Evidence map›Paper›PMID 19116266›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

A reappraisal of evidence for probabilistic models of allelic exclusion.

Benjamin Taylor, Bradley S Cobb, Ludovica Bruno, Zoe Webster, Amanda G Fisher, Matthias Merkenschlager

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Review
  3. Antigen receptor allelic exclusion: an update and reappraisal.Journal of immunology (Baltimore, Md. : 1950) · 2010
    Review
  4. Review
  5. Article
  6. 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

6 authors at 2 institutions in 2 countries.

Benjamin TaylorLymphocyte Development Group and ES Cell and Transgenics Facility, Medical Research Council Clinical Sciences Centre, Imperial College London, Du Cane Road, London W12 0NN, United Kingdom.
Bradley S Cobb
Ludovica Bruno
Zoe Webster
Amanda G Fisher
Matthias Merkenschlager
Nordic Lymphoma Group · DKMedical Research Council · GB

Funding

Medical Research Council MC_U120027516
6 · The paper itself

Abstract

B cell development requires the coordinated rearrangement of Ig heavy (IgH) and light chain loci (IgL). Most mature B cells express a single B cell receptor of unique specificity, and a central question in immunology concerns the mechanisms that prevent the productive rearrangement of >1 IgH and IgL allele per cell. Probabilistic models of allelic exclusion maintain that simultaneous rearrangement of both alleles is rare, because the likelihood of undergoing rearrangement is low for a given Ig allele. Strong support for this idea came from studies in which a GFP marker was inserted into the Igk locus. In this system, the probability of high-level germ-line transcription and subsequent locus rearrangement appeared to be low in pre-B cells. Readdressing the validity of GFP expression as a reporter for the level of germ-line transcription, we found a striking discordance between GFP transcript and protein levels at the pre-B cell stage, which is explained at least in part by the developmentally regulated usage of 2 alternative Igk-J germ-line promoters. These results question the validity of the kappa-GFP system as evidence for probabilistic models of allelic exclusion.

Indexed as

AllelesGene RearrangementModels, StatisticalAnimalsB-LymphocytesBone Marrow CellsCells, CulturedGreen Fluorescent ProteinsImmunoglobulin Heavy ChainsImmunoglobulin Light ChainsImmunoglobulinsMiceReceptors, Antigen, B-CellTranscription, GeneticGreen Fluorescent ProteinsIgKImmunoglobulin Heavy ChainsImmunoglobulin Light ChainsImmunoglobulinsReceptors, Antigen, B-Cell

Identifiers

PMID19116266
PMCPMC2626735
OpenAlexW1973405756

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.