1WET: Structure Of The Purr-Guanine-Purf Operator Complex
reference: The X-ray structure of the PurR-guanine-purF operator complex reveals the contributions of complementary electrostatic surfaces and a water-mediated hydrogen bond to corepressor specificity and binding affinity., Schumacher MA, Glasfeld A, Zalkin H, Brennan RG, J Biol Chem 1997 Sep 5;272(36):22648-53. PMID: 9278422

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