Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 109, Issue 13, Pages 4863-4868Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1116478109
Keywords
cellular envelope; Escherichia coli; lipoprotein; PagL; magic angle spinning
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Funding
- Nederlandse organisatie voor wetenschappelijk onderzoek [700.26.121, 700.10.433, 815.02.012]
- European Community [211800]
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Decrypting the structure, function, and molecular interactions of complex molecular machines in their cellular context and at atomic resolution is of prime importance for understanding fundamental physiological processes. Nuclear magnetic resonance is a well-established imaging method that can visualize cellular entities at the micrometer scale and can be used to obtain 3D atomic structures under in vitro conditions. Here, we introduce a solid-state NMR approach that provides atomic level insights into cell-associated molecular components. By combining dedicated protein production and labeling schemes with tailored solid-state NMR pulse methods, we obtained structural information of a recombinant integral membrane protein and the major endogenous molecular components in a bacterial environment. Our approach permits studying entire cellular compartments as well as cell-associated proteins at the same time and at atomic resolution.
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