- EMDB-2990: Structure of Target Of Rapapmycin Complex 2 (TORC2) from Saccharo... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-2990
タイトル
Structure of Target Of Rapapmycin Complex 2 (TORC2) from Saccharomyces cerevisiae
マップデータ
Reconstruction of yeast TORC2 - filtered at 26 Angstroms resolution (FSC 0.143 criterion after gold standard refinement). Contour level provided by author - The map was generated from negative stain data, and we determined the correct contour level to display the map to be 2.9 in Pymol.
試料
試料: Yeast Target of Rapamycin Complex 2
タンパク質・ペプチド: Yeast TORC2
キーワード
TOR kinase complex / TORC2 / cell growth / rapamycin
ジャーナル: Mol Cell / 年: 2015 タイトル: Molecular Basis of the Rapamycin Insensitivity of Target Of Rapamycin Complex 2. 著者: Christl Gaubitz / Taiana M Oliveira / Manoel Prouteau / Alexander Leitner / Manikandan Karuppasamy / Georgia Konstantinidou / Delphine Rispal / Sandra Eltschinger / Graham C Robinson / ...著者: Christl Gaubitz / Taiana M Oliveira / Manoel Prouteau / Alexander Leitner / Manikandan Karuppasamy / Georgia Konstantinidou / Delphine Rispal / Sandra Eltschinger / Graham C Robinson / Stéphane Thore / Ruedi Aebersold / Christiane Schaffitzel / Robbie Loewith / 要旨: Target of Rapamycin (TOR) plays central roles in the regulation of eukaryote growth as the hub of two essential multiprotein complexes: TORC1, which is rapamycin-sensitive, and the lesser ...Target of Rapamycin (TOR) plays central roles in the regulation of eukaryote growth as the hub of two essential multiprotein complexes: TORC1, which is rapamycin-sensitive, and the lesser characterized TORC2, which is not. TORC2 is a key regulator of lipid biosynthesis and Akt-mediated survival signaling. In spite of its importance, its structure and the molecular basis of its rapamycin insensitivity are unknown. Using crosslinking-mass spectrometry and electron microscopy, we determined the architecture of TORC2. TORC2 displays a rhomboid shape with pseudo-2-fold symmetry and a prominent central cavity. Our data indicate that the C-terminal part of Avo3, a subunit unique to TORC2, is close to the FKBP12-rapamycin-binding domain of Tor2. Removal of this sequence generated a FKBP12-rapamycin-sensitive TORC2 variant, which provides a powerful tool for deciphering TORC2 function in vivo. Using this variant, we demonstrate a role for TORC2 in G2/M cell-cycle progression.
ダウンロード / ファイル: emd_2990.map.gz / 形式: CCP4 / 大きさ: 3.7 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
注釈
Reconstruction of yeast TORC2 - filtered at 26 Angstroms resolution (FSC 0.143 criterion after gold standard refinement). Contour level provided by author - The map was generated from negative stain data, and we determined the correct contour level to display the map to be 2.9 in Pymol.
照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 倍率(公称値): 26000
試料ステージ
試料ホルダーモデル: SIDE ENTRY, EUCENTRIC / Tilt angle max: 45
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画像解析
詳細
A total of 8,762 RCT pairs were picked manually with tiltpicker (Voss et al, 2009). The additional untilted particles were picked with e2boxer.py (Ludtke, 2010). The 3D reconstruction was calculated with the Xmipp ML tomo and refined with Xmipp MLF 3D (Scheres et al., 2008)
CTF補正
詳細: each micrograph
最終 再構成
想定した対称性 - 点群: C1 (非対称) / アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 26.0 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: Xmipp, Relion / 使用した粒子像数: 24979