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 CGCGGGAGAAAAGTAGGACATT TGTCCTACTTTTTCCCGCGGT CATTGTGCACCGCGGGAGAAAAGTAGGACATTTCCTCCCACGCGGGATGAGATGTCCTACTTTTTCCCGCGGTGCACATAC 0 1 5' arm Bombyx_mori mirbase 100 bmo-mir-2775b 0.00000002 -61.7 ...((((((((((((((((((.((((((((((((.((((....)))).))))))))))))))))))))))))))))))... (-61.70)