- PII
- S30345278S0006302925030026-1
- DOI
- 10.7868/S3034527825030026
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 70 / Issue number 3
- Pages
- 430-438
- Abstract
- Determination of interaction parameters of low molecular weight compounds with DNA is difficult in cases where compounds do not exhibit appreciable fluorescence or their spectral changes are difficult to interpret. To solve this problem, an approach involving the use of known fluorescent dyes competitively binding on DNA is proposed. This approach uses a model describing the competitive binding of two extended ligands on a linear DNA matrix. This model allows approximation of experimental data and determination of binding parameters corresponding to two non-fluorescent types of ligands. The first type of ligands exhibits intercalation binding to DNA and competes with ethidium bromide, while the second type binds along a narrow groove and competes with Hoechst 33258 dye.
- Keywords
- конкурентное связывание лигандов с ДНК термодинамические модели изотермы адсорбции уравнения связывания анализ изотерм адсорбции Hoechst 33258 этандий бромид
- Date of publication
- 15.01.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 44
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