National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
GM123159
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
GM124149
米国
National Science Foundation (NSF, United States)
STC-1231306
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
GM117126
米国
引用
ジャーナル: IUCrJ / 年: 2020 タイトル: Comparing serial X-ray crystallography and microcrystal electron diffraction (MicroED) as methods for routine structure determination from small macromolecular crystals. 著者: Alexander M Wolff / Iris D Young / Raymond G Sierra / Aaron S Brewster / Michael W Martynowycz / Eriko Nango / Michihiro Sugahara / Takanori Nakane / Kazutaka Ito / Andrew Aquila / Asmit ...著者: Alexander M Wolff / Iris D Young / Raymond G Sierra / Aaron S Brewster / Michael W Martynowycz / Eriko Nango / Michihiro Sugahara / Takanori Nakane / Kazutaka Ito / Andrew Aquila / Asmit Bhowmick / Justin T Biel / Sergio Carbajo / Aina E Cohen / Saul Cortez / Ana Gonzalez / Tomoya Hino / Dohyun Im / Jake D Koralek / Minoru Kubo / Tomas S Lazarou / Takashi Nomura / Shigeki Owada / Avi J Samelson / Tomoyuki Tanaka / Rie Tanaka / Erin M Thompson / Henry van den Bedem / Rahel A Woldeyes / Fumiaki Yumoto / Wei Zhao / Kensuke Tono / Sebastien Boutet / So Iwata / Tamir Gonen / Nicholas K Sauter / James S Fraser / Michael C Thompson / 要旨: Innovative new crystallographic methods are facilitating structural studies from ever smaller crystals of biological macromolecules. In particular, serial X-ray crystallography and microcrystal ...Innovative new crystallographic methods are facilitating structural studies from ever smaller crystals of biological macromolecules. In particular, serial X-ray crystallography and microcrystal electron diffraction (MicroED) have emerged as useful methods for obtaining structural information from crystals on the nanometre to micrometre scale. Despite the utility of these methods, their implementation can often be difficult, as they present many challenges that are not encountered in traditional macromolecular crystallography experiments. Here, XFEL serial crystallography experiments and MicroED experiments using batch-grown microcrystals of the enzyme cyclophilin A are described. The results provide a roadmap for researchers hoping to design macromolecular microcrystallography experiments, and they highlight the strengths and weaknesses of the two methods. Specifically, we focus on how the different physical conditions imposed by the sample-preparation and delivery methods required for each type of experiment affect the crystal structure of the enzyme.
詳細: 600 uL of protein at 60 mg/mL was combined with 400 uL of 50 percent PEG 3350 in a glass vial and stirred with an Octagon stir bar at 500 RPM Lipid mixture: NA / 温度: 296 K
緩衝液
pH: 7.5
試料
包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES
試料支持
詳細: unspecified
急速凍結
凍結剤: ETHANE
結晶
マシュー密度: 2.75 Å3/Da / 溶媒含有率: 55.34 %
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データ収集
実験機器
モデル: Talos Arctica / 画像提供: FEI Company
顕微鏡
モデル: FEI TALOS ARCTICA
電子銃
電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: OTHER