Article
Monovalent ion-mediated folding of the Tetrahymena thermophila ribozyme.
Journal of molecular biology - 1 Oct 2004
Shcherbakova Inna, Gupta Sayan, Chance Mark R, Brenowitz Michael
Abstract excerpt
The time-course of monovalent cation-induced folding of the L-21 Sca1 Tetrahymena thermophila ribozyme and a selected mutant was quantitatively followed using synchrotron X-ray (.OH) footprinting. Initiating folding by increasing the concentration of either Na+ or K+ to 1.5M from an initial condition of approximately 0.008 M Na+ at 42 degrees C resulted in the complete formation of tertiary contacts within the...
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