ジャーナル: Nat Methods / 年: 2024 タイトル: Serialized on-grid lift-in sectioning for tomography (SOLIST) enables a biopsy at the nanoscale. 著者: Ho Thuy Dung Nguyen / Gaia Perone / Nikolai Klena / Roberta Vazzana / Flaminia Kaluthantrige Don / Malan Silva / Simona Sorrentino / Paolo Swuec / Frederic Leroux / Nereo Kalebic / Francesca ...著者: Ho Thuy Dung Nguyen / Gaia Perone / Nikolai Klena / Roberta Vazzana / Flaminia Kaluthantrige Don / Malan Silva / Simona Sorrentino / Paolo Swuec / Frederic Leroux / Nereo Kalebic / Francesca Coscia / Philipp S Erdmann / 要旨: Cryo-focused ion beam milling has substantially advanced our understanding of molecular processes by opening windows into cells. However, applying this technique to complex samples, such as tissues, ...Cryo-focused ion beam milling has substantially advanced our understanding of molecular processes by opening windows into cells. However, applying this technique to complex samples, such as tissues, has presented considerable technical challenges. Here we introduce an innovative adaptation of the cryo-lift-out technique, serialized on-grid lift-in sectioning for tomography (SOLIST), addressing these limitations. SOLIST enhances throughput, minimizes ice contamination and improves sample stability for cryo-electron tomography. It thereby facilitates the high-resolution imaging of a wide range of specimens. We illustrate these advantages on reconstituted liquid-liquid phase-separated droplets, brain organoids and native tissues from the mouse brain, liver and heart. With SOLIST, cellular processes can now be investigated at molecular resolution directly in native tissue. Furthermore, our method has a throughput high enough to render cryo-lift-out a competitive tool for structural biology. This opens new avenues for unprecedented insights into cellular function and structure in health and disease, a 'biopsy at the nanoscale'.
超分子 #1: S. cerevisiae ribosome from SOLIST lamellas
超分子
名称: S. cerevisiae ribosome from SOLIST lamellas / タイプ: cell / ID: 1 / 親要素: 0
由来(天然)
生物種: Saccharomyces cerevisiae (パン酵母) / 株: S288C
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実験情報
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構造解析
解析
サブトモグラム平均法
試料の集合状態
cell
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試料調製
緩衝液
pH: 7.5
グリッド
モデル: UltrAuFoil R2/2 / 材質: GOLD / メッシュ: 200 / 前処理 - タイプ: GLOW DISCHARGE 詳細: glow-discharged at 30 mA for 30 s (GloQube Plus Glow discharge system, Quorum Technologies)
詳細
SOLIST lamella preparation of yeast from HPF.
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電子顕微鏡法
顕微鏡
TFS KRIOS
特殊光学系
エネルギーフィルター - 名称: TFS Selectris X / エネルギーフィルター - スリット幅: 10 eV