>1QPI_1|Chain A[auth M]|DNA (5'-D(*CP*CP*TP*AP*TP*CP*AP*AP*TP*GP*AP*TP*AP*GP*A)-3')|null CCTATCAATGATAGA >1QPI_2|Chain B[auth N]|DNA (5'-D(*TP*CP*TP*AP*TP*CP*AP*TP*TP*GP*AP*TP*AP*GP*G)-3')| TCTATCATTGATAGG >1QPI_3|Chain C[auth A]|PROTEIN (TETRACYCLINE REPRESSOR)|Escherichia coli (562) LNRESVIDAALELLNETGIDGLTTRKLAQKLGIEQPTLYWHVKNKRALLDALAVEILARHHDYSLPAAGESWQSFLRNNAMSFRRALLRYRDGAKVHLGTRPDEKQYDTVETQLRFMTENGFSLRDGLYAISAVSHFTLGAVLEQQEHTAALTDRPAAPDENLPPLLREALQIMDSDDGEQAFLHGLESLIRGFEVQLTALLQ