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 AATGGCTTTCATCCTTTGTGA ACACTGATGGGGGTTATTGG CCGTGTCCAATGGCTTTCATCCTTTGTGAATGTCTGAGCACAGTTCACACTGATGGGGGTTATTGGACAAGA 4 1 5' arm Branchiostoma_floridae mirbase 100 bfl-mir-135b-1 2e-35 -32.8 ...((((((((((((..((((...(((((((((......))).))))))..))))..))))))))))))... (-32.80)