>Spt-Mir-221-P1a_pri
CAACCUAGAGCUUUGUCGUUGUCUACUGGUCGCUCAGUAGUCAGUGUAGAUUCUGUCUCUUCAAUCAGCAGCUACAUCUGGCUACUGGGUCUCUGGUGGCAUCUUGUGGCAUUUGUCAAGGUA
>Spt-Mir-221-P1b_pri
AGAAGCUCUGGAGACAUGAUGCCAAUGGGCUGCUCAGUAGUUGGUGUAGGAUCUGUCUGACAUUGUUACUAACAGCUACAUCUGAUUACUGGGUCUCCUAUGGCAUCAGCAAUCUGCUGGAAACCUU
>Spt-Mir-221-P2a_pri
UUGGGAAGAAUAUCCAGGAUUGGAGCAUGAACCUGGCAUACAAUGUAGAAUUCUGUGUUCGUUAAGCAACAGCUACAUUGUCUGCUGGGUUUCAAGCAGCCUGGAAAUACAGCAUGAACUCCA