>Mmu-Mir-504-v1_pre
AGACCCUGGUCUGCACUCUAUCUGUAAACUUACUGAAGGGAGAGCAGGGCAGGGUUUCC
>Mmu-Mir-504-v2_pre
GACCCUGGUCUGCACUCUAUCUGUAAACUUACUGAAGGGAGAGCAGGGCAGGGUUUC