3FWP:
reference: The X-ray structure of Salmonella typhimurium uridine nucleoside phosphorylase complexed with 2,2'-anhydrouridine, phosphate and potassium ions at 1.86 A resolution., Lashkov AA, Zhukhlistova NE, Gabdoulkhakov AH, Shtil AA, Efremov RG, Betzel C, Mikhailov AM, Acta Crystallogr D Biol Crystallogr. 2010 Jan;66(Pt 1):51-60. Epub 2009, Dec 21. PMID: 20057049

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