>2N2K_1|Chain A|ubiquitin|Homo sapiens (9606) MQIFVKTLTGKTITLEVEPSDTIECVKAKIQDKEGIPPDQQRLIFAGCQLEDGRTLSDYNIQKESTLHLVLRLRGG >2N2K_2|Chain B|ubiquitin|Homo sapiens (9606) MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVL