>2KEK_1|Chains A, B|Lactose operon repressor|Escherichia coli (83333) MKPVTLYDVAEYAGVSYQTVSRVVNQASHVSAKTREKVEAAMAELNYIPNRCAQQLAGKQSL >2KEK_2|Chain C|DNA (5'-D(*CP*GP*GP*CP*AP*GP*TP*GP*AP*GP*CP*GP*CP*AP*AP*CP*GP*CP*AP*AP*TP*TP*C)-3')| CGGCAGTGAGCGCAACGCAATTC >2KEK_3|Chain D|DNA (5'-D(P*GP*AP*AP*TP*TP*GP*CP*GP*TP*TP*GP*CP*GP*CP*TP*CP*AP*CP*TP*GP*CP*CP*G)-3')| GAATTGCGTTGCGCTCACTGCCG