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Dr. Nguyen Thuan Dao, Dr. Reinhard Haselsberger, Prof. Dr. Maria-Elisabeth Michel-Beyerle and Prof. Dr. Anh Tuân Phan Excimer Formation by Stacking G-Quadruplex Blocks ChemPhysChem 14

Article first published online: 18 JUN 2013 | DOI: 10.1002/cphc.201300481

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A special stack: In the presence of K+ ions, a specific guanine-rich DNA sequence forms a stacked G-quadruplex dimer giving rise to excimer emission in the 400 nm region. This emission with nanosecond lifetime occurs only for a particular base overlap pattern between two stacked G-quadruplex blocks and can be manipulated by changing DNA sequence and external conditions.

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