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Sequences of the DNA duplexes used in this study. The conserved pentapyrimidine sequence is highlighted by the horizontal line. For the 24B/34F duplex used for formation of the covalent complex (12), the sequence shown in red is the biotinylated portion that is removed when applied to streptavidin beads. The 12mer sequence overhang is complimentary to the strand exchange 12mer.
