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
TGAGGTAGTAGGTTATATCAGT TGTATAACCAACTAGCTTTCT CAAAGCCGCTCAAAATGAGGTAGTAGGTTATATCAGTTGAATATTTTACCATGGTGATAACTGTATAACCAACTAGCTTTCTTAAACGGTTTACTATCAGCA  3 1 5' arm Ciona_savignyi mirbase let-7 2.0E-36 cin-let-7c 5.0E-9 -28.86 ..((((((........(((.((((.(((((((.((((((......((((....))))))))))))))))).)))).))).......)))))).......... (-28.86)