1Z90:
reference: Structure and Dynamics of UDP-Glucose Pyrophosphorylase from Arabidopsis thaliana with Bound UDP-Glucose and UTP., McCoy JG, Bitto E, Bingman CA, Wesenberg GE, Bannen RM, Kondrashov DA, Phillips GN Jr, J Mol Biol. 2007 Feb 23;366(3):830-41. Epub 2006 Nov 21. PMID: 17178129

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