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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: 8d5a | |||||||||||||||||||||
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タイトル | Middle state of SARS-CoV-2 BA.2 variant spike protein | |||||||||||||||||||||
![]() | 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: 3.1 Å | |||||||||||||||||||||
![]() | Zhang, J. / Tang, W.C. / Gao, H.L. / Shi, W. / Peng, H.Q. / Volloch, S.R. / Xiao, T.S. / Chen, B. | |||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural and functional characteristics of the SARS-CoV-2 Omicron subvariant BA.2 spike protein. 著者: Jun Zhang / Weichun Tang / Hailong Gao / Christy L Lavine / Wei Shi / Hanqin Peng / Haisun Zhu / Krishna Anand / Matina Kosikova / Hyung Joon Kwon / Pei Tong / Avneesh Gautam / Sophia Rits- ...著者: Jun Zhang / Weichun Tang / Hailong Gao / Christy L Lavine / Wei Shi / Hanqin Peng / Haisun Zhu / Krishna Anand / Matina Kosikova / Hyung Joon Kwon / Pei Tong / Avneesh Gautam / Sophia Rits-Volloch / Shaowei Wang / Megan L Mayer / Duane R Wesemann / Michael S Seaman / Jianming Lu / Tianshu Xiao / Hang Xie / Bing Chen / ![]() 要旨: The Omicron subvariant BA.2 has become the dominant circulating strain of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in many countries. Here, we have characterized structural, ...The Omicron subvariant BA.2 has become the dominant circulating strain of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in many countries. Here, we have characterized structural, functional and antigenic properties of the full-length BA.2 spike (S) protein and compared replication of the authentic virus in cell culture and an animal model with previously prevalent variants. BA.2 S can fuse membranes slightly more efficiently than Omicron BA.1, but still less efficiently than other previous variants. Both BA.1 and BA.2 viruses replicated substantially faster in animal lungs than the early G614 (B.1) strain in the absence of pre-existing immunity, possibly explaining the increased transmissibility despite their functionally compromised spikes. As in BA.1, mutations in the BA.2 S remodel its antigenic surfaces, leading to strong resistance to neutralizing antibodies. These results suggest that both immune evasion and replicative advantage may contribute to the heightened transmissibility of the Omicron subvariants. | |||||||||||||||||||||
履歴 |
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構造の表示
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 | ![]() | 692.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 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
関連構造データ | ![]() 27207MC ![]() 8d55C ![]() 8d56C M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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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: 144688.156 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 / Variant: BA.2 SARS-CoV-2 spike protein variant / 発現宿主: ![]() #2: 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 #3: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #4: 多糖 | #5: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | Y | |
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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: Middle state of pre-fusion SARS-CoV-2 BA.2 variant spike protein タイプ: COMPLEX 詳細: Middle state of pre-fusion SARS-CoV-2 BA.2 variant spike protein Entity ID: #1 / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 値: 0.600 MDa / 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: 53.853 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: 6763049 | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 113667 / 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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