Evidence map›Paper›PMID 26053390›Full record

ArticlePloS one2015

Regulation of Gene Editing Activity Directed by Single-Stranded Oligonucleotides and CRISPR/Cas9 Systems.

Pawel Bialk, Natalia Rivera-Torres, Bryan Strouse, Eric B Kmiec

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
5.4field-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

54 citing papers in PubMed, 75 citations in OpenAlex.

  1. Precise CRISPR-Mediated Editing of theInternational journal of molecular sciences · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. The origin of unwanted editing byproducts in gene editing.Acta biochimica et biophysica Sinica · 2022
    Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. On the Origins of Homology Directed Repair in Mammalian Cells.International journal of molecular sciences · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. Cas9 Mediated Correction ofOncoTargets and therapy · 2020
    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

4 authors at 1 institution in 1 country.

Pawel BialkDepartment of Chemistry, Delaware State University, Dover, Delaware, United States of America; Gene Editing Institute, Helen F. Graham Cancer Center, Newark, Delaware, United States of America.
Natalia Rivera-TorresDepartment of Chemistry, Delaware State University, Dover, Delaware, United States of America.
Bryan StrouseDepartment of Chemistry, Delaware State University, Dover, Delaware, United States of America.
Eric B KmiecDepartment of Chemistry, Delaware State University, Dover, Delaware, United States of America.
Delaware State University · US

Funding

Predictive Modeling & Optimal Control Framework for Model-Based Epidemic Response in DelawareP20GM103446 · NIGMS · UNIVERSITY OF DELAWARE · PI MELINDA K DUNCAN · 2012 to 2026
$67.2M
Regulation of Targeted Gene CorrectionR01CA089325 · NCI · UNIVERSITY OF DELAWARE · PI KMIEC, ERIC B. · 2001 to 2012
$2.6M
NCI NIH HHS 5R01CA89325-12NCI NIH HHS R01 CA089325NIGMS NIH HHS P20 GM103446
6 · The paper itself

Abstract

Single-stranded DNA oligonucleotides (ssODNs) can direct the repair of a single base mutation in human genes. While the regulation of this gene editing reaction has been partially elucidated, the low frequency with which repair occurs has hampered development toward clinical application. In this work a CRISPR/Cas9 complex is employed to induce double strand DNA breakage at specific sites surrounding the nucleotide designated for exchange. The result is a significant elevation in ssODN-directed gene repair, validated by a phenotypic readout. By analysing reaction parameters, we have uncovered restrictions on gene editing activity involving CRISPR/Cas9 complexes. First, ssODNs that hybridize to the non-transcribed strand direct a higher level of gene repair than those that hybridize to the transcribed strand. Second, cleavage must be proximal to the targeted mutant base to enable higher levels of gene editing. Third, DNA cleavage enables a higher level of gene editing activity as compared to single-stranded DNA nicks, created by modified Cas9 (Nickases). Fourth, we calculated the hybridization potential and free energy levels of ssODNs that are complementary to the guide RNA sequences of CRISPRs used in this study. We find a correlation between free energy potential and the capacity of single-stranded oligonucleotides to inhibit specific DNA cleavage activity, thereby indirectly reducing gene editing activity. Our data provide novel information that might be taken into consideration in the design and usage of CRISPR/Cas9 systems with ssODNs for gene editing.

Indexed as

DNA, Single-StrandedOligonucleotidesRNA EditingBase SequenceBinding SitesCatalysisCell LineCRISPR-Cas SystemsDeoxyribonuclease IGene ExpressionGenes, ReporterGene TargetingGenetic VectorsHumansMolecular Sequence DataMutationDeoxyribonuclease IDNA, Single-StrandedOligonucleotidesRNA, Guide, CRISPR-Cas Systems

Identifiers

PMID26053390
PMCPMC4459703
OpenAlexW572949249

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.