Catalytic divergencies in the mechanism of L-arginine hydroxylating nonheme iron enzymes

HS Ali, SP de Visser - Frontiers in Chemistry, 2024 - frontiersin.org
Many enzymes in nature utilize a free arginine (L-Arg) amino acid to initiate the biosynthesis
of natural products. Examples include nitric oxide synthases, which generate NO from L-Arg …

Biological formation of ethylene

RP Hausinger, SBJS Rifayee, MG Thomas… - RSC chemical …, 2023 - pubs.rsc.org
This review summarizes the structures, biochemical properties, and mechanisms of two
major biological sources of ethylene, the ethylene-forming enzyme (EFE) and 1 …

Rational redesign of enzyme via the combination of quantum mechanics/molecular mechanics, molecular dynamics, and structural biology study

HY Lin, X Chen, J Dong, JF Yang, H Xiao… - Journal of the …, 2021 - ACS Publications
Increasing demands for efficient and versatile chemical reactions have prompted
innovations in enzyme engineering. A major challenge in engineering α-ketoglutarate …

Discovery of a Ni2+-dependent guanidine hydrolase in bacteria

D Funck, M Sinn, JR Fleming, M Stanoppi, J Dietrich… - Nature, 2022 - nature.com
Nitrogen availability is a growth-limiting factor in many habitats, and the global nitrogen
cycle involves prokaryotes and eukaryotes competing for this precious resource. Only some …

Cluster model study into the catalytic mechanism of α-ketoglutarate biodegradation by the ethylene-forming enzyme reveals structural differences with nonheme iron …

CCG Yeh, S Ghafoor, JK Satpathy, T Mokkawes… - ACS …, 2022 - ACS Publications
Ethylene is an important signaling molecule in plants that triggers the growth of leaves,
flowers, and fruits. One of the enzymes involved in the biosynthesis of ethylene is the …

Optimized Substrate Positioning Enables Switches in the C–H Cleavage Site and Reaction Outcome in the Hydroxylation–Epoxidation Sequence Catalyzed by …

ES Wenger, RJ Martinie, R Ushimaru… - Journal of the …, 2024 - ACS Publications
Hyoscyamine 6β-hydroxylase (H6H) is an iron (II)-and 2-oxoglutarate-dependent (Fe/2OG)
oxygenase that produces the prolifically administered antinausea drug, scopolamine. After …

Coordination dynamics of iron center enables the C–H bond activation: QM/MM insight into the catalysis of hydroxyglutarate synthase (HglS)

Y Fu, B Wang, Z Cao - Journal of Catalysis, 2023 - Elsevier
Abstract Hydroxyglutarate synthase (HglS) from Pseudomonas putida is an iron (II)
dependent non-heme oxygenase, which is responsible for the biodegradation of 2 …

Biosynthesis of macrocyclic peptides with C-terminal β-amino-α-keto acid groups by three different metalloenzymes

DT Nguyen, L Zhu, DL Gray, TJ Woods… - ACS Central …, 2024 - ACS Publications
Advances in genome sequencing and bioinformatics methods have identified a myriad of
biosynthetic gene clusters (BGCs) encoding uncharacterized molecules. By mining …

Steric perturbation of the Grob-like final step of ethylene-forming enzyme enables 3-hydroxypropionate and propylene production

EJ Burke, RA Copeland, Y Dixit, C Krebs… - Journal of the …, 2024 - ACS Publications
Ethylene-forming enzyme (EFE) is an iron (II)-dependent dioxygenase that fragments 2-
oxoglutarate (2OG) to ethylene (from C3 and C4) and 3 equivs of carbon dioxide (from C1 …

Can an external electric field switch between ethylene formation and l-arginine hydroxylation in the ethylene forming enzyme?

SS Chaturvedi, SBJS Rifayee, R Ramanan… - Physical Chemistry …, 2023 - pubs.rsc.org
The non-heme Fe (II) and 2-oxoglutarate (2OG) dependent ethylene-forming enzyme (EFE)
catalyzes both ethylene generation and L-Arg hydroxylation. Despite experimental and …