Circular dichroism and conformational polymorphism of DNA.
Circular dichroism and conformational polymorphism of DNA.
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DOI:
10.1093/nar/gkp026
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发表时间:
2009-04
影响因子:
14.9
通讯作者:
Vorlícková M
中科院分区:
文献类型:
--
作者:
Kypr J;Kejnovská I;Renciuk D;Vorlícková M
Here we review studies that provided important information about conformational properties of DNA using circular dichroic (CD) spectroscopy. The conformational properties include the B-family of structures, A-form, Z-form, guanine quadruplexes, cytosine quadruplexes, triplexes and other less characterized structures. CD spectroscopy is extremely sensitive and relatively inexpensive. This fast and simple method can be used at low- as well as high-DNA concentrations and with short- as well as long-DNA molecules. The samples can easily be titrated with various agents to cause conformational isomerizations of DNA. The course of detected CD spectral changes makes possible to distinguish between gradual changes within a single DNA conformation and cooperative isomerizations between discrete structural states. It enables measuring kinetics of the appearance of particular conformers and determination of their thermodynamic parameters. In careful hands, CD spectroscopy is a valuable tool for mapping conformational properties of particular DNA molecules. Due to its numerous advantages, CD spectroscopy significantly participated in all basic conformational findings on DNA.
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影响因子:
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作者:
Gray, Donald M.;Wen, Jin-Der;Fleischhauer, Joerg
通讯作者:
Fleischhauer, Joerg
DOI:
10.1073/pnas.052675499
发表时间:
2002-03-05
影响因子:
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通讯作者:
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通讯作者:
Wieser, H
影响因子:
2.9
作者:
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通讯作者:
Sheardy, Richard D.