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TectoRNAs employing two loop–receptor motifs and their modes of assembly. (A) Two modes of assembly used in this study. (B) Schematic of RNA assembly unit showing elements varied for this study. The tetraloop (L) is shown in red, the tetraloop receptor (R) in green, the linker (or hinge) in blue and the insert [comprising a helix and a second linker (or hinge)] in magenta (refer also to the 2D and 3D models in Figs 2 and 3).
