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基本情報
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タイトル | Cryo-EM structure of the GD-BatCoV (BtCoV/Ii/GD/2014-422) RBD in complex with human DPP4 | ||||||||||||
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![]() | complex / VIRAL PROTEIN | ||||||||||||
機能・相同性 | ![]() glucagon processing / negative regulation of neutrophil chemotaxis / regulation of cell-cell adhesion mediated by integrin / Synthesis, secretion, and inactivation of Glucose-dependent Insulinotropic Polypeptide (GIP) / negative regulation of extracellular matrix disassembly / dipeptidyl-peptidase IV / Fc-gamma receptor I complex binding / chemorepellent activity / psychomotor behavior / intercellular canaliculus ...glucagon processing / negative regulation of neutrophil chemotaxis / regulation of cell-cell adhesion mediated by integrin / Synthesis, secretion, and inactivation of Glucose-dependent Insulinotropic Polypeptide (GIP) / negative regulation of extracellular matrix disassembly / dipeptidyl-peptidase IV / Fc-gamma receptor I complex binding / chemorepellent activity / psychomotor behavior / intercellular canaliculus / complement-dependent cytotoxicity / IgG immunoglobulin complex / dipeptidyl-peptidase activity / peptide hormone processing / antibody-dependent cellular cytotoxicity / immunoglobulin receptor binding / immunoglobulin complex, circulating / Classical antibody-mediated complement activation / Initial triggering of complement / locomotory exploration behavior / lamellipodium membrane / FCGR activation / endocytic vesicle / complement activation, classical pathway / Role of phospholipids in phagocytosis / behavioral fear response / endothelial cell migration / aminopeptidase activity / antigen binding / T cell costimulation / receptor-mediated endocytosis of virus by host cell / serine-type peptidase activity / FCGR3A-mediated IL10 synthesis / T cell activation / Regulation of Complement cascade / B cell receptor signaling pathway / FCGR3A-mediated phagocytosis / Regulation of actin dynamics for phagocytic cup formation / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / antibacterial humoral response / lamellipodium / virus receptor activity / protease binding / Interleukin-4 and Interleukin-13 signaling / blood microparticle / adaptive immune response / membrane fusion / response to hypoxia / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated virion attachment to host cell / cell adhesion / apical plasma membrane / membrane raft / endocytosis involved in viral entry into host cell / symbiont entry into host cell / signaling receptor binding / lysosomal membrane / fusion of virus membrane with host plasma membrane / serine-type endopeptidase activity / focal adhesion / fusion of virus membrane with host endosome membrane / positive regulation of cell population proliferation / viral envelope / host cell plasma membrane / virion membrane / cell surface / protein homodimerization activity / proteolysis / extracellular space / extracellular exosome / 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: 3.4 Å | ||||||||||||
![]() | Yuan H / Xiong X | ||||||||||||
資金援助 | 3件
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![]() | ![]() タイトル: Structures and receptor binding activities of merbecovirus spike proteins reveal key signatures for human DPP4 adaptation. 著者: Hang Yuan / Jingjing Wang / Yong Ma / Zimu Li / Xijie Gao / Gul Habib / Banghui Liu / Jing Chen / Jun He / Peng Zhou / Zheng-Li Shi / Xinwen Chen / Xiaoli Xiong / ![]() 要旨: Merbecoviruses from bats, pangolins, and hedgehogs pose significant zoonotic threats, with a limited understanding of receptor binding by their spike (S) proteins. Here, we report cryo-EM structures ...Merbecoviruses from bats, pangolins, and hedgehogs pose significant zoonotic threats, with a limited understanding of receptor binding by their spike (S) proteins. Here, we report cryo-EM structures of GD-BatCoV (BtCoV-422) and SE-PangolinCoV (MjHKU4r-CoV-1) RBDs in complex with human DPP4 (hDPP4). These structures exhibit a substantial offset in their hDPP4 interaction interfaces, revealing a conserved hydrophobic cluster as a convergent signature of DPP4 binding within the MERS-HKU4 clade of merbecoviruses. Structure-guided mutagenesis demonstrates that favorable interactions are distributed across multiple receptor binding motif (RBM) regions, working synergistically to confer high-affinity hDPP4 binding. Swapping of the merbecovirus RBM regions indicate limited plasticity and interchangeability among these regions. In addition, we report cryo-EM structures of six merbecovirus S-trimers. Structure-based phylogenetics suggests that hDPP4-binding merbecoviruses undergo convergent evolution, while ACE2-binding merbecoviruses exhibit diversification in their binding mechanisms. These findings offer critical insights into merbecovirus receptor utilization, providing a structural understanding for future surveillance. | ||||||||||||
履歴 |
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構造の表示
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マップデータ | ![]() | 117.4 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 21.1 KB 21.1 KB | 表示 表示 | ![]() |
画像 | ![]() | 6.6 KB | ||
Filedesc metadata | ![]() | 7.2 KB | ||
その他 | ![]() ![]() | 98.3 MB 98.4 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 969.9 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 969.4 KB | 表示 | |
XML形式データ | ![]() | 13.7 KB | 表示 | |
CIF形式データ | ![]() | 16.3 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 | ![]() 9jmjMC ![]() 9jmfC ![]() 9jmgC ![]() 9jmhC ![]() 9jmiC ![]() 9jmmC ![]() 9jmnC ![]() 9jmoC ![]() 9jmpC 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 | 類似検索 - 機能・相同性 ![]() |
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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: 1.32 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
ファイル | emd_61604_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_61604_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : GD-BatCoV-RBD (BtCoV/Ii/GD/2014-422): human DPP4 complex
全体 | 名称: GD-BatCoV-RBD (BtCoV/Ii/GD/2014-422): human DPP4 complex |
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要素 |
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-超分子 #1: GD-BatCoV-RBD (BtCoV/Ii/GD/2014-422): human DPP4 complex
超分子 | 名称: GD-BatCoV-RBD (BtCoV/Ii/GD/2014-422): human DPP4 complex タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#2 |
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由来(天然) | 生物種: ![]() ![]() |
-分子 #1: Dipeptidyl peptidase 4 soluble form,Isoform 1 of Immunoglobulin h...
分子 | 名称: Dipeptidyl peptidase 4 soluble form,Isoform 1 of Immunoglobulin heavy constant gamma 1 タイプ: protein_or_peptide / ID: 1 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 114.306672 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MPMGSLQPLA TLYLLGMLVA SVLASRKTYT LTDYLKNTYR LKLYSLRWIS DHEYLYKQEN NILVFNAEYG NSSVFLENST FDEFGHSIN DYSISPDGQF ILLEYNYVKQ WRHSYTASYD IYDLNKRQLI TEERIPNNTQ WVTWSPVGHK LAYVWNNDIY V KIEPNLPS ...文字列: MPMGSLQPLA TLYLLGMLVA SVLASRKTYT LTDYLKNTYR LKLYSLRWIS DHEYLYKQEN NILVFNAEYG NSSVFLENST FDEFGHSIN DYSISPDGQF ILLEYNYVKQ WRHSYTASYD IYDLNKRQLI TEERIPNNTQ WVTWSPVGHK LAYVWNNDIY V KIEPNLPS YRITWTGKED IIYNGITDWV YEEEVFSAYS ALWWSPNGTF LAYAQFNDTE VPLIEYSFYS DESLQYPKTV RV PYPKAGA VNPTVKFFVV NTDSLSSVTN ATSIQITAPA SMLIGDHYLC DVTWATQERI SLQWLRRIQN YSVMDICDYD ESS GRWNCL VARQHIEMST TGWVGRFRPS EPHFTLDGNS FYKIISNEEG YRHICYFQID KKDCTFITKG TWEVIGIEAL TSDY LYYIS NEYKGMPGGR NLYKIQLSDY TKVTCLSCEL NPERCQYYSV SFSKEAKYYQ LRCSGPGLPL YTLHSSVNDK GLRVL EDNS ALDKMLQNVQ MPSKKLDFII LNETKFWYQM ILPPHFDKSK KYPLLLDVYA GPCSQKADTV FRLNWATYLA STENII VAS FDGRGSGYQG DKIMHAINRR LGTFEVEDQI EAARQFSKMG FVDNKRIAIW GWSYGGYVTS MVLGSGSGVF KCGIAVA PV SRWEYYDSVY TERYMGLPTP EDNLDHYRNS TVMSRAENFK QVEYLLIHGT ADDNVHFQQS AQISKALVDV GVDFQAMW Y TDEDHGIASS TAHQHIYTHM SHFIKQCFSL PDPLVPRGSG GGGDPEPKSC DKTHTCPPCP APELLGGPSV FLFPPKPKD TLMISRTPEV TCVVVDVSHE DPEVKFNWYV DGVEVHNAKT KPREEQYNST YRVVSVLTVL HQDWLNGKEY KCKVSNKALP APIEKTISK AKGQPREPQV YTLPPSRDEL TKNQVSLTCL VKGFYPSDIA VEWESNGQPE NNYKTTPPVL DSDGSFFLYS K LTVDKSRW QQGNVFSCSV MHEALHNHYT QKSLSLSPGK UniProtKB: Dipeptidyl peptidase 4, Immunoglobulin heavy constant gamma 1 |
-分子 #2: Spike glycoprotein,Isoform 1 of Immunoglobulin heavy constant gamma 1
分子 | 名称: Spike glycoprotein,Isoform 1 of Immunoglobulin heavy constant gamma 1 タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 55.544816 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MRLSVCLLMF LLTPIKEVHS RGQFIEQPNS VECDFTKLLS GTPPQVYNFN RLVFTNCNYN LTKLLSLFMV NEFSCDGISP DAIARGCYS SLTVDYFAYP LSMKSYMQPG SAGVISQYNY KQSFANPTCR IFATAPANLT ITKPSSYSFI SKCSRLTGDN S HIETPIVI ...文字列: MRLSVCLLMF LLTPIKEVHS RGQFIEQPNS VECDFTKLLS GTPPQVYNFN RLVFTNCNYN LTKLLSLFMV NEFSCDGISP DAIARGCYS SLTVDYFAYP LSMKSYMQPG SAGVISQYNY KQSFANPTCR IFATAPANLT ITKPSSYSFI SKCSRLTGDN S HIETPIVI NPGEYSICKN FAPNGFSQDG DYFTRQLSQL EGGGILVGVG SVTPMTDTLQ MGFIISVQYG TDTNSVCPMM DL GNSTTIT DKLGVCVEYD PLVPRGSGGG GDPEPKSCDK THTCPPCPAP ELLGGPSVFL FPPKPKDTLM ISRTPEVTCV VVD VSHEDP EVKFNWYVDG VEVHNAKTKP REEQYNSTYR VVSVLTVLHQ DWLNGKEYKC KVSNKALPAP IEKTISKAKG QPRE PQVYT LPPSRDELTK NQVSLTCLVK GFYPSDIAVE WESNGQPENN YKTTPPVLDS DGSFFLYSKL TVDKSRWQQG NVFSC SVMH EALHNHYTQK SLSLSPGK UniProtKB: Spike glycoprotein, Immunoglobulin heavy constant gamma 1 |
-分子 #5: 2-acetamido-2-deoxy-beta-D-glucopyranose
分子 | 名称: 2-acetamido-2-deoxy-beta-D-glucopyranose / タイプ: ligand / ID: 5 / コピー数: 8 / 式: NAG |
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分子量 | 理論値: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-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: 7.4 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TALOS ARCTICA |
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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: 60.0 e/Å2 |
電子線 | 加速電圧: 200 kV / 電子線源: ![]() |
電子光学系 | 照射モード: OTHER / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 0.8 µm |
実験機器 | ![]() モデル: Talos Arctica / 画像提供: FEI Company |