Evidence map›Paper›PMID 19517510›Full record

ReviewElectrophoresis2009

Electrophoresis of DNA in agarose gels, polyacrylamide gels and in free solution.

Nancy C Stellwagen

Open access · greenAbstract readHistorical ArticleReview
In one paragraph

Review in Electrophoresis, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
4.1field-weighted citation impact, top 6% 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

42 citing papers in PubMed, 194 citations in OpenAlex.

  1. Review
  2. Article
  3. Arbovirus Detection inPathogens (Basel, Switzerland) · 2025
    Article
  4. Review
  5. Article
  6. Analysis of Inositol Phosphates via Polyacrylamide Gel Electrophoresis (PAGE).Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. DNA supercoiling-induced shapes alter minicircle hydrodynamic properties.bioRxiv : the preprint server for biology · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. A PCR-RFLP Technique to Assess the Geographic Origin ofTropical medicine and infectious disease · 2022
    Article
  17. Article
  18. Article
  19. Article
  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

1 author at 1 institution in 1 country.

Nancy C StellwagenDepartment of Biochemistry, University of Iowa, Iowa City, IA 52242, USA. nancy-stellwagen@uiowa.edu
University of Iowa · US

Funding

FREE SOLUTION MOBILITY AS A PROBE OF DNA ELECTROSTATICSR01GM061009 · NIGMS · UNIVERSITY OF IOWA · PI STELLWAGEN, NANCY C · 2001 to 2004
$958k
ELECTRIC BIREFRINGENCE OF DNA RESTRICTION FRAGMENTSR01GM029690 · NIGMS · UNIVERSITY OF IOWA · PI STELLWAGEN, NANCY C · 1985 to 2002
$625k
ELECTRIC BIREFRINGENCE OF DNA RESTRICTION FRAGMENTR01EB002808 · NIBIB · UNIVERSITY OF IOWA · PI STELLWAGEN, NANCY C · 2003 to 2003
$218k
NIBIB NIH HHS EB002808NIBIB NIH HHS R01 EB002808NIGMS NIH HHS GM29690NIGMS NIH HHS GM61009NIGMS NIH HHS R01 GM029690NIGMS NIH HHS R01 GM061009
6 · The paper itself

Abstract

This review describes the electrophoresis of curved and normal DNA molecules in agarose gels, polyacrylamide gels and in free solution. These studies were undertaken to clarify why curved DNA molecules migrate anomalously slowly in polyacrylamide gels but not in agarose gels. Two milestone papers are cited, in which Ferguson plots were used to estimate the effective pore size of agarose and polyacrylamide gels. Subsequent studies on the effect of the electric field on agarose and polyacrylamide gel matrices, DNA interactions with the two gel matrices, and the effect of curvature on the free solution mobility of DNA are also described. The combined results suggest that the anomalously slow mobilities observed for curved DNA molecules in polyacrylamide gels are primarily due to preferential interactions of curved DNAs with the polyacrylamide gel matrix; the restrictive pore size of the matrix is of lesser importance. In free solution, DNA mobilities increase with increasing molecular mass until leveling off at a plateau value of (3.17 +/- 0.01) x 10(-4) cm2/V s in 40 mM Tris-acetate-EDTA buffer at 20 degrees C. Curved DNA molecules migrate anomalously slowly in free solution as well as in polyacrylamide gels, explaining why the Ferguson plots of curved and normal DNAs containing the same number of base pairs extrapolate to different mobilities at zero gel concentration.

Indexed as

DNAElectrophoresis, Agar GelElectrophoresis, Polyacrylamide GelHistory, 20th CenturyHistory, 21st CenturyNucleic Acid ConformationDNA

Identifiers

PMID19517510
PMCPMC2757927
OpenAlexW2129609646

What OpenQuestion holds

Textmetadata
LicenceTDM
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.