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基本情報
登録情報 | データベース: PDB / ID: 9d32 | ||||||
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タイトル | Structure of the HKU5 RBD bound to the P. abramus ACE2 receptor | ||||||
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![]() | VIRAL PROTEIN/HYDROLASE / MERS-related HKU5 coronaviruses / MERSr-CoV / Spike glycoprotein / fusion protein / Pipistrellus abramus ACE2 / Structural Genomics / Seattle Structural Genomics Center for Infectious Disease / SSGCID / inhibitor / VIRAL PROTEIN-HYDROLASE complex | ||||||
機能・相同性 | ![]() 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 / peptidyl-dipeptidase activity / carboxypeptidase activity / metallopeptidase activity / 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 ...加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 / peptidyl-dipeptidase activity / carboxypeptidase activity / metallopeptidase activity / 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 / host cell plasma membrane / virion membrane / proteolysis / extracellular space / metal ion binding / membrane / cytoplasm 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 | ||||||
![]() | Park, Y.J. / Seattle Structural Genomics Center for Infectious Disease (SSGCID) / Veesler, D. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular basis of convergent evolution of ACE2 receptor utilization among HKU5 coronaviruses. 著者: Young-Jun Park / Chen Liu / Jimin Lee / Jack T Brown / Cheng-Bao Ma / Peng Liu / Risako Gen / Qing Xiong / Samantha K Zepeda / Cameron Stewart / Amin Addetia / Caroline J Craig / M Alejandra ...著者: Young-Jun Park / Chen Liu / Jimin Lee / Jack T Brown / Cheng-Bao Ma / Peng Liu / Risako Gen / Qing Xiong / Samantha K Zepeda / Cameron Stewart / Amin Addetia / Caroline J Craig / M Alejandra Tortorici / Abeer N Alshukairi / Tyler N Starr / Huan Yan / David Veesler / ![]() ![]() ![]() 要旨: DPP4 was considered a canonical receptor for merbecoviruses until the recent discovery of African bat-borne MERS-related coronaviruses using ACE2. The extent and diversity of ACE2 utilization among ...DPP4 was considered a canonical receptor for merbecoviruses until the recent discovery of African bat-borne MERS-related coronaviruses using ACE2. The extent and diversity of ACE2 utilization among merbecoviruses and their receptor species tropism remain unknown. Here, we reveal that HKU5 enters host cells utilizing Pipistrellus abramus (P.abr) and several non-bat mammalian ACE2s through a binding mode distinct from that of any other known ACE2-using coronaviruses. We defined the molecular determinants of receptor species tropism and identified a single amino acid mutation enabling HKU5 to utilize human ACE2, providing proof of principle for machine-learning-assisted outbreak preparedness. We show that MERS-CoV and HKU5 have markedly distinct antigenicity and identified several HKU5 inhibitors, including two clinical compounds. Our findings profoundly alter our understanding of coronavirus evolution, as several merbecovirus clades independently evolved ACE2 utilization, and pave the way for developing countermeasures against viruses poised for human emergence. | ||||||
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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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PDBx/mmCIF形式 | ![]() | 175.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 129.8 KB | 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
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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: 89172.906 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: residues (-6)-16 expression signal peptide; residues 725-730 thrombin cleavage site; residues 731-750 expression AVI tag; residues 751-753 expression linker; residues 754-761 expression HIS tag 由来: (組換発現) ![]() 発現宿主: ![]() 参照: UniProt: C7ECT9, 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素 | ||||||
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#2: タンパク質 | 分子量: 29224.840 Da / 分子数: 1 / Fragment: Receptor-binding domain (UNP residues 388-586) / 由来タイプ: 組換発現 詳細: residues 358-388 expression signal peptide; residues 588-593 thrombin cleavage site; residues 594-598 expression linker; residues 599-613 expression AVI tag; residues 614-616 expression ...詳細: residues 358-388 expression signal peptide; residues 588-593 thrombin cleavage site; residues 594-598 expression linker; residues 599-613 expression AVI tag; residues 614-616 expression linker; residues 617-624 expression HIS tag 由来: (組換発現) ![]() 発現宿主: ![]() | ||||||
#3: 多糖 | alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose | ||||||
#4: 糖 | ChemComp-NAG / #5: 化合物 | ChemComp-ZN / | 研究の焦点であるリガンドがあるか | N | 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: HKU5 RBD bound to the P. abramus ACE2 receptor / 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: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 8 |
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: ![]() |
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): 500 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 | 名称: cryoSPARC / カテゴリ: 3次元再構成 | ||||||||||||||||||||||||
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CTF補正 |
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3次元再構成 | Entry-ID: 9D32 / 粒子像の数: 550684 / 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 対称性のタイプ: POINT
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精密化 | 最高解像度: 3.1 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
拘束条件 |
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