Now showing items 1-4 of 4
Dynamic competition between a ligand and transcription factor NusA governs riboswitch-mediated transcription regulation
(2021-10-14)
Co-transcriptional RNA folding is widely assumed to influence the timely control of gene expression, but our understanding remains limited. In bacteria, the fluoride (F-) sensing riboswitch is a transcriptional control ...
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Watching Excited State Dynamics with Optical and X-ray Probes: The Excited State Dynamics of Aquocobalamin and Hydroxocobalamin
(American Chemical Society, 2023-06-16)
Femtosecond time-resolved X-ray absorption (XANES) at the Co K-edge, X-ray emission (XES) in the Co Kβ and valence-to-core regions, and broadband UV–vis transient absorption are combined to probe the femtosecond to picosecond ...
Ultrafast X-ray Absorption Spectroscopy Reveals Excited State Dynamics of B12 Coenzymes Controlled by the Axial Base
(American Chemical Society, 2023-11-23)
Polarized time-resolved X-ray absorption spectroscopy at the Co K-edge is used to probe the excited state dynamics and photolysis of base-off methylcobalamin and the excited state structure of base-off adenosylcobalamin. ...