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 ATAGGGCTTTCTATTTTGTGCT CGACAAAATAAAAATCCTGATAA AAGCGTTTTTATAGGGCTTTCTATTTTGTGCTGTTTTCTTTATGCGACAAAATAAAAATCCTGATAAAAACGTCT 4 1 5' arm Branchiostoma_floridae mirbase 100 bfl-mir-4875c 0.000003 -22.1 ..((((((((((.(((.(((.((((((((((............)).)))))))).))).))).)))))))))).. (-22.10)