ArticleNature communications2024
Regulatory sequence-based discovery of anti-defense genes in archaeal viruses.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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Who cites it
7 citing papers in PubMed.
- An expanded realm of anti-CRISPR-associated proteins and regulatory mechanisms.Nucleic acids research · 2026Article
- Genomic landscape of 340 virulent Acinetobacter bacteriophages reveals anti-CRISPR-enriched candidates for therapeutic prioritization.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026Article
- Diversity and evolution of archaeal immune strategies.Nucleic acids research · 2026Article
- Unraveling the diversity, function, and virus-host interactions of archaeal proviruses.ISME communications · 2026Article
- Article
- Article
- Conformational change as a mechanism for toxin activation in bacterial toxin-antitoxin systems.Journal of virology · 2024Review
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
In silico identification of viral anti-CRISPR proteins (Acrs) has relied largely on the guilt-by-association method using known Acrs or anti-CRISPR associated proteins (Acas) as the bait. However, the low number and limited spread of the characterized archaeal Acrs and Aca hinders our ability to identify Acrs using guilt-by-association. Here, based on the observation that the few characterized archaeal Acrs and Aca are transcribed immediately post viral infection, we hypothesize that these genes, and many other unidentified anti-defense genes (ADG), are under the control of conserved regulatory sequences including a strong promoter, which can be used to predict anti-defense genes in archaeal viruses. Using this consensus sequence based method, we identify 354 potential ADGs in 57 archaeal viruses and 6 metagenome-assembled genomes. Experimental validation identified a CRISPR subtype I-A inhibitor and the first virally encoded inhibitor of an archaeal toxin-antitoxin based immune system. We also identify regulatory proteins potentially akin to Acas that can facilitate further identification of ADGs combined with the guilt-by-association approach. These results demonstrate the potential of regulatory sequence analysis for extensive identification of ADGs in viruses of archaea and bacteria.
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Registered trials
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