Co(II)(Chromomycin)₂ Complex Induces a Conformational Change of CCG Repeats from i-Motif to Base-Extruded DNA Duplex.
Co(II)(Chromomycin)₂ Complex Induces a Conformational Change of CCG Repeats from i-Motif to Base-Extruded DNA Duplex.
复制标题
DOI:
10.3390/ijms19092796
复制
发表时间:
2018-09-17
影响因子:
5.6
通讯作者:
Hou MH
中科院分区:
文献类型:
--
作者:
Chen YW;Satange R;Wu PC;Jhan CR;Chang CK;Chung KR;Waring MJ;Lin SW;Hsieh LC;Hou MH
We have reported the propensity of a DNA sequence containing CCG repeats to form a stable i-motif tetraplex structure in the absence of ligands. Here we show that an i-motif DNA sequence may transition to a base-extruded duplex structure with a GGCC tetranucleotide tract when bound to the (CoII)-mediated dimer of chromomycin A3, CoII(Chro)2. Biophysical experiments reveal that CCG trinucleotide repeats provide favorable binding sites for CoII(Chro)2. In addition, water hydration and divalent metal ion (CoII) interactions also play a crucial role in the stabilization of CCG trinucleotide repeats (TNRs). Our data furnish useful structural information for the design of novel therapeutic strategies to treat neurological diseases caused by repeat expansions.
登录
查看更多内容
影响因子:
64.5
作者:
FU, YH;KUHL, DPA;CASKEY, CT
通讯作者:
CASKEY, CT
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
14.9
作者:
Hou, MH;Robinson, H;Wang, AHJ
通讯作者:
Wang, AHJ
影响因子:
5.6
作者:
CANTOR, CR;TINOCO, I
通讯作者:
TINOCO, I
DOI:
10.1080/13854046.2016.1184652
发表时间:
2016-08
期刊:
The Clinical neuropsychologist
影响因子:
--
作者:
Grigsby J
通讯作者:
Grigsby J