Densitometric quantification of DNA topoisomers in ethidium bromide-stained agarose gels and chemiluminescence-detected X ray films.

• Authors: Zeki Topcu
• Languages of publication: EN

Abstracts

EN

This study investigates the contribution of deformational strain imposed by topological interconversions of DNA in ethidium bromide-binding on agarose gels. Closed-circular plasmid DNAs were nicked using UV exposure and the DNA bands were quantified by densitometry. The results show that the closed circular DNA binds the same amount of the dye as its nicked counterpart. The relationship between the band intensity on X-ray films of chemiluminescence-detected Southern blots and DNA concentration was shown to be linear.

Keywords

EN

densitometry; ethidium bromide; chemiluminescence; DNA topoisomers

• Publisher: Polish Biochemical Society
• Journal: Acta Biochimica Polonica
• Year: 2000
• Volume: 47
• Issue: 3
• Pages: 835-839

Dates

published

2000

received

2000-05-29

accepted

2000-06-12

Contributors

author

Zeki Topcu

• Department of Pharmaceutical Biotechnology, School of Pharmacy, Ege University, Izmir, Turkey

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