Directed evolution unlocks oxygen reactivity for a nicotine-degrading flavoenzyme

M Dulchavsky, R Mitra, K Wu, J Li, K Boer, X Liu… - Nature Chemical …, 2023 - nature.com
The flavoenzyme nicotine oxidoreductase (NicA2) is a promising injectable treatment to aid
in the cessation of smoking, a behavior responsible for one in ten deaths worldwide. NicA2 …

Dehydrogenase versus oxidase function: the interplay between substrate binding and flavin microenvironment

TB Guerriere, A Vancheri, I Ricotti, SA Serapian… - ACS …, 2025 - ACS Publications
Redox enzymes, mostly equipped with metal or organic cofactors, can vary their reactivity
with oxygen by orders of magnitude. Understanding how oxygen reactivity is controlled by …

Rational design of a flavoenzyme for aerobic nicotine catabolism

H Hu, Z Xu, Z Zhang, P Song, F Stull, P Xu, H Tang - Mbio, 2024 - journals.asm.org
Enzymatic therapy with nicotine-degrading enzyme is a new strategy in treating nicotine
addiction, which can reduce nicotine concentrations and weaken withdrawal in the rat …

Binding interface and electron transfer between nicotine oxidoreductase and its cytochrome c electron acceptor

EJ Mumby, JA Willoughby Jr, C Vasquez… - Biochemistry, 2022 - ACS Publications
The enzyme nicotine oxidoreductase (NicA2) is a member of the flavoprotein amine oxidase
family that uses a cytochrome c protein (CycN) as its oxidant instead of dioxygen, which is …

Characterization and Improvement of a Nicotine-Degrading Flavoenzyme

M Dulchavsky - 2024 - deepblue.lib.umich.edu
Nicotine oxidoreductase (NicA2) is a flavin-dependent enzyme that has the ability to
catalyze oxidation of nicotine to N-methylmyosmine. Though nicotine is a psychoactive …

Characterization of Shinella 6-hydroxy-(L)-nicotine oxidase (6HLNO-SE)

K Funckes - 2023 - scholarworks.wmich.edu
hydroxy-(L)-nicotine oxidase, isolated from the organism Shinella sp. HZN7 (6HLNO-SE), is
an enzyme that during the catabolism of nicotine catalyzes the oxidation of (S)-6 …