>2kwu_A mol:protein length:50 DNA polymerase iota GSPEFDSAEEKLPFPPDIDPQVFYELPEEVQKELMAEWERAGAARPSAHR >2kwu_B mol:protein length:76 Ubiquitin MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDY NIQKESTLHLVLRLRGG >2kwu_B mol:protein length:76 Ubiquitin MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDY NIQKESTLHLVLRLRGG