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| Verfasst von: | Srinivas, Vivek [VerfasserIn]  |
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| | Banerjee, Rahul [VerfasserIn] |
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| | Lebrette, Hugo [VerfasserIn] |
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| | Jones, Jason C. [VerfasserIn] |
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| | Aurelius, Oskar [VerfasserIn] |
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| | Kim, In-Sik [VerfasserIn] |
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| | Pham, Cindy C. [VerfasserIn] |
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| | Gul, Sheraz [VerfasserIn] |
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| | Sutherlin, Kyle D. [VerfasserIn] |
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| | Bhowmick, Asmit [VerfasserIn] |
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| | John, Juliane [VerfasserIn] |
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| | Bozkurt, Esra [VerfasserIn] |
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| | Fransson, Thomas [VerfasserIn] |
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| | Aller, Pierre [VerfasserIn] |
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| | Butryn, Agata [VerfasserIn] |
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| | Bogacz, Isabel [VerfasserIn] |
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| | Simon, Philipp [VerfasserIn] |
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| | Keable, Stephen [VerfasserIn] |
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| | Britz, Alexander [VerfasserIn] |
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| | Tono, Kensuke [VerfasserIn] |
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| | Kim, Kyung Sook [VerfasserIn] |
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| | Park, Sang-Youn [VerfasserIn] |
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| | Lee, Sang Jae [VerfasserIn] |
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| | Park, Jaehyun [VerfasserIn] |
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| | Alonso-Mori, Roberto [VerfasserIn] |
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| | Fuller, Franklin D. [VerfasserIn] |
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| | Batyuk, Alexander [VerfasserIn] |
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| | Brewster, Aaron S. [VerfasserIn] |
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| | Bergmann, Uwe [VerfasserIn] |
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| | Sauter, Nicholas K. [VerfasserIn] |
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| | Orville, Allen M. [VerfasserIn] |
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| | Yachandra, Vittal K. [VerfasserIn] |
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| | Yano, Junko [VerfasserIn] |
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| | Lipscomb, John D. [VerfasserIn] |
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| | Kern, Jan [VerfasserIn] |
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| | Högbom, Martin [VerfasserIn] |
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| Titel: | High-resolution XFEL structure of the soluble methane monooxygenase hydroxylase complex with its regulatory component at ambient temperature in two oxidation states |
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| Verf.angabe: | Vivek Srinivas, Rahul Banerjee, Hugo Lebrette, Jason C. Jones, Oskar Aurelius, In-Sik Kim, Cindy C. Pham, Sheraz Gul, Kyle D. Sutherlin, Asmit Bhowmick, Juliane John, Esra Bozkurt, Thomas Fransson, Pierre Aller, Agata Butryn, Isabel Bogacz, Philipp Simon, Stephen Keable, Alexander Britz, Kensuke Tono, Kyung Sook Kim, Sang-Youn Park, Sang Jae Lee, Jaehyun Park, Roberto Alonso-Mori, Franklin D. Fuller, Alexander Batyuk, Aaron S. Brewster, Uwe Bergmann, Nicholas K. Sauter, Allen M. Orville, Vittal K. Yachandra, Junko Yano, John D. Lipscomb, Jan Kern, and Martin Högbom |
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| E-Jahr: | 2020 |
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| Jahr: | July 20, 2020 |
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| Umfang: | 18 S. |
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| Fussnoten: | Gesehen am 29.10.2020 |
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| Titel Quelle: | Enthalten in: American Chemical SocietyJournal of the American Chemical Society |
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| Ort Quelle: | Washington, DC : American Chemical Society, 1879 |
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| Jahr Quelle: | 2020 |
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| Band/Heft Quelle: | 142(2020), 33, Seite 14249-14266 |
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| ISSN Quelle: | 1520-5126 |
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| Abstract: | 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 cluster in the active site. Structural changes in the hydroxylase component (sMMOH) containing the diiron cluster caused by complex formation with a regulatory component (MMOB) and by iron reduction are important for the regulation of O2 activation and substrate hydroxylation. Structural studies of metalloenzymes using traditional synchrotron-based X-ray crystallography are often complicated by partial X-ray-induced photoreduction of the metal center, thereby obviating determination of the structure of the enzyme in pure oxidation states. Here, microcrystals of the sMMOH:MMOB complex from Methylosinus trichosporium OB3b were serially exposed to X-ray free electron laser (XFEL) pulses, where the ≤35 fs duration of exposure of an individual crystal yields diffraction data before photoreduction-induced structural changes can manifest. Merging diffraction patterns obtained from thousands of crystals generates radiation damage-free, 1.95 Å resolution crystal structures for the fully oxidized and fully reduced states of the sMMOH:MMOB complex for the first time. The results provide new insight into the manner by which the diiron cluster and the active site environment are reorganized by the regulatory protein component in order to enhance the steps of oxygen activation and methane oxidation. This study also emphasizes the value of XFEL and serial femtosecond crystallography (SFX) methods for investigating the structures of metalloenzymes with radiation sensitive metal active sites. |
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| DOI: | doi:10.1021/jacs.0c05613 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1021/jacs.0c05613 |
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| | DOI: https://doi.org/10.1021/jacs.0c05613 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1737366053 |
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| Verknüpfungen: | → Zeitschrift |
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High-resolution XFEL structure of the soluble methane monooxygenase hydroxylase complex with its regulatory component at ambient temperature in two oxidation states / Srinivas, Vivek [VerfasserIn]; July 20, 2020 (Online-Ressource)
