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-Structure paper
| タイトル | Neutralizing human monoclonal antibodies to poliovirus map to the receptor binding site. |
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| ジャーナル・号・ページ | Nat Commun, Vol. 17, Issue 1, Page 1512, Year 2026 |
| 掲載日 | 2026年1月2日 |
著者 | Benjamin T Waddey / Andrew J Charnesky / Julia E Faust / Nadia M DiNunno / Rama Devudu Puligedda / Sung Hyun Cho / Carol M Bator / Steven D Dong / Kutub Mahmood / Konstantin M Chumakov / Scott K Dessain / Susan L Hafenstein / ![]() |
| PubMed 要旨 | Poliovirus remains a serious threat to human health. Complete eradication of wild-type poliovirus has not yet succeeded, making the development of successful antivirals critical. Microneutralization ...Poliovirus remains a serious threat to human health. Complete eradication of wild-type poliovirus has not yet succeeded, making the development of successful antivirals critical. Microneutralization assays against all three poliovirus serotypes identified a panel of human monoclonal IgGs, which are either serotype-specific or cross-neutralizing. Here, through cryoEM single particle analysis, we solved high resolution structures of four distinct poliovirus-FAb complexes. These antibodies bind to capsids at the circular depression (canyon) surrounding the icosahedral five-fold symmetry axis, which is also the binding site of the poliovirus receptor (PVR). Analysis of these structures confirms overlap of FAb contacts on the viral capsid with those of PVR. For three of the FAbs, the capsid residues are identified that dictate serotype-specific recognition. Contacts for the cross-neutralizing mAb 10D2 are located deep in the capsid canyon. These structural analyses indicate that antibody competition with the receptor likely leads to neutralization of virus particles and inhibition of poliovirus entry into host cells. Thus, the human IgGs studied here may facilitate development of therapeutics for the ongoing efforts in global eradication of poliovirus. |
リンク | Nat Commun / PubMed:41484135 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 2.84 - 3.65 Å |
| 構造データ | EMDB-70318, PDB-9ocl: EMDB-70320, PDB-9oco: EMDB-70339, PDB-9od3: EMDB-70392, PDB-9oea: |
| 化合物 | ![]() ChemComp-PLM: |
| 由来 |
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キーワード | VIRUS / Antibody / Complex |
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poliovirus 2 (ポリオウイルス)
homo sapiens (ヒト)
キーワード