Experimentally validated miRNAs obtained from the miRBase database.

Abstract

<p>(A) Statistical results of pre-miRNAs carrying experimentally validated miRNAs on their 5' and/or 3' arms. (B) Anatomy of the miRNA duplex in the pre-miRNA hairpin. "miRNA duplex (5p)" and "miRNA duplex (3p)" represent the 5' and 3' strands of the miRNA duplex, respectively. "Loop", "Helix" and "Bulge" are three common structural elements in the secondary structure of pre-miRNAs.</p