Cited by 420DNA Repair MechanismsT-cell and B-cell ImmunologyRNA regulation and disease

DNA polymerase η is an A-T mutator in somatic hypermutation of immunoglobulin variable genes

Zeng, Xianmin, Winter, David B., Kasmer, Cynthia, Kraemer, Kenneth H., Lehmann, Alan R., Gearhart, Patricia J.·2001·Nature Immunology

Abstract

To determine whether DNA polymerase eta plays a role in the hypermutation of immunoglobulin variable genes, we examined the frequency and pattern of substitutions in variable VH6 genes from the peripheral blood lymphocytes of three patients with xeroderma pigmentosum variant disease, whose polymerase eta had genetic defects. The frequency of mutation was normal but the types of base changes were different: there was a decrease in mutations at A and T and a concomitant rise in mutations at G and C. We propose that more than one polymerase contributes to hypermutation and that if one is absent, others compensate. The data indicate that polymerase eta is involved in generating errors that occur predominantly at A and T and that another polymerase(s) may preferentially generate errors opposite G and C.

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Crossref · 10.1038/88740

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  • Signature 9 is a mutation pattern attributed to pol η recruited to repair AID-damaged DNA during somatic hypermutation in immunoglobulin genes.

    “is characterized by a pattern of mutations that has been attributed to pol h (see the Discussion section for details) recruited for the repair of DNA damaged by AID during somatic hypermutation in immunoglobulin genes [28][29][30] .”

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Research works printed but not linked: 1

  1. Wood, R. D., Gearhart, P. J. & Neuberger, M. S. Hypermutation in antibody genes. Phil. Trans. R. Soc. Lond. B 356, 1–125 (2001).

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Authors
Zeng, X., Winter, D. B., Kasmer, C., Kraemer, K. H., Lehmann, A. R., & Gearhart, P. J.
Affiliations
  • National Institutes of Health (US)
  • Walter Reed Army Institute of Research (US)
  • University of Sussex (GB)
Corresponding author
Gearhart, Patricia J.
Venue
Nature Immunology
Published
2001-06
Volume
2
Issue
6
Pages
537-541
ISSN
  • 1529-2908 (ISSN-L)
  • 1529-2916
OpenAlex
W1560486125
Cited by
420
References
49
Citations by year
2026: 1 · 2025: 4 · 2024: 6 · 2023: 6 · 2022: 7 · 2021: 11 · 2020: 12 · 2019: 12 · 2018: 10 · 2017: 10 · 2016: 11 · 2015: 8 · 2014: 12 · 2013: 15 · 2012: 15
FWCI
13.73
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (Z01BC004517)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
Keywords
DNA polymerase eta, somatic hypermutation, immunoglobulin variable region genes, xeroderma pigmentosum variant, peripheral blood lymphocytes, error-prone mutagenesis
MeSH terms
Y-Family DNA Polymerases, Animals, B-Lymphocytes, Base Sequence, DNA, DNA-Directed DNA Polymerase, Genes, Immunoglobulin, Humans, Immunoglobulin Variable Region, Molecular Sequence Data, Mutation, Xeroderma Pigmentosum, Base Pairing, Mice

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