>4XKL_1|Chains A, C|Ubiquitin|Homo sapiens (9606) GPGSMQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGG >4XKL_2|Chains B, D|Calcium-binding and coiled-coil domain-containing protein 2|Homo sapiens (9606) QMQPLCFNCPICDKIFPATEKQIFEDHVFCHSL