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 GTGCATTGTAGTTGCATTG ATGTGACAACAATACAACC TGGTAGTTTTCCCTTGTGCATTGTAGTTGCATTGCACTGTTGCATTGTGGGTAATGTGACAACAATACAACCGGGATTTCTGCACAGTCATCATAAATTTG 5 0 5' arm Ciona_intestinalis mirbase mir-33 7e-30 aae-mir-33 0.000001 -31.5 ((((((...((((...((.(((((.((..((((((.(..(......)..)))))))..)).))))).))...))))...)))).))............... (-31.50)