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Publication Abstract from PubMed

Recent developments of novel electron diffraction techniques have shown to be powerful for determination of atomic resolution structures from micron- and nano-sized crystals, too small to be studied by single-crystal X-ray diffraction. In this work, the structure of a rare lysozyme polymorph is solved and refined using continuous rotation MicroED data and standard X-ray crystallographic software. Data collection was performed on a standard 200 kV transmission electron microscope (TEM) using a highly sensitive detector with a short readout time. The data collection is fast ( approximately 3 min per crystal), allowing multiple datasets to be rapidly collected from a large number of crystals. We show that merging data from 33 crystals significantly improves not only the data completeness, overall I/sigma and the data redundancy, but also the quality of the final atomic model. This is extremely useful for electron beam-sensitive crystals of low symmetry or with a preferred orientation on the TEM grid.

A Rare Lysozyme Crystal Form Solved Using Highly Redundant Multiple Electron Diffraction Datasets from Micron-Sized Crystals.,Xu H, Lebrette H, Yang T, Srinivas V, Hovmoller S, Hogbom M, Zou X Structure. 2018 Mar 1. pii: S0969-2126(18)30055-8. doi:, 10.1016/j.str.2018.02.015. PMID:29551291^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.