- EMDB-5151: Negative-stain 3D EM structure of the budding yeast Nup84 complex... -
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基本情報
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データベース: EMDB / ID: EMD-5151
タイトル
Negative-stain 3D EM structure of the budding yeast Nup84 complex, straight-stem conformation.
マップデータ
Map of yeast Nup84 complex, "straight-stem" conformation
試料
試料: Nup84 complex isolated from budding yeast. This heptameric complex contains one copy each of Nup133, Nup84, Nup145C, Sec13, Nup85, Seh1 and Nup120.
ジャーナル: Nat Struct Mol Biol / 年: 2009 タイトル: Three-dimensional structure and flexibility of a membrane-coating module of the nuclear pore complex. 著者: Martin Kampmann / Günter Blobel / 要旨: The nuclear pore complex mediates nucleocytoplasmic transport in all eukaryotes and is among the largest cellular assemblies of proteins, collectively known as nucleoporins. Nucleoporins are ...The nuclear pore complex mediates nucleocytoplasmic transport in all eukaryotes and is among the largest cellular assemblies of proteins, collectively known as nucleoporins. Nucleoporins are organized into distinct subcomplexes. We optimized the isolation of a putative membrane-coating subcomplex of the nuclear pore complex, the heptameric Nup84 complex, and analyzed its structure by EM. Our data confirmed the previously reported 'Y' shape. We discerned additional structural details, including specific hinge regions at which the particle shows great flexibility. We determined the three-dimensional structures of two conformers, mapped the localization of two nucleoporins within the subcomplex and docked known crystal structures into the EM maps. The free ends of the Y-shaped particle are formed by beta-propellers; the connecting segments consist of alpha-solenoids. Notably, the same organizational principle is found in the clathrin triskelion, which may share a common evolutionary origin with the heptameric complex.
全体 : Nup84 complex isolated from budding yeast. This heptameric comple...
全体
名称: Nup84 complex isolated from budding yeast. This heptameric complex contains one copy each of Nup133, Nup84, Nup145C, Sec13, Nup85, Seh1 and Nup120.
要素
試料: Nup84 complex isolated from budding yeast. This heptameric complex contains one copy each of Nup133, Nup84, Nup145C, Sec13, Nup85, Seh1 and Nup120.
タンパク質・ペプチド: Nup84 complex
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超分子 #1000: Nup84 complex isolated from budding yeast. This heptameric comple...
超分子
名称: Nup84 complex isolated from budding yeast. This heptameric complex contains one copy each of Nup133, Nup84, Nup145C, Sec13, Nup85, Seh1 and Nup120. タイプ: sample / ID: 1000 / 集合状態: heptamer / Number unique components: 1