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基本情報
登録情報 | データベース: PDB / ID: 7wvq | ||||||
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タイトル | Cryo-EM structure of SARS-CoV-2 Omicron Spike protein with human ACE2 receptor, C3 state | ||||||
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![]() | VIRAL PROTEIN / SARS-CoV-2 / Omicron / Spike protein / ACE2 / HYDROLASE-VIRAL PROTEIN complex | ||||||
機能・相同性 | ![]() positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; 金属プロテアーゼ / angiotensin-mediated drinking behavior / tryptophan transport / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / regulation of vasoconstriction / regulation of cardiac conduction ...positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; 金属プロテアーゼ / angiotensin-mediated drinking behavior / tryptophan transport / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / regulation of vasoconstriction / regulation of cardiac conduction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy / angiotensin maturation / metallocarboxypeptidase activity / Metabolism of Angiotensinogen to Angiotensins / Attachment and Entry / carboxypeptidase activity / negative regulation of signaling receptor activity / positive regulation of cardiac muscle contraction / regulation of cytokine production / viral life cycle / blood vessel diameter maintenance / brush border membrane / regulation of transmembrane transporter activity / negative regulation of smooth muscle cell proliferation / negative regulation of ERK1 and ERK2 cascade / cilium / metallopeptidase activity / endocytic vesicle membrane / positive regulation of reactive oxygen species metabolic process / virus receptor activity / regulation of cell population proliferation / regulation of inflammatory response / Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / endopeptidase activity / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / Potential therapeutics for SARS / structural constituent of virion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / entry receptor-mediated virion attachment to host cell / 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 / host cell surface receptor binding / symbiont entry into host cell / membrane raft / apical plasma membrane / fusion of virus membrane with host plasma membrane / endoplasmic reticulum lumen / 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 / cell surface / extracellular space / zinc ion binding / extracellular exosome / extracellular region / membrane / identical protein binding / 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: 4.04 Å | ||||||
![]() | Han, W.Y. / Wang, Y.F. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular basis of receptor binding and antibody neutralization of Omicron. 著者: Qin Hong / Wenyu Han / Jiawei Li / Shiqi Xu / Yifan Wang / Cong Xu / Zuyang Li / Yanxing Wang / Chao Zhang / Zhong Huang / Yao Cong / ![]() 要旨: The SARS-CoV-2 Omicron variant exhibits striking immune evasion and is spreading rapidly worldwide. Understanding the structural basis of the high transmissibility and enhanced immune evasion of ...The SARS-CoV-2 Omicron variant exhibits striking immune evasion and is spreading rapidly worldwide. Understanding the structural basis of the high transmissibility and enhanced immune evasion of Omicron is of high importance. Here, using cryo-electron microscopy, we present both the closed and the open states of the Omicron spike (S) protein, which appear more compact than the counterparts of the G614 strain, potentially related to enhanced inter-protomer and S1-S2 interactions induced by Omicron residue substitution. The closed state showing dominant population may indicate a conformational masking mechanism for the immune evasion of Omicron. Moreover, we captured three states for the Omicron S-ACE2 complex, revealing that the substitutions on the Omicron RBM result in new salt bridges and hydrogen bonds, more favourable electrostatic surface properties, and an overall strengthened S-ACE2 interaction, in line with the observed higher ACE2 affinity of Omicron S than of G614. Furthermore, we determined the structures of Omicron S in complex with the Fab of S3H3, an antibody that is able to cross-neutralize major variants of concern including Omicron, elucidating the structural basis for S3H3-mediated broad-spectrum neutralization. Our findings shed light on the receptor engagement and antibody neutralization or evasion of Omicron and may also inform the design of broadly effective vaccines against SARS-CoV-2. | ||||||
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構造ビューア | 分子: ![]() ![]() |
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-検証レポート
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-関連構造データ
関連構造データ | ![]() 32857MC ![]() 7wk2C ![]() 7wk3C ![]() 7wk4C ![]() 7wk5C ![]() 7wk6C ![]() 7wk8C ![]() 7wk9C ![]() 7wkaC ![]() 7wvnC ![]() 7wvoC ![]() 7wvpC 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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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 140214.625 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: タンパク質 | | 分子量: 72396.492 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 参照: UniProt: Q9BYF1, angiotensin-converting enzyme 2, 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; 金属プロテアーゼ |
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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 |
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由来(組換発現) |
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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 |
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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): 2500 nm / 最小 デフォーカス(公称値): 600 nm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.10.1_2155: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 4.04 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 21125 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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