Evidence map›Paper›PMID 15580273›Full record

ArticleNature immunology2005

Locus 'decontraction' and centromeric recruitment contribute to allelic exclusion of the immunoglobulin heavy-chain gene.

Esther Roldán, Martin Fuxa, Winnie Chong, Dolores Martinez, Maria Novatchkova, Meinrad Busslinger, Jane A Skok

Open access · greenAbstract read
In one paragraph

Article in Nature immunology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 128 papers.

0numbers the graph read from it
0cells of the map it votes in
128citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

128 citing papers in PubMed, 255 citations in OpenAlex.

  1. Article
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  9. The endogenousFrontiers in immunology · 2024
    Article
  10. Article
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  12. Contribution of the IGCR1 regulatory element and the 3'Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  13. Article
  14. Review
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  20. Genome folding through loop extrusion by SMC complexes.Nature reviews. Molecular cell biology · 2021
    Review

68 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 3 countries.

Esther RoldánDepartment of Immunology and Molecular Pathology, Division of Infection and Immunity, University College London, London W1T 4JF, UK.
Martin Fuxa
Winnie Chong
Dolores Martinez
Maria Novatchkova
Meinrad Busslinger
Jane A Skok
Research Institute of Molecular Pathology · ATUniversity College London · GBInstitute of Infection and Immunity · CA

Funding

Wellcome Trust 067387
6 · The paper itself

Abstract

Allelic exclusion of immunoglobulin genes ensures the expression of a single antibody molecule in B cells through mostly unknown mechanisms. Large-scale contraction of the immunoglobulin heavy-chain (Igh) locus facilitates rearrangements between Igh variable (V(H)) and diversity gene segments in pro-B cells. Here we show that these long-range interactions are mediated by 'looping' of individual Igh subdomains. The Igk locus also underwent contraction by looping in small pre-B and immature B cells, demonstrating that immunoglobulin loci are in a contracted state in rearranging cells. Successful Igh recombination induced the rapid reversal of locus contraction in response to pre-B cell receptor signaling, which physically separated the distal V(H) genes from the proximal Igh domain, thus preventing further rearrangements. In the absence of locus contraction, only the four most proximal V(H) genes escaped allelic exclusion in immature mu-transgenic B lymphocytes. Pre-B cell receptor signaling also led to rapid repositioning of one Igh allele to repressive centromeric domains in response to downregulation of interleukin 7 signaling. These data link both locus 'decontraction' and centromeric recruitment to the establishment of allelic exclusion at the Igh locus.

Indexed as

AllelesAnimalsGene Rearrangement, B-Lymphocyte, Heavy ChainImmunoglobulin Heavy ChainsImmunoglobulin Variable RegionMiceMice, TransgenicImmunoglobulin Heavy ChainsImmunoglobulin Variable Region

Identifiers

PMID15580273
PMCPMC1592471
OpenAlexW2042398661

What OpenQuestion holds

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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.