- EMDB-51653: Subtomogram average of S. pombe 80S ribosomes from DEF tomograms ... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-51653
タイトル
Subtomogram average of S. pombe 80S ribosomes from DEF tomograms acquired on cryo-FIB-lamellae based on Template Learning additional annotations non-overlapping with previous expert-validated annotations
マップデータ
Subtomogram average of additional positive annotations from Template Learning that are missed by previous expert-validations
ジャーナル: Nat Commun / 年: 2025 タイトル: Template Learning: Deep learning with domain randomization for particle picking in cryo-electron tomography. 著者: Mohamad Harastani / Gurudatt Patra / Charles Kervrann / Mikhail Eltsov / 要旨: Cryo-electron tomography (cryo-ET) enables three-dimensional visualization of biomolecules and cellular components in their near-native state. A key challenge in cryo-ET data analysis is particle ...Cryo-electron tomography (cryo-ET) enables three-dimensional visualization of biomolecules and cellular components in their near-native state. A key challenge in cryo-ET data analysis is particle picking, often performed by template matching, which relies on cross-correlating tomograms with known structural templates. Current deep learning-based methods improve accuracy but require labor-intensive annotated datasets for supervised training. Here, we present Template Learning, a technique that combines deep learning accuracy with the convenience of training on biomolecular templates via domain randomization. Template Learning automates synthetic dataset generation, modeling molecular crowding, structural variability, and data acquisition variation, thereby reducing or eliminating the need for annotated experimental data. We show that models trained using Template Learning, and optionally fine-tuned with experimental data, outperform those trained solely on annotations. Furthermore, Template Learning provides higher precision and more uniform orientation detection than template matching, particularly for small non-spherical particles. Template Learning software is open-source, Python-based, and GPU/CPU parallelized.
名称: S. pombe cells / タイプ: organelle_or_cellular_component / ID: 1 / 親要素: 0 詳細: This STA experiment used previously published cryo-ET data deposited in EMPIAR under entry number EMPIAR-10988 (original citation: https://doi.org/10.1038/s41592-022-01746-2). No sample ...詳細: This STA experiment used previously published cryo-ET data deposited in EMPIAR under entry number EMPIAR-10988 (original citation: https://doi.org/10.1038/s41592-022-01746-2). No sample preparation or data collection was performed by the authors.
由来(天然)
生物種: Schizosaccharomyces pombe (分裂酵母)
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実験情報
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構造解析
手法
クライオ電子顕微鏡法
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
凍結
凍結剤: ETHANE
詳細
This STA experiment used previously published cryo-ET data deposited in EMPIAR under entry number EMPIAR-10988 (original citation: https://doi.org/10.1038/s41592-022-01746-2). No sample preparation or data collection was performed by the authors.
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電子顕微鏡法
顕微鏡
TFS KRIOS
詳細
This STA experiment used previously published cryo-ET data deposited in EMPIAR under entry number EMPIAR-10988 (original citation: https://doi.org/10.1038/s41592-022-01746-2). No sample preparation or data collection was performed by the authors.
撮影
フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 3.0 e/Å2
電子線
加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN
電子光学系
照射モード: OTHER / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 4.5 µm / 最小 デフォーカス(公称値): 1.5 µm