1
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Marcello E, Nigmatullin R, Basnett P, Maqbool M, Prieto MA, Knowles JC, Boccaccini AR, Roy I. 3D Melt-Extrusion Printing of Medium Chain Length Polyhydroxyalkanoates and Their Application as Antibiotic-Free Antibacterial Scaffolds for Bone Regeneration. ACS Biomater Sci Eng 2024; 10:5136-5153. [PMID: 39058405 PMCID: PMC11322914 DOI: 10.1021/acsbiomaterials.4c00624] [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: 04/02/2024] [Revised: 07/09/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024]
Abstract
In this work, we investigated, for the first time, the possibility of developing scaffolds for bone tissue engineering through three-dimensional (3D) melt-extrusion printing of medium chain length polyhydroxyalkanoate (mcl-PHA) (i.e., poly(3-hydroxyoctanoate-co-hydroxydecanoate-co-hydroxydodecanoate), P(3HO-co-3HD-co-3HDD)). The process parameters were successfully optimized to produce well-defined and reproducible 3D P(3HO-co-3HD-co-3HDD) scaffolds, showing high cell viability (100%) toward both undifferentiated and differentiated MC3T3-E1 cells. To introduce antibacterial features in the developed scaffolds, two strategies were investigated. For the first strategy, P(3HO-co-3HD-co-3HDD) was combined with PHAs containing thioester groups in their side chains (i.e., PHACOS), inherently antibacterial PHAs. The 3D blend scaffolds were able to induce a 70% reduction of Staphylococcus aureus 6538P cells by direct contact testing, confirming their antibacterial properties. Additionally, the scaffolds were able to support the growth of MC3T3-E1 cells, showing the potential for bone regeneration. For the second strategy, composite materials were produced by the combination of P(3HO-co-3HD-co-HDD) with a novel antibacterial hydroxyapatite doped with selenium and strontium ions (Se-Sr-HA). The composite material with 10 wt % Se-Sr-HA as a filler showed high antibacterial activity against both Gram-positive (S. aureus 6538P) and Gram-negative bacteria (Escherichia coli 8739), through a dual mechanism: by direct contact (inducing 80% reduction of both bacterial strains) and through the release of active ions (leading to a 54% bacterial cell count reduction for S. aureus 6538P and 30% for E. coli 8739 after 24 h). Moreover, the composite scaffolds showed high viability of MC3T3-E1 cells through both indirect and direct testing, showing promising results for their application in bone tissue engineering.
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Affiliation(s)
- Elena Marcello
- Faculty
of Science and Technology, College of Liberal Arts, University of Westminster, London W1W 6UW, U.K.
| | - Rinat Nigmatullin
- Faculty
of Science and Technology, College of Liberal Arts, University of Westminster, London W1W 6UW, U.K.
| | - Pooja Basnett
- Faculty
of Science and Technology, College of Liberal Arts, University of Westminster, London W1W 6UW, U.K.
| | - Muhammad Maqbool
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
- Lucideon
Ltd., Stoke-on-Trent ST4 7LQ, Staffordshire U.K.
- CAM
Bioceramics B.V., Zernikedreef
6, 2333 CL Leiden, The Netherlands
| | - M. Auxiliadora Prieto
- Polymer
Biotechnology Lab, Centro de Investigaciones Biológicas-Margarita
Salas, Spanish National Research Council
(CIB-CSIC), Madrid 28040, Spain
| | - Jonathan C. Knowles
- Division
of Biomaterials and Tissue Engineering, University College London Eastman Dental Institute, London NW3 2PF, U.K.
- Department
of Nanobiomedical Science and BK21 Plus NBM, Global Research Center
for Regenerative Medicine, Dankook University, Cheonan 31116, South Korea
| | - Aldo R. Boccaccini
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Ipsita Roy
- Department
of Materials Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield S3 7HQ, U.K.
- Insigneo
Institute for In Silico Medicine, University
of Sheffield, Sheffield S3 7HQ, U.K.
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2
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Li K, Cheng JL, Wang MY, Xiong W, Huang HY, Feng LW, Cai Z, Zhu JB. Kinetic Resolution Polymerization Enabled Chemical Synthesis of Perfectly Isotactic Polythioesters. Angew Chem Int Ed Engl 2024; 63:e202405382. [PMID: 38682252 DOI: 10.1002/anie.202405382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/01/2024]
Abstract
Isotactic polythioesters (PTEs) that are thioester analogs to natural polyhydroxyalkanoates (PHAs) have attracted growing attention due to their distinct properties. However, the development of chemically synthetic methods for preparing isotactic PTEs has long been an intricate endeavour. Herein, we report the successful synthesis of perfectly isotactic PTEs via stereocontrolled ring-opening polymerization. This binaphthalene-salen aluminium (SalBinam-Al) catalyst promoted a robust polymerization of rac-α-substituted-β-propiothiolactones (rac-BTL and rac-PTL) with highly kinetic resolution, affording perfectly isotactic P(BTL) and P(PTL) with Mn up to 276 kDa. Impressively, the isotactic P(BTL) formed a supramolecular stereocomplex with improved thermal property (Tm=204 °C). Ultimately, this kinetic resolution polymerization enabled the facile isolation of enantiopure (S)-BTL, which could efficiently convert to an important pharmaceutical building block (S)-2-benzyl-3-mercapto-propanoic acid. Isotactic P(PTL) served as a tough and ductile material comparable to the commercialized polyolefins. This synthetic system allowed to access of isotactic PTEs, establishing a powerful platform for the discovery of sustainable plastics.
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Affiliation(s)
- Kun Li
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan) College of Chemistry, Sichuan University, 29 Wangjiang Rd, Chengdu, 610064, P. R. China
| | - Jing-Liang Cheng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Meng-Yuan Wang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan) College of Chemistry, Sichuan University, 29 Wangjiang Rd, Chengdu, 610064, P. R. China
| | - Wei Xiong
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan) College of Chemistry, Sichuan University, 29 Wangjiang Rd, Chengdu, 610064, P. R. China
| | - Hao-Yi Huang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan) College of Chemistry, Sichuan University, 29 Wangjiang Rd, Chengdu, 610064, P. R. China
| | - Liang-Wen Feng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Zhongzheng Cai
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan) College of Chemistry, Sichuan University, 29 Wangjiang Rd, Chengdu, 610064, P. R. China
| | - Jian-Bo Zhu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan) College of Chemistry, Sichuan University, 29 Wangjiang Rd, Chengdu, 610064, P. R. China
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3
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Woodhouse AW, Kocaarslan A, Garden JA, Mutlu H. Unlocking the Potential of Polythioesters. Macromol Rapid Commun 2024:e2400260. [PMID: 38824417 DOI: 10.1002/marc.202400260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/20/2024] [Indexed: 06/03/2024]
Abstract
As the demand for sustainable polymers increases, most research efforts have focused on polyesters, which can be bioderived and biodegradable. Yet analogous polythioesters, where one of the oxygen atoms has been replaced by a sulfur atom, remain a relatively untapped source of potential. The incorporation of sulfur allows the polymer to exhibit a wide range of favorable properties, such as thermal resistance, degradability, and high refractive index. Polythioester synthesis represents a frontier in research, holding the promise of paving the way for eco-friendly alternatives to conventional polyesters. Moreover, polythioester research can also open avenues to the development of sustainable and recyclable materials. In the last 25 years, many methods to synthesize polythioesters have been developed. However, to date no industrial synthesis of polythioesters has been developed due to challenges of costs, yields, and the toxicity of the by-products. This review will summarize the recent advances in polythioester synthesis, covering step-growth polymerization, ring-opening polymerization (ROP), and biosynthesis. Crucially, the benefits and challenges of the processes will be highlighted, paying particular attention to their sustainability, with the aim of encouraging further exploration and research into the fast-growing field of polythioesters.
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Affiliation(s)
- Adam W Woodhouse
- Institut de Science des Matériaux de Mulhouse, UMR 7361 CNRS/Université de Haute Alsace, 15 Rue Jean Starcky, Mulhouse, Cedex, 68057, France
- School of Chemistry, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Azra Kocaarslan
- Institute of Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstrasee 15, 76131, Karlsruhe, Germany
| | - Jennifer A Garden
- School of Chemistry, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Hatice Mutlu
- Institut de Science des Matériaux de Mulhouse, UMR 7361 CNRS/Université de Haute Alsace, 15 Rue Jean Starcky, Mulhouse, Cedex, 68057, France
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4
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de Souza F, Gupta RK. Bacteria for Bioplastics: Progress, Applications, and Challenges. ACS OMEGA 2024; 9:8666-8686. [PMID: 38434856 PMCID: PMC10905720 DOI: 10.1021/acsomega.3c07372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 03/05/2024]
Abstract
Bioplastics are one of the answers that can point society toward a sustainable future. Under this premise, the synthesis of polymers with competitive properties using low-cost starting materials is a highly desired factor in the industry. Also, tackling environmental issues such as nonbiodegradable waste generation, high carbon footprint, and consumption of nonrenewable resources are some of the current concerns worldwide. The scientific community has been placing efforts into the biosynthesis of polymers using bacteria and other microbes. These microorganisms can be convenient reactors to consume food and agricultural wastes and convert them into biopolymers with inherently attractive properties such as biodegradability, biocompatibility, and appreciable mechanical and chemical properties. Such biopolymers can be applied to several fields such as packing, cosmetics, pharmaceutical, medical, biomedical, and agricultural. Thus, intending to elucidate the science of microbes to produce polymers, this review starts with a brief introduction to bioplastics by describing their importance and the methods for their production. The second section dives into the importance of bacteria regarding the biochemical routes for the synthesis of polymers along with their advantages and disadvantages. The third section covers some of the main parameters that influence biopolymers' production. Some of the main applications of biopolymers along with a comparison between the polymers obtained from microorganisms and the petrochemical-based ones are presented. Finally, some discussion about the future aspects and main challenges in this field is provided to elucidate the main issues that should be tackled for the wide application of microorganisms for the preparation of bioplastics.
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Affiliation(s)
- Felipe
Martins de Souza
- National
Institute for Materials Advancement, Pittsburgh
State University, 1204 Research Road, Pittsburgh, Kansas 66762, United States
| | - Ram K. Gupta
- National
Institute for Materials Advancement, Pittsburgh
State University, 1204 Research Road, Pittsburgh, Kansas 66762, United States
- Department
of Chemistry, Pittsburgh State University, 1701 South Broadway Street, Pittsburgh, Kansas 66762, United States
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5
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Zhu Y, Tao Y. Stereoselective Ring-opening Polymerization of S-Carboxyanhydrides Using Salen Aluminum Catalysts: A Route to High-Isotactic Functionalized Polythioesters. Angew Chem Int Ed Engl 2024; 63:e202317305. [PMID: 38179725 DOI: 10.1002/anie.202317305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
Polythioesters are important sustainable polymers with broad applications. The ring-opening polymerization (ROP) of S-Carboxyanhydrides (SCAs) can afford polythioesters with functional groups that are typically difficult to prepare by ROP of thiolactones. Typical methods involving organocatalysts, like dimethylaminopyridine (DMAP) and triethylamine (Et3 N), have been plagued by uncontrolled polymerization, including epimerization for most SCAs resulting in the loss of isotacticity. Here, we report the use of salen aluminum catalysts for the selective ROP of various SCAs without epimerization, affording functionalized polythioester with high molecular weight up to 37.6 kDa and the highest Pm value up to 0.99. Notably, the ROP of TlaSCA (SCA prepared from thiolactic acid) generates the first example of a isotactic crystalline poly(thiolactic acid), which exhibited a distinct Tm value of 152.6 °C. Effective ligand tailoring governs the binding affinity between the sulfide chain-end and the metal center, thereby maintaining the activity of organometallic catalysts and reducing the occurrence of epimerization reactions.
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Affiliation(s)
- Yinuo Zhu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
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6
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Mierzati M, Miyahara Y, Curial B, Nomura CT, Taguchi S, Abe H, Tsuge T. Tacticity Characterization of Biosynthesized Polyhydroxyalkanoates Containing ( S)- and ( R)-3-Hydroxy-2-Methylpropionate Units. Biomacromolecules 2024; 25:444-454. [PMID: 38135668 DOI: 10.1021/acs.biomac.3c01069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
Polyhydroxyalkanoates (PHAs), aliphatic polyesters synthesized by microorganisms, have gained considerable attention as biodegradable plastics. Recently, α-carbon-methylated PHAs have been shown to exhibit several interesting properties that differ from those of conventional PHAs, such as their crystallization behavior and material properties. This study investigated α-carbon methylated (S)- and (R)-3-hydroxy-2-methylpropionate (3H2MP) as new repeating units. 3H2MP units were homopolymerized or copolymerized with (R)-3-hydroxybutyrate (3HB) by manipulating the culture conditions of recombinant Escherichia coli LSBJ. Consequently, PHAs with 3H2MP units ranging from 5 to 100 mol % were synthesized by external addition of (R)- and (S)-enantiomers or the racemic form of 3H2MPNa. The (S)-3H2MP precursor supplemented into the culture medium was almost directly polymerized into PHA while maintaining its chirality. Therefore, a highly isotactic P(3H2MP) (R:S = 1:99) was synthesized, which displayed a melting temperature of 114-119 °C and a relatively high enthalpy of fusion (68 J/g). In contrast, in cultures supplemented with (R)-3H2MP, the precursor was racemized and polymerized into PHA, resulting in the synthesis of the amorphous polymer atactic P(3H2MP) (R:S = 40:60). However, racemization was not observed at a low concentration of the (R)-3H2MP precursor, thereby synthesizing P(3HB-co-8 mol % 3H2MP) with 100% (R)-3H2MP units. The thermogravimetric analysis revealed that the thermal degradation temperatures at 5% weight loss of P(3H2MP)s occurred at approximately 313 °C, independent of tacticity, which is substantially higher than that of P(3HB) (257 °C). This study demonstrates a new concept for controlling the physical properties of biosynthesized PHA by manipulating the polymers' tacticity using 3H2MP units.
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Affiliation(s)
- Maierwufu Mierzati
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
| | - Yuki Miyahara
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
| | - Blanche Curial
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
| | - Christopher T Nomura
- Department of Biological Sciences, College of Science, University of Idaho, 875 Perimeter Dr, Moscow, Idaho 83844-3010, United States
| | - Seiichi Taguchi
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada, Kobe 657-8501, Japan
| | - Hideki Abe
- Bioplastic Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takeharu Tsuge
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
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7
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Xie X, Huo Z, Jang E, Tong R. Recent advances in enantioselective ring-opening polymerization and copolymerization. Commun Chem 2023; 6:202. [PMID: 37775528 PMCID: PMC10541874 DOI: 10.1038/s42004-023-01007-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/15/2023] [Indexed: 10/01/2023] Open
Abstract
Precisely controlling macromolecular stereochemistry and sequences is a powerful strategy for manipulating polymer properties. Controlled synthetic routes to prepare degradable polyester, polycarbonate, and polyether are of recent interest due to the need for sustainable materials as alternatives to petrochemical-based polyolefins. Enantioselective ring-opening polymerization and ring-opening copolymerization of racemic monomers offer access to stereoregular polymers, specifically enantiopure polymers that form stereocomplexes with improved physicochemical and mechanical properties. Here, we highlight the state-of-the-art of this polymerization chemistry that can produce microstructure-defined polymers. In particular, the structures and performances of various homogeneous enantioselective catalysts are presented. Trends and future challenges of such chemistry are discussed.
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Affiliation(s)
- Xiaoyu Xie
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia, 24061, USA
| | - Ziyu Huo
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia, 24061, USA
| | - Eungyo Jang
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia, 24061, USA
| | - Rong Tong
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia, 24061, USA.
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8
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Kawada J, Kitou M, Mouri M, Ario T, Kato K. Invention of biobased polymer alloys and their application in plastic automobile parts. Polym J 2023. [DOI: 10.1038/s41428-023-00760-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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9
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Biosynthesis and Properties of Sulfur-Containing Polyhydroxyalkanoates (PHAs) Produced by Wild-Type Strain Cupriavidus necator B-10646. Polymers (Basel) 2023; 15:polym15041005. [PMID: 36850288 PMCID: PMC9963769 DOI: 10.3390/polym15041005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/09/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
The study addresses the growth of the wild-type strain Cupriavidus necator B-10646 and the synthesis of sulfur-containing polyhydroxyalkanoates (PHA) by this strain on media containing fructose and three different precursors (3-mercaptopropionic acid, 3',3'-dithiodipropionic acid and 3',3'-thiodipropionic acid). By varying the concentration and number of doses of the precursors added into the bacterial culture, it was possible to find conditions that ensure the formation of 3-mercaptopropionate (3MP) monomers from the precursors and their incorporation into the C-chain of poly(3-hydroxybutyrate). A series of P(3HB-co-3MP) copolymer samples with different content of 3MP monomers (from 2.04 to 39.0 mol.%) were synthesized and the physicochemical properties were studied. The effect of 3MP monomers is manifested in a certain decrease in the molecular weight of the samples and an increase in polydispersity. Temperature changes are manifested in the appearance of two peaks in the melting region with different intervals regardless of the 3MP content. The studied P(3HB-co-3MP) samples, regardless of the content of 3MP monomers, are characterized by equalization of the ratio of the amorphous and crystalline phases and have a close degree of crystallinity with a minimum of 42%, = and a maximum of 54%.
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10
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Oxidation of methionine-derived 2-hydroxyalkanoate unit in biosynthesized polyhydroxyalkanoate copolymers. Int J Biol Macromol 2022; 224:840-847. [DOI: 10.1016/j.ijbiomac.2022.10.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/12/2022] [Accepted: 10/20/2022] [Indexed: 11/05/2022]
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11
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Li H, Guillaume SM, Carpentier J. Polythioesters Prepared by Ring-Opening Polymerization of Cyclic Thioesters and Related Monomers. Chem Asian J 2022; 17:e202200641. [PMID: 35816010 PMCID: PMC9543045 DOI: 10.1002/asia.202200641] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/07/2022] [Indexed: 11/11/2022]
Abstract
Polyhydroxyalkanoates (PHAs) are biodegradable and biocompatible polyesters with a wide range of applications; in particular, they currently stand as promising alternatives to conventional polyolefin-based "plastics". The introduction of sulfur atoms within the PHAs backbone can endow the resulting polythioesters (PTEs) with differentiated, sometimes enhanced thermal, optical and mechanical properties, thereby widening their versatility and use. Hence, PTEs have been gaining increasing attention over the past half-decade. This review highlights recent advances towards the synthesis of well-defined PTEs by ring-opening polymerization (ROP) of cyclic thioesters - namely thiolactones - as well as of S-carboxyanhydrides and thionolactones; it also covers the ring-opening copolymerization (ROCOP) of cyclic thioanhydrides or thiolactones with epoxides or episulfides. Most of the ROP reactions described are of anionic type, mediated by inorganic, organic or organometallic initiators/catalysts, along with a few enzymatic reactions as well. Emphasis is placed on the reactivity of the thio monomers, in relation to their ring-size ranging from 4- to 5-, 6- and 7-membered cycles, the nature of the catalyst/initiating systems implemented and their efficiency in terms of activity and control over the PTE molar mass, dispersity, topology, and microstructure.
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Affiliation(s)
- Hui Li
- Univ RennesCNRSISCR-UMR 622635000RennesFrance
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12
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Ceneviva LVS, Mierzati M, Miyahara Y, Nomura CT, Taguchi S, Abe H, Tsuge T. Poly(3-mercapto-2-methylpropionate), a Novel α-Methylated Bio-Polythioester with Rubber-like Elasticity, and Its Copolymer with 3-hydroxybutyrate: Biosynthesis and Characterization. Bioengineering (Basel) 2022; 9:bioengineering9050228. [PMID: 35621506 PMCID: PMC9137767 DOI: 10.3390/bioengineering9050228] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 02/08/2023] Open
Abstract
A new polythioester (PTE), poly(3-mercapto-2-methylpropionate) [P(3M2MP)], and its copolymer with 3-hydroxybutyrate (3HB) were successfully biosynthesized from 3-mercapto-2-methylpropionic acid as a structurally-related precursor. This is the fourth PTE of biological origin and the first to be α-methylated. P(3M2MP) was biosynthesized using an engineered Escherichia coli LSBJ, which has a high molecular weight, amorphous structure, and elastomeric properties, reaching 2600% elongation at break. P(3HB-co-3M2MP) copolymers were synthesized by expressing 3HB-supplying enzymes. The copolymers were produced with high content in the cells and showed a high 3M2MP unit incorporation of up to 77.2 wt% and 54.8 mol%, respectively. As the 3M2MP fraction in the copolymer increased, the molecular weight decreased and the polymers became softer, more flexible, and less crystalline, with lower glass transition temperatures and higher elongations at break. The properties of this PTE were distinct from those of previously biosynthesized PTEs, indicating that the range of material properties can be further expanded by introducing α-methylated thioester monomers.
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Affiliation(s)
- Lucas Vinicius Santini Ceneviva
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan; (L.V.S.C.); (M.M.); (Y.M.)
| | - Maierwufu Mierzati
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan; (L.V.S.C.); (M.M.); (Y.M.)
| | - Yuki Miyahara
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan; (L.V.S.C.); (M.M.); (Y.M.)
| | - Christopher T. Nomura
- Department of Biological Sciences, College of Science, University of Idaho, 875 Perimeter Dr., Moscow, ID 83844-3010, USA;
| | - Seiichi Taguchi
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada, Kobe 657-8501, Japan;
| | - Hideki Abe
- Bioplastic Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;
| | - Takeharu Tsuge
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan; (L.V.S.C.); (M.M.); (Y.M.)
- Correspondence:
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13
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Li H, Ollivier J, Guillaume SM, Carpentier JF. Tacticity Control of Cyclic Poly(3-Thiobutyrate) Prepared by Ring-Opening Polymerization of Racemic β-Thiobutyrolactone. Angew Chem Int Ed Engl 2022; 61:e202202386. [PMID: 35286752 DOI: 10.1002/anie.202202386] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Indexed: 12/19/2022]
Abstract
We report here on the ring-opening polymerization (ROP) of racemic β-thiobutyrolactone (rac-TBL), as the first chemical synthesis of poly(3-thiobutyrolactone) (P3TB), the thioester analogue of the ubiquitous poly(3-hydroxybutyrate) (P3HB). The ROP reactions proceed very fast (TOF >12 000 h-1 at r.t.) in the presence of various metal-based catalysts. Remarkably, catalyst systems based on non-chiral yttrium complexes stabilized by tetradentate amino alkoxy- or diamino-bis(phenolate) ligands {ONXOR1,R2 }2- (X=O, N) provide access to cyclic P3TB with either high isoselectivity (Pm up to 0.90) or high syndiotactic bias (Pr up to 0.70). The stereoselectivity can be controlled by manipulation of the substituents on the ligand platform and adequate choice of the reaction solvent and temperature as well. The cyclic polymer topology is evidenced by MALDI-ToF MS, NMR and TGA. Highly isotactic cyclic P3TB is a semi-crystalline material as revealed by DSC.
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Affiliation(s)
- Hui Li
- Univ Rennes, CNRS, ISCR-UMR 6226, 35000, Rennes, France
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14
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Amara AAAF. Natural Polymer Types and Applications. BIOMOLECULES FROM NATURAL SOURCES 2022:31-81. [DOI: 10.1002/9781119769620.ch2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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15
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Li H, Ollivier J, Guillaume SM, Carpentier J. Tacticity Control of Cyclic Poly(3‐Thiobutyrate) Prepared by Ring‐Opening Polymerization of Racemic β‐Thiobutyrolactone. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hui Li
- Univ Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
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16
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Cao X, Wang H, Yang J, Wang R, Hong X, Zhang X, Xu J, Wang H. Sulfur-substitution-enhanced crystallization and crystal structure of poly(trimethylene monothiocarbonate). CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.07.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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17
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Plajer AJ, Williams CK. Heterocycle/Heteroallene Ring-Opening Copolymerization: Selective Catalysis Delivering Alternating Copolymers. Angew Chem Int Ed Engl 2022; 61:e202104495. [PMID: 34015162 PMCID: PMC9298364 DOI: 10.1002/anie.202104495] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Indexed: 11/29/2022]
Abstract
Heteroatom-containing polymers have strong potential as sustainable replacements for petrochemicals, show controllable monomer-polymer equilibria and properties spanning plastics, elastomers, fibres, resins, foams, coatings, adhesives, and self-assembled nanostructures. Their current and future applications span packaging, house-hold goods, clothing, automotive components, electronics, optical materials, sensors, and medical products. An interesting route to these polymers is the catalysed ring-opening copolymerisation (ROCOP) of heterocycles and heteroallenes. It is a living polymerization, occurs with high atom economy, and creates precise, new polymer structures inaccessible by traditional methods. In the last decade there has been a renaissance in research and increasing examples of commercial products made using ROCOP. It is better known in the production of polycarbonates and polyesters, but is also a powerful route to make N-, S-, and other heteroatom-containing polymers, including polyamides, polycarbamates, and polythioesters. This Review presents an overview of the different catalysts, monomer combinations, and polymer classes that can be accessed by heterocycle/heteroallene ROCOP.
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Affiliation(s)
- Alex J. Plajer
- Oxford ChemistryChemical Research Laboratory12 Mansfield RoadOxfordOX1 3TAUK
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18
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Plajer AJ, Williams CK. Heterocycle/Heteroallene Ring‐Opening Copolymerization: Selective Catalysis Delivering Alternating Copolymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202104495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alex J. Plajer
- Oxford Chemistry Chemical Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
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19
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Kim S, Kim KJ. Crystal Structure and Molecular Mechanism of Phosphotransbutyrylase from Clostridium acetobutylicum. J Microbiol Biotechnol 2021; 31:1393-1400. [PMID: 34584034 PMCID: PMC9706017 DOI: 10.4014/jmb.2109.09036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 09/17/2021] [Accepted: 09/23/2021] [Indexed: 12/15/2022]
Abstract
Acetone-butanol-ethanol (ABE) fermentation by the anaerobic bacterium Clostridium acetobutylicum has been considered a promising process of industrial biofuel production. Phosphotransbutyrylase (phosphate butyryltransferase, PTB) plays a crucial role in butyrate metabolism by catalyzing the reversible conversion of butyryl-CoA into butyryl phosphate. Here, we report the crystal structure of PTB from the Clostridial host for ABE fermentation, C. acetobutylicum, (CaPTB) at a 2.9 Å resolution. The overall structure of the CaPTB monomer is quite similar to those of other acyltransferases, with some regional structural differences. The monomeric structure of CaPTB consists of two distinct domains, the N- and C-terminal domains. The active site cleft was formed at the interface between the two domains. Interestingly, the crystal structure of CaPTB contained eight molecules per asymmetric unit, forming an octamer, and the size-exclusion chromatography experiment also suggested that the enzyme exists as an octamer in solution. The structural analysis of CaPTB identifies the substrate binding mode of the enzyme and comparisons with other acyltransferase structures lead us to speculate that the enzyme undergoes a conformational change upon binding of its substrate.
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Affiliation(s)
- Sangwoo Kim
- School of Life Sciences, BK21 FOUR KNU Creative BioSesearch Group, Kyungpook National University, Daegu 41566, Republic of Korea,KNU Institute for Microorganisms, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Kyung-Jin Kim
- School of Life Sciences, BK21 FOUR KNU Creative BioSesearch Group, Kyungpook National University, Daegu 41566, Republic of Korea,KNU Institute for Microorganisms, Kyungpook National University, Daegu 41566, Republic of Korea,Corresponding author Phone: +82-53-950-5377 Fax: +82-53-955-5522 E-mail:
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Bacterial Biopolymer: Its Role in Pathogenesis to Effective Biomaterials. Polymers (Basel) 2021; 13:polym13081242. [PMID: 33921239 PMCID: PMC8069653 DOI: 10.3390/polym13081242] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 12/17/2022] Open
Abstract
Bacteria are considered as the major cell factories, which can effectively convert nitrogen and carbon sources to a wide variety of extracellular and intracellular biopolymers like polyamides, polysaccharides, polyphosphates, polyesters, proteinaceous compounds, and extracellular DNA. Bacterial biopolymers find applications in pathogenicity, and their diverse materialistic and chemical properties make them suitable to be used in medicinal industries. When these biopolymer compounds are obtained from pathogenic bacteria, they serve as important virulence factors, but when they are produced by non-pathogenic bacteria, they act as food components or biomaterials. There have been interdisciplinary studies going on to focus on the molecular mechanism of synthesis of bacterial biopolymers and identification of new targets for antimicrobial drugs, utilizing synthetic biology for designing and production of innovative biomaterials. This review sheds light on the mechanism of synthesis of bacterial biopolymers and its necessary modifications to be used as cell based micro-factories for the production of tailor-made biomaterials for high-end applications and their role in pathogenesis.
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Wang Y, Li M, Wang S, Tao Y, Wang X. S
‐Carboxyanhydrides: Ultrafast and Selective Ring‐Opening Polymerizations Towards Well‐defined Functionalized Polythioesters. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016228] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yanchao Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Maosheng Li
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
| | - Shixue Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
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Wang Y, Li M, Wang S, Tao Y, Wang X. S-Carboxyanhydrides: Ultrafast and Selective Ring-Opening Polymerizations Towards Well-defined Functionalized Polythioesters. Angew Chem Int Ed Engl 2021; 60:10798-10805. [PMID: 33605001 DOI: 10.1002/anie.202016228] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Indexed: 12/27/2022]
Abstract
Aliphatic polythioesters are popular polymers because of their appealing performance such as metal coordination ability, high refractive indices, and biodegradability. One of the most powerful approaches for generating these polymers is the ring-opening polymerization (ROP) of cyclic monomers. However, the synthesis of precisely controlled polythioesters via ROP of thiolactones still faces formidable challenges, including the minimal functional diversity of available thiolactone monomers, as well as inevitable transthioesterification side reactions. Here we introduce a hyperactive class of S-carboxyanhydride (SCA) monomers derived from amino acids that are significantly more reactive than thiolactones for ultrafast and selective ROP. Inclusion of the initiator PPNOBz ([PPN]=bis(triphenylphosphine)-iminium) with chain transfer agent benzoic acid, the polymerizations that can be operated in open vessels reach complete conversion within minutes (1-2 min) at room temperature, yielding polythioesters with predictable molecular weight, low dispersities, retained stereoregularity and chemical recyclability. Most fascinating are the functionalized SCAs that allow the incorporating of functional groups along the polythioester chain and thus finely tune their physicochemical performance. Computational studies were carried out to explore the origins of the distinctive rapidity and exquisite selectivity of the polymerizations, offering mechanistic insight and explaining why high polymerizability of SCA monomer is able to facilitate exquisitely selective ring-opening for enchainment over competing transthioesterification and backbiting reactions.
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Affiliation(s)
- Yanchao Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.,University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Maosheng Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Shixue Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.,University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
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23
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Polymer side-chain modification in methacrylate and styrene copolymers through thiol-thioester dynamic exchange. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109918] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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24
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Geminal Dimethyl Substitution Enables Controlled Polymerization of Penicillamine-Derived β-Thiolactones and Reversed Depolymerization. Chem 2020. [DOI: 10.1016/j.chempr.2020.06.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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25
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Wang LY, Gu GG, Ren BH, Yue TJ, Lu XB, Ren WM. Intramolecularly Cooperative Catalysis for Copolymerization of Cyclic Thioanhydrides and Epoxides: A Dual Activation Strategy to Well-Defined Polythioesters. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00906] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Li-Yang Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Ge-Ge Gu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Bai-Hao Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Tian-Jun Yue
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
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26
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Hassan MA, Bakhiet EK, Hussein HR, Ali SG. Statistical optimization studies for polyhydroxybutyrate (PHB) production by novel Bacillus subtilis using agricultural and industrial wastes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY 2019; 16:3497-3512. [DOI: 10.1007/s13762-018-1900-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/21/2018] [Accepted: 07/06/2018] [Indexed: 10/30/2023]
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27
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Huang P, Furutate S, Mizuno S, Tsuge T. Thermal degradation behavior of bacterial poly(3-hydroxybutyrate-co-3-mercaptopropionate). Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.04.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Ghisu L, Melis N, Serusi L, Luridiana A, Soddu F, Secci F, Caboni P, Guillot R, Aitken DJ, Frongia A. Synthesis of β-sulfinyl cyclobutane carboxylic amides via a formal α to β sulphoxide migration process. Org Biomol Chem 2019; 17:6143-6147. [PMID: 31180093 DOI: 10.1039/c9ob00758j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An original tandem reaction consisting of a thermal elimination-addition process was developed. Highly substituted β-sulfinyl cyclobutane carboxylic acid derivatives were obtained from isomeric α-sulfinyl derivatives in a single operation in good to high yields and with high trans diastereoselectivity.
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Affiliation(s)
- Lorenza Ghisu
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Complesso Universitario di Monserrato, S.S. 554, Bivio per Sestu, I-09042, Monserrato, Cagliari, Italy.
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29
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Wang LY, Gu GG, Yue TJ, Ren WM, Lu XB. Semiaromatic Poly(thioester) from the Copolymerization of Phthalic Thioanhydride and Epoxide: Synthesis, Structure, and Properties. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00073] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Li-Yang Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Ge-Ge Gu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Tian-Jun Yue
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
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30
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Yue T, Zhang M, Gu G, Wang L, Ren W, Lu X. Precise Synthesis of Poly(thioester)s with Diverse Structures by Copolymerization of Cyclic Thioanhydrides and Episulfides Mediated by Organic Ammonium Salts. Angew Chem Int Ed Engl 2019; 58:618-623. [DOI: 10.1002/anie.201812135] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/15/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Tian‐Jun Yue
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Ming‐Chao Zhang
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Ge‐Ge Gu
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Li‐Yang Wang
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Wei‐Min Ren
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Xiao‐Bing Lu
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
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31
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Yue T, Zhang M, Gu G, Wang L, Ren W, Lu X. Precise Synthesis of Poly(thioester)s with Diverse Structures by Copolymerization of Cyclic Thioanhydrides and Episulfides Mediated by Organic Ammonium Salts. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tian‐Jun Yue
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Ming‐Chao Zhang
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Ge‐Ge Gu
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Li‐Yang Wang
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Wei‐Min Ren
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Xiao‐Bing Lu
- State Key Laboratory of Fine ChemicalsDalian University of Technology 2 Linggong Road Dalian 116024 China
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32
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Mutlu H, Ceper EB, Li X, Yang J, Dong W, Ozmen MM, Theato P. Sulfur Chemistry in Polymer and Materials Science. Macromol Rapid Commun 2018; 40:e1800650. [DOI: 10.1002/marc.201800650] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/17/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Hatice Mutlu
- Institute for Biological Interfaces III; Karlsruhe Institute of Technology; Herrmann-von-Helmholtz-Platz 1 D-76344 Eggenstein-Leopoldshafen Germany
| | - Ezgi Berfin Ceper
- Department of Bioengineering; Yildiz Technical University; Esenler 34220 Istanbul Turkey
| | - Xiaohui Li
- Institute for Chemical Technology and Polymer Chemistry; Karlsruhe Institute of Technology (KIT); Engesser Str. 18 D-76131 Karlsruhe Germany
| | - Jingmei Yang
- Institute for Chemical Technology and Polymer Chemistry; Karlsruhe Institute of Technology (KIT); Engesser Str. 18 D-76131 Karlsruhe Germany
- Institute of Fundamental Science and Frontiers; University of Electronic Science and Technology of China; Chengdu 610054 China
| | - Wenyuan Dong
- Institute for Chemical Technology and Polymer Chemistry; Karlsruhe Institute of Technology (KIT); Engesser Str. 18 D-76131 Karlsruhe Germany
| | - Mehmet Murat Ozmen
- Department of Bioengineering; Yildiz Technical University; Esenler 34220 Istanbul Turkey
| | - Patrick Theato
- Institute for Biological Interfaces III; Karlsruhe Institute of Technology; Herrmann-von-Helmholtz-Platz 1 D-76344 Eggenstein-Leopoldshafen Germany
- Institute for Chemical Technology and Polymer Chemistry; Karlsruhe Institute of Technology (KIT); Engesser Str. 18 D-76131 Karlsruhe Germany
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Andreeßen C, Steinbüchel A. Recent developments in non-biodegradable biopolymers: Precursors, production processes, and future perspectives. Appl Microbiol Biotechnol 2018; 103:143-157. [DOI: 10.1007/s00253-018-9483-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/20/2018] [Accepted: 10/23/2018] [Indexed: 12/26/2022]
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34
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Brandt U, Galant G, Meinert-Berning C, Steinbüchel A. Functional analysis of active amino acid residues of the mercaptosuccinate dioxygenase of Variovorax paradoxus B4. Enzyme Microb Technol 2018; 120:61-68. [PMID: 30396400 DOI: 10.1016/j.enzmictec.2018.09.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/23/2018] [Accepted: 09/20/2018] [Indexed: 01/20/2023]
Abstract
Thiol dioxygenases are non-heme mononuclear-iron proteins and belong to the cupin superfamily. In 2014, mercaptosuccinate dioxygenase (Msdo) of Variovorax paradoxus B4 was identified as another bacterial cysteine dioxygenase (Cdo) homolog catalyzing the conversion of mercaptosuccinate (MS) into succinate and sulfite. To gain further insights into potentially important amino acid residues for enzyme activity, seven enzyme variants were generated and analyzed. (i) Three variants comprised the substitution of one conserved histidine residue each by leucine, either supposed to be mandatory for coordination of the Fe(II) cofactor (H93 and H95) or to be important for substrate positioning within the active site (H163). The corresponding enzyme variants were completely inactive confirming their essential roles for enzyme activity. (ii) Mutation C100S resulted as well in an inactive enzyme demonstrating its importance for either stability or activity of the protein. (iii) For eukaryotic Cdo, a hydrogen bond network for substrate positioning was postulated, and the corresponding amino acids are basically present in Msdo. Albeit the MsdoQ64A mutation exhibited an increased Km of 0.29 mM when compared to the wildtype with 0.06 mM, it did not significantly affect the specific activity. (iv) The variant MsdoR66A showed only very low activity even when high amounts of enzyme were applied indicating that this residue might be important for catalysis. (v) No strong effect had the mutation Y165F for which a specific enzyme activity of 10.22 μmol min-1 mg-1 protein and a Km value of 0.06 mM with high similarity to those of the wildtype enzyme were obtained. This residue corresponds to Y157 of human Cdo, which is part of the catalytic triad and is supposed to be involved in substrate positioning. Apparently, another residue could fulfill this role in Msdo, since the loss of Y165 did not have a strong effect.
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Affiliation(s)
- Ulrike Brandt
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität, D-48149 Münster, Germany
| | - Gulsina Galant
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität, D-48149 Münster, Germany
| | - Christina Meinert-Berning
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität, D-48149 Münster, Germany
| | - Alexander Steinbüchel
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität, D-48149 Münster, Germany; Environmental Science Department, King Abdulaziz University, Jeddah, Saudi Arabia.
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35
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Yue TJ, Ren WM, Chen L, Gu GG, Liu Y, Lu XB. Synthesis of Chiral Sulfur-Containing Polymers: Asymmetric Copolymerization of meso
-Epoxides and Carbonyl Sulfide. Angew Chem Int Ed Engl 2018; 57:12670-12674. [DOI: 10.1002/anie.201805200] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/31/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Tian-Jun Yue
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Li Chen
- Faculty of Machenical Engineering Materials and Energy; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Ge-Ge Gu
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Ye Liu
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
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36
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Yue TJ, Ren WM, Chen L, Gu GG, Liu Y, Lu XB. Synthesis of Chiral Sulfur-Containing Polymers: Asymmetric Copolymerization of meso
-Epoxides and Carbonyl Sulfide. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805200] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tian-Jun Yue
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Li Chen
- Faculty of Machenical Engineering Materials and Energy; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Ge-Ge Gu
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Ye Liu
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road Dalian 116024 China
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37
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Farjadian F, Moghoofei M, Mirkiani S, Ghasemi A, Rabiee N, Hadifar S, Beyzavi A, Karimi M, Hamblin MR. Bacterial components as naturally inspired nano-carriers for drug/gene delivery and immunization: Set the bugs to work? Biotechnol Adv 2018; 36:968-985. [PMID: 29499341 PMCID: PMC5971145 DOI: 10.1016/j.biotechadv.2018.02.016] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/20/2018] [Accepted: 02/26/2018] [Indexed: 12/28/2022]
Abstract
Drug delivery is a rapidly growing area of research motivated by the nanotechnology revolution, the ideal of personalized medicine, and the desire to reduce the side effects of toxic anti-cancer drugs. Amongst a bewildering array of different nanostructures and nanocarriers, those examples that are fundamentally bio-inspired and derived from natural sources are particularly preferred. Delivery of vaccines is also an active area of research in this field. Bacterial cells and their components that have been used for drug delivery, include the crystalline cell-surface layer known as "S-layer", bacterial ghosts, bacterial outer membrane vesicles, and bacterial products or derivatives (e.g. spores, polymers, and magnetic nanoparticles). Considering the origin of these components from potentially pathogenic microorganisms, it is not surprising that they have been applied for vaccines and immunization. The present review critically summarizes their applications focusing on their advantages for delivery of drugs, genes, and vaccines.
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Affiliation(s)
- Fatemeh Farjadian
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohsen Moghoofei
- Department of Microbiology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Soroush Mirkiani
- Biomaterials Laboratory, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Amir Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
| | - Navid Rabiee
- Department of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Shima Hadifar
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran
| | - Ali Beyzavi
- Koch institute of MIT, 500 Main Street, Cambridge, MA, USA
| | - Mahdi Karimi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran; Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA.
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38
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Andreeßen C, Wolf N, Cramer B, Humpf HU, Steinbüchel A. In vitro biosynthesis of 3-mercaptolactate by lactate dehydrogenases. Enzyme Microb Technol 2018; 108:1-10. [DOI: 10.1016/j.enzmictec.2017.08.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 11/17/2022]
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39
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40
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Rai R, Roether JA, Knowles JC, Mordan N, Salih V, Locke IC, Gordge MP, McCormick A, Mohn D, Stark WJ, Keshavarz T, Boccaccini AR, Roy I. Highly elastomeric poly(3-hydroxyoctanoate) based natural polymer composite for enhanced keratinocyte regeneration. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1217530] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ranjana Rai
- Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Judith A. Roether
- Department of Materials Science and Engineering, University of Erlangen – Nuremberg, Erlangen, Germany
| | - Jonathan C. Knowles
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, London, United Kingdom
- WCU Research Centre of Nanobiomedical Science, Dankook University, Chungnam, South Korea
| | - Nicola Mordan
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, London, United Kingdom
| | - Vehid Salih
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, London, United Kingdom
| | - Ian C. Locke
- Department of Biomedical Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Michael P. Gordge
- Department of Biomedical Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Aine McCormick
- Hemophilia Reference Centre, St. Thomas’ Hospital, London, United Kingdom
| | - Dirk Mohn
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
- Department of Preventive Dentistry, Periodontology, and Cardiology, University of Zurich Center of Dental Medicine, Zurich, Switzerland
| | - Wendelin J. Stark
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Tajalli Keshavarz
- Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Aldo R. Boccaccini
- Department of Materials Science and Engineering, University of Erlangen – Nuremberg, Erlangen, Germany
| | - Ipsita Roy
- Department of Life Sciences, Faculty of Science and Technology, University of Westminster, London, United Kingdom
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41
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Martínez V, de Santos PG, García-Hidalgo J, Hormigo D, Prieto MA, Arroyo M, de la Mata I. Novel extracellular medium-chain-length polyhydroxyalkanoate depolymerase from Streptomyces exfoliatus K10 DSMZ 41693: a promising biocatalyst for the efficient degradation of natural and functionalized mcl-PHAs. Appl Microbiol Biotechnol 2015; 99:9605-15. [PMID: 26156240 DOI: 10.1007/s00253-015-6780-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 06/15/2015] [Accepted: 06/17/2015] [Indexed: 11/30/2022]
Abstract
Cloning and biochemical characterization of a novel extracellular medium-chain-length polyhydroxyalkanoate (mcl-PHA) depolymerase from Streptomyces exfoliatus K10 DSMZ 41693 are described. The primary structure of the depolymerase (PhaZSex2) includes the lipase consensus sequence (serine-histidine-aspartic acid) which is known for serine hydrolases. Secondary structure analysis shows 7.9 % α-helix, 43.9 % β-sheet, 19.4 % β-turns, and 31.2 % random coil, suggesting that this enzyme belongs to the α/β hydrolase fold family, in agreement with other PHA depolymerases and lipases. The enzyme was efficiently produced as an extracellular active form in Rhodococcus and purified by two consecutive hydrophobic chromatographic steps. Matrix-assisted laser desorption-time-of-flight (MALDI-TOF) analysis of the purified enzyme revealed a monomer of 27.6 kDa with a midpoint transition temperature of 44.2 °C. Remarkably, the activity is significantly enhanced by low concentrations of nonionic and anionic detergents and thermal stability is improved by the presence of 10 % glycerol. PhaZSex2 is an endo-exohydrolase that cleaves both large and small PHA molecules, producing (R)-3-hydroxyoctanoic acid monomers as the main reaction product. Markedly, PhaZSex2 is able to degrade functionalized polymers containing thioester groups in the side chain (PHACOS), releasing functional thioester-based monomers and oligomers demonstrating the potentiality of this novel biocatalyst for the industrial production of enantiopure (R)-3-hydroxyalkanoic acids.
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Affiliation(s)
- Virginia Martínez
- Department of Biochemistry and Molecular Biology, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain.,Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Hørsholm, Denmark
| | - Patricia Gómez de Santos
- Department of Biochemistry and Molecular Biology, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain.,Department of Biocatalysis, Institute of Catalysis, CSIC, Madrid, Spain
| | - Javier García-Hidalgo
- Department of Biochemistry and Molecular Biology, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
| | - Daniel Hormigo
- Department of Biochemistry and Molecular Biology, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain.,Department of Pharmacy and Biotechnology, Biomedical Sciences Faculty, European University of Madrid, Madrid, Spain
| | - M Auxiliadora Prieto
- Department of Environmental Biology, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Miguel Arroyo
- Department of Biochemistry and Molecular Biology, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
| | - Isabel de la Mata
- Department of Biochemistry and Molecular Biology, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain.
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42
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Wübbeler JH, Hiessl S, Meinert C, Poehlein A, Schuldes J, Daniel R, Steinbüchel A. The genome of Variovorax paradoxus strain TBEA6 provides new understandings for the catabolism of 3,3'-thiodipropionic acid and hence the production of polythioesters. J Biotechnol 2015; 209:85-95. [PMID: 26073999 DOI: 10.1016/j.jbiotec.2015.06.390] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 06/01/2015] [Accepted: 06/09/2015] [Indexed: 11/30/2022]
Abstract
The betaproteobacterium Variovorax paradoxus strain TBEA6 is capable of using 3,3'-thiodipropionic acid (TDP) as sole carbon and energy source for growth. This thioether is employed for several industrial applications. It can be applied as precursor for the biotechnical production of polythioesters (PTE), which represent persistent bioplastics. Consequently, the genome of V. paradoxus strain TBEA6 was sequenced. The draft genome sequence comprises approximately 7.2Mbp and 6852 predicted open reading frames. Furthermore, transposon mutagenesis to unravel the catabolism of TDP in strain TBEA6 was performed. Screening of 20,000 mutants mapped the insertions of Tn5::mob in 32 mutants, which all showed no growth with TDP as sole carbon source. Based on the annotated genome sequence together with transposon-induced mutagenesis, defined gene deletions, in silico analyses and comparative genomics, a comprehensive pathway for the catabolism of TDP is proposed: TDP is imported via the tripartite tricarboxcylate transport system and/or the TRAP-type dicarboxylate transport system. The initial cleavage of TDP into 3-hydroxypropionic acid (3HP) and 3-mercaptopropionic acid (3MP), which serves as precursor substrate for PTE synthesis, is most probably performed by the FAD-dependent oxidoreductase Fox. 3HP is presumably catabolized via malonate semialdehyde, whereas 3MP is oxygenated by the 3MP-dioxygenase Mdo yielding 3-sulfinopropionic acid (3SP). Afterwards, 3SP is linked to coenzyme A. The next step is the abstraction of sulfite by a desulfinase, and the resulting propionyl-CoA enters the central metabolism. Sulfite is oxidized to sulfate by the sulfite-oxidizing enzyme SoeABC and is subsequently excreted by the cells by the sulfate exporter Pse.
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Affiliation(s)
- Jan Hendrik Wübbeler
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Sebastian Hiessl
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Christina Meinert
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Anja Poehlein
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institut für Mikrobiologie und Genetik, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Jörg Schuldes
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institut für Mikrobiologie und Genetik, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Rolf Daniel
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institut für Mikrobiologie und Genetik, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Alexander Steinbüchel
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany; Faculty of Biology, King Abdulaziz University, Jeddah, Saudi Arabia.
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43
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Tessaro D, Pollegioni L, Piubelli L, D’Arrigo P, Servi S. Systems Biocatalysis: An Artificial Metabolism for Interconversion of Functional Groups. ACS Catal 2015. [DOI: 10.1021/cs502064s] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- D. Tessaro
- Dipartimento
di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, p.za L. da Vinci 32, 20133 Milano, Italy
- The
Protein Factory, Centro Interuniversitario di Biotecnologie Proteiche, Politecnico di Milano and Università degli Studi dell’Insubria, via Mancinelli 7, 20131 Milano, Italy
| | - L. Pollegioni
- Dipartimento
di Biotecnologie e Scienze della Vita, Università degli Studi dell’Insubria, via J.H. Dunant 3, 21100 Varese, Italy
- The
Protein Factory, Centro Interuniversitario di Biotecnologie Proteiche, Politecnico di Milano and Università degli Studi dell’Insubria, via Mancinelli 7, 20131 Milano, Italy
| | - L. Piubelli
- Dipartimento
di Biotecnologie e Scienze della Vita, Università degli Studi dell’Insubria, via J.H. Dunant 3, 21100 Varese, Italy
- The
Protein Factory, Centro Interuniversitario di Biotecnologie Proteiche, Politecnico di Milano and Università degli Studi dell’Insubria, via Mancinelli 7, 20131 Milano, Italy
| | - P. D’Arrigo
- Dipartimento
di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, p.za L. da Vinci 32, 20133 Milano, Italy
- The
Protein Factory, Centro Interuniversitario di Biotecnologie Proteiche, Politecnico di Milano and Università degli Studi dell’Insubria, via Mancinelli 7, 20131 Milano, Italy
| | - S. Servi
- The
Protein Factory, Centro Interuniversitario di Biotecnologie Proteiche, Politecnico di Milano and Università degli Studi dell’Insubria, via Mancinelli 7, 20131 Milano, Italy
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Erickson KE, Gill RT, Chatterjee A. CONSTRICTOR: constraint modification provides insight into design of biochemical networks. PLoS One 2014; 9:e113820. [PMID: 25422896 PMCID: PMC4244162 DOI: 10.1371/journal.pone.0113820] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 10/30/2014] [Indexed: 11/18/2022] Open
Abstract
Advances in computational methods that allow for exploration of the combinatorial mutation space are needed to realize the potential of synthetic biology based strain engineering efforts. Here, we present Constrictor, a computational framework that uses flux balance analysis (FBA) to analyze inhibitory effects of genetic mutations on the performance of biochemical networks. Constrictor identifies engineering interventions by classifying the reactions in the metabolic model depending on the extent to which their flux must be decreased to achieve the overproduction target. The optimal inhibition of various reaction pathways is determined by restricting the flux through targeted reactions below the steady state levels of a baseline strain. Constrictor generates unique in silico strains, each representing an “expression state”, or a combination of gene expression levels required to achieve the overproduction target. The Constrictor framework is demonstrated by studying overproduction of ethylene in Escherichia coli network models iAF1260 and iJO1366 through the addition of the heterologous ethylene-forming enzyme from Pseudomonas syringae. Targeting individual reactions as well as combinations of reactions reveals in silico mutants that are predicted to have as high as 25% greater theoretical ethylene yields than the baseline strain during simulated exponential growth. Altering the degree of restriction reveals a large distribution of ethylene yields, while analysis of the expression states that return lower yields provides insight into system bottlenecks. Finally, we demonstrate the ability of Constrictor to scan networks and provide targets for a range of possible products. Constrictor is an adaptable technique that can be used to generate and analyze disparate populations of in silico mutants, select gene expression levels and provide non-intuitive strategies for metabolic engineering.
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Affiliation(s)
- Keesha E. Erickson
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States of America
| | - Ryan T. Gill
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States of America
| | - Anushree Chatterjee
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States of America
- BioFrontiers Institute, University of Colorado, Boulder, Colorado, United States of America
- * E-mail:
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45
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Wübbeler JH, Steinbüchel A. New pathways for bacterial polythioesters. Curr Opin Biotechnol 2014; 29:85-92. [DOI: 10.1016/j.copbio.2014.02.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 11/25/2022]
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46
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Polythioester synthesis in Ralstonia eutropha H16: Novel insights into 3,3′-thiodipropionic acid and 3,3′-dithiodipropionic acid catabolism. J Biotechnol 2014; 184:187-98. [DOI: 10.1016/j.jbiotec.2014.05.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 05/13/2014] [Accepted: 05/19/2014] [Indexed: 12/24/2022]
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47
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Wübbeler JH, Hiessl S, Schuldes J, Thürmer A, Daniel R, Steinbüchel A. Unravelling the complete genome sequence of Advenella mimigardefordensis strain DPN7T and novel insights in the catabolism of the xenobiotic polythioester precursor 3,3'-dithiodipropionate. MICROBIOLOGY-SGM 2014; 160:1401-1416. [PMID: 24739217 DOI: 10.1099/mic.0.078279-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Advenella mimigardefordensis strain DPN7(T) is a remarkable betaproteobacterium because of its extraordinary ability to use the synthetic disulfide 3,3'-dithiodipropionic acid (DTDP) as the sole carbon source and electron donor for aerobic growth. One application of DTDP is as a precursor substrate for biotechnically synthesized polythioesters (PTEs), which are interesting non-degradable biopolymers applicable for plastics materials. Metabolic engineering for optimization of PTE production requires an understanding of DTDP conversion. The genome of A. mimigardefordensis strain DPN7(T) was sequenced and annotated. The circular chromosome was found to be composed of 4,740,516 bp and 4112 predicted ORFs, whereas the circular plasmid consisted of 23,610 bp and 24 predicted ORFs. The genes participating in DTDP catabolism had been characterized in detail previously, but knowing the complete genome sequence and with support of Tn5: :mob-induced mutants, putatively involved transporter proteins and a transcriptional regulator were also identified. Most probably, DTDP is transported into the cell by a specific tripartite tricarboxylate transport system and is then cleaved by the disulfide reductase LpdA, sulfoxygenated by the 3-mercaptopropionate dioxygenase Mdo, activated by the CoA ligase SucCD and desulfinated by the acyl-CoA dehydrogenase-like desulfinase AcdA. Regulation of this pathway is presumably performed by a transcriptional regulator of the xenobiotic response element family. The excessive sulfate that is inevitably produced is secreted by the cells by a unique sulfate exporter of the CPA (cation : proton antiporter) superfamily.
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Affiliation(s)
- Jan Hendrik Wübbeler
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Sebastian Hiessl
- Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Jörg Schuldes
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institut für Mikrobiologie und Genetik, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Andrea Thürmer
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institut für Mikrobiologie und Genetik, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Rolf Daniel
- Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institut für Mikrobiologie und Genetik, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Alexander Steinbüchel
- Faculty of Biology, King Abdulaziz University, Jeddah, Saudi Arabia.,Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
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48
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Riedel SL, Lu J, Stahl U, Brigham CJ. Lipid and fatty acid metabolism in Ralstonia eutropha: relevance for the biotechnological production of value-added products. Appl Microbiol Biotechnol 2013; 98:1469-83. [PMID: 24343766 DOI: 10.1007/s00253-013-5430-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 11/21/2013] [Accepted: 11/22/2013] [Indexed: 11/27/2022]
Abstract
Lipid and fatty acid metabolism has been well studied in model microbial organisms like Escherichia coli and Bacillus subtilis. The major precursor of fatty acid biosynthesis is also the major product of fatty acid degradation (β-oxidation), acetyl-CoA, which is a key metabolite for all organisms. Controlling carbon flux to fatty acid biosynthesis and from β-oxidation allows for the biosynthesis of natural products of biotechnological importance. Ralstonia eutropha can utilize acetyl-CoA from fatty acid metabolism to produce intracellular polyhydroxyalkanoate (PHA). R. eutropha can also be engineered to utilize fatty acid metabolism intermediates to produce different PHA precursors. Metabolism of lipids and fatty acids can be rerouted to convert carbon into other value-added compounds like biofuels. This review discusses the lipid and fatty acid metabolic pathways in R. eutropha and how they can be used to construct reagents for the biosynthesis of products of industrial importance. Specifically, how the use of lipids or fatty acids as the sole carbon source in R. eutropha cultures adds value to these biotechnological products will be discussed here.
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Affiliation(s)
- Sebastian L Riedel
- Department of Applied and Molecular Microbiology, Technische Universität Berlin, Seestr. 13, 13353, Berlin, Germany
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49
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Chen X, Zhou L, Tian K, Kumar A, Singh S, Prior BA, Wang Z. Metabolic engineering of Escherichia coli: A sustainable industrial platform for bio-based chemical production. Biotechnol Adv 2013; 31:1200-23. [DOI: 10.1016/j.biotechadv.2013.02.009] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 02/04/2013] [Accepted: 02/25/2013] [Indexed: 12/20/2022]
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50
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Molecular architecture and solid-state properties of novel biocompatible PBS-based copolyesters containing sulphur atoms. REACT FUNCT POLYM 2012. [DOI: 10.1016/j.reactfunctpolym.2012.08.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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