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Folding pathway between the two meta-stable secondary structures A,B of spliced leader (SL) RNA from Leptomonas collosoma, following LeCuyer and Crothers, who in Proc Natl Acad Sci U S A. 1994 Apr 12;91(8):3373-7 describe stopped-flow rapid-mixing and temperature-jump measurements of the kinetics for this structural transition. SL RNA sequence: AACUAAAACAAUUUUUGAAGAACAGUUUCUGUACUUCAUUGGUAUGUAGAGACUUCStructure A: ..((...((((((..(((((.((((...)))).)))))..))).)))..)).....
Structure B: .......................((((((((((((.....)))))..))))))).. Folding pathway determined by TABU-semi-greedy method. Movie produced by RNAmovies.