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 GGCAAGAAGTCGGCATAGCTG GCTGTGTCACTTCGAGCCAG GTCGAGCCGGTGGCTGGGAAGGCAAGAAGTCGGCATAGCTGTTTGAATAAGATACACGGCTGTGTCACTTCGAGCCAGCTCAATCCGCCGGCTTTCTTCAATTTCAAGATTTGCGGATGCT 2 1 5' arm Bombyx_mori mirbase mir-31 1e-38 dpu-mir-31 0.0004 -51.62 ...((((((((((.((((..(((..(((((.(((((((((((.............))))))))))))))))..)))..))))..))))))))))(((.(((.........))).))).... (-51.62)