- EMDB-61019: Subtomogram averaging of the C2S2M2L2-type PSII-LHCII supercomple... -
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基本情報
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データベース: EMDB / ID: EMD-61019
タイトル
Subtomogram averaging of the C2S2M2L2-type PSII-LHCII supercomplex from Chlamydomonas reihardtii
マップデータ
C2S2M2L2-type PSII-LHCII supercomplex from Chlamydomonas reihardtii, 24.2 A. (contour level 1.95 for transmembrane region, 0.3 for extramembrane region)
National Natural Science Foundation of China (NSFC)
32241023 and 92254306
中国
引用
ジャーナル: Nat Commun / 年: 2025 タイトル: MPicker: visualizing and picking membrane proteins for cryo-electron tomography. 著者: Xiaofeng Yan / Shudong Li / Weilin Huang / Hao Wang / Tianfang Zhao / Mingtao Huang / Niyun Zhou / Yuan Shen / Xueming Li / 要旨: Advancements in cryo-electron tomography (cryoET) allow the structure of macromolecules to be determined in situ, which is crucial for studying membrane protein structures and their interactions in ...Advancements in cryo-electron tomography (cryoET) allow the structure of macromolecules to be determined in situ, which is crucial for studying membrane protein structures and their interactions in the cellular environment. However, membranes are often highly curved and have a strong contrast in cryoET tomograms, which masks the signals from membrane proteins. These factors pose difficulties in observing and revealing the structures of membrane proteins in situ. Here, we report a membrane-flattening method and the corresponding software, MPicker, designed for the visualization, localization, and orientation determination of membrane proteins in cryoET tomograms. This method improves the visualization of proteins on and around membranes by generating a flattened tomogram that eliminates membrane curvature and reduces the spatial complexity of membrane protein analysis. In MPicker, we integrated approaches for automated particle picking and coarse alignment of membrane proteins for sub-tomogram averaging. MPicker was tested on tomograms of various cells to evaluate the method for visualizing, picking, and analyzing membrane proteins.
#1: ジャーナル: To Be Published タイトル: MPicker: Visualizing and Picking Membrane Proteins for Cryo-Electron Tomography 著者: Li X / Yan X
ダウンロード / ファイル: emd_61019.map.gz / 形式: CCP4 / 大きさ: 10.5 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
注釈
C2S2M2L2-type PSII-LHCII supercomplex from Chlamydomonas reihardtii, 24.2 A. (contour level 1.95 for transmembrane region, 0.3 for extramembrane region)