ArticleNucleic acids research2015
Discovery of an essential nucleotidylating activity associated with a newly delineated conserved domain in the RNA polymerase-containing protein of all nidoviruses.
Article in Nucleic acids research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 151 papers, 2 of them syntheses that pooled it.
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Who cites it
151 citing papers in PubMed, 2 syntheses or guidelines pooled it, 246 citations in OpenAlex.
- Time Series Analysis of SARS-CoV-2 Genomes and Correlations among Highly Prevalent Mutations.Microbiology spectrum · 2022Pooled it
- Update on the target structures of SARS-CoV-2: A systematic review.Indian journal of pharmacologyPooled it
- Identification of fidelity-determined residues of Porcine reproductive and respiratory syndrome virus through structural alignment.Virulence · 2026Article
- Structural and Mechanistic Perspectives on SARS-CoV-2 Nonstructural Protein 14-Mediated Cap Formation and Drug Discovery.Microorganisms · 2026Review
- Equine arteritis virus Nsp10 promotes MAVS proteasomal degradation via E3 ligases Smurf1/MARCH5.Journal of virology · 2026Article
- Heterodimerization of PRRSV replicase membrane proteins nsp2 and nsp3 regulates their cytoplasmic tail binding to viral RdRp domain for sgRNA synthesis.Journal of virology · 2026Article
- Fisetin as an Antiviral Agent Targeting the RNA-Dependent RNA Polymerase of SARS-CoV-2: Computational Prediction and In Vitro Experimental Validation.Microorganisms · 2025Article
- Polypeptide encoded by the -1 PRF signal of SARS-CoV-2 controls multiple enzymatic activities of the viral NiRAN domain.NAR molecular medicine · 2025Article
- Development of GFP-expressing infectious clones for PRRSV using TAR cloning for antiviral drug screening.Npj viruses · 2025Article
- Iron-sulfur clusters in SARS-CoV-2 exoribonuclease and methyltransferase complexes: relevance for viral genome proofreading and capping.Nature communications · 2025Article
- The mechanism for GTP-mediated RNA capping by the SARS-CoV-2 NiRAN domain remains unresolved.Cell · 2025Article
- Human coronaviruses: activation and antagonism of innate immune responses.Microbiology and molecular biology reviews : MMBR · 2025Review
- Intraspecific variation of the hedgehog arteriviruses, which may constitute a new genus in the subfamily Heroarterivirinae of the family Arteriviridae.Archives of virology · 2025Article
- Review
- Meeting report of the 37th International Conference on Antiviral Research in Gold Coast, Australia, May 20-24, 2024, organized by the International Society for Antiviral Research.Antiviral research · 2024Article
- A genus-specific nsp12 region impacts polymerase assembly in Alpha- and Gammacoronaviruses.bioRxiv : the preprint server for biology · 2024Article
- Point mutations at specific sites of the nsp12-nsp8 interface dramatically affect the RNA polymerization activity of SARS-CoV-2.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Despite the odds: formation of the SARS-CoV-2 methylation complex.Nucleic acids research · 2024Article
- Deep mining of the Sequence Read Archive reveals major genetic innovations in coronaviruses and other nidoviruses of aquatic vertebrates.PLoS pathogens · 2024Article
- SARS-CoV-2 biology and host interactions.Nature reviews. Microbiology · 2024Review
91 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
14 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
RNA viruses encode an RNA-dependent RNA polymerase (RdRp) that catalyzes the synthesis of their RNA(s). In the case of positive-stranded RNA viruses belonging to the order Nidovirales, the RdRp resides in a replicase subunit that is unusually large. Bioinformatics analysis of this non-structural protein has now revealed a nidoviral signature domain (genetic marker) that is N-terminally adjacent to the RdRp and has no apparent homologs elsewhere. Based on its conservation profile, this domain is proposed to have nucleotidylation activity. We used recombinant non-structural protein 9 of the arterivirus equine arteritis virus (EAV) and different biochemical assays, including irreversible labeling with a GTP analog followed by a proteomics analysis, to demonstrate the manganese-dependent covalent binding of guanosine and uridine phosphates to a lysine/histidine residue. Most likely this was the invariant lysine of the newly identified domain, named nidovirus RdRp-associated nucleotidyltransferase (NiRAN), whose substitution with alanine severely diminished the described binding. Furthermore, this mutation crippled EAV and prevented the replication of severe acute respiratory syndrome coronavirus (SARS-CoV) in cell culture, indicating that NiRAN is essential for nidoviruses. Potential functions supported by NiRAN may include nucleic acid ligation, mRNA capping and protein-primed RNA synthesis, possibilities that remain to be explored in future studies.
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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.