1SJ9:
reference: Preliminary investigation of the three-dimensional structure of Salmonella typhimurium uridine phosphorylase in the crystalline state., Dontsova MV, Gabdoulkhakov AG, Molchan OK, Lashkov AA, Garber MB, Mironov AS, Zhukhlistova NE, Morgunova EY, Voelter W, Betzel C, Zhang Y, Ealick SE, Mikhailov AM, Acta Crystallograph Sect F Struct Biol Cryst Commun. 2005 Apr 1;61(Pt, 4):337-40. Epub 2005 Mar 24. PMID: 16511035

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