thymine or uracil + 2-deoxy-D-ribose 1-phosphate <=> thymidine or deoxyuridine + orthophosphate [TYMP] uracil + (deoxy)ribose 1-phosphate <=> (deoxy)uridine + orthophosphate [UPP] cytidine or uridine + ATP => CMP or UMP + ADP [UCK1] cytidine or uridine + ATP => CMP or UMP + ADP [UCK2] phosphorylation of 2'-Deoxythymidine to dTMP deoxycytidine, thymidine, or deoxyuridine + ATP => dCMP, TMP, or dUMP + ADP [TK2] (2'-deoxy)cytidine + ATP => (d)CMP + ADP [DCK] deamination of 2'-Deoxycytidine to 2'-Deoxyuridine PathwayStep2254 PathwayStep2255 PathwayStep2253 PathwayStep2260 PathwayStep2257 PathwayStep2256 PathwayStep2259 PathwayStep2258 Pyrimidine salvage reactions Authored: Jassal, B, 2003-06-17 09:00:25 GENE ONTOLOGYGO:0043097 ISBN0079130356 In pyrimidine salvage reactions, nucleosides and free bases generated by DNA and RNA breakdown are converted back to nucleotide monophosphates, allowing them to re-enter the pathways of pyrimidine biosynthesis (interconversion). Reactome Database ID Release 4373614 Reactome, http://www.reactome.org ReactomeREACT_655