d(CGGTGGT) forms an octameric parallel G-quadruplex via stacking of unusual G(:C):G(:C):G(:C):G(:C) octads.
d(CGGTGGT) forms an octameric parallel G-quadruplex via stacking of unusual G(:C):G(:C):G(:C):G(:C) octads.
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DOI:
10.1093/nar/gkr489
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发表时间:
2011-09-01
影响因子:
14.9
通讯作者:
Mayol L
中科院分区:
文献类型:
--
作者:
Borbone N;Amato J;Oliviero G;D'Atri V;Gabelica V;De Pauw E;Piccialli G;Mayol L
Among non-canonical DNA secondary structures, G-quadruplexes are currently widely studied because of their probable involvement in many pivotal biological roles, and for their potential use in nanotechnology. The overall quadruplex scaffold can exhibit several morphologies through intramolecular or intermolecular organization of G-rich oligodeoxyribonucleic acid strands. In particular, several G-rich strands can form higher order assemblies by multimerization between several G-quadruplex units. Here, we report on the identification of a novel dimerization pathway. Our Nuclear magnetic resonance, circular dichroism, UV, gel electrophoresis and mass spectrometry studies on the DNA sequence dCGGTGGT demonstrate that this sequence forms an octamer when annealed in presence of K+ or NH4+ ions, through the 5′-5′ stacking of two tetramolecular G-quadruplex subunits via unusual G(:C):G(:C):G(:C):G(:C) octads.
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影响因子:
14.9
作者:
Mergny JL;Li J;Lacroix L;Amrane S;Chaires JB
通讯作者:
Chaires JB
影响因子:
5.7
作者:
Girvan, Allicia C.;Teng, Yun;Bates, Paula J.
通讯作者:
Bates, Paula J.
影响因子:
7.4
作者:
Gabelica, Valerie;Rosu, Frederic;De Pauw, Edwin
通讯作者:
De Pauw, Edwin
影响因子:
3.9
作者:
Guedin, Aurore;De Cian, Anne;Mergny, Jean-Louis
通讯作者:
Mergny, Jean-Louis
DOI:
10.1073/pnas.89.18.8832
发表时间:
1992-09-15
影响因子:
11.1
作者:
JIN, RZ;GAFFNEY, BL;BRESLAUER, KJ
通讯作者:
BRESLAUER, KJ