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 TCCCTGTGGTCTAGTGGTTAG CACTGCTGGTCTGGGGACT AAACCAGAGCTCCCTGTGGTCTAGTGGTTAGAATTCAGCATTTTCACTGCTGGTCTGGGGACTGAGAT 4 2 5' arm Sus_scrofa mirbase tRNA 0.00000001 bta-mir-2476 0.0000002 -20.5 ....(((...(((((..((.((((..((.(((((.....))))).))..)))).)))))))))).... (-20.50)