Evidence map›Paper›PMID 12897800›Full record

ArticleEMBO reports2003

Effect of CpG methylation on RAG1/RAG2 reactivity: implications of direct and indirect mechanisms for controlling V(D)J cleavage.

Hiroshi Nakase, Yousuke Takahama, Yoshiko Akamatsu

Open access · greenAbstract read
In one paragraph

Article in EMBO reports, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.7field-weighted citation impact, top 32% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
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  6. Article
  7. Article
  8. Review
  9. Autoreactive B cells and epigenetics.Clinical reviews in allergy & immunology · 2010
    Review
  10. Review
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 2 countries.

Hiroshi NakaseInstitute for Genome Research, University of Tokushima, Japan.
Yousuke Takahama
Yoshiko Akamatsu
Tokushima University · JPPDL BioPharma (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It has been suggested that DNA methylation/demethylation is involved in regulating V(D)J rearrangement. Although methylated DNA is thought to induce an inaccessible chromatin structure, it is unclear whether DNA methylation can directly control V(D)J recombination independently of chromatin structure. In this study, we tested whether DNA methylation directly affects the reactivity of the RAG1/RAG2 complex. Specific methylation within the heptamer of the recombination signal sequences (RSS) markedly reduced V(D)J cleavage without inhibiting RAG1/RAG2-DNA complex formation. By contrast, methylation at other positions around the RSS did not affect the reactivity of the RAG proteins. The presence of a methyl-CpG binding-domain protein inhibited the binding of the RAG1/RAG2 complex to all the methylated CpG sites that were tested. Our findings suggest that DNA methylation around the RSS may have a previously unexpected function in regulating V(D)J recombination by directly inhibiting V(D)J cleavage, in addition to its general function of inducing an inaccessible chromatin configuration.

Indexed as

DNA MethylationGene RearrangementAnimalsCell LineDinucleoside PhosphatesDNA-Binding ProteinsDNA FootprintingDNA NucleotidyltransferasesDNA PrimersGenes, ImmunoglobulinHomeodomain ProteinsHumansNuclear ProteinsPolymerase Chain ReactionReceptors, AntigenCpG dinucleotideDinucleoside PhosphatesDNA-Binding ProteinsDNA NucleotidyltransferasesDNA PrimersHomeodomain ProteinsNuclear ProteinsRAG-1 proteinRAG2 protein, humanReceptors, AntigenV(D)J recombination activating protein 2

Identifiers

PMID12897800
PMCPMC1326344
OpenAlexW2124754247

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.