>2KEJ_1|Chains A, B|Lactose operon repressor|Escherichia coli (83333)
MKPVTLYDVAEYAGVSYQTVSRVVNQASHVSAKTREKVEAAMAELNYIPNRCAQQLAGKQSL
>2KEJ_2|Chain C|DNA (5'-D(*GP*AP*AP*AP*TP*GP*TP*GP*AP*GP*CP*GP*AP*GP*TP*AP*AP*CP*AP*AP*CP*CP*G)-3')|
GAAATGTGAGCGAGTAACAACCG
>2KEJ_3|Chain D|DNA (5'-D(P*CP*GP*GP*TP*TP*GP*TP*TP*AP*CP*TP*CP*GP*CP*TP*CP*AP*CP*AP*TP*TP*TP*C)-3')|
CGGTTGTTACTCGCTCACATTTC