Enzymatic control of product distribution in terpene synthases: insights from multiscale simulations

K Raz, S Levi, PK Gupta, DT Major - Current opinion in biotechnology, 2020 - Elsevier
In this opinion, we review some recent work on terpene biosynthesis using multiscale
simulation approaches, with special focus on contributions from our group. Terpene …

[HTML][HTML] Challenges in computational studies of enzyme structure, function and dynamics

ATP Carvalho, A Barrozo, D Doron, AV Kilshtain… - Journal of Molecular …, 2014 - Elsevier
In this review we give an overview of the field of Computational enzymology. We start by
describing the birth of the field, with emphasis on the work of the 2013 chemistry Nobel …

Electrostatically Guided Dynamics The Root of Fidelity in a Promiscuous Terpene Synthase?

DT Major, M Weitman - Journal of the American Chemical Society, 2012 - ACS Publications
Terpene cyclases are responsible for the initial cyclization cascade in the multistep
synthesis of more than 60 000 known natural products. This abundance of compounds is …

A benchmark study of quantum mechanics and quantum mechanics-molecular mechanics methods for carbocation chemistry

S Zev, PK Gupta, E Pahima… - Journal of Chemical Theory …, 2021 - ACS Publications
Carbocations play key roles in classical organic reactions and have also been implicated in
several enzyme families. A hallmark of carbocation chemistry is multitudes of competing …

Connecting protein conformational dynamics with catalytic function as illustrated in dihydrofolate reductase

Y Fan, A Cembran, S Ma, J Gao - Biochemistry, 2013 - ACS Publications
Combined quantum mechanics/molecular mechanics molecular dynamics simulations
reveal that the M20 loop conformational dynamics of dihydrofolate reductase (DHFR) is …

The impression of a nonexisting catalytic effect: the role of CotB2 in guiding the complex biosynthesis of cyclooctat-9-en-7-ol

K Raz, R Driller, N Dimos, M Ringel… - Journal of the …, 2020 - ACS Publications
Terpene synthases generate terpenes employing diversified carbocation chemistry,
including highly specific ring formations, proton and hydride transfers, and methyl as well as …

Chemical control in the battle against fidelity in promiscuous natural product biosynthesis: the case of trichodiene synthase

M Dixit, M Weitman, J Gao, DT Major - ACS catalysis, 2017 - ACS Publications
Terpene cyclases catalyze the highly stereospecific molding of polyisoprenes into terpenes,
which are precursors to most known natural compounds. The isoprenoids are formed via …

Catalytic control in terpenoid cyclases: multiscale modeling of thermodynamic, kinetic, and dynamic effects

DT Major, Y Freud, M Weitman - Current Opinion in Chemical Biology, 2014 - Elsevier
Highlights•Understanding promiscuity in terpene synthases using multi-scale simulations.•
Promiscuity is a result of the inherent reactivity of carbocations.•Chemical control by active …

Rapid convergence of energy and free energy profiles with quantum mechanical size in quantum mechanical–molecular mechanical simulations of proton transfer in …

S Das, K Nam, DT Major - Journal of chemical theory and …, 2018 - ACS Publications
In recent years, a number of quantum mechanical–molecular mechanical (QM/MM) enzyme
studies have investigated the dependence of reaction energetics on the size of the QM …

Slow-starter enzymes: role of active-site architecture in the catalytic control of the biosynthesis of taxadiene by taxadiene synthase

T Ansbacher, Y Freud, DT Major - Biochemistry, 2018 - ACS Publications
Taxadiene synthase (TXS) catalyzes the formation of natural product taxa-4 (5), 11 (12)-
diene (henceforth taxadiene). Taxadiene is the precursor in the formation of Taxol, which is …