A novel druggable interprotomer pocket in the capsid of rhino- and enteroviruses

Abdelnabi, Rana and Geraets, James A. and Ma, Yipeng and Mirabelli, Carmen and Flatt, Justin W. and Domanska, Aušra and Delang, Leen and Jochmans, Dirk and Kumar, Timiri Ajay and Jayaprakash, Venkatesan and Sinha, Barij Nayan and Leyssen, Pieter and Butcher, Sarah J. and Neyts, Johan and Khosla, Chaitan (2019) A novel druggable interprotomer pocket in the capsid of rhino- and enteroviruses. PLOS Biology, 17 (6). e3000281. ISSN 1545-7885

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Abstract

Rhino- and enteroviruses are important human pathogens, against which no antivirals are available. The best-studied inhibitors are “capsid binders” that fit in a hydrophobic pocket of the viral capsid. Employing a new class of entero-/rhinovirus inhibitors and by means of cryo–electron microscopy (EM), followed by resistance selection and reverse genetics, we discovered a hitherto unknown druggable pocket that is formed by viral proteins VP1 and VP3 and that is conserved across entero-/rhinovirus species. We propose that these inhibitors stabilize a key region of the virion, thereby preventing the conformational expansion needed for viral RNA release. A medicinal chemistry effort resulted in the identification of analogues targeting this pocket with broad-spectrum activity against Coxsackieviruses B (CVBs) and compounds with activity against enteroviruses (EV) of groups C and D, and even rhinoviruses (RV). Our findings provide novel insights in the biology of the entry of entero-/rhinoviruses and open new avenues for the design of broad-spectrum antivirals against these pathogens.

Item Type: Article
Subjects: AP Academic Press > Biological Science
Depositing User: Unnamed user with email support@apacademicpress.com
Date Deposited: 11 Jan 2023 12:39
Last Modified: 25 Apr 2024 08:57
URI: http://info.openarchivespress.com/id/eprint/211

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