A sequence-independent analysis of the loop length dependence of intramolecular RNA G-quadruplex stability and topology.
A sequence-independent analysis of the loop length dependence of intramolecular RNA G-quadruplex stability and topology.
复制标题
分子内RNA G四链体稳定性和拓扑结构的环长度依赖性的序列独立分析。
DOI:
10.1021/bi200805j
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发表时间:
2011-08-23
期刊:
影响因子:
2.9
通讯作者:
Balasubramanian, Shankar
中科院分区:
文献类型:
--
作者:
Zhang, Amy Y. Q.;Bugaut, Anthony;Balasubramanian, Shankar
G-Quadruplexes are noncanonical nucleic acid secondary structures based on guanine association that are readily adopted by G-rich RNA and DNA sequences. Naturally occurring genomic G-quadruplex-forming sequences have functional roles in biology that are mediated through structure. To appreciate how this is achieved, an understanding of the likelihood of G-quadruplex formation and the structural features of the folded species under a defined set of conditions is informative. We previously systematically investigated the thermodynamic stability and folding topology of DNA G-quadruplexes and found a strong dependence of these properties on loop length and loop arrangement [Bugaut, A., and Balasubramanian, S. (2008) Biochemistry 47, 689–697]. Here we report on a complementary analysis of RNA G-quadruplexes using UV melting and circular dichroism spectroscopy that also serves as a comparison to the equivalent DNA G-quadruplex-forming sequences. We found that the thermodynamic stability of G-quadruplex RNA can be modulated by loop length while the overall structure is largely unaffected. The systematic design of our study also revealed subtle loop length dependencies in RNA G-quadruplex structure.
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影响因子:
14.9
作者:
Gomez D;Guédin A;Mergny JL;Salles B;Riou JF;Teulade-Fichou MP;Calsou P
通讯作者:
Calsou P
影响因子:
3.2
作者:
Bugaut A;Rodriguez R;Kumari S;Hsu ST;Balasubramanian S
通讯作者:
Balasubramanian S
DOI:
10.1083/jcb.136.4.761
发表时间:
1997-02-24
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bashkirov VI;Scherthan H;Solinger JA;Buerstedde JM;Heyer WD
通讯作者:
Heyer WD
影响因子:
14.9
作者:
Halder K;Wieland M;Hartig JS
通讯作者:
Hartig JS
影响因子:
56.9
作者:
Azzalin, Claus M.;Reichenbach, Patrick;Lingner, Joachim
通讯作者:
Lingner, Joachim