>5XPK_1|Chain A|Ubiquitin|Homo sapiens (9606) MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGG >5XPK_2|Chain B|D-ubiquitin|Homo sapiens (9606) MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGG