Evidence map›Paper›PMID 9705951›Full record

ArticleThe Journal of experimental medicine1998

A hypermutable insert in an immunoglobulin transgene contains hotspots of somatic mutation and sequences predicting highly stable structures in the RNA transcript.

U Storb, E L Klotz, J Hackett, K Kage, G Bozek, T E Martin

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.8field-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

18 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Transcriptional pausing and stalling causes multiple clustered mutations by human activation-induced deaminase.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2009
    Article
  7. Does antisense make sense of AID targeting?Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  8. AID to overcome the limitations of genomic information by introducing somatic DNA alterations.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2006
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Somatic hypermutation of immunoglobulin and non-immunoglobulin genes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2001
    Review
  14. Transcription, beta-like DNA polymerases and hypermutation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2001
    Review
  15. Evolution and the molecular basis of somatic hypermutation of antigen receptor genes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2001
    Review
  16. Hypermutation in bacteria and other cellular systems.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2001
    Review
  17. Article
  18. Hypermutation in derepressed operons of Escherichia coli K12.Proceedings of the National Academy of Sciences of the United States of America · 1999
    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 1 institution in 1 country.

U StorbDepartment of Molecular Genetics and Cell Biology, University of Chicago, Chicago, Illinois 60637, USA. stor@midway.uchicago.edu
E L Klotz
J Hackett
K Kage
G Bozek
T E Martin
University of Chicago · US

Funding

Molecular And Cellular Biology Training ProgramT32GM007183 · NIGMS · UNIVERSITY OF CHICAGO · PI GLICK, BENJAMIN S, RICE, PHOEBE A · 1985 to 2021
$23.9M
INTERDISCIPLINARY TRAINING PROGRAM IN IMMUNOLOGYT32AI007090 · NIAID · UNIVERSITY OF CHICAGO · PI Peter Aidan Savage · 1985 to 2026
$11.7M
MUTATION OF IG GENES IN MYELOMA TUMORSR01GM038649 · NIGMS · UNIVERSITY OF CHICAGO · PI STORB, URSULA B · 1987 to 2000
$171k
NIAID NIH HHS AI07090NIAID NIH HHS T32 AI007090NIGMS NIH HHS GM07183NIGMS NIH HHS GM38649NIGMS NIH HHS T32 GM007183
6 · The paper itself

Abstract

Immunoglobulin (Ig) genes expressed in mature B lymphocytes can undergo somatic hypermutation upon cell interaction with antigen and T cells. The mutation mechanism had previously been shown to depend upon transcription initiation, suggesting that a mutator factor was loaded on an RNA polymerase initiating at the promoter and causing mutations during elongation (Peters, A., and U. Storb. 1996. Immunity. 4:57-65). To further elucidate this process we have created an artificial substrate consisting of alternating EcoRV and PvuII restriction enzyme sites (EPS) located within the variable (V) region of an Ig transgene. This substrate can easily be assayed for the presence of mutations in DNA from transgenic lymphocytes by amplifying the EPS insert and determining by restriction enzyme digestion whether any of the restriction sites have been altered. Surprisingly, the EPS insert was mutated many times more frequently than the flanking Ig sequences. In addition there were striking differences in mutability of the different nucleotides within the restriction sites. The data favor a model of somatic hypermutation where the fine specificity of the mutations is determined by nucleotide sequence preferences of a mutator factor, and where the general site of mutagenesis is determined by the pausing of the RNA polymerase due to secondary structures within the nascent RNA.

Indexed as

Mutagenesis, InsertionalRNAAnimalsBase SequenceBinding SitesDeoxyribonucleases, Type II Site-SpecificDNA, ComplementaryImmunoglobulin Joining RegionImmunoglobulin kappa-ChainsImmunoglobulin Variable RegionMiceMice, TransgenicMolecular Sequence DataNucleic Acid ConformationTransgenesCAGCTG-specific type II deoxyribonucleasesDeoxyribonucleases, Type II Site-SpecificDNA, ComplementaryGATATC-specific type II deoxyribonucleasesImmunoglobulin Joining RegionImmunoglobulin kappa-ChainsImmunoglobulin Variable RegionRNA

Identifiers

PMID9705951
PMCPMC2213363
OpenAlexW2166030748

What OpenQuestion holds

Textmetadata
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.