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
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影响因子:
--
通讯作者:
Neidle, Stephen
中科院分区:
文献类型:
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作者:
Campbell, Nancy H.;Neidle, Stephen
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.