mature_miRNA miRNA* pre-miRNA EST_contig mismatches bulges arm species source_database RFAM_best_hit RFAM_lowest_evalue miRBase_best_hit miRBase_lowest_evalue folding_energy secondary_structure TAAATGATTTATATTTACAG TAAATATAATGTCATTTATACATTATTTATGCAATAAATGATTTATATTTACAG 3 1 3' arm Ciona_intestinalis mirbase 100 cin-mir-4204 7e-25 -12.3 (((((((((.(((((((((.(((.....)))..))))))))))))))))))... (-12.30)