>9PG4_1|Chain A|E3 ubiquitin-protein ligase UBR2|Homo sapiens (9606) PLGSLCGRVFKVGEPTYSCRDCAVDPTCVLCMECFLGSIHRDHRYRMTTSGGGGFCDCGDTEAWKEGPYCQKHE >9PG4_2|Chain B[auth C]|AF23 peptide|synthetic construct (32630) XYFX