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 CAAGTCTTATTTGAGCACCTGTT AGGTCCTCAATAAGTATTTGTTGAAAGAATAAATAAACCAACAAGTCTTATTTGAGCACCTGTTATGTG 4 2 3' arm Pongo_pygmaeus mirbase 100 hsa-mir-1264 1e-33 -19.16 ((((.(((((((((.((((((((...............)))))))))))).))))).))))........ (-19.16)