Thymidylate Synthase (TS) (EC 220.127.116.11) converts deoxyuridine monophosphate (dUMP) to deoxythymidine monophosphate (dTMP), which is essential for DNA biosynthesis. TS is a critical target for the fluoropyrimidines, an important group of antineoplastic drugs that are widely used in the treatment of solid tumors. Both 5-FU and fluorodeoxyuridine are converted in tumor cells to FdUMP which inactivates TS by formation of a ternary covalent complex in the presence of the folate cofactor 5,10-methylenetetrahydrofolate. Expression of TS protein is associated with response to 5-fluorouracil (5-FU) in human colorectal, gastric, head and neck, and breast carcinomas.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: HST422; Thymidylate synthase; TMS; TS; TSase
Gene Aliases: HST422; OK/SW-cl.29; TMS; TS; TYMS