... understand the mode of bindingand interference with enzyme catalysis.As the inactivation of any enzyme involved in ametabolic chain will render the whole chain inoperat-ive, the inactivation of any ... of the six proteinsinvolved in pyrimidine de novo synthesis should result in the same profound effect on the pyrimidine nuc-leotide pools in C. albicans. However, in mammaliancell lines, the ... 30 °C, the oxidation of the substrate DHO with the quinone cosub-strate was coupled to the reduction of the chromogen 2,6-di-chloroindophenol. The Km of DHO was determined byvarying the concentration...