4NR3:
reference: Stochastic Gate Dynamics Regulate the Catalytic Activity of Ubiquitination Enzymes., Rout MK, Hodge CD, Markin CJ, Xu X, Glover JN, Xiao W, Spyracopoulos L, J Am Chem Soc. 2014 Dec 5. PMID: 25423605

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