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 TGAGGTAGTAAGTTGTATTGTT CTATACAACTTACTACTTTCC GTGAGGTAGTAAGTTGTATTGTTGTGGGGTAGGGATATTAGGCCCCAATTAGAAGATAACTATACAACTTACTACTTTCC 2 0 5' arm Pongo_pygmaeus mirbase let-7 4e-34 age-mir-98 4e-40 -31.4 ..(((((((((((((((((.((((((((((...........)))))).........)))).))))))))))))))))).. (-31.40)