Binding of a designed anti-cancer drug to the central cavity of an RNA three-way junction.
Phongtongpasuk, S., Paulus, S., Schnabl, J., Sigel, R.K., Spingler, B., Hannon, M.J., Freisinger, E.(2013) Angew Chem Int Ed Engl 52: 11513-11516
- PubMed: 24039102 
- DOI: https://doi.org/10.1002/anie.201305079
- Primary Citation of Related Structures:  
4JIY - PubMed Abstract: 
Getting to the heart of it: Co-crystallization of an RNA three-way junction with a cylindrical di-iron(II)-based anti-cancer drug (green) results in π-stacking interactions between the cylinder and the central base pairs of the RNA structure. The shape, size, and cationic nature of the cylinder were found to be responsible for this perfect fit. Native gel electrophoresis studies confirmed stabilization of the RNA three-way junction by the iron(II) cylinder.
Organizational Affiliation: 
Institut für Anorganische Chemie, Universität Zürich, Winterthurerstrasse 190, 8057 Zürich (Switzerland) http://www.chem.uzh.ch; School of Chemistry, University of Birmingham, Edgbaston, Birmingham B152TT (UK).