A flow linear dichroism technique is utilized to study the unwinding of supercoiled DNA induced by the binding of ethidium bromide ( E B ) and proflavine ( PF) at different ratios r (drug added/DNA base). In the case of either EB or PF bound to linear calf thymus DNA, the reduced linear dichroism si
Orientation and linear dichroism characteristics of porphyrin-DNA complexes
β Scribed by Geacintov, Nicholas E.; Ibanez, Victor; Rougee, Michel; Bensasson, Rene V.
- Book ID
- 120360887
- Publisher
- American Chemical Society
- Year
- 1987
- Tongue
- English
- Weight
- 764 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0006-2960
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π SIMILAR VOLUMES
The circular dichroism (CD) spectra of flow-oriented complexes of DNA with proflavine (PF), ethidium (ET) and distamycine (DS) have been studied in the ultraviolet region. The CD spectra with light propagating in parallel to the flow direction were measured by the method of Chung and Holzwarth [ 1 ]
The study of the monomeric chromophore of the distamycins reported in Ref. 1 was used here to build up a description of the electronic states of the whole oligopeptide by the exciton theory. Liquid crystal-linear dichroism (LC-LD) spectra of the distamycins were recorded by using as orienting solven