>2MRE_1|Chain A|Polyubiquitin-C|Homo sapiens (9606) GSHMQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGG >2MRE_2|Chain B|E3 ubiquitin-protein ligase RAD18|Homo sapiens (9606) GSRQVTKVDCPVCGVNIPESHINKHLDSCLSRE