3.5.4.13 dTTP the inhibitor has a regukatory function for the bifunctional enzyme, mechanism of regulation by conformational changes, overview 145 3.5.4.13 dTTP inhibits dCMP deamination, feedback inhibition 145 3.5.4.13 dUTP - 435 3.5.4.13 dUTP inhibition of deamination reaction 435 3.5.4.13 EDTA - 21 3.5.4.13 H4dUMP inhibits both dCTP and dCMP deaminase activities 69258 3.5.4.13 Hg2+ - 33 3.5.4.13 Ni2+ - 38 3.5.4.13 p-chloromercuribenzoate - 43 3.5.4.13 p-hydroxymercuribenzoate - 98