G-Quadruplexes and Metal Ions

G-Quadruplexes and Metal Ions
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DOI:
10.1007/978-94-007-2172-2_4
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发表时间:
2012-01-01
期刊:
INTERPLAY BETWEEN METAL IONS AND NUCLEIC ACIDS
影响因子:
--
通讯作者:
Neidle, Stephen
Neidle, Stephen
中科院分区:
其他
文献类型:
--
作者:
Campbell, Nancy H.;Neidle, Stephen

文献摘要

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金属离子通过协调来自g -四重奏的O6鸟嘌呤原子来稳定四重体核酸。这些四重奏构成了四重结构的基本主题。本文系统地调查了现有的晶体学数据的天然四联体,他们的配体复合物和(在一个实例中)一个蛋白质复合物。研究了三种四重体:四分子,双分子和分子内:它们都是由人类或纤毛虫生物的端粒核酸序列形成的。
Metal ions stabilize quadruplex nucleic acids by coordinating the O6 guanine atoms from G-quartets. These quartets form the basic motif of quadruplex structures. This article systematically surveys the available crystallographic data on native quadruplexes, their ligand complexes and (in one instance) a protein complex. Three categories of quadruplex are examined, tetramolecular, bimolecular, and intramolecular: all are formed by telomeric nucleic acid sequences from human or ciliate organisms.