Cited by 80Muscle Physiology and DisordersGenomic variations and chromosomal abnormalitiesDNA Repair Mechanisms

Investigating the mechanism of chromosomal deletion: characterization of 39 deletion breakpoints in introns 47 and 48 of the human dystrophin gene

Toffolatti, Luisa, Cardazzo, Barbara, Nobile, Carlo, Danieli, Gian Antonio, Gualandi, Francesca, Muntoni, Francesco, Abbs, Steve, Zanetti, Patrizia +4 more·2002·Genomics

Abstract

The region of the dystrophin gene containing introns 45-50 is characterized by a high rate of recombination events that give rise to large deletions causing dystrophinopathy. The nucleotide sequence of this intronic region has recently been released in GenBank. With the aim of further understanding the mechanism favoring the occurrence of these deletions, we have characterized the distribution of introns 47 and 48 deletion endpoints in 39 dystrophinopathy patients. In 14 of these patients we were able to sequence the break junction. On these sequences we were able to identify several intronic motifs that could predispose to DNA double-strand breaks. Our results, combined with other literature data, show that unequal homologous recombination is a very poorly represented event in the dystrophin gene, whereas junction features are suggestive of a model of recombination in which DNA double-strand breaks are incorrectly repaired by a nonhomologous end-joining mechanism. The correlation among recombination rate, deletion frequency, and percentage of repetitive elements is discussed.

Integrity signals

Registry

Crossref · 10.1006/geno.2002.6861

Cites

32 of 32 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • CNV breakpoints formed by NHEJ are often located within repetitive elements such as LTRs, SINEs, LINEs, and MIRs.

    “The breakpoints of CNVs formed by NHEJ are frequently observed within repetitive elements, such as long terminal repeats (LTRs), short interspersed repeat elements (SINEs), long interspersed nuclear elements (LINEs), and mammalian interspersed repeats (MIRs).”

    From CNVs: Harbingers of a Rare Variant Revolution in Psychiatric Genetics (2012) · cites this paper as Toffolatti et al., 2002

  • NHEJ may be promoted by certain genomic architectures but does not require extensive sequence homology.

    “This suggests that NHEJ may be stimulated by certain genomic architectures, but extensive sequence homology is not required (Toffolatti et al., 2002).”

    From CNVs: Harbingers of a Rare Variant Revolution in Psychiatric Genetics (2012) · cites this paper as Toffolatti et al., 2002

Cites

Flagged first, then by citations

1 of the 33 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Toffolatti, L., Cardazzo, B., Nobile, C., Danieli, G. A., Gualandi, F., Muntoni, F., Abbs, S., Zanetti, P., Angelini, C., Ferlini, A., Fanin, M., & Patarnello, T.
Affiliations
  • University of Padua (IT)
  • University of Ferrara (IT)
Corresponding author
Patarnello, Tomaso
Venue
Genomics
Publisher
Elsevier BV
Published
2002-11
Volume
80
Issue
5
Pages
523-530
ISSN
0888-7543 (ISSN-L)
OpenAlex
W2034526956
Cited by
80
References
33
Citations by year
2025: 4 · 2024: 1 · 2023: 1 · 2022: 2 · 2021: 1 · 2020: 2 · 2018: 1 · 2017: 2 · 2016: 1 · 2015: 2 · 2014: 6 · 2013: 5 · 2012: 7
FWCI
1.27
Type
journal article
Language
en
Open access
closed
Locations
  • Genomics (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Institutional Research Information System University of Ferrara (University of Ferrara) (submittedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
dystrophin gene, dystrophinopathy, chromosomal deletion, deletion breakpoints, non-homologous end joining, DNA double-strand breaks, recombination hotspots, repetitive elements, recombination rate
MeSH terms
Amino Acid Sequence, Base Sequence, Humans, Introns, Molecular Sequence Data, Muscular Dystrophies, Recombination, Genetic, Repetitive Sequences, Nucleic Acid, Sequence Homology, Nucleic Acid, Dystrophin, Gene Deletion, Chromosome Breakage

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review