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 GTGAGTCTCTAGGGGATTAGC TAATCCCTGAACGACTTGCAG GTGAGTCTCTAGGGGATTAGCAAGCTATAATTTCTCACTTAATCCCTGAACGACTTGCAG 7 0 5' arm Drosophila_melanogaster mirbase 100 100 -18.47 (..((((....(((((((((..................)))))))))....))))..).. (-18.47)