Deoxyuridine phosphorylase

In enzymology, a deoxyuridine phosphorylase is an enzyme that catalyzes the chemical reaction

Thus, the two substrates of this enzyme are 2'-deoxyuridine and phosphate, whereas its two products are uracil and 2-deoxy-alpha-D-ribose 1-phosphate.

No enzyme is known to be specific for this reaction, hence the EC number originally assigned to this enzyme function (EC 2.4.2.23) was deleted by the IUBMB in 2013. The reaction is catalysed by EC2.4.2.2, pyrimidine-nucleoside phosphorylase, EC2.4.2.3, uridine phosphorylase, and EC2.4.2.4, thymidine phosphorylase.