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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: 9n7d | ||||||
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| タイトル | Structure of the Rattus norvegicus ACE2 receptor bound HsItaly2011 RBD complex | ||||||
要素 |
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キーワード | HYDROLASE/VIRAL PROTEIN / HKU25 coronaviruses / MERSr-CoV / Spike glycoprotein / fusion protein / Structural Genomics / Seattle Structural Genomics Center for Infectious Disease / SSGCID / inhibitor / VIRAL PROTEIN-HYDROLASE complex / HYDROLASE-VIRAL PROTEIN complex | ||||||
| 機能・相同性 | 機能・相同性情報Metabolism of Angiotensinogen to Angiotensins / 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 / positive regulation of gap junction assembly / regulation of systemic arterial blood pressure by renin-angiotensin / tryptophan transport / regulation of cardiac conduction ...Metabolism of Angiotensinogen to Angiotensins / 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 / positive regulation of gap junction assembly / regulation of systemic arterial blood pressure by renin-angiotensin / tryptophan transport / regulation of cardiac conduction / maternal process involved in female pregnancy / peptidyl-dipeptidase activity / transporter activator activity / carboxypeptidase activity / angiotensin maturation / metallocarboxypeptidase activity / positive regulation of cardiac muscle contraction / negative regulation of smooth muscle cell proliferation / brush border membrane / negative regulation of ERK1 and ERK2 cascade / metallopeptidase activity / virus receptor activity / endopeptidase activity / entry receptor-mediated virion attachment to host cell / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated virion attachment to host cell / cilium / apical plasma membrane / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / host cell plasma membrane / virion membrane / cell surface / extracellular space / extracellular region / metal ion binding / identical protein binding / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能 | ||||||
| 生物種 | ![]() Merbecovirus (ウイルス) | ||||||
| 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: 2.5 Å | ||||||
データ登録者 | Park, Y.J. / Seattle Structural Genomics Center for Infectious Disease (SSGCID) / Veesler, D. | ||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: bioRxiv / 年: 2025タイトル: ACE2 utilization of HKU25 clade MERS-related coronaviruses with broad geographic distribution. 著者: Chen Liu / Young-Jun Park / Cheng-Bao Ma / Cameron Stuart / Risako Gen / Yu-Cheng Sun / Xiao Yang / Mei-Yi Lin / Qing Xiong / Jun-Yu Si / Peng Liu / David Veesler / Huan Yan / ![]() 要旨: Dipeptidyl peptidase-4 (DPP4) is a well-established receptor for several MERS-related coronaviruses (MERSr-CoVs) isolated from humans, camels, pangolins, and bats (1-6). However, the receptor usage ...Dipeptidyl peptidase-4 (DPP4) is a well-established receptor for several MERS-related coronaviruses (MERSr-CoVs) isolated from humans, camels, pangolins, and bats (1-6). However, the receptor usage of many genetically diverse bat MERSr-CoVs with broad geographical distributions remains poorly understood. Recent studies have identified angiotensin-converting enzyme 2 (ACE2) as an entry receptor for multiple merbecovirus clades. Here, using viral antigen and pseudovirus-based functional assays, we demonstrate that several bat merbecoviruses from the HKU25 clade previously thought to utilize DPP4 (7), employ ACE2 as their functional receptor. Cryo-electron microscopy analysis revealed that HsItaly2011 and VsCoV-a7 recognize ACE2 with a binding mode sharing similarity with that of HKU5 but involving remodeled interfaces and distinct ortholog selectivity, suggesting a common evolutionary origin of ACE2 utilization for these two clades of viruses. EjCoV-3, a strain closely related to the DPP4-using MERSr-CoV BtCoV-422, exhibited relatively broad ACE2 ortholog tropism and could utilize human ACE2 albeit suboptimally. Despite differences in entry mechanisms and spike proteolytic activation compared to MERS-CoV, these viruses remain sensitive to several broadly neutralizing antibodies and entry inhibitors. These findings redefine our understanding of the evolution of receptor usage among MERSr-CoVs and highlight the versatility of ACE2 as a functional receptor for diverse coronaviruses. | ||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 9n7d.cif.gz | 213.2 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9n7d.ent.gz | 151 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9n7d.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| 文書・要旨 | 9n7d_validation.pdf.gz | 1.4 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 9n7d_full_validation.pdf.gz | 1.4 MB | 表示 | |
| XML形式データ | 9n7d_validation.xml.gz | 35.2 KB | 表示 | |
| CIF形式データ | 9n7d_validation.cif.gz | 52.5 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/n7/9n7d ftp://data.pdbj.org/pub/pdb/validation_reports/n7/9n7d | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 49092MC ![]() 9n7eC 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 F&H 検索 |
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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
-タンパク質 , 2種, 2分子 AB
| #1: タンパク質 | 分子量: 88709.758 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Homo sapiens (ヒト)参照: UniProt: Q5EGZ1, 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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| #2: タンパク質 | 分子量: 29871.674 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Merbecovirus (ウイルス) / 株: HsItaly2011 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: A0A2I6PIW5 |
-糖 , 2種, 9分子 
| #3: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #4: 糖 | ChemComp-NAG / |
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-非ポリマー , 2種, 111分子 


| #5: 化合物 | ChemComp-ZN / |
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| #6: 水 | ChemComp-HOH / |
-詳細
| 研究の焦点であるリガンドがあるか | N |
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| Has protein modification | Y |
-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: R.nor ACE2 receptor bound HsItaly2011 RBD complex / タイプ: COMPLEX / Entity ID: #1-#2 / 由来: MULTIPLE SOURCES |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: Merbecovirus (ウイルス) / 株: HsItaly2011 |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7 |
| 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: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 200 nm |
| 撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||
| 3次元再構成 | 解像度: 2.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 831432 / 対称性のタイプ: POINT | ||||||||||||||||
| 精密化 | 交差検証法: NONE |
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万見について





Merbecovirus (ウイルス)
米国, 1件
引用



PDBj


Homo sapiens (ヒト)
FIELD EMISSION GUN