; Long, Xi; Glatzel, Pieter ... Angewandte Chemie, January 18, 2010, Volume: 49, Issue: 4
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    Open access

    Seeing O: Mn Kβ2,5 and Kβ′′ X‐ray emission spectra arise from transitions from the ligand 2s and 2p shells of the metal complexes to the metal 1s levels. In biological systems, it is difficult to ...
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44.
  • Structural isomers of the S... Structural isomers of the S 2 state in photosystem II: do they exist at room temperature and are they important for function?
    Chatterjee, Ruchira; Lassalle, Louise; Gul, Sheraz ... Physiologia plantarum, 05/2019, Volume: 166, Issue: 1
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    In nature, an oxo-bridged Mn CaO cluster embedded in photosystem II (PSII), a membrane-bound multi-subunit pigment protein complex, catalyzes the water oxidation reaction that is driven by ...
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45.
  • Taking snapshots of photosy... Taking snapshots of photosynthetic water oxidation using femtosecond X-ray diffraction and spectroscopy
    Kern, Jan; Tran, Rosalie; Alonso-Mori, Roberto ... Nature communications, 07/2014, Volume: 5, Issue: 1
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    The dioxygen we breathe is formed by light-induced oxidation of water in photosystem II. O2 formation takes place at a catalytic manganese cluster within milliseconds after the photosystem II ...
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46.
  • Preparation and properties of a monomeric high-spin Mn(V)-oxo complex
    Taguchi, Taketo; Gupta, Rupal; Lassalle-Kaiser, Benedikt ... Journal of the American Chemical Society, 2012-Feb-01, 20120201, Volume: 134, Issue: 4
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    Oxomanganese(V) species have been implicated in a variety of biological and synthetic processes, including their role as a key reactive center within the oxygen-evolving complex in photosynthesis. ...
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47.
  • Observation of Seeded Mn Kβ... Observation of Seeded Mn Kβ Stimulated X-Ray Emission Using Two-Color X-Ray Free-Electron Laser Pulses
    Kroll, Thomas; Weninger, Clemens; Fuller, Franklin D ... Physical review letters, 07/2020, Volume: 125, Issue: 3
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    Kβ x-ray emission spectroscopy is a powerful probe for electronic structure analysis of 3d transition metal systems and their ultrafast dynamics. Selectively enhancing specific spectral regions would ...
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48.
  • Capturing the sequence of e... Capturing the sequence of events during the water oxidation reaction in photosynthesis using XFELs
    Simon, Philipp S.; Makita, Hiroki; Bogacz, Isabel ... FEBS letters, January 2023, Volume: 597, Issue: 1
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    Ever since the discovery that Mn was required for oxygen evolution in plants by Pirson in 1937 and the period‐four oscillation in flash‐induced oxygen evolution by Joliot and Kok in the 1970s, ...
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  • Structural changes in the S... Structural changes in the S3 state of the oxygen evolving complex in photosystem II
    Hatakeyama, Makoto; Ogata, Koji; Fujii, Katsushi ... Chemical physics letters, 05/2016, Volume: 651, Issue: C
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    Display omitted •The S3 state of the Mn4CaO5-cluster in photosystem II was investigated by DFT.•The S3 state structure consisting of only 2.7–2.8Å MnMn distances was discussed.•The binding mode of ...
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50.
  • High-Resolution XFEL Struct... High-Resolution XFEL Structure of the Soluble Methane Monooxygenase Hydroxylase Complex with its Regulatory Component at Ambient Temperature in Two Oxidation States
    Srinivas, Vivek; Banerjee, Rahul; Lebrette, Hugo ... Journal of the American Chemical Society, 08/2020, Volume: 142, Issue: 33
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    Open access

    Soluble methane monooxygenase (sMMO) is a multicomponent metalloenzyme that catalyzes the conversion of methane to methanol at ambient temperature using a nonheme, oxygen-bridged dinuclear iron ...
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