Publication: Broad-Band Ultraviolet CD Spectroscopy of Ultrafast Peptide Backbone Conformational Dynamics
Broad-Band Ultraviolet CD Spectroscopy of Ultrafast Peptide Backbone Conformational Dynamics
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Oppermann, M., Spekowius, J., Bauer, B., Pfister, R., Chergui, M., & Helbing, J. (2019). Broad-Band Ultraviolet CD Spectroscopy of Ultrafast Peptide Backbone Conformational Dynamics. Journal of Physical Chemistry Letters, 10(11), 2700–2705. https://doi.org/10.1021/acs.jpclett.9b01253
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The far-UV spectral window widely used for the conformational analysis of biomolecules is not easily covered with broad-band lasers. This has made it difficult to use circular dichroism (CD) spectroscopy to directly follow fast structure changes. By combining transient CD spectroscopy in the deep-UV with thioamide substitution, we demonstrate a method to overcome this difficulty. We investigated a dipeptide whose two carbonyl oxygen atoms were replaced by sulfur, red-shifting the strong lowest-lying ππ* transitions into the more acces
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- Oppermann, Malte
- Spekowius, Jasmin
- Bauer, Benjamin
- Pfister, Rolf
- Chergui, Majed
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Oppermann, M., Spekowius, J., Bauer, B., Pfister, R., Chergui, M., & Helbing, J. (2019). Broad-Band Ultraviolet CD Spectroscopy of Ultrafast Peptide Backbone Conformational Dynamics. Journal of Physical Chemistry Letters, 10(11), 2700–2705. https://doi.org/10.1021/acs.jpclett.9b01253
