>2BN5_2|Chain B|U1 SMALL NUCLEAR RIBONUCLEOPROTEIN 70 KDA|DROSOPHILA MELANOGASTER (7227)
RPPPAHHNMFSVPPPPILGRG
>2BN5_1|Chain A|PSI|DROSOPHILA MELANOGASTER (7227)
GADYSAQWAEYYRSVGKIEEAEAIEKTLKNKQN