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 TGAAACTTCTTTAGAAAGGG CATTCTAGGACGTTTTA TGAAACTTCTTTAGAAAGGGCCTGCTTTAGGCTCATTCTAGGACGTTTTA 2 1 5' arm Ciona_intestinalis mirbase 100 cin-mir-4000g 2e-22 -18.8 ((((((.((((.((((.(((((((...))))))).)))))))).)))))) (-18.80)