Femtosecond X-ray spectroscopy of haem proteins

Camila Bacellar; Dominik Kinschel; Oliviero Cannelli; Boris Sorokin; Tetsuo Katayama; Giulia F. Mancini; Jeremy R. Rouxel; Yuki Obara; Junichi Nishitani; Hironori Ito; Terumasa Ito; Naoya Kurahashi; Chika Higashimura; Shotaro Kudo; Claudio Cirelli; Gregor Knopp; Karol Nass; Philip J. M. Johnson; Anna Wach; Jakub Szlachetko; Frederico A. Lima; Christopher J. Milne; Makina Yabashi; Toshinori Suzuki; Kazuhiko Misawa; Majed Chergui

doi:10.1039/D0FD00131G

Femtosecond X-ray spectroscopy of haem proteins

Camila Bacellar,

^a Dominik Kinschel,^a Oliviero Cannelli,

^a Boris Sorokin,^a Tetsuo Katayama,^b Giulia F. Mancini,

^a Jeremy R. Rouxel,

^a Yuki Obara,^c Junichi Nishitani,^d Hironori Ito,^c Terumasa Ito,^c Naoya Kurahashi,^e Chika Higashimura,^d Shotaro Kudo,^d Claudio Cirelli,^f Gregor Knopp,^f Karol Nass,

^f Philip J. M. Johnson,^f Anna Wach,

^g Jakub Szlachetko,

^g Frederico A. Lima,

^h Christopher J. Milne,^f Makina Yabashi,^b Toshinori Suzuki,^d Kazuhiko Misawa^c and Majed Chergui

*^a

Author affiliations

* Corresponding authors

^a Laboratoire de Spectroscopie Ultrarapide (LSU), Lausanne Centre for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
E-mail: majed.chergui@epfl.ch

^b Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1, Kouto, Sayo-cho Sayo-gun, Hyogo, Japan

^c Tokyo University of Agriculture and Technology (TUAT), 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan

^d Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-Ku, Kyoto 606-8502, Japan

^e Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Kioicho, 7-1, Chiyoda, 102-8554 Tokyo, Japan

^f SwissFEL, Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland

^g Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow, Poland

^h European XFEL, Holzkoppel 4, Schenefeld, Germany

Abstract

We discuss our recently reported femtosecond (fs) X-ray emission spectroscopy results on the ligand dissociation and recombination in nitrosylmyoglobin (MbNO) in the context of previous studies on ferrous haem proteins. We also present a preliminary account of femtosecond X-ray absorption studies on MbNO, pointing to the presence of more than one species formed upon photolysis.

This article is part of the themed collection: Time resolved imaging of photo-induced dynamics

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Femtosecond X-ray spectroscopy of haem proteins

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