ArticlePLoS genetics2012
Negative supercoiling creates single-stranded patches of DNA that are substrates for AID-mediated mutagenesis.
Article in PLoS genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
35 citing papers in PubMed, 66 citations in OpenAlex.
- R-loop disruption triggers irreversible topoisomerase 1-DNA cleavage complex formation during AID-dependent IgH gene diversification.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- RNA 2'-O-methylation promotes persistent R-loop formation and AID-mediated IgH class switch recombination.BMC biology · 2024Article
- Interpretable deep learning reveals the role of an E-box motif in suppressing somatic hypermutation of AGCT motifs within human immunoglobulin variable regions.Frontiers in immunology · 2024Article
- Senataxin and RNase H2 act redundantly to suppress genome instability during class switch recombination.eLife · 2022Article
- Human activation-induced deaminase lacks strong replicative strand bias or preference for cytosines in hairpin loops.Nucleic acids research · 2022Article
- Ig Enhancers Increase RNA Polymerase II Stalling at Somatic Hypermutation Target Sequences.Journal of immunology (Baltimore, Md. : 1950) · 2022Article
- The role of HIRA-dependent H3.3 deposition and its modifications in the somatic hypermutation of immunoglobulin variable regions.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- A Bayesian model based computational analysis of the relationship between bisulfite accessible single-stranded DNA in chromatin and somatic hypermutation of immunoglobulin genes.PLoS computational biology · 2021Article
- Article
- Role of Dot1L and H3K79 methylation in regulating somatic hypermutation of immunoglobulin genes.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- The Role of RNA in DNA Breaks, Repair and Chromosomal Rearrangements.Biomolecules · 2021Review
- Characterization of DNA G-Quadruplex Structures in Human Immunoglobulin Heavy Variable (IGHV) Genes.Frontiers in immunology · 2021Article
- AID in Antibody Diversification: There and Back Again.Trends in immunology · 2020Review
- DNA:RNA hybrid G-quadruplex formation upstream of transcription start site.Scientific reports · 2020Article
- Replication of G Quadruplex DNA.Genes · 2019Review
- Transcriptional Response ofFrontiers in microbiology · 2019Article
- RNA Helicase DDX1 Converts RNA G-Quadruplex Structures into R-Loops to Promote IgH Class Switch Recombination.Molecular cell · 2018Article
- JMolecular immunology · 2018Article
- Genetic instability associated with loop or stem-loop structures within transcription units can be independent of nucleotide excision repair.Nucleic acids research · 2018Article
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 2 countries.
Funding
Abstract
Antibody diversification necessitates targeted mutation of regions within the immunoglobulin locus by activation-induced cytidine deaminase (AID). While AID is known to act on single-stranded DNA (ssDNA), the source, structure, and distribution of these substrates in vivo remain unclear. Using the technique of in situ bisulfite treatment, we characterized these substrates-which we found to be unique to actively transcribed genes-as short ssDNA regions, that are equally distributed on both DNA strands. We found that the frequencies of these ssDNA patches act as accurate predictors of AID activity at reporter genes in hypermutating and class switching B cells as well as in Escherichia coli. Importantly, these ssDNA patches rely on transcription, and we report that transcription-induced negative supercoiling enhances both ssDNA tract formation and AID mutagenesis. In addition, RNaseH1 expression does not impact the formation of these ssDNA tracts indicating that these structures are distinct from R-loops. These data emphasize the notion that these transcription-generated ssDNA tracts are one of many in vivo substrates for AID.
Indexed as
Identifiers
What OpenQuestion holds
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.