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 TCCAAAGGGATCGCATTGATCC ATCATGCGATCTCTTCGGA TCCAAAGGGATCGCATTGATCCTGTGTCCCAATTTGAGTCCAATGGGATCATGCGATCTCTTCGGA 1 1 5' arm Nicotiana_tabacum micropc 100 osa-MIR393 0.000003 -31.3 (((.((((((((((((.(((((((((..((.....).)..).)))))))))))))))))))).))) (-31.30)