ncRNA hpRNA Hairpin RNA An RNA comprising an extended inverted repeat, the stem of which is typically much longer than that of miRNA precursors and can be up to 400 base pairs in length. hpRNAs are processed by Dicer-2 to generate endogenous short interfering RNAs (siRNAs). SO:0002356 See GitHub Issue #518. evan 2021-10-07T17:35:56Z sequence