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 AAAAGTGCAAATAGTGGTAGGT CTACTCCATTTGCATTTTGGC GAATGAGCGCGCGGGGGAAAAGTGCAAATAGTGGTAGGTAGTGATCACTGCCGTCTGCCTACTCCATTTGCATTTTGGCCTCCGTGCGTCTCGCCG 3 1 5' arm Petromyzon_marinus mirbase 100 100 -51.6 ....(((((((((((((.(((((((((((.(..((((((((((........)).))))))))..))))))))))))..)))))))))).))).... (-51.60)