>Tgu-Mir-181-P1a_loop
UUGGAAUUAAAGUGAAA
>Tgu-Mir-181-P1b_loop
UUGAGAACUAGAAAAA
>Tgu-Mir-181-P2a_loop
UAACUAUGUGGACAAG
>Tgu-Mir-181-P2b_loop
UUCAUUUCUAUCAA