A. V. Moiseenko, A. M. Egorov, K. V. Shaitan, O. S. Sokolova
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引用次数: 0
摘要
摘要 本文报告了将 JEOL JEM-2100 分析透射电子显微镜成功升级为低分辨率冷冻电子显微镜的实例，该仪器可用于优化样品制备和评估制备质量。仪器升级后，蛋白质分子重构可达到亚纳米分辨率（8 Å 以内）。讨论了石墨烯和无定形碳基底在防止冷冻样品中蛋白质颗粒优先取向效应方面的作用。
Cryo-Electron Microscopy at the Biological Faculty of Moscow State University
Abstract
The paper reports an example of a successful upgrade of the JEOL JEM-2100 analytical transmission electron microscope to a low-resolution cryo-electron microscope, which can be used to optimize sample preparation and to assess preparation quality. As a result of the instrument upgrade, it is possible to obtain subnanometer resolution of protein molecule reconstructions (within 8 Å). The role of graphene and amorphous carbon substrates in preventing the effect of preferential orientation of protein particles in a frozen sample is discussed.
期刊介绍：
Moscow University Biological Sciences Bulletin is forum for research in all important areas of modern biology. It publishes original work on qualitative, analytical and experimental aspects of research. The scope of articles to be considered includes plant biology, zoology, ecology, evolutionary biology, biophysics, genetics, genomics, proteomics, molecular biology, cell biology, biochemistry, endocrinology, immunology, physiology, pharmacology, neuroscience, gerontology, developmental biology, bioinformatics, bioengineering, virology, and microbiology.
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