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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Electrochemical telomerase assay with ferrocenylnaphthalene diimide as a tetraplex DNA-specific binder.

Spectroscopic studies revealed that ferrocenylnaphthalene diimide (1) can bind to tetraplex DNA at high potassium ion concentration. The tetraplex DNA was stabilized by the binding of 1, and this effect was larger than that of any other tetraplex stabilizers, which are known as a telomerase inhibitor. Quantitative analysis with circular dichroism and a quartz crystal microbalance strongly suggested a 3:1 binding stoichiometry of 1 to the tetraplex DNA. The telomere sequence could be extended by telomerase with the telomerase substrate primer on the surface of an electrode as proven by an increased current signal of 1 bound to the tetraplex DNA formed on the electrode. This is the first example of electrochemical detection of telomerase activity without relying on PCR.[1]

References

  1. Electrochemical telomerase assay with ferrocenylnaphthalene diimide as a tetraplex DNA-specific binder. Sato, S., Kondo, H., Nojima, T., Takenaka, S. Anal. Chem. (2005) [Pubmed]
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