Complex-Formation of Ethidium Bromide with Poly[d(A-T)]·Poly[d(A-T)]
Complex-Formation of Ethidium Bromide with Poly[d(A-T)]·Poly[d(A-T)]
复制标题
溴化乙锭与聚[d(A-T)]·聚[d(A-T)]的络合
DOI:
10.1080/07391102.2005.10507017
复制
发表时间:
2005
影响因子:
4.4
通讯作者:
A. T. Karapetian
中科院分区:
文献类型:
--
作者:
P. O. Vardevanyan;A. Antonyan;M. Parsadanyan;H. Davtyan;Zaruhi R Boyajyan;A. T. Karapetian
Abstract The interaction of Ethidium Bromide (EtBr) with double-stranded (ds-) and single-stranded (ss-) poly[d(A-T)] was studied in different ionic strengths solutions. Optical spectroscopy and Scatchard analysis results indicate that the ligand interacts to both helix and coiled structures of the polynucleotide by “strong” and “weak” binding modes. The association parameters (binding constant—K—and the number of nucleotides corresponding to a binding site—n) of the strong type of interaction were found to be independent of Na+ concentration. Weak interaction occurs at low ionic strength and/or high EtBr concentration. Estimated binding parameters of EtBr with ss- and ds-polynucleotide are in good agreement with those for EtBr-B-DNA complexes. Data obtained provided an evidence for a stacking interaction of EtBr with single stranded poly[d(A-T)].
影响因子:
4.4
作者:
Veal,JM;Wilson,WD
通讯作者:
Wilson,WD
DOI:
10.1073/pnas.84.24.8922
发表时间:
1987-12-01
影响因子:
11.1
作者:
BRESLAUER, KJ;REMETA, DP;MARKY, LA
通讯作者:
MARKY, LA
DOI:
--
发表时间:
1989
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Graves,DE;Wadkins,RM
通讯作者:
Wadkins,RM