期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 56, 期 11, 页码 2846-2860出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201608432
关键词
cryo-EM; drug development; electron microscopy; pharmacological targets; structural biology
资金
- Max Planck Society
- European Council under the European Union [615984]
- European Research Council (ERC) [615984] Funding Source: European Research Council (ERC)
For decades, X-ray crystallography and NMR have been the most important techniques for studying the atomic structure of macromolecules. However, as a result of size, instability, low yield, and other factors, many macromolecules are difficult to crystallize or unsuitable for NMR studies. Electron cryo-microscopy (cryo-EM) does not depend on crystals and has therefore been the method of choice for many macromolecular complexes that cannot be crystallized, but atomic resolution has mostly been beyond its reach. A new generation of detectors that are capable of sensing directly the incident electrons has recently revolutionized the field, with structures of macromolecules now routinely being solved to near-atomic resolution. In this review, we summarize some of the most recent examples of high-resolution cryo-EM structures. We put particular emphasis on proteins with pharmacological relevance that have traditionally been inaccessible to crystallography. Furthermore, we discuss examples where interactions with small molecules have been fully characterized at atomic resolution. Finally, we stress the current limits of cryo-EM, and methodological issues related to its usage as a tool for drug development.
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