Search

Your search keyword '"von Stetten, David"' showing total 5 results
Start Over Author "von Stetten, David" Journal angewandte chemie international edition
5 results on '"von Stetten, David"'

4. Krypton Derivatization of an O2-Tolerant Membrane-Bound [NiFe] Hydrogenase Reveals a Hydrophobic Tunnel Network for Gas Transport.

Author

Kalms, Jacqueline, Schmidt, Andrea, Frielingsdorf, Stefan, van der Linden, Peter, von Stetten, David, Lenz, Oliver, Carpentier, Philippe, and Scheerer, Patrick

Subjects
METALLOENZYMES, HYDROGENASE, RENEWABLE energy sources, KRYPTON, NOBLE gases
Abstract

[NiFe] hydrogenases are metalloenzymes catalyzing the reversible heterolytic cleavage of hydrogen into protons and electrons. Gas tunnels make the deeply buried active site accessible to substrates and inhibitors. Understanding the architecture and function of the tunnels is pivotal to modulating the feature of O2 tolerance in a subgroup of these [NiFe] hydrogenases, as they are interesting for developments in renewable energy technologies. Here we describe the crystal structure of the O2-tolerant membrane-bound [NiFe] hydrogenase of Ralstonia eutropha (ReMBH), using krypton-pressurized crystals. The positions of the krypton atoms allow a comprehensive description of the tunnel network within the enzyme. A detailed overview of tunnel sizes, lengths, and routes is presented from tunnel calculations. A comparison of the ReMBH tunnel characteristics with crystal structures of other O2-tolerant and O2-sensitive [NiFe] hydrogenases revealed considerable differences in tunnel size and quantity between the two groups, which might be related to the striking feature of O2 tolerance. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

5. Chromophore Heterogeneity and Photoconversion in Phytochrome Crystals and Solution Studied by Resonance Raman Spectroscopy

Author

von Stetten, David, primary, Günther, Mina, additional, Scheerer, Patrick, additional, Murgida, Daniel H., additional, Mroginski, Maria Andrea, additional, Krauß, Norbert, additional, Lamparter, Tilman, additional, Zhang, Junrui, additional, Anstrom, David M., additional, Vierstra, Richard D., additional, Forest, Katrina T., additional, and Hildebrandt, Peter, additional

Published
2008
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results