Evidence map›Paper›PMID 33817640›Full record

ArticleNAR genomics and bioinformatics2021

Exons and introns exhibit transcriptional strand asymmetry of dinucleotide distribution, damage formation and DNA repair.

Elisheva E Heilbrun, May Merav, Sheera Adar

Open access · goldAbstract read
In one paragraph

Article in NAR genomics and bioinformatics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Review
  3. The DREAM complex links somatic mutation, lifespan, and disease.bioRxiv : the preprint server for biology · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Strand asymmetries across genomic processes.Computational and structural biotechnology journal · 2023
    Review
  9. 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

3 authors at 1 institution in 1 country.

Elisheva E HeilbrunDepartment of Microbiology and Molecular Genetics, Institute for Medical Research Israel Canada, Faculty of Medicine, Hebrew University of Jerusalem, Ein Kerem, Jerusalem 91120, Israel.
May MeravDepartment of Microbiology and Molecular Genetics, Institute for Medical Research Israel Canada, Faculty of Medicine, Hebrew University of Jerusalem, Ein Kerem, Jerusalem 91120, Israel.
Sheera AdarDepartment of Microbiology and Molecular Genetics, Institute for Medical Research Israel Canada, Faculty of Medicine, Hebrew University of Jerusalem, Ein Kerem, Jerusalem 91120, Israel.ORCID https://orcid.org/0000-0002-9767-3740
Hebrew University of Jerusalem · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent cancer sequencing efforts have uncovered asymmetry in DNA damage induced mutagenesis between the transcribed and non-transcribed strands of genes. Here, we investigate the major type of damage induced by ultraviolet (UV) radiation, the cyclobutane pyrimidine dimers (CPDs), which are formed primarily in TT dinucleotides. We reveal that a transcriptional asymmetry already exists at the level of TT dinucleotide frequency and therefore also in CPD damage formation. This asymmetry is conserved in vertebrates and invertebrates and is completely reversed between introns and exons. We show the asymmetry in introns is linked to the transcription process itself, and is also found in enhancer elements. In contrast, the asymmetry in exons is not correlated to transcription, and is associated with codon usage preferences. Reanalysis of nucleotide excision repair, normalizing repair to the underlying TT frequencies, we show repair of CPDs is more efficient in exons compared to introns, contributing to the maintenance and integrity of coding regions. Our results highlight the importance of considering the primary sequence of the DNA in determining DNA damage sensitivity and mutagenic potential.

Identifiers

PMID33817640
PMCPMC8002178
OpenAlexW3145456509

What Socratic holds

Textmetadata
LicenceCC BY-NC
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 Socratic graph.