Evidence map›Paper›PMID 23472757›Full record

ArticleAmerican journal of human genetics2013

Molecular analysis of a deletion hotspot in the NRXN1 region reveals the involvement of short inverted repeats in deletion CNVs.

Xiaoli Chen, Yiping Shen, Feng Zhang, Colby Chiang, Vamsee Pillalamarri, Ian Blumenthal, Michael Talkowski, Bai-Lin Wu, James F Gusella

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
5.6field-weighted citation impact, top 4% 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

25 citing papers in PubMed, 42 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Review
  5. WWOX Loss of Function in Neurodevelopmental and Neurodegenerative Disorders.International journal of molecular sciences · 2020
    Review
  6. Article
  7. Article
  8. Modulation of DNA structure formation using small molecules.Biochimica et biophysica acta. Molecular cell research · 2019
    Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Decoding NF1 Intragenic Copy-Number Variations.American journal of human genetics · 2015
    Article
  16. Article
  17. Review
  18. Identification of candidate single-nucleotide polymorphisms in NRXN1 related to antipsychotic treatment response in patients with schizophrenia.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2014
    Article
  19. Review
  20. 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

9 authors at 4 institutions in 2 countries.

Xiaoli ChenCapital Institute of Pediatrics, Beijing, China.
Yiping Shen
Feng Zhang
Colby Chiang
Vamsee Pillalamarri
Ian Blumenthal
Michael Talkowski
Bai-Lin Wu
James F Gusella
Boston Children's Hospital · USMassachusetts General Hospital · USBroad Institute · USFudan University · CN

Funding

RAPID GENE DISCOVERYP01GM061354 · NIGMS · BRIGHAM AND WOMEN'S HOSPITAL · PI TALKOWSKI, MICHAEL E · 2001 to 2019
$24.3M
Genes disrupted by balanced genomic rearrangements in autism spectrum disordersR21HD065286 · NICHD · MASSACHUSETTS GENERAL HOSPITAL · PI GUSELLA, JAMES F · 2009 to 2010
$617k
Rapid characterization of balanced genomic rearrangements contributing to AutismF32MH087123 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI TALKOWSKI, MICHAEL E · 2009 to 2012
$138k
NICHD NIH HHS HD065286NICHD NIH HHS R21 HD065286NIGMS NIH HHS GM061354NIGMS NIH HHS P01 GM061354NIMH NIH HHS F32 MH087123NIMH NIH HHS MH087123
6 · The paper itself

Abstract

NRXN1 microdeletions occur at a relatively high frequency and confer increased risk for neurodevelopmental and neurobehavioral abnormalities. The mechanism that makes NRXN1 a deletion hotspot is unknown. Here, we identified deletions of the NRXN1 region in affected cohorts, confirming a strong association with the autism spectrum and other neurodevelopmental disorders. Interestingly, deletions in both affected and control individuals were clustered in the 5' portion of NRXN1 and its immediate upstream region. To explore the mechanism of deletion, we mapped and analyzed the breakpoints of 32 deletions. At the deletion breakpoints, frequent microhomology (68.8%, 2-19 bp) suggested predominant mechanisms of DNA replication error and/or microhomology-mediated end-joining. Long terminal repeat (LTR) elements, unique non-B-DNA structures, and MEME-defined sequence motifs were significantly enriched, but Alu and LINE sequences were not. Importantly, small-size inverted repeats (minus self chains, minus sequence motifs, and partial complementary sequences) were significantly overrepresented in the vicinity of NRXN1 region deletion breakpoints, suggesting that, although they are not interrupted by the deletion process, such inverted repeats can predispose a region to genomic instability by mediating single-strand DNA looping via the annealing of partially reverse complementary strands and the promoting of DNA replication fork stalling and DNA replication error. Our observations highlight the potential importance of inverted repeats of variable sizes in generating a rearrangement hotspot in which individual breakpoints are not recurrent. Mechanisms that involve short inverted repeats in initiating deletion may also apply to other deletion hotspots in the human genome.

Indexed as

DNA Copy Number VariationsInverted Repeat SequencesSequence DeletionCalcium-Binding ProteinsCell Adhesion Molecules, NeuronalCohort StudiesDNA, B-FormDNA ReplicationDNA, Single-StrandedExonsGenetic Predisposition to DiseaseGenomic InstabilityHumansMental DisordersNerve Tissue ProteinsNeural Cell Adhesion MoleculesCalcium-Binding ProteinsCell Adhesion Molecules, NeuronalDNA, B-FormDNA, Single-StrandedNerve Tissue ProteinsNeural Cell Adhesion MoleculesNRXN1 protein, human

Identifiers

PMID23472757
PMCPMC3591860
OpenAlexW2021405516

What OpenQuestion holds

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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 OpenQuestion graph.