previous studies have indicated that deoxycytidine kinase ( dck ) is requisite and rate limiting in the phosphorylation of 1-beta-d-arabinofuranosylcytosine ( ara-c ) and 9-beta-d-arabinofuranosyl-2-fluoroadenine ( f-ara-a ) on the pathway to their respective cytotoxic 5'-triphosphates .
C0011486
deoxycytidine kinase
C0031715
phosphorylation