Observation of the coexistence of sodium and calcium ions in a DNA G-quadruplex ion channel

被引:60
作者
Lee, Michael P. H. [1 ]
Parkinson, Gary N. [1 ]
Hazel, Pascale [1 ]
Neidle, Stephen [1 ]
机构
[1] Univ London, Sch Pharm, CRUK Biomol Struct Grp, London WC1N 1AX, England
关键词
D O I
10.1021/ja0740869
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The crystal structure of a DNA quadruplex, d(TGGGGT), crystallized in the presence of calcium and sodium ions, shows the presence of both ions in the central channel of the structure. This was verified by anomalous dispersion maps, which unequivocally showed the presence of calcium ions.
引用
收藏
页码:10106 / +
页数:3
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共 30 条
[1]   Solution structure of the biologically relevant g-quadruplex element in the human c-MYC promoter. implications for g-quadruplex stabilization [J].
Ambrus, A ;
Chen, D ;
Dai, JX ;
Jones, RA ;
Yang, DZ .
BIOCHEMISTRY, 2005, 44 (06) :2048-2058
[2]   Human telomeric sequence forms a hybrid-type intramolecular G-quadruplex structure with mixed parallel/antiparallel strands in potassium solution [J].
Ambrus, Attila ;
Chen, Ding ;
Dai, Jixun ;
Bialis, Tiffanie ;
Jones, Roger A. ;
Yang, Danzhou .
NUCLEIC ACIDS RESEARCH, 2006, 34 (09) :2723-2735
[3]   Divalent transition metal cations counteract potassium-induced quadruplex assembly of oligo(dG) sequences [J].
Blume, SW ;
Guarcello, V ;
Zacharias, W ;
Miller, DM .
NUCLEIC ACIDS RESEARCH, 1997, 25 (03) :617-625
[4]   Quadruplex DNA: sequence, topology and structure [J].
Burge, Sarah ;
Parkinson, Gary N. ;
Hazel, Pascale ;
Todd, Alan K. ;
Neidle, Stephen .
NUCLEIC ACIDS RESEARCH, 2006, 34 (19) :5402-5415
[5]   A thymine tetrad in d(TGGGGT) quadruplexes stabilized with Tl+/Na+ ions [J].
Cáceres, C ;
Wright, G ;
Gouyette, C ;
Parkinson, G ;
Subirana, JA .
NUCLEIC ACIDS RESEARCH, 2004, 32 (03) :1097-1102
[6]   SR2+ FACILITATES INTERMOLECULAR G-QUADRUPLEX FORMATION OF TELOMERIC SEQUENCES [J].
CHEN, FM .
BIOCHEMISTRY, 1992, 31 (15) :3769-3776
[7]   Structure of a d(TGGGGT) quadruplex crystallized in the presence of Li+ ions [J].
Creze, Christophe ;
Rinaldi, Bruno ;
Haser, Richard ;
Bouvet, Philippe ;
Gouet, Patrice .
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY, 2007, 63 :682-688
[8]   G-quartets 40 years later:: From 5′-GMP to molecular biology and supramolecular chemistry [J].
Davis, JT .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (06) :668-698
[9]   X-ray analysis of an RNA tetraplex (UGGGGU)4 with divalent Sr2+ ions at subatomic resolution (0.61Å) [J].
Deng, JP ;
Xiong, Y ;
Sundaralingam, M .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2001, 98 (24) :13665-13670
[10]   Crystallization and characterization of the thallium form of the Oxytricha nova G-quadruplex [J].
Gill, Michelle L. ;
Strobel, Scott A. ;
Loria, J. Patrick .
NUCLEIC ACIDS RESEARCH, 2006, 34 (16) :4506-4514