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 CTTGGCACTGGGAGAATTCAC GGTTCTGCGGGTGCCAAAAT TTCATCTTGGCACTGGGAGAATTCACAGTCGATTACATAATATTCTGTGGTTCTGCGGGTGCCAAAATGTA 3 1 5' arm Drosophila_virilis mirbase mir-263 1e-33 dgr-mir-263b 4e-24 -29.3 ..(((.((((((((.(.(((((.(((((...(((....)))...)))))))))).).)))))))).))).. (-29.30)