Mechanism for exclusion of 5-fluorouracil from DNA

Ingraham, H.A.; Tseng, B.Y.; Goulian, M.

Cancer Research 40(4): 998-1001

1980


ISSN/ISBN: 0008-5472
PMID: 6101994
Document Number: 158331
5-Fluorodeoxyuridine 5'-triphosphate is hydrolyzed by the enzyme deoxyuridine triphosphate diphosphohydrolase (EC 3.6.1.23). Uracil-DNA glycosylase removes 5-fluorouracil (FUra) from FUra-containing DNA similar to its removal of uracil from uracil-containing DNA. The absence of FUra in DNA following exposure of cells to FUra can be explained by the activities of these two enzymes.

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