… thymidine to nucleotide form. The thymidine kinase activity of enzyme preparations from
suspension … 9 to 17 X 10-5 @l of thymidine phosphorylated per ,ug DC4 in 10 min at 38” but the …

… levels of thymidine kinase in a variety of neoplasias. Determination of thymidine kinase helps
to … Elevated levels of thymidine kinase must always be interpreted together with a detailed …

… of the regulation of thymidine kinase activity in cycling HeLa … thymidine kinase (Sherley
and Kelly, 1988), we have demonstrated that changes in the levels of thymidine kinase activity …

… Others have demonstrated that thymidine kinase activity is also regulated by post-… of TKl
activity, at least in HL60 cells, where the fluctuation of thymidine kinase activity was related to the …

… activities of enzymes functioning in nucleotide synthesis. Especially striking is the increase
of thymidine kinase activity, … The thymidine kinase isozymes of vertebrate cells have been …

… Thymidine kinase activity in KB cells TdR kinase has been shown to undergo periodic
increases and decreases in activity coinciding approximately with the beginning and end of DNA …

… model, on the activity of thymidine kinase (TK) , an enzyme regarded as being essential for
DNA synthesis and cell division. Our results indicate that the TK activity is adversely affected …

… and adult thymidine kinase [5]. … thymidine kinase in the cell: thymidine triphosphate (TTP),
the product of the further phosphorylation of thymidine, acts as an inhibitor to thymidine kinase…

… Anti-sense thymidine kinase (TK) RNA was expressed as part of a chimeric dihydrofolate …
In several cell lines expressing high levels of anti-sense TK RNA, thymidine kinase activity was …

… Thymidine kinase activity in sonicated soluble preparations obtained from normal and … of
the competitive type (with thymidine). The 'apparent' Kmfor thymidine and the Kt for TTP and d-…