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 TGATTGAGCCACGTCAATATC TATGACAAGAAGT TGATTGAGCCACGTCAATATCTCATGCTTGCCATGGGTATGACAAGAAGTTG 12 1 5' arm Zea_mays pmrd 100 vvi-MIR171b 0.0005 -10.1 ............((((.((((.((((.....))))))))))))......... (-10.10)