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 GCGACCCATACTTGGTTTCAAA CGAAATCAAGTGTGGGTATGACCT ATGCCTCCGAAATCAAGTGTGGGTATGACCTTGTTGTTTTAATCCTAGGCGACCCATACTTGGTTTCAAAGGACT 2 2 3' arm Petromyzon_marinus mirbase mir-551 0.0002 gga-mir-551 0.00001 -30.26 ...(((..((((((((((((((((.((.(((...............)))))))))))))))))))))..)))... (-30.26)