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 TGAGATGAAGCACTGTAACTCC GGGTGCAGTGCTTTACCTCTGG TACCCGGGGGTGCAGTGCTTTACCTCTGGTTGGGTTGAGAGTCTGAGATGAAGCACTGTAACTCCGGATG 3 0 3' arm Petromyzon_marinus mirbase mir-143 0.00001 xtr-mir-143 0.000003 -33.8 ...((((((.((((((((((((.(((.(..(........)..).))).)))))))))))).))))))... (-33.80)