2J4J:
reference: Structural and enzymatic investigation of the Sulfolobus solfataricus uridylate kinase shows competitive UTP inhibition and the lack of GTP stimulation., Jensen KS, Johansson E, Jensen KF, Biochemistry. 2007 Mar 13;46(10):2745-57. Epub 2007 Feb 13. PMID: 17297917

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