Evidence map›Paper›PMID 19887393›Full record

ArticleThe Journal of experimental medicine2009

Switch recombination and somatic hypermutation are controlled by the heavy chain 3' enhancer region.

Wesley A Dunnick, John T Collins, Jian Shi, Gerwin Westfield, Clinton Fontaine, Paul Hakimpour, F Nina Papavasiliou

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

43 citing papers in PubMed, 63 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. The Role of DNA Repair in Genomic Instability of Multiple Myeloma.International journal of molecular sciences · 2022
    Review
  5. Article
  6. Article
  7. Current insights into the mechanism of mammalian immunoglobulin class switch recombination.Critical reviews in biochemistry and molecular biology · 2019
    Review
  8. 3'Oncotarget · 2018
    Article
  9. Oncotarget · 2018
    Article
  10. Article
  11. Article
  12. Article
  13. Class-Switch Recombination in the Absence of the IgH 3' Regulatory Region.Journal of immunology (Baltimore, Md. : 1950) · 2016
    Article
  14. Sequential activation and distinct functions for distal and proximal modules within the IgH 3' regulatory region.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
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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

7 authors at 2 institutions in 1 country.

Wesley A DunnickDepartment of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48103, USA.
John T Collins
Jian Shi
Gerwin Westfield
Clinton Fontaine
Paul Hakimpour
F Nina Papavasiliou
University of Michigan–Ann Arbor · USRockefeller University · US

Funding

XenograftP30CA046592 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI THEODORE S LAWRENCE · 1988 to 2026
$178.2M
The Regulation of Somatic HypermutationR01CA098495 · NCI · ROCKEFELLER UNIVERSITY · PI PAPAVASILIOU, F. NINA · 2003 to 2012
$2.5M
DNA sequences involved in the heavy chain switchR01AI076057 · NIAID · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI DUNNICK, WESLEY A. · 2007 to 2011
$1.9M
NCI NIH HHS CA098495NCI NIH HHS CA46592NCI NIH HHS P30 CA046592NCI NIH HHS R01 CA098495NIAID NIH HHS AI076057NIAID NIH HHS R01 AI076057
6 · The paper itself

Abstract

Both class switch recombination (CSR) and somatic hypermutation (SHM) require transcription and the trans-acting factor activation-induced cytidine deaminase (AID), and must be up-regulated during antigen-dependent differentiation of B lymphocytes. To test the role of the heavy chain 3' enhancers in both CSR and SHM, we used a BAC transgene of the entire heavy chain constant region locus. Using Cre-loxP recombination to delete a 28-kb region that contains the four known 3' heavy chain enhancers, we isolated lines of BAC transgenic mice with an intact heavy chain locus and paired lines in the same chromosomal insertion site lacking the 3' enhancers. Intact heavy chain transgenes undergo CSR to all heavy chain genes and mutate their transgenic VDJ exon. In paired transgenes lacking the 3' enhancer region, CSR to most heavy chain genes is reduced to approximately 1% of the levels for intact heavy chain loci; SHM is also reduced. Finally, we find that in B cells with a transgene lacking the 3' enhancers, interchromosomal recombination between the transgenic VDJ exon and the endogenous heavy chain C genes is more easily detected than CSR within the transgene.

Indexed as

3' Untranslated RegionsAnimalsB-LymphocytesChickensCytidine DeaminaseEnhancer Elements, GeneticImmunoglobulin Heavy ChainsIntegrasesMiceMice, TransgenicQuantitative Trait LociRecombination, GeneticSequence DeletionSomatic Hypermutation, ImmunoglobulinTranscription, GeneticTransgenes3' Untranslated RegionsCre recombinaseCytidine DeaminaseImmunoglobulin Heavy ChainsIntegrases

Identifiers

PMID19887393
PMCPMC2806627
OpenAlexW2114930786

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.