The Crystal Structure of Streptococcus pyogenes Uridine Phosphorylase Reveals a Distinct Subfamily of Nucleoside Phosphorylases.
Tran, T.H., Christoffersen, S., Allan, P.W., Parker, W.B., Serra, I., Terreni, M., Ealick, S.E.(2011) Biochemistry 50: 6549-6558
- PubMed: 21707079 
- DOI: 10.1021/bi200707z
- Primary Citation of Related Structures:  
3QPB - PubMed Abstract: 
Uridine phosphorylase (UP), a key enzyme in the pyrimidine salvage pathway, catalyzes the reversible phosphorolysis of uridine or 2'-deoxyuridine to uracil and ribose 1-phosphate or 2'-deoxyribose 1-phosphate. This enzyme belongs to the nucleoside phosphorylase I superfamily whose members show diverse specificity for nucleoside substrates ...