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-Structure paper
| タイトル | Molecular basis of convergent evolution of ACE2 receptor utilization among HKU5 coronaviruses. |
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| ジャーナル・号・ページ | Cell, Vol. 188, Issue 6, Page 1711-1728.e21, Year 2025 |
| 掲載日 | 2025年3月20日 |
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 / ![]() |
| PubMed 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. |
リンク | Cell / PubMed:39922192 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 2.0 - 3.1 Å |
| 構造データ | EMDB-46512, PDB-9d32: EMDB-47358, PDB-9e0i: EMDB-47823, PDB-9ea0: EMDB-48048, PDB-9eh8: |
| 化合物 | ![]() ChemComp-NAG: ![]() ChemComp-ZN: ![]() ChemComp-HOH: ![]() ChemComp-FOL: ![]() ChemComp-EIC: |
| 由来 |
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キーワード | 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 / VIRAL PROTEIN / VIRAL PROTEIN/IMMUNE SYSTEM / VIRAL PROTEIN-IMMUNE SYSTEM complex |
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Homo sapiens (ヒト)
pipistrellus abramus (アブラコウモリ)
pipistrellus bat coronavirus hku5 (ウイルス)
キーワード