ArticleNucleic acids research2021
The CRISPR ancillary effector Can2 is a dual-specificity nuclease potentiating type III CRISPR defence.
Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.
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Who cites it
48 citing papers in PubMed, 83 citations in OpenAlex.
- Transcriptome and metabolome analyses reveal insights into the response of Morchella sextelata mycelia to lethal heat stress.Archives of microbiology · 2026Article
- The CRISPR ring nuclease Csx15 oligomerises on cyclic nucleotide binding to regulate antiviral defence.The Biochemical journal · 2026Article
- Structural and functional insights into the adenosine deaminase of the type III-B CRISPR-Cas system.Nucleic acids research · 2026Article
- Structural plasticity enables broad cAn binding and dual activation of CRISPR-associated ribonuclease Cdn1.Nucleic acids research · 2026Article
- Manipulation of the nucleotide pool in human, bacterial and plant immunity.Nature reviews. Immunology · 2026Review
- Structure and mechanism of the broad spectrum CRISPR-associated ring nuclease Crn4.Nature communications · 2025Article
- The twist-and-squeeze activation of CARF-fused adenosine deaminase by cyclic oligoadenylates.The EMBO journal · 2025Article
- Argonaute-HNH filaments triggered by invader DNA confer bacterial immunity.Nature communications · 2025Article
- CARF-HAD phosphatase effectors provide immunity during the type III-A CRISPR-Cas response.Nucleic acids research · 2025Article
- Substrate-induced remodeling of protein disordered loops activates Csm DNases.Nucleic acids research · 2025Article
- Cap1 forms a cyclic tetra-adenylate-induced membrane pore during the type III-A CRISPR-Cas immune response.bioRxiv : the preprint server for biology · 2025Article
- A viral SAVED protein with ring nuclease activity degrades the CRISPR second messenger cA4.The Biochemical journal · 2025Article
- Diversity and abundance of ring nucleases in type III CRISPR-Cas loci.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- SAM-AMP lyases in type III CRISPR defence.Nucleic acids research · 2025Article
- Cat1 forms filament networks to degrade NADScience (New York, N.Y.) · 2025Article
- Nucleic acid recognition during prokaryotic immunity.Molecular cell · 2025Review
- The CRISPR-associated adenosine deaminase Cad1 converts ATP to ITP to provide antiviral immunity.Cell · 2024Article
- Cas10 relieves host growth arrest to facilitate spacer retention during type III-A CRISPR-Cas immunity.Cell host & microbe · 2024Article
- Structural insight into the Csx1-Crn2 fusion self-limiting ribonuclease of type III CRISPR system.Nucleic acids research · 2024Article
- Bioinformatic analysis of type III CRISPR systems reveals key properties and new effector families.Nucleic acids research · 2024Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
Cells and organisms have a wide range of mechanisms to defend against infection by viruses and other mobile genetic elements (MGE). Type III CRISPR systems detect foreign RNA and typically generate cyclic oligoadenylate (cOA) second messengers that bind to ancillary proteins with CARF (CRISPR associated Rossman fold) domains. This results in the activation of fused effector domains for antiviral defence. The best characterised CARF family effectors are the Csm6/Csx1 ribonucleases and DNA nickase Can1. Here we investigate a widely distributed CARF family effector with a nuclease domain, which we name Can2 (CRISPR ancillary nuclease 2). Can2 is activated by cyclic tetra-adenylate (cA4) and displays both DNase and RNase activity, providing effective immunity against plasmid transformation and bacteriophage infection in Escherichia coli. The structure of Can2 in complex with cA4 suggests a mechanism for the cA4-mediated activation of the enzyme, whereby an active site cleft is exposed on binding the activator. These findings extend our understanding of type III CRISPR cOA signalling and effector function.
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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.