Evidence map›Paper›PMID 15486086›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2004

Differential regulation of histone acetylation and generation of mutations in switch regions is associated with Ig class switching.

Ziqiang Li, Zhonghui Luo, Matthew D Scharff

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

23 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
  2. Review
  3. 53BP1 Contributes toJournal of immunology (Baltimore, Md. : 1950) · 2017
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. AID and somatic hypermutation.Advances in immunology · 2010
    Review
  12. Article
  13. H3 trimethyl K9 and H3 acetyl K9 chromatin modifications are associated with class switch recombination.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  14. Analysis of intergenic transcription and histone modification across the human immunoglobulin heavy-chain locus.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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 1 country.

Ziqiang LiDepartment of Cell Biology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA.
Zhonghui Luo
Matthew D Scharff
Albert Einstein College of Medicine · USYeshiva University · US

Funding

SOMATIC MUTATION OF IG VARIABLE REGIONSR01CA072649 · NCI · YESHIVA UNIVERSITY · PI SCHARFF, MATTHEW D · 1997 to 2014
$5.0M
Mismatch repair in V region mutation and isotype switchingR01CA102705 · NCI · YESHIVA UNIVERSITY · PI SCHARFF, MATTHEW D · 2003 to 2013
$3.2M
MECHANISM OF ANTIBODY PROTECTION TO C NEOFORMANSR01AI043937 · NIAID · YESHIVA UNIVERSITY · PI SCHARFF, MATTHEW D · 1999 to 2003
$1.6M
NCI NIH HHS CA102705NCI NIH HHS CA72649NCI NIH HHS R01 CA072649NCI NIH HHS R01 CA102705NIAID NIH HHS AI43937NIAID NIH HHS R01 AI043937
6 · The paper itself

Abstract

Class switch recombination (CSR) allows B cells to make effective protective antibodies. CSR involves the replacement of the mu constant region with one of the downstream constant regions by recombination between the donor and recipient switch (S) regions. Although histone H3 hyperacetylation in recipient S regions was recently reported to coincide with CSR, the relative histone H3 and H4 acetylation status of the donor and recipient S regions and the relationship between the generation of mutations and histone hyperacetylation in S regions have not been addressed. Here we report that histone H3 and H4 were constitutively hyperacetylated in the donor Smu region before and after different mitogen and cytokine treatments. We observed an increased frequency of mutations in hyperacetylated Sgamma DNA segments immunoprecipitated with anti-acetyl histone antibodies. Furthermore, time course experiments revealed that the pattern of association of RNA polymerase II with S regions was much like that of H3 hyperacetylation but not always like that of H4 hyperacetylation. Collectively, our data suggest that H3 and H4 histone hyperacetylation in different S regions is regulated differently, that RNA polymerase II distribution and H3 hyperacetylation reflect the transcriptional activity of a given S region, and that transcription, hyperacetylation, and mutation are not sufficient to guarantee CSR. These findings support the notion that there are additional modifications and/or factors involved in the complex process of CSR.

Indexed as

Immunoglobulin Switch RegionMutationAcetylationAnimalsBase SequenceDNADNA PrimersHistonesImmunoprecipitationMiceDNADNA PrimersHistones

Identifiers

PMID15486086
PMCPMC524454
OpenAlexW2029209821

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.