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基本情報
登録情報 | データベース: PDB / ID: 5fki | ||||||
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タイトル | Pseudorabies virus (PrV) nuclear egress complex proteins fitted as a hexameric lattice into a sub-tomogram average derived from focused- ion beam milled lamellae electron cryo-microscopic data | ||||||
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![]() | VIRAL PROTEIN / Alpha-Herpesvirinae / herpesvirus simplex / HSV-1 / Pseudorabies virus / PRV / Nuclear egress complex / nuclear envelope / nucleoplasmic reticulum / inner nuclear membrane / vesicle transport / nucleo-cytoplasmic transport / RYOFIB / Focused ion beam milling / FIB-SEM | ||||||
機能・相同性 | ![]() host cell nuclear inner membrane / viral budding from nuclear membrane / membrane / metal ion binding 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() | ||||||
手法 | 電子顕微鏡法 / 電子線トモグラフィー法 / 解像度: 35 Å | ||||||
![]() | Hagen, C. / Dent, K.C. / Zeev Ben Mordehai, T. / Vasishtan, D. / Antonin, W. / Mettenleiter, T.C. / Gruenewald, K. | ||||||
![]() | ![]() タイトル: Crystal Structure of the Herpesvirus Nuclear Egress Complex Provides Insights into Inner Nuclear Membrane Remodeling. 著者: Tzviya Zeev-Ben-Mordehai / Marion Weberruß / Michael Lorenz / Juliana Cheleski / Teresa Hellberg / Cathy Whittle / Kamel El Omari / Daven Vasishtan / Kyle C Dent / Karl Harlos / Kati Franzke ...著者: Tzviya Zeev-Ben-Mordehai / Marion Weberruß / Michael Lorenz / Juliana Cheleski / Teresa Hellberg / Cathy Whittle / Kamel El Omari / Daven Vasishtan / Kyle C Dent / Karl Harlos / Kati Franzke / Christoph Hagen / Barbara G Klupp / Wolfram Antonin / Thomas C Mettenleiter / Kay Grünewald / ![]() ![]() 要旨: Although nucleo-cytoplasmic transport is typically mediated through nuclear pore complexes, herpesvirus capsids exit the nucleus via a unique vesicular pathway. Together, the conserved herpesvirus ...Although nucleo-cytoplasmic transport is typically mediated through nuclear pore complexes, herpesvirus capsids exit the nucleus via a unique vesicular pathway. Together, the conserved herpesvirus proteins pUL31 and pUL34 form the heterodimeric nuclear egress complex (NEC), which, in turn, mediates the formation of tight-fitting membrane vesicles around capsids at the inner nuclear membrane. Here, we present the crystal structure of the pseudorabies virus NEC. The structure revealed that a zinc finger motif in pUL31 and an extensive interaction network between the two proteins stabilize the complex. Comprehensive mutational analyses, characterized both in situ and in vitro, indicated that the interaction network is not redundant but rather complementary. Fitting of the NEC crystal structure into the recently determined cryoEM-derived hexagonal lattice, formed in situ by pUL31 and pUL34, provided details on the molecular basis of NEC coat formation and inner nuclear membrane remodeling. | ||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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-検証レポート
文書・要旨 | ![]() | 1.3 MB | 表示 | ![]() |
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-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 28235.549 Da / 分子数: 42 / 由来タイプ: 組換発現 詳細: Two proteins (PUL31 AND PUL34) of pseudorabies virus (PRV) are co-expressed in the cells forming there the herpesviral nuclear egress complex lining as a coat perinuclear vesicles. 由来: (組換発現) ![]() ![]() 遺伝子: UL31 / プラスミド: pETDUET / 発現宿主: ![]() ![]() #2: タンパク質 | 分子量: 20287.975 Da / 分子数: 42 / 由来タイプ: 組換発現 詳細: Two proteins (PUL31 AND PUL34) of pseudorabies virus (PRV) are co-expressed in the cells forming there the herpesviral nuclear egress complex lining as a coat perinuclear vesicles. 由来: (組換発現) ![]() ![]() 遺伝子: UL34 / プラスミド: pETDUET / 発現宿主: ![]() ![]() #3: 化合物 | ChemComp-ZN / #4: 化合物 | ChemComp-CL / |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: CELL / 3次元再構成法: 電子線トモグラフィー法 |
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試料調製
構成要素 | 名称: PORCINE EPITHELIAL-LIKE EMBRYONIC EFN-R KIDNEY CELLS STABLY CO- EXPRESSING PRV UL31 AND UL34, THE LATTER FUSED WITH GFP (CELL LINE DESIGNATED AS BK-EF-UL31- 34GFP CATALOGUE NO. RIE 1083 OF ...名称: PORCINE EPITHELIAL-LIKE EMBRYONIC EFN-R KIDNEY CELLS STABLY CO- EXPRESSING PRV UL31 AND UL34, THE LATTER FUSED WITH GFP (CELL LINE DESIGNATED AS BK-EF-UL31- 34GFP CATALOGUE NO. RIE 1083 OF THE COLLECTION OF CELL LINES IN VETERINARY MEDICINE AT THE FLI, GREIFSWALD-INSEL RIEMS, GERMANY) タイプ: CELL |
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試料 | 包埋: YES / シャドウイング: NO / 染色: NO / 凍結: NO |
試料支持 | 詳細: OTHER |
急速凍結 | 装置: HOMEMADE PLUNGER / 凍結剤: ETHANE-PROPANE 詳細: VITRIFICATION 1 -- CRYOGEN- ETHANE-PROPANE MIXTURE, INSTRUMENT- HOMEMADE PLUNGER, METHOD- BLOTTED MANUALLY WITH A BENT STRIP OF WHATMAN NO. 1 FILTER PAPER FROM THE NON-COATED GRID SIDE FOR 2 ...詳細: VITRIFICATION 1 -- CRYOGEN- ETHANE-PROPANE MIXTURE, INSTRUMENT- HOMEMADE PLUNGER, METHOD- BLOTTED MANUALLY WITH A BENT STRIP OF WHATMAN NO. 1 FILTER PAPER FROM THE NON-COATED GRID SIDE FOR 2 TO 3 S IMMEDIATELY BEFORE VITRIFICATION BY THE GRAVITY-DRIVEN PLUNGING APPARATUS IN A ETHANE-PROPANE MIXTURE COOLED BY LIQUID NITROGEN, TIMERESOLVEDSTATE- TWO DAYS OF INCUBATION (37 DEGREE C, 5 PERCENT CO2) IN PLASTIC MICROSCOPE SLIDE GROWTH CHAMBERS (MUE-SLIDE 2X9 WELL, IBIDI GMBH) BEFORE CRYO- IMMOBILIZATION, |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Tecnai Polara / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI POLARA 300 / 日付: 2013年4月26日 / 詳細: 2048 X 2048 |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 22500 X / 倍率(補正後): 52650 X / 最大 デフォーカス(公称値): 6000 nm / 最小 デフォーカス(公称値): -6000 nm / Cs: 2 mm |
試料ホルダ | 傾斜角・最大: 52 ° / 傾斜角・最小: -50 ° |
撮影 | 電子線照射量: 114 e/Å2 / フィルム・検出器のモデル: GATAN MULTISCAN |
画像スキャン | デジタル画像の数: 35 |
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解析
EMソフトウェア |
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対称性 | 点対称性: C6 (6回回転対称) | ||||||||||||
3次元再構成 | 手法: WEIGHTED BACK PROJECTION / 解像度: 35 Å / 粒子像の数: 300 / ピクセルサイズ(実測値): 11.4 Å 詳細: FIT OF HEXAMERIC LATTICE OF NEC INTO SUBTOMOGRAM AVERAGE. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3197. 対称性のタイプ: POINT | ||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL Target criteria: MINIMISATION OF ATOMIC CLASHES AND PROTRUSION FROM MAP 詳細: METHOD--RIGID BODY REFINEMENT PROTOCOL--X-RAY | ||||||||||||
原子モデル構築 | PDB-ID: 5E8C | ||||||||||||
精密化 | 最高解像度: 35 Å | ||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 35 Å
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