Banhi Biswas, Junlin Zhuo, Jürgen Bosch, Hien Vu, Lorencia Pak, Rameez Raja, Anuradha Roy, Alessandro Panattoni, Michal Maryska, Petr Slavik, Kryštof Šigut, Anthony R Fehr, Rachy Abraham, Barbara S Slusher, Takashi Tsukamoto, Anthony K L Leung
{"title":"Cellular engagement of the SARS-CoV-2 macrodomain by GS-441524 and enhanced <i>in vitro</i> inhibition by its diphosphorylated metabolite.","authors":"Banhi Biswas, Junlin Zhuo, Jürgen Bosch, Hien Vu, Lorencia Pak, Rameez Raja, Anuradha Roy, Alessandro Panattoni, Michal Maryska, Petr Slavik, Kryštof Šigut, Anthony R Fehr, Rachy Abraham, Barbara S Slusher, Takashi Tsukamoto, Anthony K L Leung","doi":"10.1039/d6cb00139d","DOIUrl":null,"url":null,"abstract":"<p><p>Coronavirus macrodomains (Mac1) counter host immunity by removing ADP-ribose. GS-441524, the parent nucleoside of remdesivir, inhibits SARS-CoV-2 Mac1, but its active metabolite and cellular engagement were undefined. GS-441524 selectively inhibits SARS-CoV-2 Mac1 over human MacroD2, engages Mac1 in cells but not MERS-CoV Mac1, with its diphosphate metabolite being most potent.</p>","PeriodicalId":40691,"journal":{"name":"RSC Chemical Biology","volume":" ","pages":"1559-1567"},"PeriodicalIF":3.9000,"publicationDate":"2026-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13305366/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"RSC Chemical Biology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/d6cb00139d","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/8/5 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Coronavirus macrodomains (Mac1) counter host immunity by removing ADP-ribose. GS-441524, the parent nucleoside of remdesivir, inhibits SARS-CoV-2 Mac1, but its active metabolite and cellular engagement were undefined. GS-441524 selectively inhibits SARS-CoV-2 Mac1 over human MacroD2, engages Mac1 in cells but not MERS-CoV Mac1, with its diphosphate metabolite being most potent.