Evidence map›Paper›PMID 18370922›Full record

ReviewAnnual review of immunology2008

Mechanism and regulation of class switch recombination.

Janet Stavnezer, Jeroen E J Guikema, Carol E Schrader

Open access · greenAbstract readReview
In one paragraph

Review in Annual review of immunology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 604 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
604citing papers in PubMed, 2 pooled it
25.9field-weighted citation impact, top 1% 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

604 citing papers in PubMed, 2 syntheses or guidelines pooled it, 1,083 citations in OpenAlex.

  1. Mucosal immune response in biology, disease prevention and treatment.Signal transduction and targeted therapy · 2025
    Pooled it
  2. Pooled it
  3. Article
  4. Immunoglobulin a Deficiency in Coeliac Disease: A Scoping Review.United European gastroenterology journal · 2026
    Article
  5. Review
  6. A tonsil organoid model reveals Epstein-Barr virus-infected germinal center B cell states during primary infection.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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544 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Janet StavnezerDepartment of Molecular Genetics and Microbiology, Program in Immunology and Virology, University of Massachusetts Medical School, Worcester, Massachusetts 01655-012, USA. Janet.Stavnezer@umassmed.edu
Jeroen E J Guikema
Carol E Schrader
University of Massachusetts Chan Medical School · US

Funding

MOLECULAR BASIS OF IMMUNOGLOBULIN HEAVY CHAIN SWITCHR01AI023283 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI SCHRADER, CAROL E · 1985 to 2014
$5.8M
DNA Breaks in Class Switch RecombinationR01AI065639 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI SCHRADER, CAROL E · 2005 to 2009
$1.3M
DNA repair and lg class switchingR01AI063026 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI STAVNEZER, JANET M. · 2005 to 2007
$949k
Isotype specific regulation of lg class switchingR21AI062738 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI STAVNEZER, JANET M. · 2005 to 2006
$602k
NIAID NIH HHS R01 AI023283NIAID NIH HHS R01 AI063026NIAID NIH HHS R01 AI065639NIAID NIH HHS R01AI23283NIAID NIH HHS R01 AI63026NIAID NIH HHS R01 AI65639NIAID NIH HHS R21 AI062738NIAID NIH HHS R21AI62738
6 · The paper itself

Abstract

Antibody class switching occurs in mature B cells in response to antigen stimulation and costimulatory signals. It occurs by a unique type of intrachromosomal deletional recombination within special G-rich tandem repeated DNA sequences [called switch, or S, regions located upstream of each of the heavy chain constant (C(H)) region genes, except Cdelta]. The recombination is initiated by the B cell-specific activation-induced cytidine deaminase (AID), which deaminates cytosines in both the donor and acceptor S regions. AID activity converts several dC bases to dU bases in each S region, and the dU bases are then excised by the uracil DNA glycosylase UNG; the resulting abasic sites are nicked by apurinic/apyrimidinic endonuclease (APE). AID attacks both strands of transcriptionally active S regions, but how transcription promotes AID targeting is not entirely clear. Mismatch repair proteins are then involved in converting the resulting single-strand DNA breaks to double-strand breaks with DNA ends appropriate for end-joining recombination. Proteins required for the subsequent S-S recombination include DNA-PK, ATM, Mre11-Rad50-Nbs1, gammaH2AX, 53BP1, Mdc1, and XRCC4-ligase IV. These proteins are important for faithful joining of S regions, and in their absence aberrant recombination and chromosomal translocations involving S regions occur.

Indexed as

Recombination, GeneticAICDA (Activation-Induced Cytidine Deaminase)AnimalsCytidine DeaminaseGerminal CenterHumansImmunoglobulin Class SwitchingImmunoglobulin IsotypesModels, GeneticAICDA (Activation-Induced Cytidine Deaminase)Cytidine DeaminaseImmunoglobulin Isotypes

Identifiers

PMID18370922
PMCPMC2707252
OpenAlexW2154841949

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.