Unusual dioxygen-dependent reactions catalyzed by nonheme iron enzymes in natural product biosynthesis

R Ushimaru, I Abe - ACS Catalysis, 2022 - ACS Publications
Nonheme iron-dependent enzymatic reactions play crucial roles in building and modifying
bioactive organic molecules in all major classes of natural product pathways. While the …

Discovery of the Azaserine Biosynthetic Pathway Uncovers a Biological Route for α‐Diazoester Production

D Van Cura, TL Ng, J Huang, H Hager… - Angewandte Chemie …, 2023 - Wiley Online Library
Azaserine is a bacterial metabolite containing a biologically unusual and synthetically
enabling α‐diazoester functional group. Herein, we report the discovery of the azaserine …

[HTML][HTML] Multinuclear non-heme iron dependent oxidative enzymes (MNIOs) involved in unusual peptide modifications

JY Chen, WA van der Donk - Current Opinion in Chemical Biology, 2024 - Elsevier
Multinuclear non-heme iron dependent oxidative enzymes (MNIOs), formerly known as
domain of unknown function 692 (DUF692), are involved in the post-translational …

A single diiron enzyme catalyses the oxidative rearrangement of tryptophan to indole nitrile

S Adak, N Ye, LA Calderone, M Duan, W Lubeck… - Nature …, 2024 - nature.com
Nitriles are uncommon in nature and are typically constructed from oximes through the
oxidative decarboxylation of amino acid substrates or from the derivatization of carboxylic …

Peroxo-Diiron (III/III) as the reactive intermediate for N-hydroxylation reactions in the multidomain metalloenzyme SznF: evidence from molecular dynamics and …

J Liu, Z Wang, X Sang, X Zhang, B Wang - ACS Catalysis, 2023 - ACS Publications
Upon oxygen activation, the non-heme diiron enzymes can generate various active species
for oxidative transformations. In this work, the catalytic mechanism of the diiron active site …

Self-sacrificial tyrosine cleavage by an Fe:Mn oxygenase for the biosynthesis of para-aminobenzoate in Chlamydia trachomatis

OM Manley, HN Phan, AK Stewart… - Proceedings of the …, 2022 - National Acad Sciences
Chlamydia protein associating with death domains (CADD) is involved in the biosynthesis of
para-aminobenzoate (pABA), an essential component of the folate cofactor that is required …

The structural and functional investigation into an unusual nitrile synthase

H Li, JW Huang, L Dai, H Zheng, S Dai… - Nature …, 2023 - nature.com
The biosynthesis of neurotoxin aetokthonotoxin (AETX) that features a unique structure of
pentabrominated biindole nitrile involves a first-of-its-kind nitrile synthase termed AetD, an …

Reconstitution of the Final Steps in the Biosynthesis of Valanimycin Reveals the Origin of Its Characteristic Azoxy Moiety

Z Zheng, J Xiong, J Bu, D Ren, YH Lee… - Angewandte …, 2024 - Wiley Online Library
Valanimycin is an azoxy‐containing natural product isolated from the fermentation broth of
Streptomyces viridifaciens MG456‐hF10. While the biosynthesis of valanimycin has been …

Mechanism for the synthesis of medium-chain 1-alkenes from fatty acids catalyzed by binuclear iron UndA decarboxylase

Y Wang, SL Chen - Journal of Catalysis, 2023 - Elsevier
Terminal olefins synthesized by the decarboxylation of fatty acids are important platform
chemicals. PfUndA is a nonheme di-iron oxidase capable of converting medium-chain (C …

Initial Steps in Methanobactin Biosynthesis: Substrate Binding by the Mixed-Valent Diiron Enzyme MbnBC

RJ Jodts, MB Ho, RM Reyes, YJ Park, PE Doan… - Biochemistry, 2024 - ACS Publications
The MbnBC enzyme complex converts cysteine residues in a peptide substrate, MbnA, to
oxazolone/thioamide groups during the biosynthesis of copper chelator methanobactin …