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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 7to4 | |||||||||||||||
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タイトル | Structural and functional impact by SARS-CoV-2 Omicron spike mutations | |||||||||||||||
![]() | Spike glycoprotein | |||||||||||||||
![]() | VIRAL PROTEIN | |||||||||||||||
機能・相同性 | ![]() 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 / Attachment and Entry / membrane fusion / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / symbiont-mediated suppression of host innate immune response / host cell surface receptor binding / 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 | ![]() ![]() | |||||||||||||||
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: 3.4 Å | |||||||||||||||
![]() | Zhang, J. / Xiao, T.S. / Cai, Y.F. / Peng, H.Q. / Volloch, S.R. / Chen, B. | |||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural and functional impact by SARS-CoV-2 Omicron spike mutations. 著者: Jun Zhang / Yongfei Cai / Christy L Lavine / Hanqin Peng / Haisun Zhu / Krishna Anand / Pei Tong / Avneesh Gautam / Megan L Mayer / Sophia Rits-Volloch / Shaowei Wang / Piotr Sliz / Duane R ...著者: Jun Zhang / Yongfei Cai / Christy L Lavine / Hanqin Peng / Haisun Zhu / Krishna Anand / Pei Tong / Avneesh Gautam / Megan L Mayer / Sophia Rits-Volloch / Shaowei Wang / Piotr Sliz / Duane R Wesemann / Wei Yang / Michael S Seaman / Jianming Lu / Tianshu Xiao / Bing Chen / ![]() 要旨: The Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), bearing an unusually high number of mutations, has become a dominant strain in many countries within several weeks. ...The Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), bearing an unusually high number of mutations, has become a dominant strain in many countries within several weeks. We report here structural, functional, and antigenic properties of its full-length spike (S) protein with a native sequence in comparison with those of previously prevalent variants. Omicron S requires a substantially higher level of host receptor ACE2 for efficient membrane fusion than other variants, possibly explaining its unexpected cellular tropism. Mutations not only remodel the antigenic structure of the N-terminal domain of the S protein but also alter the surface of the receptor-binding domain in a way not seen in other variants, consistent with its remarkable resistance to neutralizing antibodies. These results suggest that Omicron S has acquired an extraordinary ability to evade host immunity by excessive mutations, which also compromise its fusogenic capability. | |||||||||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 689.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 577.4 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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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: 141490.141 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: S, 2 / 発現宿主: ![]() #2: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #3: 多糖 | #4: 多糖 | alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #5: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | N | |
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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: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: One RBD-up state of pre-fusion SARS-CoV-2 Omicron variant spike protein タイプ: COMPLEX 詳細: One RBD-up state of pre-fusion SARS-CoV-2 Omicron variant spike protein Entity ID: #1 / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 値: 440 kDa/nm / 実験値: NO | ||||||||||||||||||||
由来(天然) | 生物種: ![]() ![]() | ||||||||||||||||||||
由来(組換発現) | 生物種: ![]() | ||||||||||||||||||||
緩衝液 | pH: 7.5 | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||
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 |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 500 nm |
撮影 | 電子線照射量: 53.592 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.20_4459: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 3873988 | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 87330 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: AB INITIO MODEL | ||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 7KRR PDB chain-ID: A / Pdb chain residue range: 14-1211 | ||||||||||||||||||||||||
拘束条件 |
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