the kinetics of formation of inactive enzyme in the presence of arsonic acids was found to obey a rate law predicted by a two-step mechanism in which a rate-limiting reduction of an arsonic acid to the corresponding arsonous acid by reduced enzyme , e ( sh ) 2 , preceded formation of an inactive binary complex of reduced enzyme and arsonous acid : es2 + nadh + h+ = e ( sh ) 2 + nad+ ;
C0014442
enzyme
C0026741
complex