>5O6T_1|Chains A, B|E3 ubiquitin-protein ligase XIAP|Homo sapiens (9606) GSEISTEEQLRRLQEEKLCKICMDRNIAIVFVPCGHLVTCKQCAEAVDKCPMCYTVITFKQKIFMS >5O6T_2|Chains C, D|Polyubiquitin-B|Homo sapiens (9606) GSMQILVTTISAETIRLEVEPSDTIENVKAKIQDKEGIPPDQQRLFFEGKQLEDGRTLSDYNINKKSTLLLVVKFHRVAS