Evidence map›Paper›PMID 10224284›Full record

ArticleThe Journal of experimental medicine1999

A targeted deletion of a region upstream from the Jkappa cluster impairs kappa chain rearrangement in cis in mice and in the 103/bcl2 cell line.

L Cocea, A De Smet, M Saghatchian, S Fillatreau, L Ferradini, S Schurmans, J C Weill, C A Reynaud

Open access · greenAbstract read
In one paragraph

Article in The Journal of experimental medicine, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

12 citing papers in PubMed, 31 citations in OpenAlex.

  1. Long-Range Regulation of V(D)J Recombination.Advances in immunology · 2015
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Biallelic, ubiquitous transcription from the distal germline Ig{kappa} locus promoter during B cell development.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  9. A reappraisal of evidence for probabilistic models of allelic exclusion.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  10. Article
  11. Article
  12. Article
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

8 authors at 1 institution in 1 country.

L CoceaInstitut National de la Santé et de la Recherche Médicale, Unité 373, Faculté de Médecine Necker, Paris, France. cocea@necker.fr
A De Smet
M Saghatchian
S Fillatreau
L Ferradini
S Schurmans
J C Weill
C A Reynaud
Université Libre de Bruxelles · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have shown previously that a mutation of the KI-KII site immediately 5' to J(kappa)1 on the mouse immunoglobulin light chain kappa locus reduces the rearrangement level in cis, although it does not affect transcription. Here we deleted by homologous recombination in mouse embryonic stem cells a 4-kb DNA fragment, located immediately upstream of the KI-KII element, which contains the promoter of the long germline transcript. Analysis of gene-targeted heterozygous mouse splenic B cells showed a strong decrease in rearrangement for the allele bearing the deletion. When both the KI-KII mutation and the 4-kb deletion were present on the same allele, the overall reduction in rearrangement was stronger than with the 4-kb deletion alone underlying the role of these two elements in the regulation of rearrangement. The same deletion was performed by homologous recombination on one allele of the rearrangement-inducible mouse 103/bcl2-hygro(R) pre-B cell line, and resulted in a similar reduction in the induction of rearrangement of the mutated allele. This result validates this cell line as an in vitro model for studying the incidence of gene-targeted modifications of the kappa locus on the regulation of rearrangement.

Indexed as

B-LymphocytesGene Rearrangement, B-LymphocyteSequence DeletionAllelesAnimalsCell LineGene TargetingGerm CellsImmunoglobulin Joining RegionImmunoglobulin kappa-ChainsMiceMutagenesisTranscription, GeneticImmunoglobulin Joining RegionImmunoglobulin kappa-Chains

Identifiers

PMID10224284
PMCPMC2193061
OpenAlexW2155093867

What OpenQuestion holds

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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.