Femtosecond X-ray emission study of the spin cross-over dynamics in haem proteins

Femtosecond X-ray emission study of the spin cross-over dynamics in haem proteins

The change from low-spin hexacoordinated to high-spin pentacoordinated domed form in heam upon ligand detachment and the reverse process underlie the respiratory function. The authors, using femtosecond time-resolved X-ray emission spectroscopy, capture the transient states connecting the two forms...

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Auteurs principaux: Dominik Kinschel, Camila Bacellar, Oliviero Cannelli, Boris Sorokin, Tetsuo Katayama, Giulia F. Mancini, Jérémy R. Rouxel, Yuki Obara, Junichi Nishitani, Hironori Ito, Terumasa Ito, Naoya Kurahashi, Chika Higashimura, Shotaro Kudo, Theo Keane, Frederico A. Lima, Wojciech Gawelda, Peter Zalden, Sebastian Schulz, James M. Budarz, Dmitry Khakhulin, Andreas Galler, Christian Bressler, Christopher J. Milne, Thomas Penfold, Makina Yabashi, Toshinori Suzuki, Kazuhiko Misawa, Majed Chergui
Format: article
Langue:EN
Publié: Nature Portfolio 2020
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Science
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Accès en ligne:https://doaj.org/article/01afb0e1ec7b4550a3f7a34f90c4df4e
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Résumé:The change from low-spin hexacoordinated to high-spin pentacoordinated domed form in heam upon ligand detachment and the reverse process underlie the respiratory function. The authors, using femtosecond time-resolved X-ray emission spectroscopy, capture the transient states connecting the two forms in myoglobin-NO upon NO photoinduced detachment.

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