4PU7:
reference: The bacterial antitoxin HipB establishes a ternary complex with operator DNA and phosphorylated toxin HipA to regulate bacterial persistence., Wen Y, Behiels E, Felix J, Elegheert J, Vergauwen B, Devreese B, Savvides SN, Nucleic Acids Res. 2014 Jul 23. pii: gku665. PMID: 25056321

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