Article
Transient IR spectroscopy identifies key interactions and unravels new intermediates in the photocycle of a bacterial phytochrome.
Physical chemistry chemical physics : PCCP - 7 May 2020
Kübel Joachim, Chenchiliyan Manoop, Ooi Saik Ann, Gustavsson Emil, Isaksson Linnéa, Kuznetsova Valentyna, Ihalainen Janne A, Westenhoff Sebastian, Maj Michał
Abstract excerpt
Phytochromes are photosensory proteins in plants, fungi, and bacteria, which detect red- and far-red light. They undergo a transition between the resting (Pr) and photoactivated (Pfr) states. In bacterial phytochromes, the Pr-to-Pfr transition is facilitated by two intermediate states, called Lumi-R and Meta-R. The molecular structures of the protein in these states are not known and the molecular mechanism of...
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