Structure of an A-form RNA duplex obtained by degradation of 6S RNA in a crystallization droplet
Kondo, J., Dock-Bregeon, A.C., Willkomm, D.K., Hartmann, R.K., Westhof, E.(2013) Acta Crystallogr Sect F Struct Biol Cryst Commun 69: 634-639
- PubMed: 23722840 
- DOI: https://doi.org/10.1107/S1744309113013018
- Primary Citation of Related Structures:  
4JRT - PubMed Abstract: 
In the course of a crystallographic study of a 132 nt variant of Aquifex aeolicus 6S RNA, a crystal structure of an A-form RNA duplex containing 12 base pairs was solved at a resolution of 2.6 Å. In fact, the RNA duplex is part of the 6S RNA and was obtained by accidental but precise degradation of the 6S RNA in a crystallization droplet. 6S RNA degradation was confirmed by microscopic observation of crystals and gel electrophoresis of crystallization droplets. The RNA oligomers obtained form regular A-form duplexes containing three GoU wobble-type base pairs, one of which engages in intermolecular contacts through a ribose-zipper motif at the crystal-packing interface.
Organizational Affiliation: 
Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan. j.kondo@sophia.ac.jp