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 TATCACAGCCATTTTGACGAGT GCGTCAAAGTGACTGTGAACTATGTG TTAGCGCGTCAAAGTGACTGTGAACTATGTGGATTTGACTTCATATCACAGCCATTTTGACGAGTTTG 2 4 3' arm Drosophila_erecta mirbase mir-2 1e-24 dme-mir-13b-2 6e-26 -26.1 ..(((.((((((((((.((((((....((((((......)))))))))))).)))))))))).))).. (-26.10)