+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7msw | |||||||||||||||
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タイトル | Full length SARS-CoV-2 Nsp2 | |||||||||||||||
要素 | Non-structural protein 2 | |||||||||||||||
キーワード | VIRAL PROTEIN (ウイルスタンパク質) / Nsp2 / virus infection (ウイルス性疾患) / SARS-CoV-2 (SARSコロナウイルス2) / Orf1a | |||||||||||||||
機能・相同性 | 機能・相同性情報 protein guanylyltransferase activity / RNA endonuclease activity, producing 3'-phosphomonoesters / mRNA guanylyltransferase activity / 5'-3' RNA helicase activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / 付加脱離酵素(リアーゼ); P-Oリアーゼ類; - / Assembly of the SARS-CoV-2 Replication-Transcription Complex (RTC) / Maturation of replicase proteins / ISG15-specific peptidase activity / Transcription of SARS-CoV-2 sgRNAs ...protein guanylyltransferase activity / RNA endonuclease activity, producing 3'-phosphomonoesters / mRNA guanylyltransferase activity / 5'-3' RNA helicase activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / 付加脱離酵素(リアーゼ); P-Oリアーゼ類; - / Assembly of the SARS-CoV-2 Replication-Transcription Complex (RTC) / Maturation of replicase proteins / ISG15-specific peptidase activity / Transcription of SARS-CoV-2 sgRNAs / Translation of Replicase and Assembly of the Replication Transcription Complex / snRNP Assembly / Replication of the SARS-CoV-2 genome / TRAF3-dependent IRF activation pathway / 加水分解酵素; エステル加水分解酵素; 5'-リン酸モノエステル産生エキソリボヌクレアーゼ / : / double membrane vesicle viral factory outer membrane / 3C様プロテアーゼ / host cell endosome / 3'-5'-RNA exonuclease activity / host cell endoplasmic reticulum-Golgi intermediate compartment / symbiont-mediated suppression of host toll-like receptor signaling pathway / symbiont-mediated degradation of host mRNA / mRNA guanylyltransferase / symbiont-mediated suppression of host ISG15-protein conjugation / G-quadruplex RNA binding / SARS-CoV-2 modulates host translation machinery / omega peptidase activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity / mRNA (guanine-N7)-methyltransferase / methyltransferase cap1 / host cell Golgi apparatus / symbiont-mediated perturbation of host ubiquitin-like protein modification / mRNA (nucleoside-2'-O-)-methyltransferase activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / ubiquitinyl hydrolase 1 / ヘリカーゼ / cysteine-type deubiquitinase activity / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; システインプロテアーゼ / single-stranded RNA binding / host cell endoplasmic reticulum membrane / host cell perinuclear region of cytoplasm / viral protein processing / lyase activity / ヘリカーゼ / induction by virus of host autophagy / RNA依存性RNAポリメラーゼ / copper ion binding / symbiont-mediated suppression of host gene expression / viral RNA genome replication / cysteine-type endopeptidase activity / RNA-dependent RNA polymerase activity / DNA-templated transcription / lipid binding / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / host cell nucleus / SARS-CoV-2 activates/modulates innate and adaptive immune responses / ATP hydrolysis activity / タンパク質分解 / RNA binding / zinc ion binding / ATP binding / 生体膜 / identical protein binding 類似検索 - 分子機能 | |||||||||||||||
生物種 | Severe acute respiratory syndrome coronavirus 2 (SARSコロナウイルス2) | |||||||||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.76 Å | |||||||||||||||
データ登録者 | QCRG Structural Biology Consortium | |||||||||||||||
資金援助 | 米国, 4件
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引用 | ジャーナル: bioRxiv / 年: 2021 タイトル: CryoEM and AI reveal a structure of SARS-CoV-2 Nsp2, a multifunctional protein involved in key host processes. 著者: Meghna Gupta / Caleigh M Azumaya / Michelle Moritz / Sergei Pourmal / Amy Diallo / Gregory E Merz / Gwendolyn Jang / Mehdi Bouhaddou / Andrea Fossati / Axel F Brilot / Devan Diwanji / Evelyn ...著者: Meghna Gupta / Caleigh M Azumaya / Michelle Moritz / Sergei Pourmal / Amy Diallo / Gregory E Merz / Gwendolyn Jang / Mehdi Bouhaddou / Andrea Fossati / Axel F Brilot / Devan Diwanji / Evelyn Hernandez / Nadia Herrera / Huong T Kratochvil / Victor L Lam / Fei Li / Yang Li / Henry C Nguyen / Carlos Nowotny / Tristan W Owens / Jessica K Peters / Alexandrea N Rizo / Ursula Schulze-Gahmen / Amber M Smith / Iris D Young / Zanlin Yu / Daniel Asarnow / Christian Billesbølle / Melody G Campbell / Jen Chen / Kuei-Ho Chen / Un Seng Chio / Miles Sasha Dickinson / Loan Doan / Mingliang Jin / Kate Kim / Junrui Li / Yen-Li Li / Edmond Linossi / Yanxin Liu / Megan Lo / Jocelyne Lopez / Kyle E Lopez / Adamo Mancino / Frank R Moss / Michael D Paul / Komal Ishwar Pawar / Adrian Pelin / Thomas H Pospiech / Cristina Puchades / Soumya Govinda Remesh / Maliheh Safari / Kaitlin Schaefer / Ming Sun / Mariano C Tabios / Aye C Thwin / Erron W Titus / Raphael Trenker / Eric Tse / Tsz Kin Martin Tsui / Feng Wang / Kaihua Zhang / Yang Zhang / Jianhua Zhao / Fengbo Zhou / Yuan Zhou / Lorena Zuliani-Alvarez / / David A Agard / Yifan Cheng / James S Fraser / Natalia Jura / Tanja Kortemme / Aashish Manglik / Daniel R Southworth / Robert M Stroud / Danielle L Swaney / Nevan J Krogan / Adam Frost / Oren S Rosenberg / Kliment A Verba / 要旨: The SARS-CoV-2 protein Nsp2 has been implicated in a wide range of viral processes, but its exact functions, and the structural basis of those functions, remain unknown. Here, we report an atomic ...The SARS-CoV-2 protein Nsp2 has been implicated in a wide range of viral processes, but its exact functions, and the structural basis of those functions, remain unknown. Here, we report an atomic model for full-length Nsp2 obtained by combining cryo-electron microscopy with deep learning-based structure prediction from AlphaFold2. The resulting structure reveals a highly-conserved zinc ion-binding site, suggesting a role for Nsp2 in RNA binding. Mapping emerging mutations from variants of SARS-CoV-2 on the resulting structure shows potential host-Nsp2 interaction regions. Using structural analysis together with affinity tagged purification mass spectrometry experiments, we identify Nsp2 mutants that are unable to interact with the actin-nucleation-promoting WASH protein complex or with GIGYF2, an inhibitor of translation initiation and modulator of ribosome-associated quality control. Our work suggests a potential role of Nsp2 in linking viral transcription within the viral replication-transcription complexes (RTC) to the translation initiation of the viral message. Collectively, the structure reported here, combined with mutant interaction mapping, provides a foundation for functional studies of this evolutionary conserved coronavirus protein and may assist future drug design. | |||||||||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7msw.cif.gz | 231.9 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7msw.ent.gz | 194.7 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7msw.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ms/7msw ftp://data.pdbj.org/pub/pdb/validation_reports/ms/7msw | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: タンパク質 | 分子量: 70590.219 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Severe acute respiratory syndrome coronavirus 2 (SARSコロナウイルス2) 遺伝子: rep, 1a-1b / 発現宿主: Escherichia coli BL21(DE3) (大腸菌) / 参照: UniProt: P0DTD1 | ||
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#2: 化合物 | 研究の焦点であるリガンドがあるか | N | |
-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: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: SARS-CoV-2 Nsp2 / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 値: 0.071 MDa / 実験値: YES | ||||||||||||||||||||
由来(天然) | 生物種: Severe acute respiratory syndrome coronavirus 2 (SARSコロナウイルス2) | ||||||||||||||||||||
由来(組換発現) | 生物種: Escherichia coli BL21(DE3) (大腸菌) | ||||||||||||||||||||
緩衝液 | pH: 8 / 詳細: Filtered and degassed before running FPLC | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.42 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: This sample was monodisperse | ||||||||||||||||||||
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 400 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | ||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277.15 K 詳細: Blot for 5 seconds before plunging into liquid ethane |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELDBright-field microscopy / 倍率(公称値): 105000 X / アライメント法: ZEMLIN TABLEAU |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 66 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) 詳細: Two datasets comprising of 804 and 1116 118-frame super-resolution movies each were collected with a 3x3 image shift at a magnification of 105,000x with physical pixel size of 0.834 ang/pix ...詳細: Two datasets comprising of 804 and 1116 118-frame super-resolution movies each were collected with a 3x3 image shift at a magnification of 105,000x with physical pixel size of 0.834 ang/pix on a Titan Krios (ThermoFisher) equipped with a K3 camera and a Bioquantum energy filter (Gatan) set to a slit width of 20 eV. Collection dose rate was 8 e-/pixel/second for a total dose of 66 e-/ang^2. Defocus range was 0.8 to 2.4 micron. Each collection was performed with semi-automated scripts in SerialEM. |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV |
-解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.76 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 42579 / 対称性のタイプ: POINT |