ArticleJournal of virology2021
The SARS-CoV-2 Conserved Macrodomain Is a Mono-ADP-Ribosylhydrolase.
Article in Journal of virology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers.
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Who cites it
96 citing papers in PubMed, 138 citations in OpenAlex.
- Cellular engagement of the SARS-CoV-2 macrodomain by GS-441524 and enhancedRSC chemical biology · 2026Article
- Design, structure-based optimization and antiviral evaluation of potent inhibitors for the macrodomain Mac1 of SARS-CoV-2.Nature communications · 2026Article
- X-ray Crystallography-Guided Design and Synthesis of Cyclopentyl Heteroaryl Carboxylic Acid-Based Inhibitors of the SARS-CoV-2 Nsp3 Macrodomain (Mac1).Journal of medicinal chemistry · 2026Article
- Interactomics of SARS-CoV-2 Macrodomain 1 Reveals Putative Clients of ADP-Ribosyl Hydrolase Activity.Viruses · 2026Article
- Screening assay to monitor mono-ADP-ribosylhydrolase activity of viral macrodomains in cells.Communications biology · 2026Article
- Rewriting the viral script: post-translational modifications orchestrating SARS-CoV-2 pathogenesis and immune evasion.Frontiers in microbiology · 2026Review
- SARS-CoV-2-host and interactions: the dual roles of E3 ubiquitin ligases and ubiquitin-like modification mechanisms in viral infection.Frontiers in immunology · 2026Review
- Interactomics of SARS-CoV-2 Macrodomain 1 Reveals Putative Clients of ADP-ribosyl Hydrolase Activity.bioRxiv : the preprint server for biology · 2025Article
- Article
- Macrodomain ADP-ribose binding but not ADP-ribosylhydrolase activity is critical for chikungunya virus infection ofbioRxiv : the preprint server for biology · 2025Article
- Structure-based discovery of inhibitors of Mac1 domain of nonstructural protein-3 of SARS-CoV-2 by machine learning-augmented screening of chemical space.bioRxiv : the preprint server for biology · 2025Article
- Mutations differentially affecting the coronavirus Mac1 ADP-ribose binding and hydrolysis activities indicate that it promotes multiple stages of the viral replication cycle.Journal of virology · 2025Article
- Structural and functional analyses of SARS-CoV-2 Nsp3 and its specific interactions with the 5' UTR of the viral genome.Microbiology spectrum · 2025Article
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- Article
- Derivatives of MOPS: promising scaffolds for SARS coronaviruses Macro domain-targeted inhibition.The FEBS journal · 2025Article
- Interferon-induced PARP14-mediated ADP-ribosylation in p62 bodies requires the ubiquitin-proteasome system.The EMBO journal · 2025Article
- Recombinant infectious bronchitis virus containing mutations in non-structural proteins 10, 14, 15, and 16 and within the macrodomain provides complete protection against homologous challenge.Journal of virology · 2025Article
- Comparative Interactome Profiling of Nonstructural Protein 3 Across SARS-CoV-2 Variants Emerged During the COVID-19 Pandemic.Viruses · 2025Article
- Interferon-induced ADP-ribosylation: technical developments driving ICAB discovery.Bioscience reports · 2025Review
36 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
13 authors at 3 institutions in 2 countries.
Funding
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and other SARS-related CoVs encode 3 tandem macrodomains within nonstructural protein 3 (nsp3). The first macrodomain, Mac1, is conserved throughout CoVs and binds to and hydrolyzes mono-ADP-ribose (MAR) from target proteins. Mac1 likely counters host-mediated antiviral ADP-ribosylation, a posttranslational modification that is part of the host response to viral infections. Mac1 is essential for pathogenesis in multiple animal models of CoV infection, implicating it as a virulence factor and potential therapeutic target. Here, we report the crystal structure of SARS-CoV-2 Mac1 in complex with ADP-ribose. SARS-CoV-2, SARS-CoV, and Middle East respiratory syndrome coronavirus (MERS-CoV) Mac1 domains exhibit similar structural folds, and all 3 proteins bound to ADP-ribose with affinities in the low micromolar range. Importantly, using ADP-ribose-detecting binding reagents in both a gel-based assay and novel enzyme-linked immunosorbent assays (ELISAs), we demonstrated de-MARylating activity for all 3 CoV Mac1 proteins, with the SARS-CoV-2 Mac1 protein leading to a more rapid loss of substrate than the others. In addition, none of these enzymes could hydrolyze poly-ADP-ribose. We conclude that the SARS-CoV-2 and other CoV Mac1 proteins are MAR-hydrolases with similar functions, indicating that compounds targeting CoV Mac1 proteins may have broad anti-CoV activity.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.