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Spectroscopic studies on the interaction of pazufloxacin with calf thymus DNA

Paper ID Volume ID Publish Year Pages File Format Full-Text
30484 44481 2008 5 PDF Available
Title
Spectroscopic studies on the interaction of pazufloxacin with calf thymus DNA
Abstract

Fluorescence spectra, absorption spectra, DNA viscosity titrations, competition experiment, and iodide quenching experiment were used to study the interaction of DNA with pazufloxacin. DNA quenches the fluorescence of pazufloxacin significantly. No red shift and isobestic points are observed in UV titration experiment. DNA viscosity and iodide quenching results suggest that pazufloxacin does not intercalate into DNA. SsDNA has a stronger quenching effect on pazufloxacin than dsDNA has. Pazufloxacin interacts with DNA in a different mode from ethidium bromide, which is a typical intercalator of DNA. All these results indicate that pazufloxacin interacts with calf thymus DNA in the mode of groove binding. The quenching constant and thermodynamic constants have also been determined.

Keywords
Pazufloxacin; DNA; Interaction; Groove binding; Spectroscopic
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Spectroscopic studies on the interaction of pazufloxacin with calf thymus DNA
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 93, Issue 3, 11 December 2008, Pages 172–176
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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