+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8g72 | |||||||||
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タイトル | SARS-CoV-2 spike/Nb2 complex with 1 RBD up (local refinement at 5.6 A) | |||||||||
要素 |
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キーワード | VIRAL PROTEIN/IMMUNE SYSTEM / SARS-CoV-2 / VIRAL PROTEIN-IMMUNE SYSTEM complex / Nanobody | |||||||||
機能・相同性 | 機能・相同性情報 Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell ...Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated endocytosis of virus by host cell / membrane fusion / Attachment and Entry / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 | |||||||||
生物種 | Vicugna pacos (アルパカ) Severe acute respiratory syndrome coronavirus 2 (ウイルス) | |||||||||
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: 5.6 Å | |||||||||
データ登録者 | Ye, G. / Bu, F. / Liu, B. / Li, F. | |||||||||
資金援助 | 米国, 2件
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引用 | ジャーナル: J Virol / 年: 2023 タイトル: Discovery of Nanosota-2, -3, and -4 as super potent and broad-spectrum therapeutic nanobody candidates against COVID-19. 著者: Gang Ye / Ruangang Pan / Fan Bu / Jian Zheng / Alise Mendoza / Wei Wen / Lanying Du / Benjamin Spiller / Brian E Wadzinski / Bin Liu / Stanley Perlman / Fang Li / 要旨: The COVID-19 pandemic exposed limitations of conventional antibodies as therapeutics, including high cost, limited potency, ineffectiveness against new viral variants, and primary reliance on ...The COVID-19 pandemic exposed limitations of conventional antibodies as therapeutics, including high cost, limited potency, ineffectiveness against new viral variants, and primary reliance on injection-only delivery. Nanobodies are single-domain antibodies with therapeutic potentials. We discovered three anti-SARS-CoV-2 nanobodies, named Nanosota-2, -3, and -4, from an immunized alpaca. Nanosota-2 is super potent against prototypic SARS-CoV-2, Nanosota-3 is highly potent against the omicron variant, and Nanosota-4 is effective against both SARS-CoV-1 and SARS-CoV-2. In addition to their super potency and combined broad antiviral spectrum, these nanobodies are cost-effective, can be easily adapted to new viral variants through phage display, and can potentially be administered as inhalers. The Nanosota series are powerful therapeutic candidates to combat circulating SARS-CoV-2 and prepare for possible future coronavirus pandemics. | |||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8g72.cif.gz | 103.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8g72.ent.gz | 64.7 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8g72.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
文書・要旨 | 8g72_validation.pdf.gz | 1.4 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8g72_full_validation.pdf.gz | 1.4 MB | 表示 | |
XML形式データ | 8g72_validation.xml.gz | 35.7 KB | 表示 | |
CIF形式データ | 8g72_validation.cif.gz | 49.2 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/g7/8g72 ftp://data.pdbj.org/pub/pdb/validation_reports/g7/8g72 | HTTPS FTP |
-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: 抗体 | 分子量: 16750.008 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Vicugna pacos (アルパカ) / 遺伝子: VHH / 発現宿主: Escherichia coli (大腸菌) |
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#2: タンパク質 | 分子量: 136890.484 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 (ウイルス) 遺伝子: S, 2 / 細胞株 (発現宿主): 293F / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 |
Has protein modification | Y |
-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 spike/Nb2 complex with 1 RBD up / タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES |
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分子量 | 値: 0.425 MDa / 実験値: YES |
由来(天然) | 生物種: Severe acute respiratory syndrome coronavirus 2 (ウイルス) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: 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 FIELD / 最大 デフォーカス(公称値): 2400 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
-解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 5.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 25124 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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