Redmond Red as a redox probe for the DNA-mediated detection of abasic sites.
Redmond Red as a redox probe for the DNA-mediated detection of abasic sites.
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DOI:
10.1021/bc800339y
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发表时间:
2008-11-19
影响因子:
4.7
通讯作者:
Barton, Jacqueline K.
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文献类型:
--
作者:
Buzzeo, Marisa C.;Barton, Jacqueline K.
Redmond Red, a fluoropore containing a redox active phenoxazine core, has been explored as a new electrochemical probe for the detection of abasic sites in double stranded DNA. The electrochemical behavior of Redmond Red-modified DNA at gold surfaces exhibits stable, quasi-reversible voltammetry with a midpoint potential centered around -50 mV versus NHE. Importantly, with Redmond Red positioned opposite an abasic site within the DNA duplex, the electrochemical response is significantly enhanced compared to Redmond Red positioned across from a base. Redmond Red, reporting only if well stacked in the duplex, represents a sensitive probe to detect abasic sites electrochemically in a DNA-mediated reaction.
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