Individual UTR elements were cloned as in Figure 3A and transfected along with either EGFP or EGFP-CELF6
(A) Example of live-cell epifluorescent images from a transfection experiment showing EGFP or EGFP-CELF6 expression (top panels) and either tdTomato:EPM2AIP1 or tdTomato:EPM2AIP1(mutant) (bottom panels).
(B–F) tdTomato log2 fluorescence, with lines representing means normalized to EGFP/reference sequence.
Significance was assessed by two-way ANOVA, with post hoc pairwise comparisons using the multcomp package in R. n.s., p > 0.1; †p < 0.1, *p < 0.05, **p < 0.001. Green points represent library elements selected from less-stringent CELF6 target criteria (enrichment over HA/YFP input alone). Scale bar in (A) represents 0.1 mm as indicated.