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 GTACATACTTCTTTATGTACC ATGTAAAGAAGTATGTATTT TTATATCTACCTGTTTGGAGTACATACTTCTTTATGTACCCATATGAACATACAATGCTATGGAATGTAAAGAAGTATGTATTTTTATCAGGTACTGAAC TGAGCAGTACTTCCAATGACTAATGGTCCACACAATGGAATTCTAGCAGTTGTACATGAATAAACCCTCAATGTTATGTGTCGCAAGCCTCTACTAGAGGCAATTAGACCTGCTTTTTTTCCCAGTGATTATTTGGTATATGAGTTTTCTTTGCAGCGTCATCATCAGCCAAAGAGCTTATATCTACCTGTTTGGAGTACATACTTCTTTATGTACCCATATGAACATACAATGCTATGGAATGTAAAGAAGTATGTATTTTTATCAGGTACTGAACACCGGCCAAAGCACATTCTTTGGAGACAAAAGTCGAGAGTGACATCAGTGTGCAATGGGTTTTCCGAGTGACTTTCATTTTTTTTTTTCCCTTTTGG 2 0 5' arm Xenopus_tropicalis mirnest mir-1 5e-37 xtr-mir-1a-1 2e-42 -31.7 .......((((((...(((((((((((((((((((((..(((((..............))))).)))))))))))))))))))))...))))))...... (-31.7)