Dynamics of the RNA hairpin GNRA tetraloop.

Abstract

The dynamics of RNA hairpin tetraloops of the GNRA type [sequence G- any ribonucleotide (N)-purine (R)-A] was analyzed by fluorescence spectroscopy and by fluorescence-detected temperature-jump relaxation, using RNA oligomers with 2-aminopurine (2AP) substituted in two different positions of the loop sequence, Gp2APpApA (HP1) and GpAp2APpA (HP2), as… (More)

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