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基本情報
登録情報 | データベース: EMDB / ID: EMD-32172 | |||||||||
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タイトル | SARS-CoV-2 Kappa variant spike protein in complex wth ACE2, state C1 | |||||||||
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![]() | SARS-CoV-2 / coronavirus / Kappa variant / B.1.617.1 lineage / spike protein / VIRAL PROTEIN | |||||||||
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 / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / regulation of vasoconstriction ...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 / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / regulation of vasoconstriction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy / angiotensin maturation / Metabolism of Angiotensinogen to Angiotensins / negative regulation of signaling receptor activity / receptor-mediated endocytosis of virus by host cell / carboxypeptidase activity / Attachment and Entry / viral life cycle / positive regulation of cardiac muscle contraction / regulation of cytokine production / blood vessel diameter maintenance / negative regulation of smooth muscle cell proliferation / regulation of transmembrane transporter activity / brush border membrane / negative regulation of ERK1 and ERK2 cascade / cilium / positive regulation of reactive oxygen species metabolic process / metallopeptidase activity / endocytic vesicle membrane / regulation of cell population proliferation / virus receptor activity / regulation of inflammatory response / endopeptidase activity / Maturation of spike protein / viral translation / Translation of Structural Proteins / host cell surface / Virion Assembly and Release / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Potential therapeutics for SARS / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / membrane fusion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / apical plasma membrane / receptor ligand activity / membrane raft / endocytosis involved in viral entry into host cell / endoplasmic reticulum lumen / symbiont entry into host cell / 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 / cell surface / extracellular space / extracellular exosome / zinc ion binding / extracellular region / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.0 Å | |||||||||
![]() | Xu C / Cong Y | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM. 著者: Yifan Wang / Cong Xu / Yanxing Wang / Qin Hong / Chao Zhang / Zuyang Li / Shiqi Xu / Qinyu Zuo / Caixuan Liu / Zhong Huang / Yao Cong / ![]() 要旨: The emergence of SARS-CoV-2 Kappa and Beta variants with enhanced transmissibility and resistance to neutralizing antibodies has created new challenges for the control of the ongoing COVID-19 ...The emergence of SARS-CoV-2 Kappa and Beta variants with enhanced transmissibility and resistance to neutralizing antibodies has created new challenges for the control of the ongoing COVID-19 pandemic. Understanding the structural nature of Kappa and Beta spike (S) proteins and their association with ACE2 is of significant importance. Here we present two cryo-EM structures for each of the Kappa and Beta spikes in the open and open-prone transition states. Compared with wild-type (WT) or G614 spikes, the two variant spikes appear more untwisted/open especially for Beta, and display a considerable population shift towards the open state as well as more pronounced conformational dynamics. Moreover, we capture four conformational states of the S-trimer/ACE2 complex for each of the two variants, revealing an enlarged conformational landscape for the Kappa and Beta S-ACE2 complexes and pronounced population shift towards the three RBDs up conformation. These results implicate that the mutations in Kappa and Beta may modify the kinetics of receptor binding and viral fusion to improve virus fitness. Combined with biochemical analysis, our structural study shows that the two variants are enabled to efficiently interact with ACE2 receptor despite their sensitive ACE2 binding surface is modified to escape recognition by some potent neutralizing MAbs. Our findings shed new light on the pathogenicity and immune evasion mechanism of the Beta and Kappa variants. | |||||||||
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 | EMマップ: ![]() ![]() ![]() |
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マップデータ | ![]() | 20.4 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 11.7 KB 11.7 KB | 表示 表示 | ![]() |
画像 | ![]() | 77 KB | ||
Filedesc metadata | ![]() | 6.1 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 424.5 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 424 KB | 表示 | |
XML形式データ | ![]() | 7 KB | 表示 | |
CIF形式データ | ![]() | 8.1 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 7vx9MC ![]() 7vx1C ![]() 7vx4C ![]() 7vx5C ![]() 7vxaC ![]() 7vxbC ![]() 7vxcC ![]() 7vxdC ![]() 7vxeC ![]() 7vxfC ![]() 7vxiC ![]() 7vxkC ![]() 7vxmC ![]() 7wevC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.093 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
-全体 : Kappa Variant SARS-CoV-2 spike protein in complex with ACE2
全体 | 名称: Kappa Variant SARS-CoV-2 spike protein in complex with ACE2 |
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要素 |
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-超分子 #1: Kappa Variant SARS-CoV-2 spike protein in complex with ACE2
超分子 | 名称: Kappa Variant SARS-CoV-2 spike protein in complex with ACE2 タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() ![]() |
-分子 #1: Spike glycoprotein
分子 | 名称: Spike glycoprotein / タイプ: protein_or_peptide / ID: 1 / コピー数: 3 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 125.563234 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: QCVNLTTRTQ LPPAYTNSFT RGVYYPDKVF RSSVLHSTQD LFLPFFSNVT WFHAIHVSGT NGTKRFDNPV LPFNDGVYFA STEKSNIIR GWIFGTTLDS KTQSLLIVNN ATNVVIKVCE FQFCNDPFLG VYYHKNNKSW MKSEFRVYSS ANNCTFEYVS Q PFLMDLEG ...文字列: QCVNLTTRTQ LPPAYTNSFT RGVYYPDKVF RSSVLHSTQD LFLPFFSNVT WFHAIHVSGT NGTKRFDNPV LPFNDGVYFA STEKSNIIR GWIFGTTLDS KTQSLLIVNN ATNVVIKVCE FQFCNDPFLG VYYHKNNKSW MKSEFRVYSS ANNCTFEYVS Q PFLMDLEG KQGNFKNLRE FVFKNIDGYF KIYSKHTPIN LVRDLPQGFS ALEPLVDLPI GINITRFQTL LALHRSYLTP GD SSSGWTA GAAAYYVGYL QPRTFLLKYN ENGTITDAVD CALDPLSETK CTLKSFTVEK GIYQTSNFRV QPTESIVRFP NIT NLCPFG EVFNATRFAS VYAWNRKRIS NCVADYSVLY NSASFSTFKC YGVSPTKLND LCFTNVYADS FVIRGDEVRQ IAPG QTGKI ADYNYKLPDD FTGCVIAWNS NNLDSKVGGN YNYRYRLFRK SNLKPFERDI STEIYQAGST PCNGVQGFNC YFPLQ SYGF QPTNGVGYQP YRVVVLSFEL LHAPATVCGP KKSTNLVKNK CVNFNFNGLT GTGVLTESNK KFLPFQQFGR DIADTT DAV RDPQTLEILD ITPCSFGGVS VITPGTNTSN QVAVLYQGVN CTEVPVAIHA DQLTPTWRVY STGSNVFQTR AGCLIGA EH VNNSYECDIP IGAGICASYQ TQTNSPRRAR SVASQSIIAY TMSLGAENSV AYSNNSIAIP TNFTISVTTE ILPVSMTK T SVDCTMYICG DSTECSNLLL QYGSFCTQLN RALTGIAVEQ DKNTQEVFAQ VKQIYKTPPI KDFGGFNFSQ ILPDPSKPS KRSFIEDLLF NKVTLADAGF IKQYGDCLGD IAARDLICAQ KFNGLTVLPP LLTDEMIAQY TSALLAGTIT SGWTFGAGAA LQIPFAMQM AYRFNGIGVT QNVLYENQKL IANQFNSAIG KIQDSLSSTA SALGKLQDVV NQNAQALNTL VKQLSSNFGA I SSVLNDIL SRLDPPEAEV QIDRLITGRL QSLQTYVTQQ LIRAAEIRAS ANLAATKMSE CVLGQSKRVD FCGKGYHLMS FP QSAPHGV VFLHVTYVPA QEKNFTTAPA ICHDGKAHFP REGVFVSNGT HWFVTQRNFY EPQIITTDNT FVSGNCDVVI GIV NNTVYD PLQPELDS UniProtKB: Spike glycoprotein |
-分子 #2: Angiotensin-converting enzyme 2
分子 | 名称: Angiotensin-converting enzyme 2 / タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO / EC番号: angiotensin-converting enzyme 2 |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 69.153664 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: STIEEQAKTF LDKFNHEAED LFYQSSLASW NYNTNITEEN VQNMNNAGDK WSAFLKEQST LAQMYPLQEI QNLTVKLQLQ ALQQNGSSV LSEDKSKRLN TILNTMSTIY STGKVCNPDN PQECLLLEPG LNEIMANSLD YNERLWAWES WRSEVGKQLR P LYEEYVVL ...文字列: STIEEQAKTF LDKFNHEAED LFYQSSLASW NYNTNITEEN VQNMNNAGDK WSAFLKEQST LAQMYPLQEI QNLTVKLQLQ ALQQNGSSV LSEDKSKRLN TILNTMSTIY STGKVCNPDN PQECLLLEPG LNEIMANSLD YNERLWAWES WRSEVGKQLR P LYEEYVVL KNEMARANHY EDYGDYWRGD YEVNGVDGYD YSRGQLIEDV EHTFEEIKPL YEHLHAYVRA KLMNAYPSYI SP IGCLPAH LLGDMWGRFW TNLYSLTVPF GQKPNIDVTD AMVDQAWDAQ RIFKEAEKFF VSVGLPNMTQ GFWENSMLTD PGN VQKAVC HPTAWDLGKG DFRILMCTKV TMDDFLTAHH EMGHIQYDMA YAAQPFLLRN GANEGFHEAV GEIMSLSAAT PKHL KSIGL LSPDFQEDNE TEINFLLKQA LTIVGTLPFT YMLEKWRWMV FKGEIPKDQW MKKWWEMKRE IVGVVEPVPH DETYC DPAS LFHVSNDYSF IRYYTRTLYQ FQFQEALCQA AKHEGPLHKC DISNSTEAGQ KLFNMLRLGK SEPWTLALEN VVGAKN MNV RPLLNYFEPL FTWLKDQNKN SFVGWSTDWS PYAD UniProtKB: Angiotensin-converting enzyme 2 |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.5 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
初期モデル | モデルのタイプ: EMDB MAP |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 4.0 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 36511 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |