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Li K, Zou H, Tong X, Yang H. Enhanced Photobiocatalytic Cascades at Pickering Droplet Interfaces. J Am Chem Soc 2024; 146:17054-17065. [PMID: 38870463 DOI: 10.1021/jacs.4c01834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Developing new methods to engineer photobiocatalytic reactions is of utmost significance for artificial photosynthesis, but it remains a grand challenge due to the intrinsic incompatibility of biocatalysts with photocatalysts. In this work, photocatalysts and enzymes were spatially colocalized at Pickering droplet interfaces, where the reaction microenvironment and the spatial distance between two distinct catalysts were exquisitely regulated to achieve unprecedented photobiocatalytic cascade reactions. As proof of the concept, ultrathin graphitic carbon nitride nanosheets loaded with Au nanoparticles were precisely positioned in the outer interfacial layer of Pickering oil droplets to produce H2O2 under light irradiation, while enzymes were exactly placed in the inner interfacial layer to catalyze the subsequent biocatalytic oxidation reactions using in situ formed H2O2 as an oxidant. In the alkene epoxidation and thioether oxidation, our interfacial photobiocatalytic cascades showed a 2.0-5.8-fold higher overall reaction efficiency than the photobiocatalytic cascades in the bulk water phase. It was demonstrated that spatial localization of the photocatalyst and the enzyme at Pickering oil droplet interfaces not only provided their respective preferable reaction environments and intimate proximity for rapid H2O2 transport but also protected the enzyme from oxidative inactivation caused by the photogenerated species. These remarkable interfacial effects contributed to the significantly enhanced photobiocatalytic cascading efficiency. Our work presents an innovative photobiocatalytic reaction system with manifold benefits, providing a cutting-edge platform for solar-driven chemical transformations via photobiocatalysis.
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Affiliation(s)
- Ke Li
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Houbing Zou
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
- Shanxi Research Institute of Huairou Laboratory, Taiyuan 030032, China
- Engineering Research Center of the Ministry of Education for Fine Chemicals, Shanxi University, Taiyuan 030006, China
| | - Xili Tong
- National Key Laboratory of High Efficiency and Low Carbon Utilization of Coal, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Hengquan Yang
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
- Shanxi Research Institute of Huairou Laboratory, Taiyuan 030032, China
- Engineering Research Center of the Ministry of Education for Fine Chemicals, Shanxi University, Taiyuan 030006, China
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2
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Dembitsky VM. Naturally Occurring Norsteroids and Their Design and Pharmaceutical Application. Biomedicines 2024; 12:1021. [PMID: 38790983 PMCID: PMC11117879 DOI: 10.3390/biomedicines12051021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 04/29/2024] [Accepted: 05/01/2024] [Indexed: 05/26/2024] Open
Abstract
The main focus of this review is to introduce readers to the fascinating class of lipid molecules known as norsteroids, exploring their distribution across various biotopes and their biological activities. The review provides an in-depth analysis of various modified steroids, including A, B, C, and D-norsteroids, each characterized by distinct structural alterations. These modifications, which range from the removal of specific methyl groups to changes in the steroid core, result in unique molecular architectures that significantly impact their biological activity and therapeutic potential. The discussion on A, B, C, and D-norsteroids sheds light on their unique configurations and how these structural modifications influence their pharmacological properties. The review also presents examples from natural sources that produce a diverse array of steroids with distinct structures, including the aforementioned A, B, C, and D-nor variants. These compounds are sourced from marine organisms like sponges, soft corals, and starfish, as well as terrestrial entities such as plants, fungi, and bacteria. The exploration of these steroids encompasses their biosynthesis, ecological significance, and potential medical applications, highlighting a crucial area of interest in pharmacology and natural product chemistry. The review emphasizes the importance of researching these steroids for drug development, particularly in addressing diseases where conventional medications are inadequate or for conditions lacking sufficient therapeutic options. Examples of norsteroid synthesis are provided to illustrate the practical applications of this research.
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Affiliation(s)
- Valery M Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada
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3
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Dembitsky VM. Steroids Bearing Heteroatom as Potential Drugs for Medicine. Biomedicines 2023; 11:2698. [PMID: 37893072 PMCID: PMC10604304 DOI: 10.3390/biomedicines11102698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
Heteroatom steroids, a diverse class of organic compounds, have attracted significant attention in the field of medicinal chemistry and drug discovery. The biological profiles of heteroatom steroids are of considerable interest to chemists, biologists, pharmacologists, and the pharmaceutical industry. These compounds have shown promise as potential therapeutic agents in the treatment of various diseases, such as cancer, infectious diseases, cardiovascular disorders, and neurodegenerative conditions. Moreover, the incorporation of heteroatoms has led to the development of targeted drug delivery systems, prodrugs, and other innovative pharmaceutical approaches. Heteroatom steroids represent a fascinating area of research, bridging the fields of organic chemistry, medicinal chemistry, and pharmacology. The exploration of their chemical diversity and biological activities holds promise for the discovery of novel drug candidates and the development of more effective and targeted treatments.
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Affiliation(s)
- Valery M Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada
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4
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Sheldon RA, Brady D. Green Chemistry, Biocatalysis, and the Chemical Industry of the Future. CHEMSUSCHEM 2022; 15:e202102628. [PMID: 35026060 DOI: 10.1002/cssc.202102628] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/11/2022] [Indexed: 06/14/2023]
Abstract
In the movement to decarbonize our economy and move away from fossil fuels we will need to harness the waste products of our activities, such as waste lignocellulose, methane, and carbon dioxide. Our wastes need to be integrated into a circular economy where used products are recycled into a manufacturing carbon cycle. Key to this will be the recycling of plastics at the resin and monomer levels. Biotechnology is well suited to a future chemical industry that must adapt to widely distributed and diverse biological chemical feedstocks. Our increasing mastery of biotechnology is allowing us to develop enzymes and organisms that can synthesize a widening selection of desirable bulk chemicals, including plastics, at commercially viable productivities. Integration of bioreactors with electrochemical systems will permit new production opportunities with enhanced productivities and the advantage of using a low-carbon electricity from renewable and sustainable sources.
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Affiliation(s)
- Roger A Sheldon
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg, 2000, South Africa
- Department of Biotechnology, Delft University of Technology, Section BOC, van der Maasweg 9, 2629 HZ, Delft, Netherlands
| | - Dean Brady
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg, 2000, South Africa
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Dembitsky VM. Natural Polyether Ionophores and Their Pharmacological Profile. Mar Drugs 2022; 20:292. [PMID: 35621943 PMCID: PMC9144361 DOI: 10.3390/md20050292] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 02/04/2023] Open
Abstract
This review is devoted to the study of the biological activity of polyether ionophores produced by bacteria, unicellular marine algae, red seaweeds, marine sponges, and coelenterates. Biological activities have been studied experimentally in various laboratories, as well as data obtained using QSAR (Quantitative Structure-Activity Relationships) algorithms. According to the data obtained, it was shown that polyether toxins exhibit strong antibacterial, antimicrobial, antifungal, antitumor, and other activities. Along with this, it was found that natural polyether ionophores exhibit such properties as antiparasitic, antiprotozoal, cytostatic, anti-mycoplasmal, and antieczema activities. In addition, polyethers have been found to be potential regulators of lipid metabolism or inhibitors of DNA synthesis. Further study of the mechanisms of action and the search for new polyether ionophores and their derivatives may provide more effective therapeutic natural polyether ionophores for the treatment of cancer and other diseases. For some polyether ionophores, 3D graphs are presented, which demonstrate the predicted and calculated activities. The data presented in this review will be of interest to pharmacologists, chemists, practical medicine, and the pharmaceutical industry.
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Affiliation(s)
- Valery M Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada
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Hofrichter M, Kellner H, Herzog R, Karich A, Kiebist J, Scheibner K, Ullrich R. Peroxide-Mediated Oxygenation of Organic Compounds by Fungal Peroxygenases. Antioxidants (Basel) 2022; 11:163. [PMID: 35052667 PMCID: PMC8772875 DOI: 10.3390/antiox11010163] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 12/03/2022] Open
Abstract
Unspecific peroxygenases (UPOs), whose sequences can be found in the genomes of thousands of filamentous fungi, many yeasts and certain fungus-like protists, are fascinating biocatalysts that transfer peroxide-borne oxygen (from H2O2 or R-OOH) with high efficiency to a wide range of organic substrates, including less or unactivated carbons and heteroatoms. A twice-proline-flanked cysteine (PCP motif) typically ligates the heme that forms the heart of the active site of UPOs and enables various types of relevant oxygenation reactions (hydroxylation, epoxidation, subsequent dealkylations, deacylation, or aromatization) together with less specific one-electron oxidations (e.g., phenoxy radical formation). In consequence, the substrate portfolio of a UPO enzyme always combines prototypical monooxygenase and peroxidase activities. Here, we briefly review nearly 20 years of peroxygenase research, considering basic mechanistic, molecular, phylogenetic, and biotechnological aspects.
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Affiliation(s)
- Martin Hofrichter
- Department of Bio- and Environmental Sciences, TU Dresden-International Institute Zittau, Markt 23, 02763 Zittau, Germany; (H.K.); (R.H.); (A.K.); (R.U.)
| | - Harald Kellner
- Department of Bio- and Environmental Sciences, TU Dresden-International Institute Zittau, Markt 23, 02763 Zittau, Germany; (H.K.); (R.H.); (A.K.); (R.U.)
| | - Robert Herzog
- Department of Bio- and Environmental Sciences, TU Dresden-International Institute Zittau, Markt 23, 02763 Zittau, Germany; (H.K.); (R.H.); (A.K.); (R.U.)
| | - Alexander Karich
- Department of Bio- and Environmental Sciences, TU Dresden-International Institute Zittau, Markt 23, 02763 Zittau, Germany; (H.K.); (R.H.); (A.K.); (R.U.)
| | - Jan Kiebist
- Institute of Biotechnology, Brandenburg University of Technology Cottbus-Senftenberg, Universitätsplatz 1, 01968 Senftenberg, Germany; (J.K.); (K.S.)
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Am Mühlenberg 13, 14476 Potsdam-Golm, Germany
| | - Katrin Scheibner
- Institute of Biotechnology, Brandenburg University of Technology Cottbus-Senftenberg, Universitätsplatz 1, 01968 Senftenberg, Germany; (J.K.); (K.S.)
| | - René Ullrich
- Department of Bio- and Environmental Sciences, TU Dresden-International Institute Zittau, Markt 23, 02763 Zittau, Germany; (H.K.); (R.H.); (A.K.); (R.U.)
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Li H, Deng Y, Du S, Liu C, Li K, Xue X, Xu H, Zhang Y, Yi T, Gao X. Asymmetric Sulfoxidation of Thioether Catalyzed by Soybean Pod Shell Peroxidase to Form Enantiopure Sulfoxide in Water-in-Oil Microemulsions: A Kinetic Model. Chem Asian J 2021; 16:2075-2086. [PMID: 34121354 DOI: 10.1002/asia.202100467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/27/2021] [Indexed: 11/08/2022]
Abstract
Esomeprazole with chiral sulfoxides structure is used to treat gastric ulcer disease. Soybean pod shell peroxidase (SPSP) is a peroxidase extracted from soybean pods shells which are one of the most abundant natural resources in the world. In the production of chiral sulfoxides catalyzed by SPSP, it is very important to establish the reaction kinetic model and explore the reaction mechanism for the development of the process, however, there is no report on the establishment of the model. Asymmetric sulfoxidation reactions catalyzed by SPSP in water-in-oil microemulsions were carried out, and the King-Altman approach was used to establish a kinetic model. A yield of 91% and e.e. value of 96% for esomeprazole were obtained at the activity of SPSP of 3200 U ml-1 and 50 °C for 5 h. The mechanism with a two-electron reduction of SPSP-I is accompanied with a single-electron transfer to SPSP-I and nonenzymatic reactions, indicating that three concomitant sub-mechanisms contribute to the asymmetric oxidation involving five enzymatic and two nonenzymatic reactions, which can represent the asymmetric sulfoxidation of organic sulfides to form enantiopure sulfoxides. With 5.44% of the average relative deviation, a kinetic model fitting experimental data was developed. The enzymatic reactions may follow ping-pong mechanism with substrate inhibition of H2 O2 and product inhibition of esomeprazole, while nonenzymatic reactions follow a power law. Those results indicate that SPSP with a lower cost and higher thermal stability may be used as an effective substitute for horseradish peroxidase.
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Affiliation(s)
- Huiling Li
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mailbox 70, 53 Zhengzhou Road, Qingdao, 266042, P. R. China
| | - Yashan Deng
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mailbox 70, 53 Zhengzhou Road, Qingdao, 266042, P. R. China
| | - ShanShan Du
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mailbox 70, 53 Zhengzhou Road, Qingdao, 266042, P. R. China
| | - Cui Liu
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mailbox 70, 53 Zhengzhou Road, Qingdao, 266042, P. R. China
| | - Kaiyuan Li
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mailbox 70, 53 Zhengzhou Road, Qingdao, 266042, P. R. China
| | - Xiao Xue
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mailbox 70, 53 Zhengzhou Road, Qingdao, 266042, P. R. China
| | - Hui Xu
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mailbox 70, 53 Zhengzhou Road, Qingdao, 266042, P. R. China
| | - Yuanyuan Zhang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mailbox 70, 53 Zhengzhou Road, Qingdao, 266042, P. R. China
- William G. Lowrie Department of Chemical and Biomolecular Engineering, Ohio State University, 151 West Woodruff Avenue, Columbus, Ohio, 43210, USA
| | - Tingting Yi
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong St, Tai'an, Shandong, 271018, P. R. China
| | - Xin Gao
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mailbox 70, 53 Zhengzhou Road, Qingdao, 266042, P. R. China
- Kekulé-Institut für Organische Chemie und Biochemieder Rheinischen, Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121, Bonn, Germany
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Tang H, Zhang Y, Deng Y, Du S, Li D, Wang Z, Li H, Gao X, Wang F. Optimization of Synthesis of (S)-Omeprazole Catalyzed by Soybean Pod Peroxidase in Water-in-Oil Microemulsions Using RSM. Catal Letters 2021. [DOI: 10.1007/s10562-021-03681-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Optimum synthesis of esomeprazole catalyzed by Rhodococcus rhodochrous ATCC 4276 through response surface methodology. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0757-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Zhang Y, Lv K, Deng Y, Li H, Wang Z, Li D, Gao X, Wang F. Asymmetric Bio-oxidation Using Resting Cells of Rhodococcus rhodochrous ATCC 4276 Mutant QZ-3 for Preparation of (S)-Omeprazole in a Chloroform–Water Biphasic System Using Response Surface Methodology. Catal Letters 2021. [DOI: 10.1007/s10562-021-03531-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Dembitsky VM, Ermolenko E, Savidov N, Gloriozova TA, Poroikov VV. Antiprotozoal and Antitumor Activity of Natural Polycyclic Endoperoxides: Origin, Structures and Biological Activity. Molecules 2021; 26:686. [PMID: 33525706 PMCID: PMC7865715 DOI: 10.3390/molecules26030686] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/20/2021] [Accepted: 01/25/2021] [Indexed: 02/08/2023] Open
Abstract
Polycyclic endoperoxides are rare natural metabolites found and isolated in plants, fungi, and marine invertebrates. The purpose of this review is a comparative analysis of the pharmacological potential of these natural products. According to PASS (Prediction of Activity Spectra for Substances) estimates, they are more likely to exhibit antiprotozoal and antitumor properties. Some of them are now widely used in clinical medicine. All polycyclic endoperoxides presented in this article demonstrate antiprotozoal activity and can be divided into three groups. The third group includes endoperoxides, which show weak antiprotozoal activity with a reliability of up to 70%, and this group includes only 1.1% of metabolites. The second group includes the largest number of endoperoxides, which are 65% and show average antiprotozoal activity with a confidence level of 70 to 90%. Lastly, the third group includes endoperoxides, which are 33.9% and show strong antiprotozoal activity with a confidence level of 90 to 99.6%. Interestingly, artemisinin and its analogs show strong antiprotozoal activity with 79 to 99.6% confidence against obligate intracellular parasites which belong to the genera Plasmodium, Toxoplasma, Leishmania, and Coccidia. In addition to antiprotozoal activities, polycyclic endoperoxides show antitumor activity in the proportion: 4.6% show weak activity with a reliability of up to 70%, 65.6% show an average activity with a reliability of 70 to 90%, and 29.8% show strong activity with a reliability of 90 to 98.3%. It should also be noted that some polycyclic endoperoxides, in addition to antiprotozoal and antitumor properties, show other strong activities with a confidence level of 90 to 97%. These include antifungal activity against the genera Aspergillus, Candida, and Cryptococcus, as well as anti-inflammatory activity. This review provides insights on further utilization of polycyclic endoperoxides by medicinal chemists, pharmacologists, and the pharmaceutical industry.
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Affiliation(s)
- Valery M. Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada;
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 17 Palchevsky Str., 690041 Vladivostok, Russia;
| | - Ekaterina Ermolenko
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 17 Palchevsky Str., 690041 Vladivostok, Russia;
| | - Nick Savidov
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada;
| | - Tatyana A. Gloriozova
- Institute of Biomedical Chemistry, 10 Pogodinskaya Str., 119121 Moscow, Russia; (T.A.G.); (V.V.P.)
| | - Vladimir V. Poroikov
- Institute of Biomedical Chemistry, 10 Pogodinskaya Str., 119121 Moscow, Russia; (T.A.G.); (V.V.P.)
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Zr-based acid-stable nucleotide coordination polymers: An excellent platform for acidophilic enzymes immobilization. J Inorg Biochem 2021; 216:111338. [PMID: 33445108 DOI: 10.1016/j.jinorgbio.2020.111338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/24/2020] [Accepted: 12/04/2020] [Indexed: 11/17/2022]
Abstract
Acidophilic enzymes play an important role in special industrial catalytic reactions. In this work, we reported Zr-based acid-stable nucleotide coordination polymers (CPs) for efficiently improving acidophilic enzymes immobilization. Among all tested metal ions, the Zr4+/AMP CPs exhibited the highest acid stability and enzyme affinity. As a typical acidophilic enzyme, the immobilized Chloroperoxidase by Zr4+/AMP CPs displayed robust reusability in the asymmetric synthesis of modafinil, remained 95.7% of conversion rate and 99.1% enantiomeric excess (e.e.) value. This work displayed a novel acid-stable bioorganic and inorganic hybrid nanomaterial for acidophilic enzymes immobilization.
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Basumatary D, Yadav M, Nath P, Yadav HS. Catalytic Biotransformations and Inhibition Study of Peroxidase from Luffa aegyptiaca. CURRENT ORGANOCATALYSIS 2020. [DOI: 10.2174/2213337207666200211095038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:Present interest in catalytic bioconversions is concerned with 2 major environmental issues. (i) The replacement or substitution of oxidations which involves heavy metal salts and reagents by alternatives using H2O2 as the ecofriendly oxidant. (ii) The prominent issue is the increasing interest in the production of high chemoselectivity, regioselectivity and stereoselectivity of compounds in chemical reactions in order to achieve better byproducts. Keeping these points in view the work on peroxidases have been carried out which fullfills these two goals.Objective:To determine the enzyme activity in the available source to explore its catalytic efficiency in biotransformations of heavy metal compounds. Optimizing the effect of different oxidants for maximum activity of peroxidase and to study the nature of inhibition of peroxidase in presence of different metal ions.Methods:Enzyme extracted in large volume from Luffa aegyptiaca fruit. Peroxidase activity measured by spectrophotometric method. Peroxidase catalyzed rate of reaction was determined spectrophotometerically by making use of guaiacol as the substrate and in presence of H2O2, V2O5, VOSO4, VO(acac)2, (NH4)2(Ce(NO3)6), and (NH4)6Mo7.4H2O monitored at λmax = 470 nm. The haloperoxidase activity were assayed by monitoring the formation of halogen by UV/VIS spectra. The steady state velocity of the enzyme catalysed reaction was measured at different concentrations of metal ions like trivalent (Cr3+ and Al3+), divalent (Ca2+, Mg2+, Cd2+, Zn2+ and Ni2+) and monovalent (Na+ and K+) in the range of 0.0 mM to 100 mM at the fixed enzyme saturating concentration. Graph was plotted to determine the nature of enzyme activity inhibition.Results:Study of rate of reaction by steady state kinetics measurements confirmed peroxidase activity of order of 9.0 U in the fruit extract prepared. The oxidation potential required for the oxidation of guaiacol to tetraguaiacol is 0.575V and the reaction is irreversible. (NH4)2(Ce(NO3)6) and (NH4)6Mo7.4H2O oxidized guaiacol with the rate found to be 0.009 OD/sec in former substituent and the rate of formation of tetraguaiacol was much low in the later substituent found to be 0.003 OD/sec as compared to enzyme with rate 0.01 OD/sec. Enzyme peroxidase was able to oxidize Fe2+ and Mn2+ to Fe3+ and Mn3+ respectively in the reaction mixture. It is found that V2O5 is better oxidizing agent than H2O2 for catalytic oxidation of guaiacol as the substrate. Peroxidases in presence of H2O2 and KBr/KCl/KI act as a viable ecofriendly reagent for the halogenation reaction in organic synthesis. Nature of inhibition by Zn2+ and Ni2+ ions is competitive type. Enzyme activity is inhibited in presence of Cr3+ and Al3+ and the nature of inhibition is uncompetitive type.Conclusion:Luffa aegyptiaca is a better source of peroxidase having 9 U. UV-Visible spectrum analysis indicated that (NH4)2 (Ce(NO3)6 can substitute peroxidase enzyme under optimized conditions.( NH4)2(Ce(NO3)6 act as a cocatalyst by enhancing the activity twice. The enzyme with H2O2 and KBr/KCl/KI is a suitable environmentally suitable reagent for halogenation reaction in organic and inorganic synthesis. The rate of reaction is highest in presence of V2O5 as compared to other vanadium compounds. Thus V2O5 act as better oxidizing agent than H2O2. Chemical technology can be substituted by enzyme technology which should be developed to removal excess and toxic heavy metals. Salinity required for normal functioning of enzyme is 140mM NaCl and 90mM KCl. Enzyme activity enhanced in presence of Ca2+, Mg2+ and Cd2+ while inhibited in presence of Zn2+ and Ni2+. Nature of inhibition by Zn2+ and Ni2+ ions is competitive type. Enzyme activity is inhibited in presence of Cr3+ and Al3+ and the nature of inhibition is uncompetitive type. Extensive studies are needed to understand the mechanism of inhibition of manganese peroxidase activity by metal ions.
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Affiliation(s)
- Dencil Basumatary
- Department of Chemistry, NERIST, Nirjuli, Itanagar-791109 (AR), India
| | - Meera Yadav
- Department of Chemistry, NERIST, Nirjuli, Itanagar-791109 (AR), India
| | - Parag Nath
- Department of Chemistry, NERIST, Nirjuli, Itanagar-791109 (AR), India
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Chen H, Dong F, Minteer SD. The progress and outlook of bioelectrocatalysis for the production of chemicals, fuels and materials. Nat Catal 2020. [DOI: 10.1038/s41929-019-0408-2] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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15
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Yadav P, Khare SK, Sharma S. Kinetics of epoxidation by a
Musa paradisiaca
chloroperoxidase. INT J CHEM KINET 2019. [DOI: 10.1002/kin.21280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pratibha Yadav
- Centre for Rural Development and TechnologyIndian Institute of Technology Delhi New Delhi India
| | - Sunil K. Khare
- Department of ChemistryIndian Institute of Technology Delhi New Delhi India
| | - Satyawati Sharma
- Centre for Rural Development and TechnologyIndian Institute of Technology Delhi New Delhi India
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Schmitz LM, Rosenthal K, Lütz S. Enzyme-Based Electrobiotechnological Synthesis. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2019; 167:87-134. [PMID: 29134460 DOI: 10.1007/10_2017_33] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Oxidoreductases are enzymes with a high potential for organic synthesis, as their selectivity often exceeds comparable chemical syntheses. The biochemical cofactors of these enzymes need regeneration during synthesis. Several regeneration methods are available but the electrochemical approach offers an efficient and quasi mass-free method for providing the required redox equivalents. Electron transfer systems involving direct regeneration of natural and artificial cofactors, indirect electrochemical regeneration via a mediator, and indirect electroenzymatic cofactor regeneration via enzyme and mediator have been investigated. This chapter gives an overview of electroenzymatic syntheses with oxidoreductases, structured by the enzyme subclass and their usage of cofactors for electron relay. Particular attention is given to the productivity of electroenzymatic biotransformation processes. Because most electroenzymatic syntheses suffer from low productivity, we discuss reaction engineering concepts to overcome the main limiting factors, with a focus on media conductivity optimization, approaches to prevent enzyme inactivation, and the application of advanced cell designs. Graphical Abstract.
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Affiliation(s)
- Lisa Marie Schmitz
- Department of Biochemical and Chemical Engineering, TU Dortmund University, Dortmund, Germany
| | - Katrin Rosenthal
- Department of Biochemical and Chemical Engineering, TU Dortmund University, Dortmund, Germany
| | - Stephan Lütz
- Department of Biochemical and Chemical Engineering, TU Dortmund University, Dortmund, Germany.
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17
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Abstract
This review is intended as a comprehensive survey of iodinated metabolites possessing carbon–iodine covalent bond, which have been obtained from living organisms. Generally thought to be minor components produced by many different organisms these interesting compounds now number more than 110. Many from isolated and identified iodine-containing metabolites showed high biological activities. Recent research, especially in the marine area, indicates this number will increase in the future. Sources of iodinated metabolites include microorganisms, algae, marine invertebrates, and some animals. Their origin and possible biological significance have also been discussed.
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Affiliation(s)
- Valery M Dembitsky
- Department of Medicinal Chemistry and Natural Products, School of Pharmacy, P.O. Box 12065, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
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18
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Savidov N, Gloriozova TA, Poroikov VV, Dembitsky VM. Highly oxygenated isoprenoid lipids derived from fungi and fungal endophytes: Origin and biological activities. Steroids 2018; 140:114-124. [PMID: 30326211 DOI: 10.1016/j.steroids.2018.10.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 09/19/2018] [Accepted: 10/09/2018] [Indexed: 02/07/2023]
Abstract
This mini review is devoted to highly oxygenated isoprenoid lipids (HOIL) that are produced by fungi and fungal endophytes from various ecological niches, both terrestrial and aquatic. Steroids were distributed as from edible cultivated fungi, as well as fungi collected in forests. Fungal endophytes were generally isolated from plants and cultured to obtain sufficient biomass. Marine fungi were obtained from marine brown and red algae and marine invertebrates such as sponges, corals, worms, crustacea or from marine sediments. HOIL isolated from the terrestrial ecosystem have the pharmacological potential on anti-hypercholesterolemic, anti-neoplastic, anti-eczematic and anti-inflammatory activity estimated with a confidence of 84-90%. HOIL that produced by marine fungal species are predicted as having anti-inflammatory and anti-hypercholesterolemic activity with a confidence of 82-91%. In addition, they may have potential acetylcholinesterase and cell adhesion molecule inhibitors estimated with a confidence of 86-88%.
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Affiliation(s)
- Nick Savidov
- Centre for Applied Research and Innovation, Lethbridge College, 3000 College Drive South, Lethbridge AB T1K 1L6, Canada
| | | | | | - Valery M Dembitsky
- Centre for Applied Research and Innovation, Lethbridge College, 3000 College Drive South, Lethbridge AB T1K 1L6, Canada; N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russian Federation; National Scientific Center of Marine Biology, Vladivostok 690041, Russian Federation.
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19
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Peroxy steroids derived from plant and fungi and their biological activities. Appl Microbiol Biotechnol 2018; 102:7657-7667. [PMID: 29987343 DOI: 10.1007/s00253-018-9211-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/04/2018] [Accepted: 06/30/2018] [Indexed: 01/13/2023]
Abstract
Peroxides represent a large and interesting group of biologically active natural compounds. All these metabolites contain a peroxide group (R-O-O-R). This review describes studies of more than 60 peroxides isolated from plants and fungi. Most of the plant peroxy steroids exhibit high antiprotozoal (Plasmodium) activity with a confidence of up to 95%, while steroids harvested from fungi show more antineoplastic activity with a confidence of up to 94%. In addition, more than 20 different activities of both groups of peroxides with a probability of 78 to 90% have also been predicted using computer program PASS.
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20
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Mononuclear oxovanadium(IV) Schiff base complex: Synthesis, spectroscopy, electrochemistry, DFT calculation and catalytic activity. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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21
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Herget K, Frerichs H, Pfitzner F, Tahir MN, Tremel W. Functional Enzyme Mimics for Oxidative Halogenation Reactions that Combat Biofilm Formation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707073. [PMID: 29920781 DOI: 10.1002/adma.201707073] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/18/2018] [Indexed: 06/08/2023]
Abstract
Transition-metal oxide nanoparticles and molecular coordination compounds are highlighted as functional mimics of halogenating enzymes. These enzymes are involved in halometabolite biosynthesis. Their activity is based upon the formation of hypohalous acids from halides and hydrogen peroxide or oxygen, which form bioactive secondary metabolites of microbial origin with strong antibacterial and antifungal activities in follow-up reactions. Therefore, enzyme mimics and halogenating enzymes may be valuable tools to combat biofilm formation. Here, halogenating enzyme models are briefly described, enzyme mimics are classified according to their catalytic functions, and current knowledge about the settlement chemistry and adhesion of fouling organisms is summarized. Enzyme mimics with the highest potential are showcased. They may find application in antifouling coatings, indoor and outdoor paints, polymer membranes for water desalination, or in aquacultures, but also on surfaces for food packaging, door handles, hand rails, push buttons, keyboards, and other elements made of plastic where biofilms are present. The use of natural compounds, formed in situ with nontoxic and abundant metal oxide enzyme mimics, represents a novel and efficient "green" strategy to emulate and utilize a natural defense system for preventing bacterial colonization and biofilm growth.
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Affiliation(s)
- Karoline Herget
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Hajo Frerichs
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Felix Pfitzner
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Muhammad Nawaz Tahir
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Wolfgang Tremel
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128, Mainz, Germany
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22
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Olivon F, Apel C, Retailleau P, Allard PM, Wolfender JL, Touboul D, Roussi F, Litaudon M, Desrat S. Searching for original natural products by molecular networking: detection, isolation and total synthesis of chloroaustralasines. Org Chem Front 2018. [DOI: 10.1039/c8qo00429c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Four unprecedented chlorinated monoterpenyl quinolones have been isolated using a molecular networking based prioritisation strategy. The bio-inspired total synthesis of chloroaustralasine A involving a chloroperoxydase-mediated hydroxychlorination is described.
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Affiliation(s)
- F. Olivon
- Institut de Chimie des Substances Naturelles
- CNRS-ICSN
- UPR 2301
- Université Paris-Saclay
- Gif-sur-Yvette
| | - C. Apel
- Institut de Chimie des Substances Naturelles
- CNRS-ICSN
- UPR 2301
- Université Paris-Saclay
- Gif-sur-Yvette
| | - P. Retailleau
- Institut de Chimie des Substances Naturelles
- CNRS-ICSN
- UPR 2301
- Université Paris-Saclay
- Gif-sur-Yvette
| | - P. M. Allard
- School of Pharmaceutical Sciences
- University of Geneva
- University of Lausanne
- 1211 Geneva 11
- Switzerland
| | - J. L. Wolfender
- School of Pharmaceutical Sciences
- University of Geneva
- University of Lausanne
- 1211 Geneva 11
- Switzerland
| | - D. Touboul
- Institut de Chimie des Substances Naturelles
- CNRS-ICSN
- UPR 2301
- Université Paris-Saclay
- Gif-sur-Yvette
| | - F. Roussi
- Institut de Chimie des Substances Naturelles
- CNRS-ICSN
- UPR 2301
- Université Paris-Saclay
- Gif-sur-Yvette
| | - M. Litaudon
- Institut de Chimie des Substances Naturelles
- CNRS-ICSN
- UPR 2301
- Université Paris-Saclay
- Gif-sur-Yvette
| | - S. Desrat
- Institut de Chimie des Substances Naturelles
- CNRS-ICSN
- UPR 2301
- Université Paris-Saclay
- Gif-sur-Yvette
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23
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Sodhi RK, Paul S. An Overview of Metal Acetylacetonates: Developing Areas/Routes to New Materials and Applications in Organic Syntheses. CATALYSIS SURVEYS FROM ASIA 2017. [DOI: 10.1007/s10563-017-9239-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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24
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But A, van Noord A, Poletto F, Sanders JP, Franssen MC, Scott EL. Enzymatic halogenation and oxidation using an alcohol oxidase-vanadium chloroperoxidase cascade. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.09.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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25
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Dai W, Shang S, Lv Y, Li G, Li C, Gao S. Highly Chemoselective and Enantioselective Catalytic Oxidation of Heteroaromatic Sulfides via High-Valent Manganese(IV)–Oxo Cation Radical Oxidizing Intermediates. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00968] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Wen Dai
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- Dalian National Laboratory for Clean Energy, Dalian 116023, People’s Republic of China
| | - Sensen Shang
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- Dalian National Laboratory for Clean Energy, Dalian 116023, People’s Republic of China
| | - Ying Lv
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- Dalian National Laboratory for Clean Energy, Dalian 116023, People’s Republic of China
| | - Guosong Li
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- Dalian National Laboratory for Clean Energy, Dalian 116023, People’s Republic of China
| | - Chunsen Li
- State Key Laboratory of Structural
Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen, Fujian 361005, People’s Republic of China
| | - Shuang Gao
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- Dalian National Laboratory for Clean Energy, Dalian 116023, People’s Republic of China
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26
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Zhou P, Lan D, Popowicz GM, Wang X, Yang B, Wang Y. Enhancing H2O2 resistance of an esterase from Pyrobaculum calidifontis by structure-guided engineering of the substrate binding site. Appl Microbiol Biotechnol 2017; 101:5689-5697. [DOI: 10.1007/s00253-017-8299-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 04/06/2017] [Accepted: 04/12/2017] [Indexed: 11/28/2022]
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27
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Dembitsky VM, Gloriozova TA, Poroikov VV. Pharmacological and Predicted Activities of Natural Azo Compounds. NATURAL PRODUCTS AND BIOPROSPECTING 2017; 7:151-169. [PMID: 28054247 PMCID: PMC5315673 DOI: 10.1007/s13659-016-0117-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 12/26/2016] [Indexed: 05/16/2023]
Abstract
This paper describes research on natural azo compounds isolated from fungi, plant, bacteria, and invertebrates. More than 120 biologically active diazene containing alkaloids demonstrate confirmed pharmacological activity, including antitumor, antimicrobial, and antibacterial effects. The structures, origin, and biological activities of azo compounds are reviewed. Utilizing the computer program PASS, some structure-activity relationship new activities are also predicted, pointing toward possible new applications of these compounds. This article emphasizes the role of natural azo compounds as an important source of drug prototypes and leads for drug discovery.
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Affiliation(s)
- Valery M Dembitsky
- National Scientific Center of Marine Biology, 17 Palchevsky Str., Vladivostok, Russia, 690041.
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28
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Xu Y, Fu ZC, Cao S, Chen Y, Fu WF. Highly selective oxidation of sulfides on a CdS/C3N4 catalyst with dioxygen under visible-light irradiation. Catal Sci Technol 2017. [DOI: 10.1039/c6cy01568a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A CdS/C3N4 visible-light catalyst exhibits high product selectivity towards photocatalytic oxidation of sulfides into corresponding sulfoxides with dioxygen in methanol.
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Affiliation(s)
- Yong Xu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
| | - Zi-Cheng Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
| | - Shuang Cao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
| | - Wen-Fu Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
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29
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On the bromination of aromatics, alkenes and alkynes using alkylammonium bromide: Towards the mimic of bromoperoxidases reactivity. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.11.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Importance of ground state stabilization in the oxovanadium(IV)-salophen mediated reactions of phenylsulfinylacetic acids by hydrogen peroxide – Non-linear Hammett correlation. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.06.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Kim S, Lee J, Jang S, Lee H, Sung D, Chang J. High efficient chromogenic catalysis of tetramethylbenzidine with horseradish peroxidase immobilized magnetic nanoparticles. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2015.10.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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32
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Linde D, Cañellas M, Coscolín C, Davó-Siguero I, Romero A, Lucas F, Ruiz-Dueñas FJ, Guallar V, Martínez AT. Asymmetric sulfoxidation by engineering the heme pocket of a dye-decolorizing peroxidase. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00539j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By enlarging the active site of DyP, F359G stereoselectively converting methyl-phenyl sulfide (MPS) into S methyl-phenyl sulfoxide (MPSO) was obtained, while the parent DyP has no activity, and L357G yields racemic mixtures.
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Affiliation(s)
- Dolores Linde
- Centro de Investigaciones Biológicas
- CSIC
- E-28040 Madrid
- Spain
| | - Marina Cañellas
- Joint BSC-CRG-IRB Research Program in Computational Biology
- Barcelona Supercomputing Center
- E-08034 Barcelona
- Spain
- Anaxomics Biotech
| | | | | | - Antonio Romero
- Centro de Investigaciones Biológicas
- CSIC
- E-28040 Madrid
- Spain
| | - Fátima Lucas
- Joint BSC-CRG-IRB Research Program in Computational Biology
- Barcelona Supercomputing Center
- E-08034 Barcelona
- Spain
- Anaxomics Biotech
| | | | - Victor Guallar
- Joint BSC-CRG-IRB Research Program in Computational Biology
- Barcelona Supercomputing Center
- E-08034 Barcelona
- Spain
- ICREA
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33
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Biocatalysts for the formation of three- to six-membered carbo- and heterocycles. Biotechnol Adv 2015; 33:457-80. [DOI: 10.1016/j.biotechadv.2015.01.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 01/27/2015] [Indexed: 11/18/2022]
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34
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Christmann M, Hu J, Kitamura M, Stoltz B. Tetrahedron reports on organic chemistry. Tetrahedron 2015. [DOI: 10.1016/s0040-4020(15)00744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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35
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Gupta R, Hou G, Renirie R, Wever R, Polenova T. 51V NMR Crystallography of Vanadium Chloroperoxidase and Its Directed Evolution P395D/L241V/T343A Mutant: Protonation Environments of the Active Site. J Am Chem Soc 2015; 137:5618-28. [DOI: 10.1021/jacs.5b02635] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Rupal Gupta
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Guangjin Hou
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Rokus Renirie
- Van’t
Hoff Institute for Molecular Science, University of Amsterdam, POSTBUS
94157, 1090 GD, Amsterdam, The Netherlands
| | - Ron Wever
- Van’t
Hoff Institute for Molecular Science, University of Amsterdam, POSTBUS
94157, 1090 GD, Amsterdam, The Netherlands
| | - Tatyana Polenova
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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36
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Abstract
Enantiomerically pure epichlorohydrin is a key chiral synthon in the preparation of 4-chloro-3-hydroxybutyrate, pheromones,l-carnitine, and β-adrenergic blockers.
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Affiliation(s)
- Huo-Xi Jin
- School of Food Science and Pharmaceutics
- Zhejiang Ocean University
- Zhoushan 316022
- P. R. China
| | - Xiao-Kun OuYang
- School of Food Science and Pharmaceutics
- Zhejiang Ocean University
- Zhoushan 316022
- P. R. China
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37
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Abstract
The enzyme chloroperoxidase (CPO) was immobilized in silica sol-gel beads prepared from tetramethoxysilane. The average pore diameter of the silica host structure (~3 nm) was smaller than the globular CPO diameter (~6 nm) and the enzyme remained entrapped after sol-gel maturation. The catalytic performance of the entrapped enzyme was assessed via the pyrogallol peroxidation reaction. Sol-gel beads loaded with 4 μg CPO per mL sol solution reached 9–12% relative activity compared to free CPO in solution. Enzyme kinetic analysis revealed a decrease inkcatbut no changes inKMorKI. Product release or enzyme damage might thus limit catalytic performance. Yet circular dichroism and visible absorption spectra of transparent CPO sol-gel sheets did not indicate enzyme damage. Activity decline due to methanol exposure was shown to be reversible in solution. To improve catalytic performance the sol-gel protocol was modified. The incorporation of 5, 20, or 40% methyltrimethoxysilane resulted in more brittle sol-gel beads but the catalytic performance increased to 14% relative to free CPO in solution. The use of more acidic casting buffers (pH 4.5 or 5.5 instead of 6.5) resulted in a more porous silica host reaching up to 18% relative activity.
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38
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Yang WC, Weng SS, Ramasamy A, Rajeshwaren G, Liao YY, Chen CT. Vanadyl species-catalyzed complementary β-oxidative carbonylation of styrene derivatives with aldehydes. Org Biomol Chem 2015; 13:2385-92. [DOI: 10.1039/c4ob02621g] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By judicious choice of the counter anions in the vanadyl catalysts, we can achieve β-hydroxylated and t-butyl peroxylated carbonylation of styrenes by aromatic 1° and 2° alkyl aldehydes in a complementary manner.
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Affiliation(s)
- Wen-Chieh Yang
- Department of Chemistry
- National Tsing Hua University
- Hsinchu
- Taiwan
| | | | | | - Gobi Rajeshwaren
- Department of Chemistry
- National Tsing Hua University
- Hsinchu
- Taiwan
| | - Yi-Ya Liao
- Department of Chemistry
- National Tsing Hua University
- Hsinchu
- Taiwan
| | - Chien-Tien Chen
- Department of Chemistry
- National Tsing Hua University
- Hsinchu
- Taiwan
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39
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Vizer SA, Sycheva ES, Al Quntar AAA, Kurmankulov NB, Yerzhanov KB, Dembitsky VM. Propargylic sulfides: synthesis, properties, and application. Chem Rev 2014; 115:1475-502. [PMID: 25517232 DOI: 10.1021/cr4001435] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Svetlana A Vizer
- A.B. Bekturov Institute of Chemical Sciences , 106 Sh. Walikhanov Street, Almaty 480100, Republic of Kazakhstan
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40
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Dembitsky VM. Naturally occurring bioactive Cyclobutane-containing (CBC) alkaloids in fungi, fungal endophytes, and plants. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2014; 21:1559-1581. [PMID: 25442265 DOI: 10.1016/j.phymed.2014.07.005] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/03/2014] [Accepted: 07/02/2014] [Indexed: 05/28/2023]
Abstract
This article focuses on the occurrence and biological activities of cyclobutane-containing (CBC) alkaloids obtained from fungi, fungal endophytes, and plants. Naturally occurring CBC alkaloids are of particular interest because many of these compounds display important biological activities and possess antitumour, antibacterial, antimicrobial, antifungal, and immunosuppressive properties. Therefore, these compounds are of great interest in the fields of medicine, pharmacology, medicinal chemistry, and the pharmaceutical industry. Fermentation and production of CBC alkaloids by fungi and/or fungal endophytes is also discussed. This review presents the structures and describes the activities of 98 CBC alkaloids.
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Affiliation(s)
- Valery M Dembitsky
- Institute of Drug Discovery, Har-Hotsvim, P.O. Box 45289, Jerusalem 91451, Israel.
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41
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Kuklev DV, Dembitsky VM. Epoxy acetylenic lipids: Their analogues and derivatives. Prog Lipid Res 2014; 56:67-91. [DOI: 10.1016/j.plipres.2014.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 08/22/2014] [Indexed: 10/24/2022]
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42
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Cloning and Characterization of a Novel Esterase from Rhodococcus sp. for Highly Enantioselective Synthesis of a Chiral Cilastatin Precursor. Appl Environ Microbiol 2014; 80:7348-55. [PMID: 25239898 DOI: 10.1128/aem.01597-14] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 09/15/2014] [Indexed: 11/20/2022] Open
Abstract
A novel nonheme chloroperoxidase (RhEst1), with promiscuous esterase activity for enantioselective hydrolysis of ethyl (S)-2,2-dimethylcyclopropanecarboxylate, was identified from a shotgun library of Rhodococcus sp. strain ECU1013. RhEst1 was overexpressed in Escherichia coli BL21(DE3), purified to homogeneity, and functionally characterized. Fingerprinting analysis revealed that RhEst1 prefers para-nitrophenyl (pNP) esters of short-chain acyl groups. pNP esters with a cyclic acyl moiety, especially that with a cyclobutanyl group, were also substrates for RhEst1. The Km values for methyl 2,2-dimethylcyclopropanecarboxylate (DmCpCm) and ethyl 2,2-dimethylcyclopropane carboxylate (DmCpCe) were 0.25 and 0.43 mM, respectively. RhEst1 could serve as an efficient hydrolase for the bioproduction of optically pure (S)-2,2-dimethyl cyclopropane carboxylic acid (DmCpCa), which is an important chiral building block for cilastatin. As much as 0.5 M DmCpCe was enantioselectively hydrolyzed into (S)-DmCpCa, with a molar yield of 47.8% and an enantiomeric excess (ee) of 97.5%, indicating an extremely high enantioselectivity (E = 240) of this novel and unique biocatalyst for green manufacturing of highly valuable chiral chemicals.
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Terent'ev AO, Borisov DA, Vil’ VA, Dembitsky VM. Synthesis of five- and six-membered cyclic organic peroxides: Key transformations into peroxide ring-retaining products. Beilstein J Org Chem 2014; 10:34-114. [PMID: 24454562 PMCID: PMC3896255 DOI: 10.3762/bjoc.10.6] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Accepted: 11/16/2013] [Indexed: 12/16/2022] Open
Abstract
The present review describes the current status of synthetic five and six-membered cyclic peroxides such as 1,2-dioxolanes, 1,2,4-trioxolanes (ozonides), 1,2-dioxanes, 1,2-dioxenes, 1,2,4-trioxanes, and 1,2,4,5-tetraoxanes. The literature from 2000 onwards is surveyed to provide an update on synthesis of cyclic peroxides. The indicated period of time is, on the whole, characterized by the development of new efficient and scale-up methods for the preparation of these cyclic compounds. It was shown that cyclic peroxides remain unchanged throughout the course of a wide range of fundamental organic reactions. Due to these properties, the molecular structures can be greatly modified to give peroxide ring-retaining products. The chemistry of cyclic peroxides has attracted considerable attention, because these compounds are used in medicine for the design of antimalarial, antihelminthic, and antitumor agents.
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Key Words
- 1,2,4,5-tetraoxanes
- 1,2,4-trioxanes
- 1,2,4-trioxolanes
- 1,2-dioxanes
- 1,2-dioxenes
- 1,2-dioxolanes
- cyclic peroxides
- ozonides
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Affiliation(s)
- Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Dmitry A Borisov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Vera A Vil’
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Valery M Dembitsky
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
- Institute for Drug Research, P.O. Box 12065, Hebrew University, Jerusalem 91120, Israel
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De Matteis L, Germani R, Mancini MV, Savelli G, Spreti N, Brinchi L, Pastori G. Investigations to optimize the catalytic performance of CPO encapsulated in PEG 200-doped silica matrices. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.07.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mumbo J, Lenoir D, Henkelmann B, Schramm KW. Enzymatic synthesis of bromo- and chlorocarbazoles and elucidation of their structures by molecular modeling. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:8996-9005. [PMID: 23757025 DOI: 10.1007/s11356-013-1823-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 05/13/2013] [Indexed: 06/02/2023]
Abstract
3-Chlorocarbazole, 3,6-dichlorocarbazole, dibromocarbazole, and 1,3,6,8-tetrabromocarbazole are emerging environmental contaminants which have been detected recently in water, sediment, and soil samples. However, their sources and occurrence have not been explained. Here, we report an enzymatic synthesis of bromo- and chlorocarbazoles by chloroperoxidase from Caldariomyces fumago in water. Density functional theory (DFT) method was used to predict the most stable products. Carbazole and chloroperoxidase were assayed in vitro in the presence of hydrogen peroxide, bromide, and chloride ions in different substrate ratio treatments against constant and varying enzyme concentrations. Halogenated carbazoles formed were identified by high-resolution gas chromatography coupled to mass spectrometry. In all treatments, bromination and chlorination took place, but the composition and concentration of compounds formed varied from one treatment to another. Mono-, di-, tri-, and tetra-substituted bromo- and chlorocarbazoles which include the reported environmental contaminants were synthesized. 3-Substituted and 3,6-substituted congeners were relatively higher in concentration. Enzyme concentration did not favor preferential formation of any of the compounds synthesized. However, their synthesis was influenced by halide concentration. Congeners with bromine and chlorine at position of C-3, C-3,6, C-1,3,6, and C-1,3,6,8 were calculated as the stable intermediate sigma complexes by DFT method. Regioselectivity in halogenation is discussed and hypothesis of the likely stable products in the environment explained. This study provides evidence that bromo- and chlorocarbazoles reported previously can be formed enzymatically in the environment, demonstrating the need to consider aromatic pollutants transformation and their potential toxicity enhancements in the management of water pollution and contaminated sites.
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Affiliation(s)
- John Mumbo
- Helmholtz Zentrum München-German Research Center for Environmental Health (GmbH), Molecular EXposomics (MEX), Ingolstädter Landstraße 1, 85764, Neuherberg, Germany,
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Dai W, Li J, Chen B, Li G, Lv Y, Wang L, Gao S. Asymmetric Oxidation Catalysis by a Porphyrin-Inspired Manganese Complex: Highly Enantioselective Sulfoxidation with a Wide Substrate Scope. Org Lett 2013; 15:5658-61. [DOI: 10.1021/ol402612x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Wen Dai
- Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China, Dalian National Laboratory for Clean Energy, People’s Republic of China, and University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jun Li
- Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China, Dalian National Laboratory for Clean Energy, People’s Republic of China, and University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Bo Chen
- Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China, Dalian National Laboratory for Clean Energy, People’s Republic of China, and University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Guosong Li
- Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China, Dalian National Laboratory for Clean Energy, People’s Republic of China, and University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Ying Lv
- Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China, Dalian National Laboratory for Clean Energy, People’s Republic of China, and University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Lianyue Wang
- Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China, Dalian National Laboratory for Clean Energy, People’s Republic of China, and University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Shuang Gao
- Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, 116023, People’s Republic of China, Dalian National Laboratory for Clean Energy, People’s Republic of China, and University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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Kuklev DV, Domb AJ, Dembitsky VM. Bioactive acetylenic metabolites. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2013; 20:1145-1159. [PMID: 23871125 DOI: 10.1016/j.phymed.2013.06.009] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 03/25/2013] [Accepted: 06/10/2013] [Indexed: 06/02/2023]
Abstract
This article focuses on anticancer, and other biological activities of acetylenic metabolites obtained from plants and fungi. Acetylenic compounds belong to a class of molecules containing triple bond(s). Naturally occurring acetylenics are of particular interest since many of them display important biological activities and possess antitumor, antibacterial, antimicrobial, antifungal, and immunosuppressive properties. There are of great interest for medicine, pharmacology, medicinal chemistry, and pharmaceutical industries. This review presents structures and describes cytotoxic activities of more than 100 acetylenic metabolites, including fatty alcohols, ketones, and acids, acetylenic cyclohexanoids, spiroketal enol ethers, and carotenoids isolated from fungi and plants.
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Affiliation(s)
- Dmitry V Kuklev
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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Popiel S, Nawała J. Detoxification of sulfur mustard by enzyme-catalyzed oxidation using chloroperoxidase. Enzyme Microb Technol 2013; 53:295-301. [DOI: 10.1016/j.enzmictec.2013.06.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 06/26/2013] [Accepted: 06/27/2013] [Indexed: 12/30/2022]
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Hibi M, Kawashima T, Yajima H, Smirnov SV, Kodera T, Sugiyama M, Shimizu S, Yokozeki K, Ogawa J. Enzymatic synthesis of chiral amino acid sulfoxides by Fe(II)/α-ketoglutarate-dependent dioxygenase. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.07.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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