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 TGTCAGGACGACAAAAGCTCTGA AGAGTTTTGTTGCCCCGACTCC AGAGGTTCACAAGTGGTGTCAGGACGACAAAAGCTCTGAGTTCTGTTAACATCAGAGTTTTGTTGCCCCGACTCCTTTTGTGGTCA 3 1 5' arm Branchiostoma_floridae mirbase 100 bfl-mir-4872c-1 2e-32 -34.7 ....(..((((((.((.(((.((.((((((((.(((((((((.....))).)))))))))))))).)).))).)).))))))..). (-34.70)