Cadmium ion induced bending of phosphorothioate oligonucleotide G10

Lin Jiang; Bai-quan Yang; Yu-dan Ma; Wen-sheng Yang; Zu-liang Du; Tie-jin Li

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Physical Chemistry C...arrow_drop_down

Physical Chemistry Chemical Physics

Article . 2002 . Peer-reviewed

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https://dx.doi.org/10.1039/b21...

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Cadmium ion induced bending of phosphorothioate oligonucleotide G10

descriptionPublicationkeyboard_double_arrow_right Article 09 Dec 2002Publisher:Royal Society of Chemistry (RSC)Journal:Physical Chemistry Chemical Physics, volume 5, pages 632-634 (issn: 1463-9076, eissn: 1463-9084,

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Authors: Lin Jiang; Bai-quan Yang; Yu-dan Ma; Wen-sheng Yang; Zu-liang Du; Tie-jin Li;

doi: 10.1039/b210058d

Cadmium ion induced bending of phosphorothioate oligonucleotide G10

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Abstract

The interaction of cadmium ions and phosphorothioate oligonucleotides G10 (PS-oligoG10) was studied by UV–visible and Raman spectroscopies. It is found that the addition of Cd2+ can destroy the hydrogen bonds between guanine–guanine bases of PS-oligoG10 and induce the bending of PS-oligoG10 through coordination of Cd2+ with its phosphate groups. The bent PS-oligoG10/Cd2+ complex is observed as a nanosphere with a diameter of about 2 nm as shown by TEM.

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