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 AAGTTGGAAGTTGATTGACT TTAATTGACTCCAACTA AAGTTGGAAGTTGATTGACTGGGTTTGAAATATACCAGTTAATTGACTCCAACTA 3 1 5' arm Ciona_intestinalis mirbase 100 cin-mir-4077a 7e-19 -26.6 .(((((((.((..(((((((((............)))))))))..))))))))). (-26.60)