Stacking-induced fluorescence increase reveals allosteric interactions through DNA.
Stacking-induced fluorescence increase reveals allosteric interactions through DNA.
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DOI:
10.1093/nar/gky887
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发表时间:
2018-11-30
影响因子:
14.9
通讯作者:
Magennis SW
中科院分区:
文献类型:
--
作者:
Morten MJ;Lopez SG;Steinmark IE;Rafferty A;Magennis SW
From gene expression to nanotechnology, understanding and controlling DNA requires a detailed knowledge of its higher order structure and dynamics. Here we take advantage of the environment-sensitive photoisomerization of cyanine dyes to probe local and global changes in DNA structure. We report that a covalently attached Cy3 dye undergoes strong enhancement of fluorescence intensity and lifetime when stacked in a nick, gap or overhang region in duplex DNA. This is used to probe hybridization dynamics of a DNA hairpin down to the single-molecule level. We also show that varying the position of a single abasic site up to 20 base pairs away modulates the dye–DNA interaction, indicative of through-backbone allosteric interactions. The phenomenon of stacking-induced fluorescence increase (SIFI) should find widespread use in the study of the structure, dynamics and reactivity of nucleic acids.
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影响因子:
2.9
作者:
Jia, Ke;Wan, Yan;Yang, Guoqiang
通讯作者:
Yang, Guoqiang
DOI:
10.1038/nrm.2016.152
发表时间:
2017-03
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
Weikum ER;Knuesel MT;Ortlund EA;Yamamoto KR
通讯作者:
Yamamoto KR
DOI:
10.1073/pnas.0801707105
发表时间:
2008-08-12
影响因子:
11.1
作者:
Iqbal, Asif;Arslan, Sinan;Lilley, David M. J.
通讯作者:
Lilley, David M. J.
影响因子:
2
作者:
COOPER, A;DRYDEN, DTF
通讯作者:
DRYDEN, DTF
影响因子:
64.8
作者:
Jolma, Arttu;Yin, Yimeng;Taipale, Jussi
通讯作者:
Taipale, Jussi