Evidence map›Paper›PMID 18292225›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Antisense transcripts from immunoglobulin heavy-chain locus V(D)J and switch regions.

Thomas Perlot, Gang Li, Frederick W Alt

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing 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

42 citing papers in PubMed, 63 citations in OpenAlex.

  1. Rare Transcripts Quantification by Strand-Specific RT-qPCR.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  2. Article
  3. The IgHFrontiers in immunology · 2023
    Article
  4. Promoter Proximity Defines Mutation Window for VJournal of immunology (Baltimore, Md. : 1950) · 2022
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 2 countries.

Thomas PerlotThe Howard Hughes Medical Institute, The Children's Hospital, Immune Disease Institute, and Department of Genetics, Harvard Medical School, 1 Blackfan Circle, Boston, MA 02115, USA.
Gang Li
Frederick W Alt
Howard Hughes Medical Institute · US

Funding

The Role of BCL-6 in Berminal Center FormationP01CA092625 · NCI · DANA-FARBER CANCER INSTITUTE · PI SHIPP, MARGARET A · 2001 to 2011
$32.9M
Transcriptional Regulation of the Allergic ResponseP01AI031541 · NIAID · CHILDREN'S HOSPITAL BOSTON · PI GEHA, RAIF SALIM · 1999 to 2007
$8.0M
Howard Hughes Medical InstituteNCI NIH HHS P01 CA092625NCI NIH HHS P01CA092625-05NIAID NIH HHS 2P01AI031541-15NIAID NIH HHS P01 AI031541
6 · The paper itself

Abstract

Activation-induced cytosine deaminase (AID) is essential for both somatic hypermutation (SHM) and class switch recombination (CSR), two processes involved in antibody diversification. Previously, various groups showed both in vitro and in vivo that AID initiates SHM and CSR by deaminating cytosines in DNA in a transcription-dependent manner. Although in vivo both DNA strands are equally targeted by AID, many in vitro and bacterial experiments found that AID almost exclusively targets the nontemplate strand of a transcribed substrate. Here, we report the detection of antisense transcripts in assembled Ig heavy chain (IgH) variable region exons and their immediate downstream region, as well as in switch regions, sequences that, respectively, are targets for SHM and CSR in vivo. In contrast, we did not detect antisense transcripts from the Cmu constant region exons, which lie between the IgH variable region exons and downstream S regions and which are not normally an AID target. Expression of the antisense variable region/flanking region and the S-region transcripts were found in all lymphocytes that transcribe these sequences in the sense direction. Steady-state levels of antisense transcripts appeared very low, and start sites potentially appeared heterogeneous. We discuss the potential implications of antisense IgH locus transcription for AID targeting or other processes.

Indexed as

Genes, Immunoglobulin Heavy ChainAnimalsBase SequenceGene Expression RegulationImmunoglobulin Class SwitchingImmunoglobulin Heavy ChainsImmunoglobulin Variable RegionIntronsMiceMolecular Sequence DataRNA, AntisenseRNA, MessengerTranscription, GeneticTranscription Initiation SiteVDJ ExonsImmunoglobulin Heavy ChainsImmunoglobulin Variable RegionRNA, AntisenseRNA, Messenger

Identifiers

PMID18292225
PMCPMC2268805
OpenAlexW1982243668

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.