>9DNO_2|Chains C[auth D], D[auth E]|ARG-PHE-PHE-NH2|synthetic construct (32630) RFFX >9DNO_1|Chains A, B|E3 ubiquitin-protein ligase UBR1|Homo sapiens (9606) GPLGSQLCGRVFKSGETTYSCRDCAIDPTCVLCMDCFQDSVHKNHRYKMHTSTGGGFCDCGDTEAWKTGPFCVNHEP