Cited by 1,079DNA Repair MechanismsImmunodeficiency and Autoimmune DisordersEffects of Radiation Exposure

Nibrin, a Novel DNA Double-Strand Break Repair Protein, Is Mutated in Nijmegen Breakage Syndrome

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Varon, Raymonda, Vissinga, Christine, Platzer, Matthias, Cerosaletti, Karen M, Chrzanowska, Krystyna H, Saar, Kathrin, Beckmann, Georg, Seemanová, Eva +11 more·1998·Cell

Abstract

Nijmegen breakage syndrome (NBS) is an autosomal recessive chromosomal instability syndrome characterized by microcephaly, growth retardation, immunodeficiency, and cancer predisposition. Cells from NBS patients are hypersensitive to ionizing radiation with cytogenetic features indistinguishable from ataxia telangiectasia. We describe the positional cloning of a gene encoding a novel protein, nibrin. It contains two modules found in cell cycle checkpoint proteins, a forkhead-associated domain adjacent to a breast cancer carboxy-terminal domain. A truncating 5 bp deletion was identified in the majority of NBS patients, carrying a conserved marker haplotype. Five further truncating mutations were identified in patients with other distinct haplotypes. The domains found in nibrin and the NBS phenotype suggest that this disorder is caused by defective responses to DNA double-strand breaks.

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Crossref · 10.1016/s0092-8674(00)81174-5

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  • Patients with congenital mutations in DNA repair proteins such as NBS1 and ATM have increased chromosomal fragility and increased incidence of tumor formation.

    “This is evident in patients with congenital mutations in DNA repair proteins, such as NBS1 and ATM. Cells from these patients have increased chromosomal fragility, and the patients themselves have an increased incidence of tumor formation.10,16,17”
  • ATG7, DNA2, and NBN encode DNA damage repair proteins in the DNA damage response, including homology-directed repair and non-homologous end joining for double-strand breaks.

    “ATG7 is an autophagy-related protein [136] which can modulate p53-dependent cell cycle pathways during prolonged stress [78] and plays a critical role in homology-directed repair (HDR) of DSBs [46]. Similarly, DNA2 encodes a HDR DNA repair protein for repair of DSBs [62] and NBN encodes a non-homologous end joining (NHEJ) DNA repair protein for repair of DSBs [158].”

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Authors
Varon, R., Vissinga, C., Platzer, M., Cerosaletti, K. M., Chrzanowska, K. H., Saar, K., Beckmann, G., Seemanová, E., Cooper, P. R., Nowak, N. J., Stumm, M., Weemaes, C. M. R., Gatti, R. A., Wilson, R. K., Digweed, M., Rosenthal, A., Sperling, K., Concannon, P., & Reis, A.
Affiliations
  • Humboldt-Universität zu Berlin (DE)
  • University of Washington (US)
  • Max Delbrück Center (DE)
  • Charles University (CZ)
  • Roswell Park Comprehensive Cancer Center (US)
  • University of California, Los Angeles (US)
  • Washington University in St. Louis (US)
Corresponding author
Reis, André
Venue
Cell
Publisher
Elsevier BV
Published
1998-05
Volume
93
Issue
3
Pages
467-476
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2152054208
Cited by
1,079
References
40
Citations by year
2026: 7 · 2025: 16 · 2024: 17 · 2023: 11 · 2022: 19 · 2021: 21 · 2020: 34 · 2019: 20 · 2018: 19 · 2017: 28 · 2016: 23 · 2015: 27 · 2014: 34 · 2013: 37 · 2012: 27
FWCI
23.72
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Funders
  • National Institutes of Health (5r01hg000333-24, 5r01ca063333-06)
  • National Human Genome Research Institute (HG-00333)
  • National Cancer Institute (CA 57569, R01CA057569, CA63333)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › Immunodeficiency and Autoimmune Disorders
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Effects of Radiation Exposure
Keywords
NBS1, Nijmegen breakage syndrome, DNA double-strand break repair, chromosomal instability, ataxia telangiectasia, cell cycle checkpoint proteins, forkhead-associated domain, truncating mutations, haplotypes, cancer susceptibility, immunodeficiency
MeSH terms
Amino Acid Sequence, Base Sequence, Chromosome Aberrations, Chromosome Mapping, Chromosomes, Human, Pair 8, Cloning, Molecular, DNA Damage, DNA Repair, Female, Genes, Recessive, Humans, Male, Microcephaly, Molecular Sequence Data, Nuclear Proteins, RNA, Messenger, Syndrome, Linkage Disequilibrium, Sequence Deletion, Sequence Homology, Amino Acid, Sequence Analysis, DNA, Founder Effect, Cell Cycle Proteins, Chromosome Breakage, Chromosome Disorders

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