National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R35GM122510
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
K99GM138756
米国
引用
ジャーナル: Chem Rev / 年: 2022 タイトル: Cryo-EM of Helical Polymers. 著者: Fengbin Wang / Ordy Gnewou / Armin Solemanifar / Vincent P Conticello / Edward H Egelman / 要旨: While the application of cryogenic electron microscopy (cryo-EM) to helical polymers in biology has a long history, due to the huge number of helical macromolecular assemblies in viruses, bacteria, ...While the application of cryogenic electron microscopy (cryo-EM) to helical polymers in biology has a long history, due to the huge number of helical macromolecular assemblies in viruses, bacteria, archaea, and eukaryotes, the use of cryo-EM to study synthetic soft matter noncovalent polymers has been much more limited. This has mainly been due to the lack of familiarity with cryo-EM in the materials science and chemistry communities, in contrast to the fact that cryo-EM was developed as a biological technique. Nevertheless, the relatively few structures of self-assembled peptide nanotubes and ribbons solved at near-atomic resolution by cryo-EM have demonstrated that cryo-EM should be the method of choice for a structural analysis of synthetic helical filaments. In addition, cryo-EM has also demonstrated that the self-assembly of soft matter polymers has enormous potential for polymorphism, something that may be obscured by techniques such as scattering and spectroscopy. These cryo-EM structures have revealed how far we currently are from being able to predict the structure of these polymers due to their chaotic self-assembly behavior.