Evidence map›Paper›PMID 2505260›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1989

Early rearrangements of genes encoding murine immunoglobulin kappa chains, unlike genes encoding heavy chains, use variable gene segments dispersed throughout the locus.

A M Lawler, J F Kearney, M Kuehl, P J Gearhart

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1989. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
7.0field-weighted citation impact, top 3% 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

20 citing papers in PubMed, 56 citations in OpenAlex.

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  19. Stochastic pairing of heavy-chain and kappa light-chain variable gene families occurs in polyclonally activated B cells.Proceedings of the National Academy of Sciences of the United States of America · 1990
    Article
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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

4 authors at 1 institution in 1 country.

A M LawlerDepartment of Biochemistry, Johns Hopkins University School of Hygiene, Baltimore, MD 21205.
J F Kearney
M Kuehl
P J Gearhart
Johns Hopkins University · US

Funding

Regulation of B cell Clonal Diversity and Its Role in DiseaseR01AI014782 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI KEARNEY, JOHN FRANKLIN · 1985 to 2020
$7.1M
REARRANGEMENT OF VK GENES DURING ONTOGENYR01GM042975 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI GEARHART, PATRICIA J. · 1989 to 1995
–
NIAID NIH HHS R01 AI014782NIGMS NIH HHS GM42975
6 · The paper itself

Abstract

Immunoglobulin heavy-chain variable region (TH) gene segments located closest to the joining (JH) gene segments are preferentially rearranged during ontogeny, indicating that chromosomal position influences the frequency of rearrangement. In addition, certain VH gene segments are repeatedly rearranged, suggesting that the DNA sequence or structure surrounding these segments may increase the probability of rearrangement. To determine whether there is similar based rearrangement of kappa variable (V kappa) gene segments, 25 rearrangements were sequenced from murine fetal and neonatal B-cell hybridomas and from subclones of a pre-B cell line that rearranged V kappa genes during in vitro culture. Four gene segments were isolated twice and one gene segment was isolated three times, suggesting that the process that targets individual variable gene segments for repeated rearrangement operates on both the VH and V kappa loci. Based on a current map of the V kappa locus, the rearranged gene segments belong to nine families that are dispersed throughout the locus. Thus, in these cell types, V kappa rearrangements use germ-line gene segments located across the entire locus, whereas the corresponding VH rearrangements use gene segments proximal to the JH gene segments. Heterogeneity of V kappa rearrangements would add diversity to the biased pool of VH rearrangements, producing a broad repertoire of antibodies early in development.

Indexed as

Gene Rearrangement, B-LymphocyteGenes, ImmunoglobulinAmino Acid SequenceAnimalsBase SequenceCell LineFetusImmunoglobulin Heavy ChainsImmunoglobulin Joining RegionImmunoglobulin kappa-ChainsImmunoglobulin Variable RegionMiceMice, Inbred BALB CMolecular Sequence DataMultigene FamilyPlasmacytomaImmunoglobulin Heavy ChainsImmunoglobulin Joining RegionImmunoglobulin kappa-ChainsImmunoglobulin Variable Region

Identifiers

PMID2505260
PMCPMC297922
OpenAlexW1981102229

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.