Figure 2.

Pri-miRNA processing efficiency is a predictor of endogenous miRNA expression. Spearman rank correlation test was performed comparing relative Drosha cleavage efficiencies to published human miRNA expression data [9; see also Supplementary Table S2]. For those miRNAs with 0 sequence read, their copy number was designated as 0.1 for log10 conversion. Dots represent individual miRNAs. Sample size (n), correlation coefficient (ρ), p-value, and standard error (s) are indicated.