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. 2013 Jun;19(6):740–751. doi: 10.1261/rna.035279.112

FIGURE 2.

FIGURE 2.

Secondary structural characteristics of known MIRNAs from miRBase (version 19). (A) Cumulative fraction of the number of base pairs in the hairpins of miRBase MIRNAs, separated by kingdom. Dotted lines and text indicate default parameter settings for ShortStack 0.4.1 for the indicated miRtypes. (B) As in A for the fraction of stem nucleotides paired. (C) As in A for the ΔG per stem nt. (D) As in A for loop lengths. (E) As in A for the number of unpaired mature miRNA nt in the miRNA/miRNA* duplex. (F) Fraction of miRBase hairpins for the indicated kingdoms that pass the default ShortStack structural criteria for miRType animal (Metazoa, Viruses) or plant (Viridiplantae).