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 GTGGCTGTCCCTGGAGGTGGG CAGTCTCTAGTGAGAGAGCCATGG TCACCCCAGTCTCTAGTGAGAGAGCCATGGCGGCAGGGGCGTGGCTGTCCCTGGAGGTGGGACTG 1 3 3' arm Bos_taurus mirbase 100 bta-mir-2902-1 2e-31 -32.7 ....((((.(((((((.(.((.(((((((.(......).))))))).)))))))))))))).... (-32.70)