Ion Mobility-Mass Spectrometry Reveals Details of Formation and Structure for GAA·TCC DNA and RNA Triplexes

Jiawei Li, Alexander Begbie, Belinda J. Boehm, Alexander Button, Charles Whidborne, Yannii Pouferis, David M. Huang, Tara L. Pukala; J. Am. Soc. Mass Spectrom. (2019) 30: 103. doi:10.1007/s13361-018-2077-9

DNA and RNA triplexes are thought to play key roles in a range of cellular processes such as gene regulation and epigenetic remodeling and have been implicated in human disease such as Friedreich’s ataxia. In this work, ion mobility-mass spectrometry (IM-MS) is used with supporting UV-visible spectroscopy to investigate DNA triplex assembly, considering stability and specificity, for GAA·TTC oligonucleotide sequences of relevance to Friedreich’s ataxia.



Ion Mobility-Mass Spectrometry Reveals Details of Formation and Structure for GAA·TCC DNA and RNA Triplexes