Download MendeleyNovel conformation of an RNA structural switch.
Kennedy, S.D., Kierzek, R., Turner, D.H.(2012) Biochemistry 51: 9257-9259
- PubMed: 23134175
- DOI: https://doi.org/10.1021/bi301372t
- Primary Citation of Related Structures:
2LX1 - PubMed Abstract:
The RNA duplex, (5'GACGAGUGUCA)(2), has two conformations in equilibrium. The nuclear magnetic resonance solution structure reveals that the major conformation of the loop, 5'GAGU/3'UGAG, is novel and contains two unusual Watson-Crick/Hoogsteen GG pairs with G residues in the syn conformation, two A residues stacked on each other in the center of the helix with inverted sugars, and two bulged-out U residues. The structure provides a benchmark for testing approaches for predicting local RNA structure and a sequence that allows the design of a unique arrangement of functional groups and/or a conformational switch into nucleic acids.
Organizational Affiliation:
Department of Biochemistry and Biophysics, University of Rochester School of Medicine and Dentistry, Rochester, New York 14642, United States.
