ArticleGenes & development2009
AdnAB: a new DSB-resecting motor-nuclease from mycobacteria.
Article in Genes & development, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
54 citing papers in PubMed, 92 citations in OpenAlex.
- dUTPase modulates mycobacterial homologous recombination and interacts with the AdnAB helicase-nuclease.Nucleic acids research · 2026Article
- Structure of an initiation complex of mycobacterial helicase-nuclease AdnAB at a blunt double-strand break reveals local melting that engages the 3' tracking strand at the ratchet pawl of the helicase motor.Nucleic acids research · 2026Article
- The Role of the RecFOR Complex in Genome Stability.International journal of molecular sciences · 2025Review
- Genome editing outcomes reveal mycobacterial NucS participates in a short-patch repair of DNA mismatches.Nucleic acids research · 2024Article
- An additional proofreader contributes to DNA replication fidelity in mycobacteria.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Mycobacterium tuberculosis Ku Stimulates Multi-round DNA Unwinding by UvrD1 Monomers.Journal of molecular biology · 2024Article
- Genome Editing Outcomes Reveal Mycobacterial NucS Participates in a Short-Patch Repair of DNA Mismatches.bioRxiv : the preprint server for biology · 2023Article
- Mutation rates and adaptive variation among the clinically dominant clusters ofProceedings of the National Academy of Sciences of the United States of America · 2023Article
- DNA-Dependent Binding of Nargenicin to DnaE1 Inhibits Replication inACS infectious diseases · 2022Article
- Structure-activity relationships at a nucleobase-stacking tryptophan required for chemomechanical coupling in the DNA resecting motor-nuclease AdnAB.Nucleic acids research · 2022Article
- Single-molecule studies of helicases and translocases in prokaryotic genome-maintenance pathways.DNA repair · 2021Review
- Clutch mechanism of chemomechanical coupling in a DNA resecting motor nuclease.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Effective Use of Linear DNA in Cell-Free Expression Systems.Frontiers in bioengineering and biotechnology · 2021Review
- Evolutionary and Comparative Analysis of Bacterial Nonhomologous End Joining Repair.Genome biology and evolution · 2020Article
- Structures and single-molecule analysis of bacterial motor nuclease AdnAB illuminate the mechanism of DNA double-strand break resection.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- A matter of background: DNA repair pathways as a possible cause for the sparse distribution of CRISPR-Cas systems in bacteria.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Article
- Modeling DNA Unwinding by AddAB Helicase-Nuclease and Modulation by Chi Sequences: Comparison with AdnAB and RecBCD.Cellular and molecular bioengineering · 2019Article
- Structure of mycobacterial 3'-to-5' RNA:DNA helicase Lhr bound to a ssDNA tracking strand highlights distinctive features of a novel family of bacterial helicases.Nucleic acids research · 2018Article
- The DNA Repair Repertoire of Mycobacterium smegmatis FenA Includes the Incision of DNA 5' Flaps and the Removal of 5' Adenylylated Products of Aborted Nick Ligation.Journal of bacteriology · 2017Article
- Homologous recombination mediated by the mycobacterial AdnAB helicase without end resection by the AdnAB nucleases.Nucleic acids research · 2017Article
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4 authors at 1 institution in 1 country.
Funding
Abstract
The resection of DNA double-strand breaks (DSBs) in bacteria is a motor-driven process performed by a multisubunit helicase-nuclease complex: either an Escherichia coli-type RecBCD enzyme or a Bacillus-type AddAB enzyme. Here we identify mycobacterial AdnAB as the founder of a new family of heterodimeric helicase-nucleases with distinctive properties. The AdnA and AdnB subunits are each composed of an N-terminal UvrD-like motor domain and a C-terminal nuclease module. The AdnAB ATPase is triggered by dsDNA with free ends and the energy of ATP hydrolysis is coupled to DSB end resection by the AdnAB nuclease. The mycobacterial nonhomologous end-joining (NHEJ) protein Ku protects DSBs from resection by AdnAB. We find that AdnAB incises ssDNA by measuring the distance from the free 5' end to dictate the sites of cleavage, which are predominantly 5 or 6 nucleotides (nt) from the 5' end. The "molecular ruler" of AdnAB is regulated by ATP, which elicits an increase in ssDNA cleavage rate and a distal displacement of the cleavage sites 16-17 nt from the 5' terminus. AdnAB is a dual nuclease with a clear division of labor between the subunits. Mutations in the nuclease active site of the AdnB subunit ablate the ATP-inducible cleavages; the corresponding changes in AdnA abolish ATP-independent cleavage. Complete suppression of DSB end resection requires simultaneous mutation of both subunit nucleases. The nuclease-null AdnAB is a helicase that unwinds linear plasmid DNA without degrading the displaced single strands. Mutations of the phosphohydrolase active site of the AdnB subunit ablate DNA-dependent ATPase activity, DSB end resection, and ATP-inducible ssDNA cleavage; the equivalent mutations of the AdnA subunit have comparatively little effect. AdnAB is a novel signature of the Actinomycetales taxon. Mycobacteria are exceptional in that they encode both AdnAB and RecBCD, suggesting the existence of alternative end-resecting motor-nuclease complexes.
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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.