[HTML][HTML] Application of microbial 3-ketosteroid Δ1-dehydrogenases in biotechnology

A Rohman, BW Dijkstra - Biotechnology Advances, 2021 - Elsevier
Ketosteroid Δ 1-dehydrogenase catalyzes the 1 (2)-dehydrogenation of 3-ketosteroid
substrates using flavin adenine dinucleotide as a cofactor. The enzyme plays a crucial role …

[HTML][HTML] The role and mechanism of microbial 3-ketosteroid Δ1-dehydrogenases in steroid breakdown

A Rohman, BW Dijkstra - The Journal of Steroid Biochemistry and …, 2019 - Elsevier
Ketosteroid Δ 1-dehydrogenases are FAD-dependent enzymes that catalyze the introduction
of a double bond between the C1 and C2 atoms of the A-ring of 3-ketosteroid substrates …

Highly Efficient Enzymatic Synthesis of C6-Substituted Δ1-3-Ketosteroids Enabled by Finely Tuning the Substrate Binding of 3-Ketosteroid-Δ1-Dehydrogenase

Y Wang, R Zhang, X Chen, Z Yang, J Feng… - ACS Sustainable …, 2024 - ACS Publications
Enzymatic Δ1-dehydrogenation mediated by 3-ketosteroid-Δ1-dehydrogenases (Δ1-KstDs,
EC 1.3. 99.4) offers an attractive method to access pharmaceutically important Δ1-3 …

iTRAQ-Based Quantitative Proteomic Analysis of Arthrobacter simplex in Response to Cortisone Acetate and Its Mutants with Improved Δ1-Dehydrogenation …

Y Wu, J Ma, J Shi, S Cao, J Luo, T Zheng… - Journal of Agricultural …, 2023 - ACS Publications
Arthrobacter simplex is extensively used for cortisone acetate (CA) biotransformation in
industry, but the Δ1-dehydrogenation molecular fundamental remains unclear. Herein, the …

Crystal structure and site-directed mutagenesis of 3-ketosteroid Δ1-dehydrogenase from Rhodococcus erythropolis SQ1 explain its catalytic mechanism

A Rohman, N Van Oosterwijk… - Journal of Biological …, 2013 - ASBMB
3-Ketosteroid Δ 1-dehydrogenases are FAD-dependent enzymes that catalyze the 1, 2-
desaturation of 3-ketosteroid substrates to initiate degradation of the steroid nucleus. Here …

Enzymatic Δ1-Dehydrogenation of 3-Ketosteroids—Reconciliation of Kinetic Isotope Effects with the Reaction Mechanism

M Glanowski, P Wójcik, M Procner, T Borowski… - ACS …, 2021 - ACS Publications
Δ1-Dehydrogenation of 3-ketosteroids catalyzed by flavin adenine dinucleotide (FAD)-
dependent 3-ketosteroid dehydrogenases (Δ1-KSTD) is a crucial step in steroid degradation …

Identification, Biological Characteristics, and Active Site Residues of 3-Ketosteroid Δ1-Dehydrogenase Homologues from Arthrobacter simplex

JM Luo, HL Cui, HC Jia, F Li, HJ Cheng… - Journal of Agricultural …, 2020 - ACS Publications
3-Ketosteroid Δ1-dehydrogenase (KsdD) is the key enzyme responsible for Δ1-
dehydrogenation, which is one of the most valuable reactions for steroid catabolism …

Focused mutagenesis in non-catalytic cavity for improving catalytic efficiency of 3-ketosteroid-Δ1-dehydrogenase

Y Zhang, M Liu, H Wang, J Lin, F Chen - Molecular Catalysis, 2022 - Elsevier
Non-catalytic sites are commonly present in many enzymes, but how to classify and
modulate such sites for activity improvement is not well-explored. Herein a non-catalytic …

Engineering of 3-ketosteroid-∆1-dehydrogenase based site-directed saturation mutagenesis for efficient biotransformation of steroidal substrates

S Mao, JW Wang, F Liu, Z Zhu, D Gao, Q Guo… - Microbial Cell …, 2018 - Springer
Background Biosynthesis of steroidal drugs is of great benefit in pharmaceutical
manufacturing as the process involves efficient enzymatic catalysis at ambient temperature …

Universal capability of 3-ketosteroid Δ1-dehydrogenases to catalyze Δ1-dehydrogenation of C17-substituted steroids

P Wójcik, M Glanowski, AM Wojtkiewicz… - Microbial Cell …, 2021 - Springer
Abstract Background 3-Ketosteroid Δ1-dehydrogenases (KSTDs) are the enzymes involved
in microbial cholesterol degradation and modification of steroids. They catalyze …