>6SY4_1|Chains A, B|Tetracycline repressor protein class B from transposon Tn10|Escherichia coli (562) MSRLDKSKVINSALELLNEVGIEGLTTRKLAQKLGVEQPTLYWHVKNKRALLDALAIEMLDRHHTHFSPLEGESWQDFLRNNAKSFRNALLSHRDGAKVHLGTRPTEKQYETLENQLAFLTQQGFSLENALYALSAVGHFTLGSVLEDQEHQVAKEERETPTTDSMPPLLRQAIELFDHQGAEPAFLHGLESLIRGFEVQLTALLQIV >6SY4_2|Chain C|TetR-binding aptamer K1 (43-MER)|Escherichia coli (562) GGCCGGAGAAUGUUAUGGCGCGAAAGCGCAGAGAAAACCGGUC