Wirtschaftsstrafrecht

Brettel, Hauke; Schneider, Hendrik

doi:10.5771/9783845273273

Cited by 2 publications

(1 citation statement)

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“…The intermediate W + is detected at wavelengths mainly shorter than 700 nm. 44 Possible hot ground states of FMNH˙ † is detected at as longer as 670 nm and portrayed a red shifted FMNH˙ absorption spectrum. The ground-state FMNH˙ is dominant at the wavelengths less than 640 nm.…”

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confidence: 97%

Short-Range Electron Transfer in Reduced Flavodoxin: Ultrafast Nonequilibrium Dynamics Coupled with Protein Fluctuations

Kundu

et al. 2018

J. Phys. Chem. Lett.

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Short-range electron transfer (ET) in proteins is an ultrafast process on the similar time scales as local protein-solvent fluctuation, and thus the two dynamics are coupled. Here we use semiquinone flavodoxin and systematically characterized the photoinduced redox cycle with 11 mutations of different aromatic electron donors (tryptophan and tyrosine) and local residues to change redox properties. We observed the forward and backward ET dynamics in a few picoseconds, strongly following a stretched behavior resulting from a coupling between local environment relaxations and these ET processes. We further observed the hot vibrational-state formation through charge recombination and the subsequent cooling dynamics also in a few picoseconds. Combined with the ET studies in oxidized flavodoxin, these results coherently reveal the evolution of the ET dynamics from single to stretched exponential behaviors and thus elucidate critical time scales for the coupling. The observed hot vibration-state formation is robust and should be considered in all photoinduced back ET processes in flavoproteins.

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confidence: 97%