4KT5:
reference: Structure of GrlR-GrlA complex that prevents GrlA activation of virulence genes., Padavannil A, Jobichen C, Mills E, Velazquez-Campoy A, Li M, Leung KY, Mok YK, Rosenshine I, Sivaraman J, Nat Commun. 2013 Oct 4;4:2546. doi: 10.1038/ncomms3546. PMID: 24092262

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