>Xla-Mir-221-P1a3_loop
UGUAUUUCUGUCAGC
>Xla-Mir-221-P1a4_loop
UGUAUUUCUGUCAGC
>Xla-Mir-221-P2a3_loop
GUUUGCAAAGCAAC
>Xla-Mir-221-P2a4_loop
GUUUGUAAAUCAAC