Cytochrome P450-catalyzed dealkylation of atrazine by<i>Rhodococcus</i>sp. strain NI86/21 involves hydrogen atom transfer rather than single electron transfer
作者:Armin H. Meyer、Agnieszka Dybala-Defratyka、Peter J. Alaimo、Inacrist Geronimo、Ariana D. Sanchez、Christopher J. Cramer、Martin Elsner
DOI:10.1039/c4dt00891j
日期:——
CytochromeP450 enzymes are responsible for a multitude of natural transformation reactions. For oxidativeN-dealkylation, single electron (SET) and hydrogen atom abstraction (HAT) have been debated as underlying mechanisms. Combined evidence from (i) product distribution and (ii) isotope effects indicate that HAT, rather than SET, initiates N-dealkylation of atrazine to desethyl- and desisopropylatrazine