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 TGAGGTAGTAGGTTGTATAGTT CTGTACAACCTTCTAGCTTTCC AATCTTTTGTGAATTCGGATTGAGGTAGTAGGTTGTATAGTTGAGAATTACACCTAGACTGGCGAACTGTACAACCTTCTAGCTTTCCCTGAGTCACAAAC 3 0 5' arm Lottia_gigantea mirbase let-7 0.000000000006 pma-let-7a-4 0.00000000008 -36.4 .....(((((((.(((((...(((.(((.(((((((((((((........(.((......)).)))))))))))))).))).)))...)))))))))))). (-36.40)