Evidence map›Paper›PMID 30872606›Full record

ArticleScientific reports2019

A simple genotyping method to detect small CRISPR-Cas9 induced indels by agarose gel electrophoresis.

Debanjan Bhattacharya, Erwin G Van Meir

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
–field-weighted citation impact
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

32 citing papers in PubMed.

  1. Article
  2. Same rule, different genes:Science advances · 2024
    Article
  3. Article
  4. Article
  5. A simple and effective genotyping workflow for rapid detection of CRISPR genome editing.American journal of physiology. Gastrointestinal and liver physiology · 2024
    Article
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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

2 authors.

Debanjan BhattacharyaLaboratory of Molecular Neuro-Oncology, Departments of Neurosurgery and Hematology & Medical Oncology, Emory University School of Medicine, Atlanta, GA, 30322, USA.
Erwin G Van MeirLaboratory of Molecular Neuro-Oncology, Departments of Neurosurgery and Hematology & Medical Oncology, Emory University School of Medicine, Atlanta, GA, 30322, USA. evanmei@emory.edu.ORCID 0000-0003-2444-7707

Funding

Winship Cancer Institute Cancer Center Support GrantP30CA138292 · NCI · EMORY UNIVERSITY · PI Suresh S Ramalingam · 2009 to 2026
$47.5M
Evaluating ADGRB3 as a tumor suppressor epigenetically silenced in WNT medulloblastomaR01CA235162 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI VAN MEIR, ERWIN G. · 2019 to 2024
$2.3M
Targeting Mechanisms of Medulloblastoma FormationR01NS096236 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI VAN MEIR, ERWIN G. · 2016 to 2020
$1.9M
NCI NIH HHS P30 CA138292NCI NIH HHS R01 CA235162NINDS NIH HHS R01 NS096236
6 · The paper itself

Abstract

CRISPR gene editing creates indels in targeted genes that are detected by genotyping. Separating PCR products generated from wild-type versus mutant alleles with small indels based on size is beyond the resolution capacity of regular agarose gel electrophoresis. To overcome this limitation, we developed a simple genotyping method that exploits the differential electrophoretic mobility of homoduplex versus heteroduplex DNA hybrids in high concentration agarose gels. First, the CRISPR target region is PCR amplified and homo- and hetero-duplexed amplicons formed during the last annealing cycle are separated by 4-6% agarose gel electrophoresis. WT/mutant heteroduplexes migrate more slowly and are distinguished from WT or mutant homoduplexes. Heterozygous alleles are immediately identified as they produce two distinct bands, while homozygous wild-type or mutant alleles yield a single band. To discriminate the latter, equal amounts of PCR products of homozygous samples are mixed with wild-type control samples, subjected to one denaturation/renaturation cycle and products are electrophoresed again. Samples from homozygous mutant alleles now produce two bands, while those from wild-type alleles yield single bands. This method is simple, fast and inexpensive and can identify indels >2 bp. in size in founder pups and genotype offspring in established transgenic mice colonies.

Indexed as

CRISPR-Cas SystemsGene EditingINDEL MutationAnimalsElectrophoresis, Agar GelFemaleGenotypeGenotyping TechniquesMembrane ProteinsMiceMice, TransgenicNAV1.6 Voltage-Gated Sodium ChannelNerve Tissue ProteinsPolymerase Chain ReactionAdgrb3 protein, mouseMembrane ProteinsNAV1.6 Voltage-Gated Sodium ChannelNerve Tissue ProteinsScn8a protein, mouse

Identifiers

PMID30872606
PMCPMC6418129

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Registered trials

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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.