Cited by 111Chromosomal and Genetic VariationsGenomic variations and chromosomal abnormalitiesGenome Rearrangement Algorithms

Analysis of 5′ junctions of human LINE-1 and Alu retrotransposons suggests an alternative model for 5′-end attachment requiring microhomology-mediated end-joining

Open access
Zingler, Nora, Willhoeft, Ute, Brose, Hans-Peter, Schoder, Volker, Jahns, Thomas, Hanschmann, Kay-Martin O., Morrish, Tammy A., Löwer, Johannes +1 more·2005·Genome Research

Abstract

Insertion of the human non-LTR retrotransposon LINE-1 (L1) into chromosomal DNA is thought to be initiated by a mechanism called target-primed reverse transcription (TPRT). This mechanism readily accounts for the attachment of the 3′-end of an L1 copy to the genomic target, but the subsequent integration steps leading to the attachment of the 5′-end to the chromosomal DNA are still cause for speculation. By applying bioinformatics to analyze the 5′ junctions of recent L1 insertions in the human genome, we provide evidence that L1 uses at least two distinct mechanisms to link the 5′-end of the nascent L1 copy to its genomic target. While 5′-truncated L1 elements show a statistically significant preference for short patches of overlapping nucleotides between their target site and the point of truncation, full-length insertions display no distinct bias for such microhomologies at their 5′-ends. In a second genome-wide approach, we analyzed Alu elements to examine whether these nonautonomous retrotransposons, which are thought to be mobilized through L1 proteins, show similar characteristics. We found that Alu elements appear to be predominantly integrated via a pathway not involving overlapping nucleotides. The results indicate that a cellular nonhomologous DNA end-joining pathway may resolve intermediates from incomplete L1 retrotransposition events and thus lead to 5′ truncations.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1101/gr.3421505

Cites

60 of 60 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • Computational analyses of de novo L1 integrations and genomic L1 integrations have shown that most integrations proceed through a microhomology process for priming L1 DNA synthesis.

    “Computational analyses of de novo L1 integrations and genomic L1 integrations have shown that most integrations proceed through a microhomology process for priming L1 DNA synthesis.9”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Zingler, N., Willhoeft, U., Brose, H.-P., Schoder, V., Jahns, T., Hanschmann, K.-M. O., Morrish, T. A., Löwer, J., & Schumann, G. G.
Affiliations
  • Paul Ehrlich Institut (DE)
  • Universität Hamburg (DE)
  • University Medical Center Hamburg-Eppendorf (DE)
  • University of Michigan (US)
Venue
Genome Research
Published
2005-06
Volume
15
Issue
6
Pages
780-789
ISSN
1088-9051 (ISSN-L)
OpenAlex
W2041586254
Cited by
111
References
59
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 5 · 2022: 10 · 2021: 7 · 2020: 1 · 2019: 4 · 2017: 3 · 2016: 7 · 2015: 8 · 2014: 8 · 2013: 3 · 2012: 2
Type
posted content
Language
en
Open access
Licence
other-oa
Locations
  • Genome Research (publishedVersion, other-oa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Deutsche Forschungsgemeinschaft
  • National Institutes of Health
  • National Institute of General Medical Sciences (GM60518, R01GM060518)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genome Rearrangement Algorithms
Keywords
LINE-1 retrotransposons, Alu elements, microhomology-mediated end joining, non-homologous end joining, target-primed reverse transcription, retrotransposition
MeSH terms
Chromosomes, Human, DNA Replication, Humans, Models, Genetic, Recombination, Genetic, Sequence Homology, Nucleic Acid, Genome, Human, Mutagenesis, Insertional, Long Interspersed Nucleotide Elements, Alu Elements

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