RNA Aptamer Broccoli (sodium)

RNA Aptamer Broccoli (sodium) is a 49-nt-long aptamer that is substantially shorter than Spinach and Spinach2 and exhibits bright green fluorescence upon binding DFHBI or DFHBI-1T (soluble analogs of the fluorophore of green fluorescent protein). RNA Aptamer Broccoli (sodium) can be used to visualize RNA expression or localization in live cells. In vitro Broccoli exhibits a similar high folding efficiency as Spinach2, but exhibits markedly lower dependence on magnesium for folding and increased thermostability. Additionally, unlike Spinach2, Broccoli does not require the use of a tRNA scaffold to promote its folding in vivo.