Table 3

Effect of deoxycytidine analog triphosphates on dCMP deaminase activity in the absence of dCTP

TriphosphateRelative Rate (20 μM)
%
dCTP100
dFdCTP<0.1
AraCTP<0.1
ddCTP<0.1
l-ddCTP<0.1
l-SddCTP<0.1
l-FSddCTP<0.1
l-Fd4CTP<0.1
l-FSddCTP<0.1

dCMP concentration was 50 μM; 0.9 U of enzyme was used for every reaction. The rate was normalized as the percentage of dCTP sample. Values are presented as mean of three independent experiments.