This gene encodes a uridine phosphorylase, an enzyme that catalyzes the reversible phosphorylation of uridine (or 2'- deoxyuridine) to uracil and ribose-1-phosphate (or deoxyribose-1-phosphate). The encoded enzyme functions in the degradation and salvage of pyrimidine ribonucleosides.,UPP1, UDRPASE, UP, UPASE, UPP, uridine phosphorylase 1,Epigenetics & Nuclear Signaling,Cancer,Tumor biomarkers,Signal Transduction,Endocrine & Metabolism,Nucleotide metabolism,Purine and pyrimidine synthesis,UPP1