>2XK5_1|Chain A|UBIQUITIN|HOMO SAPIENS (9606) MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGG >2XK5_2|Chain B|UBIQUITIN|HOMO SAPIENS (9606) MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPQQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGG