1
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Wang BP, Yin X, Huang MY, Li TY, Long XF, Li Y, Niu FX. A Self-Assembling γPFD-SpyCatcher Hydrogel Scaffold for the Coimmobilization of SpyTag-Enzymes to Facilitate the Catalysis of Regulated Enzymes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:19940-19947. [PMID: 39194331 DOI: 10.1021/acs.jafc.4c03403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
In this study, a γPFD-SpyCatcher hydrogel scaffold with the capacity for spontaneous assembly was established. With a maximum loading capacity of a 1:1 molar ratio with SpyTag-enzymes, the immobilized proteins can not only rapidly provide pure enzymes but also exhibit improved thermal and pH stability. The results of the transmission electron microscopic analysis and the traits they present indicated that SpyCatcher promotes the aggregation of γPFD and the formation of hydrogels. In the cell-free pyruvate synthesis system, the γPFD-SpyCatcher coimmobilized SpyTag-hexokinase (HK), SpyTag-phosphofructokinase (PFK) and SpyTag-pyruvate kinase (PK) were employed, and the production of pyruvate increased by 43, 78 and 47% respectively. In in vitro experiments, the oxidative deamination activity of glutamate dehydrogenase (GDH) coimmobilized with γPFD-SpyCatcher was 38% higher than that of purified enzymes. These findings indicate that the γPFD-SpyCatcher-based hydrogels play an important role in breaking the barrier of regulatory enzymes and will provide more strategies for the development of synthetic biology.
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Affiliation(s)
- Bei-Ping Wang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Xue Yin
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Ming-Yue Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Tian-Yan Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Xiu-Feng Long
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Ya Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Fu-Xing Niu
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou 545006, China
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2
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Wang H, Vant JW, Zhang A, Sanchez RG, Wu Y, Micou ML, Luczak V, Whiddon Z, Carlson NM, Yu SB, Jabbo M, Yoon S, Abushawish AA, Ghassemian M, Masubuchi T, Gan Q, Watanabe S, Griffis ER, Hammarlund M, Singharoy A, Pekkurnaz G. Organization of a functional glycolytic metabolon on mitochondria for metabolic efficiency. Nat Metab 2024; 6:1712-1735. [PMID: 39261628 DOI: 10.1038/s42255-024-01121-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 08/02/2024] [Indexed: 09/13/2024]
Abstract
Glucose, the primary cellular energy source, is metabolized through glycolysis initiated by the rate-limiting enzyme hexokinase (HK). In energy-demanding tissues like the brain, HK1 is the dominant isoform, primarily localized on mitochondria, and is crucial for efficient glycolysis-oxidative phosphorylation coupling and optimal energy generation. This study unveils a unique mechanism regulating HK1 activity, glycolysis and the dynamics of mitochondrial coupling, mediated by the metabolic sensor enzyme O-GlcNAc transferase (OGT). OGT catalyses reversible O-GlcNAcylation, a post-translational modification influenced by glucose flux. Elevated OGT activity induces dynamic O-GlcNAcylation of the regulatory domain of HK1, subsequently promoting the assembly of the glycolytic metabolon on the outer mitochondrial membrane. This modification enhances the mitochondrial association with HK1, orchestrating glycolytic and mitochondrial ATP production. Mutation in HK1's O-GlcNAcylation site reduces ATP generation in multiple cell types, specifically affecting metabolic efficiency in neurons. This study reveals a previously unappreciated pathway that links neuronal metabolism and mitochondrial function through OGT and the formation of the glycolytic metabolon, providing potential strategies for tackling metabolic and neurological disorders.
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Affiliation(s)
- Haoming Wang
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - John W Vant
- Biodesign Institute, The School of Molecular Sciences, Arizona State University, Tempe, AZ, USA
| | - Andrew Zhang
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Richard G Sanchez
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Youjun Wu
- Department of Genetics and Department of Neuroscience, Yale University School of Medicine, New Haven, CT, USA
| | - Mary L Micou
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
- Thomas Jefferson University, Philadelphia, PA, USA
| | - Vincent Luczak
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
- Neurocrine Biosciences, San Diego, CA, USA
| | - Zachary Whiddon
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Natasha M Carlson
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Seungyoon B Yu
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
- Denali Therapeutics Inc., South San Francisco, CA, USA
| | - Mirna Jabbo
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Seokjun Yoon
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
- University of Southern California, Los Angeles, CA, USA
| | - Ahmed A Abushawish
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Majid Ghassemian
- Biomolecular and Proteomics Mass Spectrometry Facility, University of California San Diego, La Jolla, CA, USA
| | - Takeya Masubuchi
- Cell and Developmental Biology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Quan Gan
- Department of Cell Biology, Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, Baltimore, MD, USA
| | - Shigeki Watanabe
- Department of Cell Biology, Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, Baltimore, MD, USA
| | - Eric R Griffis
- Nikon Imaging Center, University of California San Diego, La Jolla, CA, USA
- Altos Labs, San Diego, CA, USA
| | - Marc Hammarlund
- Department of Genetics and Department of Neuroscience, Yale University School of Medicine, New Haven, CT, USA
| | - Abhishek Singharoy
- Biodesign Institute, The School of Molecular Sciences, Arizona State University, Tempe, AZ, USA
| | - Gulcin Pekkurnaz
- Neurobiology Department, School of Biological Sciences, University of California San Diego, La Jolla, CA, USA.
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3
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Promdonkoy P, Watcharawipas A, Bubphasawan S, Sansatchanon K, Suwanakitti N, Kocharin K, Runguphan W. Metabolic Engineering of Saccharomyces cerevisiae for Production of Canthaxanthin, Zeaxanthin, and Astaxanthin. J Fungi (Basel) 2024; 10:433. [PMID: 38921419 PMCID: PMC11205050 DOI: 10.3390/jof10060433] [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: 05/15/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/27/2024] Open
Abstract
The sustainable production of natural compounds is increasingly important in today's industrial landscape. This study investigates the metabolic engineering of Saccharomyces cerevisiae for the efficient biosynthesis of valuable carotenoids: canthaxanthin, zeaxanthin, and astaxanthin. Utilizing a tailored parental yeast strain, Sp_Bc, we optimized the carotenoid pathway by screening and identifying CrtW and CrtZ enzymatic variants. The CrtW variant from Bradyrhizobium sp. achieved a canthaxanthin titer of 425.1 ± 69.1 µg/L, while the CrtZ variant from Pantoea ananatis achieved a zeaxanthin titer of 70.5 ± 10.8 µg/L. Additionally, we optimized carotenoid production by exploring enzyme fusion strategies for all three studied carotenoids and organelle compartmentalization specifically for enhancing astaxanthin synthesis. We further improved carotenoid production by integrating the optimal gene constructs into the yeast genome and deleting the GAL80 gene, enabling the use of sucrose as a carbon source. The engineered strain Sp_Bc-Can001 ∆gal80 was evaluated in a 5 L bioreactor fermentation, achieving a notable canthaxanthin titer of 60.36 ± 1.51 mg/L using sucrose. This research conclusively establishes S. cerevisiae as a viable platform for efficient carotenoid biosynthesis and, for the first time in this yeast system, illustrates sucrose's viability as a carbon source for canthaxanthin production. These findings pave the way for sustainable, cost-effective carotenoid production at an industrial scale.
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Affiliation(s)
- Peerada Promdonkoy
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Paholyothin Road, Klong 1, Klong Luang, Pathum Thani 12120, Thailand; (P.P.); (S.B.); (K.S.); (N.S.); (K.K.)
| | - Akaraphol Watcharawipas
- Department of Microbiology, Faculty of Science, Mahidol University, 272 Rama VI Road, Ratchathewi, Bangkok 10400, Thailand;
| | - Suriyaporn Bubphasawan
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Paholyothin Road, Klong 1, Klong Luang, Pathum Thani 12120, Thailand; (P.P.); (S.B.); (K.S.); (N.S.); (K.K.)
| | - Kitisak Sansatchanon
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Paholyothin Road, Klong 1, Klong Luang, Pathum Thani 12120, Thailand; (P.P.); (S.B.); (K.S.); (N.S.); (K.K.)
| | - Nattida Suwanakitti
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Paholyothin Road, Klong 1, Klong Luang, Pathum Thani 12120, Thailand; (P.P.); (S.B.); (K.S.); (N.S.); (K.K.)
| | - Kanokarn Kocharin
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Paholyothin Road, Klong 1, Klong Luang, Pathum Thani 12120, Thailand; (P.P.); (S.B.); (K.S.); (N.S.); (K.K.)
| | - Weerawat Runguphan
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Paholyothin Road, Klong 1, Klong Luang, Pathum Thani 12120, Thailand; (P.P.); (S.B.); (K.S.); (N.S.); (K.K.)
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4
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Manko H, Steffan T, Gasser V, Mély Y, Schalk I, Godet J. PvdL Orchestrates the Assembly of the Nonribosomal Peptide Synthetases Involved in Pyoverdine Biosynthesis in Pseudomonas aeruginosa. Int J Mol Sci 2024; 25:6013. [PMID: 38892200 PMCID: PMC11172790 DOI: 10.3390/ijms25116013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
The pyoverdine siderophore is produced by Pseudomonas aeruginosa to access iron. Its synthesis involves the complex coordination of four nonribosomal peptide synthetases (NRPSs), which are responsible for assembling the pyoverdine peptide backbone. The precise cellular organization of these NRPSs and their mechanisms of interaction remain unclear. Here, we used a combination of several single-molecule microscopy techniques to elucidate the spatial arrangement of NRPSs within pyoverdine-producing cells. Our findings reveal that PvdL differs from the three other NRPSs in terms of localization and mobility patterns. PvdL is predominantly located in the inner membrane, while the others also explore the cytoplasmic compartment. Leveraging the power of multicolor single-molecule localization, we further reveal co-localization between PvdL and the other NRPSs, suggesting a pivotal role for PvdL in orchestrating the intricate biosynthetic pathway. Our observations strongly indicates that PvdL serves as a central orchestrator in the assembly of NRPSs involved in pyoverdine biosynthesis, assuming a critical regulatory function.
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Affiliation(s)
- Hanna Manko
- Laboratoire de BioImagerie et Pathologies, UMR CNRS 7021, ITI InnoVec, Université de Strasbourg, 67401 Illkirch, France
| | - Tania Steffan
- Laboratoire de BioImagerie et Pathologies, UMR CNRS 7021, ITI InnoVec, Université de Strasbourg, 67401 Illkirch, France
| | | | - Yves Mély
- Laboratoire de BioImagerie et Pathologies, UMR CNRS 7021, ITI InnoVec, Université de Strasbourg, 67401 Illkirch, France
- Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France
| | | | - Julien Godet
- Faculté de Pharmacie, Université de Strasbourg, 67401 Illkirch, France
- Groupe Méthodes Recherche Clinique, Hôpitaux Universitaires de Strasbourg, 67000 Strasbourg, France
- Laboratoire iCube, UMR CNRS 7357, Equipe IMAGeS, Université de Strasbourg, 67000 Strasbourg, France
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5
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Lim S, Clark DS. Phase-separated biomolecular condensates for biocatalysis. Trends Biotechnol 2024; 42:496-509. [PMID: 37925283 DOI: 10.1016/j.tibtech.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 11/06/2023]
Abstract
Nature often uses dynamically assembling multienzymatic complexes called metabolons to achieve spatiotemporal control of complex metabolic reactions. Researchers are aiming to mimic this strategy of organizing enzymes to enhance the performance of artificial biocatalytic systems. Biomolecular condensates formed through liquid-liquid phase separation (LLPS) can serve as a powerful tool to drive controlled assembly of enzymes. Diverse enzymatic pathways have been reconstituted within catalytic condensates in vitro as well as synthetic membraneless organelles in living cells. Furthermore, in vivo condensates have been engineered to regulate metabolic pathways by selectively sequestering enzymes. Thus, harnessing LLPS for controlled organization of enzymes provides an opportunity to dynamically regulate biocatalytic processes.
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Affiliation(s)
- Samuel Lim
- Department of Systems Biology, Harvard Medical School, Boston, MA, 02115, USA
| | - Douglas S Clark
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA; Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA..
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6
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Luo M, Zhang M, Chi C, Chen G. Affinity-assisted covalent self-assembly of PduQ-SpyTag and Nox-SpyCatcher to construct multi-enzyme complexes on the surface of magnetic microsphere modified with chelated Ni 2. Int J Biol Macromol 2024; 261:129365. [PMID: 38218263 DOI: 10.1016/j.ijbiomac.2024.129365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/06/2023] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
It is of great significance to study the effect of multi-enzyme aggregation behavior at the interface on the formation of multi-enzyme complexes and their co-catalytic characteristics, which is helpful for us to design and construct immobilized multi-enzyme complex systems for in vitro synthetic biology. Here, a magnetic microsphere with chelated Ni2+, was prepared to explore the self-assembly characteristics of PduQ-SpyTag (P-T) and Nox-SpyCatcher (NC) on its surface, based on the mixed interaction mode consisting the affinity of His-tag/Ni2+ and covalent binding of SpyTag/SpyCatcher. After studying the effect of saturated or unsaturated adsorption of P-T on the covalent binding between P-T and NC at the interface, a possible multienzyme interaction mechanism for the affinity-assisted covalent self-assembly on the Ni2+ chelating surface was proposed. The time evolution of NADH showed that the immobilized P-T/N-C complex formed by this method and the free P-T/N-C complex exhibited similar synergistic catalytic properties, and presented higher catalytic efficiency than the simple mixing of P-T and NC. The optimal catalytic conditions, stability and reusability of the immobilized multi-enzyme complexes prepared in this study were also discussed by comparing them with free enzymes. In this study, we demonstrate a simple and effective strategy for self-assembling SpyTag/SpyCatcher fusion proteins on the surface of magnetic beads, which is inspiring for the construction of more cascade enzyme systems at the interface. It provides a new method for facilitating the rapid construction of immobilized multi-enzyme complexes in vitro from the crude cell lysis.
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Affiliation(s)
- Mianxing Luo
- Department of Bioengineering and Biotechnology, Huaqiao University, Jimei Ave. 668, Xiamen 361021, China
| | - Meng Zhang
- Department of Bioengineering and Biotechnology, Huaqiao University, Jimei Ave. 668, Xiamen 361021, China
| | - Changbiao Chi
- Department of Bioengineering and Biotechnology, Huaqiao University, Jimei Ave. 668, Xiamen 361021, China
| | - Guo Chen
- Department of Bioengineering and Biotechnology, Huaqiao University, Jimei Ave. 668, Xiamen 361021, China.
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7
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Cheah LC, Sainsbury F, Vickers CE. Translational fusion of terpene synthases for metabolic engineering: Lessons learned and practical considerations. Methods Enzymol 2024; 699:121-161. [PMID: 38942501 DOI: 10.1016/bs.mie.2024.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2024]
Abstract
The step catalyzed by terpene synthases is a well-recognized and significant bottleneck in engineered terpenoid bioproduction. Consequently, substantial efforts have been devoted towards increasing metabolic flux catalyzed by terpene synthases, employing strategies such as gene overexpression and protein engineering. Notably, numerous studies have demonstrated remarkable titer improvements by applying translational fusion, typically by fusing the terpene synthase with a prenyl diphosphate synthase that catalyzes the preceding step in the pathway. The main appeal of the translational fusion approach lies in its simplicity and orthogonality to other metabolic engineering tools. However, there is currently limited understanding of the underlying mechanism of flux enhancement, owing to the unpredictable and often protein-specific effects of translational fusion. In this chapter, we discuss practical considerations when engineering translationally fused terpene synthases, drawing insights from our experience and existing literature. We also provide detailed experimental workflows and protocols based on our previous work in budding yeast (Saccharomyces cerevisiae). Our intention is to encourage further research into the translational fusion of terpene synthases, anticipating that this will contribute mechanistic insights not only into the activity, behavior, and regulation of terpene synthases, but also of other enzymes.
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Affiliation(s)
- Li Chen Cheah
- Australian Centre for Disease Preparedness, East Geelong, VIC, Australia.
| | - Frank Sainsbury
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD, Australia
| | - Claudia E Vickers
- ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD, Australia; School of Biological and Environmental Science, Queensland University of Technology, Brisbane, QLD, Australia; BioBuilt Solutions, Brisbane, QLD, Australia
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8
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Liu N, Dong W, Yang H, Li JH, Chiu TY. Application of artificial scaffold systems in microbial metabolic engineering. Front Bioeng Biotechnol 2023; 11:1328141. [PMID: 38188488 PMCID: PMC10771841 DOI: 10.3389/fbioe.2023.1328141] [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: 10/26/2023] [Accepted: 12/12/2023] [Indexed: 01/09/2024] Open
Abstract
In nature, metabolic pathways are often organized into complex structures such as multienzyme complexes, enzyme molecular scaffolds, or reaction microcompartments. These structures help facilitate multi-step metabolic reactions. However, engineered metabolic pathways in microbial cell factories do not possess inherent metabolic regulatory mechanisms, which can result in metabolic imbalance. Taking inspiration from nature, scientists have successfully developed synthetic scaffolds to enhance the performance of engineered metabolic pathways in microbial cell factories. By recruiting enzymes, synthetic scaffolds facilitate the formation of multi-enzyme complexes, leading to the modulation of enzyme spatial distribution, increased enzyme activity, and a reduction in the loss of intermediate products and the toxicity associated with harmful intermediates within cells. In recent years, scaffolds based on proteins, nucleic acids, and various organelles have been developed and employed to facilitate multiple metabolic pathways. Despite varying degrees of success, synthetic scaffolds still encounter numerous challenges. The objective of this review is to provide a comprehensive introduction to these synthetic scaffolds and discuss their latest research advancements and challenges.
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Affiliation(s)
- Nana Liu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
- HIM-BGI Omics Center, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences (CAS), Hangzhou, China
| | - Wei Dong
- HIM-BGI Omics Center, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences (CAS), Hangzhou, China
| | - Huanming Yang
- HIM-BGI Omics Center, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences (CAS), Hangzhou, China
| | - Jing-Hua Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Tsan-Yu Chiu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
- HIM-BGI Omics Center, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences (CAS), Hangzhou, China
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9
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Alexander LT, Durairaj J, Kryshtafovych A, Abriata LA, Bayo Y, Bhabha G, Breyton C, Caulton SG, Chen J, Degroux S, Ekiert DC, Erlandsen BS, Freddolino PL, Gilzer D, Greening C, Grimes JM, Grinter R, Gurusaran M, Hartmann MD, Hitchman CJ, Keown JR, Kropp A, Kursula P, Lovering AL, Lemaitre B, Lia A, Liu S, Logotheti M, Lu S, Markússon S, Miller MD, Minasov G, Niemann HH, Opazo F, Phillips GN, Davies OR, Rommelaere S, Rosas‐Lemus M, Roversi P, Satchell K, Smith N, Wilson MA, Wu K, Xia X, Xiao H, Zhang W, Zhou ZH, Fidelis K, Topf M, Moult J, Schwede T. Protein target highlights in CASP15: Analysis of models by structure providers. Proteins 2023; 91:1571-1599. [PMID: 37493353 PMCID: PMC10792529 DOI: 10.1002/prot.26545] [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: 06/12/2023] [Accepted: 06/15/2023] [Indexed: 07/27/2023]
Abstract
We present an in-depth analysis of selected CASP15 targets, focusing on their biological and functional significance. The authors of the structures identify and discuss key protein features and evaluate how effectively these aspects were captured in the submitted predictions. While the overall ability to predict three-dimensional protein structures continues to impress, reproducing uncommon features not previously observed in experimental structures is still a challenge. Furthermore, instances with conformational flexibility and large multimeric complexes highlight the need for novel scoring strategies to better emphasize biologically relevant structural regions. Looking ahead, closer integration of computational and experimental techniques will play a key role in determining the next challenges to be unraveled in the field of structural molecular biology.
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Affiliation(s)
- Leila T. Alexander
- BiozentrumUniversity of BaselBaselSwitzerland
- Computational Structural BiologySIB Swiss Institute of BioinformaticsBaselSwitzerland
| | - Janani Durairaj
- BiozentrumUniversity of BaselBaselSwitzerland
- Computational Structural BiologySIB Swiss Institute of BioinformaticsBaselSwitzerland
| | | | - Luciano A. Abriata
- School of Life SciencesÉcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Yusupha Bayo
- Department of BiosciencesUniversity of MilanoMilanItaly
- IBBA‐CNR Unit of MilanoInstitute of Agricultural Biology and BiotechnologyMilanItaly
| | - Gira Bhabha
- Department of Cell BiologyNew York University School of MedicineNew YorkNew YorkUSA
| | | | | | - James Chen
- Department of Cell BiologyNew York University School of MedicineNew YorkNew YorkUSA
| | | | - Damian C. Ekiert
- Department of Cell BiologyNew York University School of MedicineNew YorkNew YorkUSA
- Department of MicrobiologyNew York University School of MedicineNew YorkNew YorkUSA
| | - Benedikte S. Erlandsen
- Wellcome Centre for Cell BiologyInstitute of Cell Biology, University of EdinburghEdinburghUK
| | - Peter L. Freddolino
- Department of Biological Chemistry, Computational Medicine and BioinformaticsUniversity of MichiganAnn ArborMichiganUSA
| | - Dominic Gilzer
- Department of ChemistryBielefeld UniversityBielefeldGermany
| | - Chris Greening
- Department of Microbiology, Biomedicine Discovery InstituteMonash UniversityClaytonVictoriaAustralia
- Securing Antarctica's Environmental FutureMonash UniversityClaytonVictoriaAustralia
- Centre to Impact AMRMonash UniversityClaytonVictoriaAustralia
- ARC Research Hub for Carbon Utilisation and RecyclingMonash UniversityClaytonVictoriaAustralia
| | - Jonathan M. Grimes
- Division of Structural Biology, Wellcome Centre for Human GeneticsUniversity of OxfordOxfordUK
| | - Rhys Grinter
- Department of Microbiology, Biomedicine Discovery InstituteMonash UniversityClaytonVictoriaAustralia
- Centre for Electron Microscopy of Membrane ProteinsMonash Institute of Pharmaceutical SciencesParkvilleVictoriaAustralia
| | - Manickam Gurusaran
- Wellcome Centre for Cell BiologyInstitute of Cell Biology, University of EdinburghEdinburghUK
| | - Marcus D. Hartmann
- Max Planck Institute for BiologyTübingenGermany
- Interfaculty Institute of Biochemistry, University of TübingenTübingenGermany
| | - Charlie J. Hitchman
- Department of Molecular and Cell Biology, Leicester Institute of Structural and Chemical BiologyUniversity of LeicesterLeicesterUK
| | - Jeremy R. Keown
- Division of Structural Biology, Wellcome Centre for Human GeneticsUniversity of OxfordOxfordUK
| | - Ashleigh Kropp
- Department of Microbiology, Biomedicine Discovery InstituteMonash UniversityClaytonVictoriaAustralia
| | - Petri Kursula
- Department of BiomedicineUniversity of BergenBergenNorway
- Faculty of Biochemistry and Molecular Medicine & Biocenter OuluUniversity of OuluOuluFinland
| | | | - Bruno Lemaitre
- School of Life SciencesÉcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Andrea Lia
- Department of Molecular and Cell Biology, Leicester Institute of Structural and Chemical BiologyUniversity of LeicesterLeicesterUK
- ISPA‐CNR Unit of LecceInstitute of Sciences of Food ProductionLecceItaly
| | - Shiheng Liu
- Department of Microbiology, Immunology, and Molecular GeneticsUniversity of CaliforniaLos AngelesCaliforniaUSA
- California NanoSystems InstituteUniversity of CaliforniaLos AngelesCaliforniaUSA
| | - Maria Logotheti
- Max Planck Institute for BiologyTübingenGermany
- Interfaculty Institute of Biochemistry, University of TübingenTübingenGermany
- Present address:
Institute of BiochemistryUniversity of GreifswaldGreifswaldGermany
| | - Shuze Lu
- Lanzhou University School of Life SciencesLanzhouChina
| | | | | | - George Minasov
- Department of Microbiology‐ImmunologyNorthwestern Feinberg School of MedicineChicagoIllinoisUSA
| | | | - Felipe Opazo
- NanoTag Biotechnologies GmbHGöttingenGermany
- Institute of Neuro‐ and Sensory PhysiologyUniversity of Göttingen Medical CenterGöttingenGermany
- Center for Biostructural Imaging of Neurodegeneration (BIN)University of Göttingen Medical CenterGöttingenGermany
| | - George N. Phillips
- Department of BiosciencesRice UniversityHoustonTexasUSA
- Department of ChemistryRice UniversityHoustonTexasUSA
| | - Owen R. Davies
- Wellcome Centre for Cell BiologyInstitute of Cell Biology, University of EdinburghEdinburghUK
| | - Samuel Rommelaere
- School of Life SciencesÉcole Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Monica Rosas‐Lemus
- Department of Microbiology‐ImmunologyNorthwestern Feinberg School of MedicineChicagoIllinoisUSA
- Present address:
Department of Molecular Genetics and MicrobiologyUniversity of New MexicoAlbuquerqueNew MexicoUSA
| | - Pietro Roversi
- IBBA‐CNR Unit of MilanoInstitute of Agricultural Biology and BiotechnologyMilanItaly
- Department of Molecular and Cell Biology, Leicester Institute of Structural and Chemical BiologyUniversity of LeicesterLeicesterUK
| | - Karla Satchell
- Department of Microbiology‐ImmunologyNorthwestern Feinberg School of MedicineChicagoIllinoisUSA
| | - Nathan Smith
- Department of Biochemistry and the Redox Biology CenterUniversity of NebraskaLincolnNebraskaUSA
| | - Mark A. Wilson
- Department of Biochemistry and the Redox Biology CenterUniversity of NebraskaLincolnNebraskaUSA
| | - Kuan‐Lin Wu
- Department of ChemistryRice UniversityHoustonTexasUSA
| | - Xian Xia
- Department of Microbiology, Immunology, and Molecular GeneticsUniversity of CaliforniaLos AngelesCaliforniaUSA
- California NanoSystems InstituteUniversity of CaliforniaLos AngelesCaliforniaUSA
| | - Han Xiao
- Department of BiosciencesRice UniversityHoustonTexasUSA
- Department of ChemistryRice UniversityHoustonTexasUSA
- Department of BioengineeringRice UniversityHoustonTexasUSA
| | - Wenhua Zhang
- Lanzhou University School of Life SciencesLanzhouChina
| | - Z. Hong Zhou
- Department of Microbiology, Immunology, and Molecular GeneticsUniversity of CaliforniaLos AngelesCaliforniaUSA
- California NanoSystems InstituteUniversity of CaliforniaLos AngelesCaliforniaUSA
| | | | - Maya Topf
- University Medical Center Hamburg‐Eppendorf (UKE)HamburgGermany
- Centre for Structural Systems BiologyLeibniz‐Institut für Virologie (LIV)HamburgGermany
| | - John Moult
- Department of Cell Biology and Molecular Genetics, Institute for Bioscience and Biotechnology ResearchUniversity of MarylandRockvilleMarylandUSA
| | - Torsten Schwede
- BiozentrumUniversity of BaselBaselSwitzerland
- Computational Structural BiologySIB Swiss Institute of BioinformaticsBaselSwitzerland
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10
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Tanwar N, Arya SS, Rookes JE, Cahill DM, Lenka SK, Bansal KC. Prospects of chloroplast metabolic engineering for developing nutrient-dense food crops. Crit Rev Biotechnol 2023; 43:1001-1018. [PMID: 35815847 DOI: 10.1080/07388551.2022.2092717] [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: 01/31/2022] [Accepted: 05/29/2022] [Indexed: 11/03/2022]
Abstract
Addressing nutritional deficiencies in food crops through biofortification is a sustainable approach to tackling malnutrition. Biofortification is continuously being attempted through conventional breeding as well as through various plant biotechnological interventions, ranging from molecular breeding to genetic engineering and genome editing for enriching crops with various health-promoting metabolites. Genetic engineering is used for the rational incorporation of desired nutritional traits in food crops and predominantly operates through nuclear and chloroplast genome engineering. In the recent past, chloroplast engineering has been deployed as a strategic tool to develop model plants with enhanced nutritional traits due to the various advantages it offers over nuclear genome engineering. However, this approach needs to be extended for the nutritional enhancement of major food crops. Further, this platform could be combined with strategies, such as synthetic biology, chloroplast editing, nanoparticle-mediated rapid chloroplast transformation, and horizontal gene transfer through grafting for targeting endogenous metabolic pathways for overproducing native nutraceuticals, production of biopharmaceuticals, and biosynthesis of designer nutritional compounds. This review focuses on exploring various features of chloroplast genome engineering for nutritional enhancement of food crops by enhancing the levels of existing metabolites, restoring the metabolites lost during crop domestication, and introducing novel metabolites and phytonutrients needed for a healthy daily diet.
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Affiliation(s)
- Neha Tanwar
- TERI-Deakin Nano-Biotechnology Centre, The Energy Resources Institute (TERI), New Delhi, India
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds Campus, Geelong, Australia
| | - Sagar S Arya
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds Campus, Geelong, Australia
| | - James E Rookes
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds Campus, Geelong, Australia
| | - David M Cahill
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds Campus, Geelong, Australia
| | - Sangram K Lenka
- TERI-Deakin Nano-Biotechnology Centre, The Energy Resources Institute (TERI), New Delhi, India
- Gujarat Biotechnology University, Gujarat, India
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11
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Wang H, Vant J, Wu Y, Sanchez R, Micou ML, Zhang A, Luczak V, Yu SB, Jabbo M, Yoon S, Abushawish AA, Ghassemian M, Griffis E, Hammarlund M, Singharoy A, Pekkurnaz G. Functional Organization of Glycolytic Metabolon on Mitochondria. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.26.554955. [PMID: 37662343 PMCID: PMC10473731 DOI: 10.1101/2023.08.26.554955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Glucose, the primary cellular energy source, is metabolized through glycolysis initiated by the rate-limiting enzyme Hexokinase (HK). In energy-demanding tissues like the brain, HK1 is the dominant isoform, primarily localized on mitochondria, crucial for efficient glycolysis-oxidative phosphorylation coupling and optimal energy generation. This study unveils a unique mechanism regulating HK1 activity, glycolysis, and the dynamics of mitochondrial coupling, mediated by the metabolic sensor enzyme O-GlcNAc transferase (OGT). OGT catalyzes reversible O-GlcNAcylation, a post-translational modification, influenced by glucose flux. Elevated OGT activity induces dynamic O-GlcNAcylation of HK1's regulatory domain, subsequently promoting the assembly of the glycolytic metabolon on the outer mitochondrial membrane. This modification enhances HK1's mitochondrial association, orchestrating glycolytic and mitochondrial ATP production. Mutations in HK1's O-GlcNAcylation site reduce ATP generation, affecting synaptic functions in neurons. The study uncovers a novel pathway that bridges neuronal metabolism and mitochondrial function via OGT and the formation of the glycolytic metabolon, offering new prospects for tackling metabolic and neurological disorders.
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12
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Dahmani I, Qin K, Zhang Y, Fernie AR. The formation and function of plant metabolons. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 114:1080-1092. [PMID: 36906885 DOI: 10.1111/tpj.16179] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/26/2023] [Accepted: 03/06/2023] [Indexed: 05/31/2023]
Abstract
Metabolons are temporary structural-functional complexes of sequential enzymes of a metabolic pathway that are distinct from stable multi-enzyme complexes. Here we provide a brief history of the study of enzyme-enzyme assemblies with a particular focus on those that mediate substrate channeling in plants. Large numbers of protein complexes have been proposed for both primary and secondary metabolic pathways in plants. However, to date only four substrate channels have been demonstrated. We provide an overview of current knowledge concerning these four metabolons and explain the methodologies that are currently being applied to unravel their functions. Although the assembly of metabolons has been documented to arise through diverse mechanisms, the physical interaction within the characterized plant metabolons all appear to be driven by interaction with structural elements of the cell. We therefore pose the question as to what methodologies could be brought to bear to enhance our knowledge of plant metabolons that assemble via different mechanisms? In addressing this question, we review recent findings in non-plant systems concerning liquid droplet phase separation and enzyme chemotaxis and propose strategies via which such metabolons could be identified in plants. We additionally discuss the possibilities that could be opened up by novel approaches based on: (i) subcellular-level mass spectral imaging, (ii) proteomics, and (iii) emergent methods in structural and computational biology.
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Affiliation(s)
- Ismail Dahmani
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Kezhen Qin
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Youjun Zhang
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
- Center of Plant System Biology and Biotechnology, 4000, Plovdiv, Bulgaria
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
- Center of Plant System Biology and Biotechnology, 4000, Plovdiv, Bulgaria
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13
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Cui Z, Zheng M, Ding M, Dai W, Wang Z, Chen T. Efficient production of acetoin from lactate by engineered Escherichia coli whole-cell biocatalyst. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12560-x. [PMID: 37178309 DOI: 10.1007/s00253-023-12560-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
Acetoin, an important and high-value added bio-based platform chemical, has been widely applied in fields of foods, cosmetics, chemical synthesis, and agriculture. Lactate is a significant intermediate short-chain carboxylate in the anaerobic breakdown of carbohydrates that comprise ~ 18% and ~ 70% in municipal wastewaters and some food processing wastewaters, respectively. In this work, a series of engineered Escherichia coli strains were constructed for efficient production of acetoin from cheaper and abundant lactate through heterogenous co-expression of fusion protein (α-acetolactate synthetase and α-acetolactate decarboxylase), lactate dehydrogenase and NADH oxidase, and blocking acetate synthesis pathways. After optimization of whole-cell bioconversion conditions, the engineered strain BL-11 produced 251.97 mM (22.20 g/L) acetoin with a yield of 0.434 mol/mol in shake flasks. Moreover, a titer of 648.97mM (57.18 g/L) acetoin was obtained in 30 h with a yield of 0.484 mol/mol lactic acid in a 1-L bioreactor. To the best of our knowledge, this is the first report on the production of acetoin from renewable lactate through whole-cell bioconversion with both high titer and yield, which demonstrates the economy and efficiency of acetoin production from lactate. Key Points • The lactate dehydrogenases from different organisms were expressed, purified, and assayed. • It is the first time that acetoin was produced from lactate by whole-cell biocatalysis. • The highest titer of 57.18 g/L acetoin was obtained with high theoretical yield in a 1-L bioreactor.
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Affiliation(s)
- Zhenzhen Cui
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Meiyu Zheng
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Mengnan Ding
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Wei Dai
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Zhiwen Wang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Tao Chen
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.
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14
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McNeale D, Esquirol L, Okada S, Strampel S, Dashti N, Rehm B, Douglas T, Vickers C, Sainsbury F. Tunable In Vivo Colocalization of Enzymes within P22 Capsid-Based Nanoreactors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17705-17715. [PMID: 36995754 DOI: 10.1021/acsami.3c00971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Virus-like particles (VLPs) derived from bacteriophage P22 have been explored as biomimetic catalytic compartments. In vivo colocalization of enzymes within P22 VLPs uses sequential fusion to the scaffold protein, resulting in equimolar concentrations of enzyme monomers. However, control over enzyme stoichiometry, which has been shown to influence pathway flux, is key to realizing the full potential of P22 VLPs as artificial metabolons. We present a tunable strategy for stoichiometric control over in vivo co-encapsulation of P22 cargo proteins, verified for fluorescent protein cargo by Förster resonance energy transfer. This was then applied to a two-enzyme reaction cascade. l-homoalanine, an unnatural amino acid and chiral precursor to several drugs, can be synthesized from the readily available l-threonine by the sequential activity of threonine dehydratase and glutamate dehydrogenase. We found that the loading density of both enzymes influences their activity, with higher activity found at lower loading density implying an impact of molecular crowding on enzyme activity. Conversely, increasing overall loading density by increasing the amount of threonine dehydratase can increase activity from the rate-limiting glutamate dehydrogenase. This work demonstrates the in vivo colocalization of multiple heterologous cargo proteins in a P22-based nanoreactor and shows that controlled stoichiometry of individual enzymes in an enzymatic cascade is required for the optimal design of nanoscale biocatalytic compartments.
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Affiliation(s)
- Donna McNeale
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, QLD 4111, Australia
- CSIRO Future Science Platform in Synthetic Biology, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Dutton Park, QLD 4102, Australia
| | - Lygie Esquirol
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, QLD 4111, Australia
- CSIRO Land and Water, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Black Mountain, ACT 2601, Australia
| | - Shoko Okada
- CSIRO Land and Water, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Black Mountain, ACT 2601, Australia
| | - Shai Strampel
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, QLD 4111, Australia
| | - Noor Dashti
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, QLD 4111, Australia
| | - Bernd Rehm
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, QLD 4111, Australia
| | - Trevor Douglas
- Department of Chemistry, Indiana University, Indiana University, Bloomington, Indiana 47405, United States
| | - Claudia Vickers
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, QLD 4111, Australia
- CSIRO Future Science Platform in Synthetic Biology, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Dutton Park, QLD 4102, Australia
- ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD 4000, Australia
- School of Biological and Environmental Science, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Frank Sainsbury
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, QLD 4111, Australia
- CSIRO Future Science Platform in Synthetic Biology, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Dutton Park, QLD 4102, Australia
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15
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Liu M, Wang Y, Jiang H, Han Y, Xia J. Synthetic Multienzyme Assemblies for Natural Product Biosynthesis. Chembiochem 2023; 24:e202200518. [PMID: 36625563 DOI: 10.1002/cbic.202200518] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 01/10/2023] [Accepted: 01/10/2023] [Indexed: 01/11/2023]
Abstract
In nature, enzymes that catalyze sequential reactions are often assembled as clusters or complexes. The formation of multienzyme complexes, or metabolons, brings the enzyme active sites into proximity to promote intermediate transfer, decrease intermediate leakage, and streamline the metabolic flux towards the desired products. We and others have developed synthetic versions of metabolons through various strategies to enhance the catalytic rates for synthesizing valuable chemicals inside microbes. Synthetic multienzyme complexes range from static enzyme nanostructures to dynamic enzyme coacervates. Enzyme complexation optimizes the metabolic fluxes inside microbes, increases the product titer, and supplies the field with high-yield microbe strains that are amenable to large-scale fermentation. Enzyme complexes constructed inside microbial cells can be separated as independent entities and catalyze biosynthetic reactions ex vivo; such a feature gains these complexes another name, "synthetic organelles" - new subcellular entities with independent structures and functions. Still, the field is seeking new strategies to better balance dynamicity and confinement and to achieve finer control of local compartmentalization in the cells, as the natural multienzyme complexes do. Industrial applications of synthetic multienzyme complexes for the large-scale production of valuable chemicals are yet to be realized. This review focuses on synthetic multienzyme complexes that are constructed and function inside microbial cells.
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Affiliation(s)
- Min Liu
- Department of Chemistry and, Center for Cell & Developmental Biology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Yue Wang
- Department of Chemistry and, Center for Cell & Developmental Biology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Hao Jiang
- Department of Chemistry and, Center for Cell & Developmental Biology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Yongxu Han
- Department of Chemistry and, Center for Cell & Developmental Biology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Jiang Xia
- Department of Chemistry and, Center for Cell & Developmental Biology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
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16
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Cheah LC, Liu L, Stark T, Plan MR, Peng B, Lu Z, Schenk G, Sainsbury F, Vickers CE. Metabolic flux enhancement from the translational fusion of terpene synthases is linked to terpene synthase accumulation. Metab Eng 2023; 77:143-151. [PMID: 36990382 DOI: 10.1016/j.ymben.2023.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/13/2023] [Accepted: 03/26/2023] [Indexed: 03/30/2023]
Abstract
The end-to-end fusion of enzymes that catalyse successive steps in a reaction pathway is a metabolic engineering strategy that has been successfully applied in a variety of pathways and is particularly common in terpene bioproduction. Despite its popularity, limited work has been done to interrogate the mechanism of metabolic enhancement from enzyme fusion. We observed a remarkable >110-fold improvement in nerolidol production upon translational fusion of nerolidol synthase (a sesquiterpene synthase) to farnesyl diphosphate synthase. This delivered a titre increase from 29.6 mg/L up to 4.2 g/L nerolidol in a single engineering step. Whole-cell proteomic analysis revealed that nerolidol synthase levels in the fusion strains were greatly elevated compared to the non-fusion control. Similarly, the fusion of nerolidol synthase to non-catalytic domains also produced comparable increases in titre, which coincided with improved enzyme expression. When farnesyl diphosphate synthase was fused to other terpene synthases, we observed more modest improvements in terpene titre (1.9- and 3.8-fold), corresponding with increases of a similar magnitude in terpene synthase levels. Our data demonstrate that increased in vivo enzyme levels - resulting from improved expression and/or improved protein stability - is a major driver of catalytic enhancement from enzyme fusion.
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Affiliation(s)
- Li Chen Cheah
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia; CSIRO Future Science Platform in Synthetic Biology, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Dutton Park, QLD, 4102, Australia
| | - Lian Liu
- Metabolomics Australia (Queensland Node), The University of Queensland, QLD, 4072, Australia
| | - Terra Stark
- Metabolomics Australia (Queensland Node), The University of Queensland, QLD, 4072, Australia
| | - Manuel R Plan
- Metabolomics Australia (Queensland Node), The University of Queensland, QLD, 4072, Australia
| | - Bingyin Peng
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia; CSIRO Future Science Platform in Synthetic Biology, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Dutton Park, QLD, 4102, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD, 4000, Australia
| | - Zeyu Lu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD, 4000, Australia
| | - Gerhard Schenk
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia; School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Frank Sainsbury
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia; CSIRO Future Science Platform in Synthetic Biology, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Dutton Park, QLD, 4102, Australia; Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, 4111, Australia.
| | - Claudia E Vickers
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia; CSIRO Future Science Platform in Synthetic Biology, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Dutton Park, QLD, 4102, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD, 4000, Australia; School of Biological and Environmental Science, Queensland University of Technology, Brisbane, QLD, 4000, Australia; Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, 4111, Australia.
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17
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Chen R, Wan L, Zhu Y, Liu Y, Zhang W, Mu W. Spatial organization of pathway enzymes via self-assembly to improve 2'-fucosyllactose biosynthesis in engineered Escherichia coli. Biotechnol Bioeng 2023; 120:524-535. [PMID: 36326175 DOI: 10.1002/bit.28279] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 10/22/2022] [Accepted: 10/30/2022] [Indexed: 11/05/2022]
Abstract
As one of the most abundant components in human milk oligosaccharides, 2'-fucosyllactose (2'-FL) possesses versatile beneficial health effects. Although most studies focused on overexpressing or fine-tuning the expression of pathway enzymes and achieved a striking increase of 2'-FL production, directly facilitating the metabolic flux toward the key intermediate GDP-l-fucose seems to be ignored. Here, multienzyme complexes consisting of sequential pathway enzymes were constructed by using specific peptide interaction motifs in recombinant Escherichia coli to achieve a higher titer of 2'-FL. Specifically, we first fine-tuned the expression level of pathway enzymes and balanced the metabolic flux toward 2'-FL synthesis. Then, two key enzymes (GDP-mannose 4,6-dehydratase and GDP- l-fucose synthase) were self-assembled into enzyme complexes in vivo via a short peptide interaction pair RIAD-RIDD (RI anchoring disruptor-RI dimer D/D domains), resulting in noticeable improvement of 2'-FL production. Next, to further strengthen the metabolic flux toward 2'-FL, three pathway enzymes were further aggregated into multienzyme assemblies by using another orthogonal protein interaction motif (Spycatcher-SpyTag or PDZ-PDZlig). Intracellular multienzyme assemblies remarkably enlarged the flux toward 2'-FL biosynthesis and showed a 2.1-fold increase of 2'-FL production compared with a strain expressing free-floating and unassembled enzymes. The optimally engineered strain EZJ23 accumulated 4.8 g/L 2'-FL in shake flask fermentation and was capable of producing 25.1 g/L 2'-FL by fed-batch cultivation. This work provides novel approaches for further improvement and large-scale production of 2'-FL and demonstrates the effectiveness of spatial assembly of pathway enzymes to improve the production of valuable products in the engineered host strain.
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Affiliation(s)
- Roulin Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Li Wan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Yingying Zhu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Yuanlin Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
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18
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Cytochromes P450 in biosensing and biosynthesis applications: Recent progress and future perspectives. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2022.116791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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19
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Li M, Wen Q, Lv S, Yang R, Cheng T, Wang Z, Yang J. Co-biosynthesis of germacrene A, a precursor of β-elemene, and lycopene in engineered Escherichia coli. Appl Microbiol Biotechnol 2022; 106:8053-8066. [PMID: 36374331 DOI: 10.1007/s00253-022-12257-7] [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: 08/12/2022] [Revised: 10/17/2022] [Accepted: 10/23/2022] [Indexed: 11/16/2022]
Abstract
β-Elemene is the major component of a traditional Chinese medicine (Rhizoma Curcumae) for cancer treatment, and plant extraction is the major methods currently. Biosynthesis of β-elemene is a promising and attractive route due to its advantages, including environmentally friendly processes, renewable resources, and sustainable development. In this research, biosynthesis of germacrene A, direct precursor of β-elemene, in Escherichia coli was successfully performed and 11.99 mg/L germacrene A was obtained. Thereafter, a cobiosynthesis system for germacrene A and lycopene, another kind of isoprenoid, was constructed. Furthermore, the cultivation conditions were optimized. The germacrene A production was increased to the highest level reported to date, 364.26 mg/L, threefold increase to the strain with only germacrene A production. The cobiosynthesis system was suggested to promote the metabolic flux for germacrene A production. This research enabled germacrene A production in E. coli, and it highlights the promoting mechanism of the cobiosynthesis system for two chemicals which are both belonging to isoprenoids. KEY POINTS : • Co-production of germacrene A and lycopene in E. coli. • Promoting mechanism of cobiosynthesis of two isoprenoid compounds in E. coli. • Shake-flask production of germacrene A reached to the highest 364.26 mg/L in E. coli.
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Affiliation(s)
- Meijie Li
- Energy-Rich Compound Production By Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, No. 700 Changchen Road, Qingdao, 266109, People's Republic of China.,State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Qifeng Wen
- Energy-Rich Compound Production By Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, No. 700 Changchen Road, Qingdao, 266109, People's Republic of China
| | - Shuzhe Lv
- Energy-Rich Compound Production By Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, No. 700 Changchen Road, Qingdao, 266109, People's Republic of China
| | - Rumeng Yang
- Energy-Rich Compound Production By Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, No. 700 Changchen Road, Qingdao, 266109, People's Republic of China
| | - Tao Cheng
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 135 Songling Road, Qingdao, 266101, People's Republic of China
| | - Zhaobao Wang
- Energy-Rich Compound Production By Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, No. 700 Changchen Road, Qingdao, 266109, People's Republic of China.
| | - Jianming Yang
- Energy-Rich Compound Production By Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, No. 700 Changchen Road, Qingdao, 266109, People's Republic of China.
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20
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Wan L, Chen R, Zhu Y, Zhang W, Mu W. Interaction between the Anchoring Domain of A-Kinase Anchoring Proteins and the Dimerization and Docking Domain of Protein Kinase A: A Potent Tool for Synthetic Biology. ACS Synth Biol 2022; 11:3154-3162. [PMID: 36197832 DOI: 10.1021/acssynbio.2c00443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Nature is enriched with specific interactions between receptor proteins and their cognate ligands. These interacting pairs can be exploited and applied for the construction of well-ordered multicomponent assemblies with multivalency and multifunctionality. One of the research hotspots of this area is the formation of multienzyme complexes with stable and tunable architectures, which may bear the potential to facilitate cascade biocatalysis and/or strengthen metabolic fluxes. Here we focus on a special interacting pair, the anchoring domain (AD) derived from A-kinase anchoring protein and its interacting dimerization and docking domain (DDD) derived from cyclic AMP-dependent protein kinase, which has potential to be an effective and powerful synthetic biology tool for the construction of multienzyme assemblies. We review the origin and interaction mechanism of AD-DDD, followed by the application of this so-called dock-and-lock pair to form various bioconjugates with multivalency and multispecificity. Then several recent studies related to the construction of multienzyme complexes using AD-DDD, and more specifically, the RIAD-RIDD interacting pair, are presented. Finally, we also discuss the great biotechnology potential and perspectives of AD-DDD as a potent synthetic biology tool for post-translational modifications.
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Affiliation(s)
- Li Wan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Roulin Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yingying Zhu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China
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21
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Lee CH, Lee JH, Lee JY, Cui CH, Cho BK, Kim SC. Novel Split Intein-Mediated Enzymatic Channeling Accelerates the Multimeric Bioconversion Pathway of Ginsenoside. ACS Synth Biol 2022; 11:3296-3304. [PMID: 36150110 DOI: 10.1021/acssynbio.2c00216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Cascade reaction systems, such as protein fusion and synthetic protein scaffold systems, can both spatially control the metabolic flux and boost the productivity of multistep enzymatic reactions. Despite many efforts to generate fusion proteins, this task remains challenging due to the limited expression of complex enzymes. Therefore, we developed a novel fusion system that bypasses the limited expression of complex enzymes via a post-translational linkage. Here, we report a split intein-mediated cascade system wherein orthogonal split inteins serve as adapters for protein ligation. A genetically programmable, self-assembled, and traceless split intein was utilized to generate a biocatalytic cascade to produce the ginsenoside compound K (CK) with various pharmacological activities, including anticarcinogenic, anti-inflammatory, and antidiabetic effects. We used two types of split inteins, consensus atypical (Cat) and Rma DnaB, to form a covalent scaffold with the three enzymes involved in the CK conversion pathway. The multienzymatic complex with a size greater than 240 kDa was successfully assembled in a soluble form and exhibited specific activity toward ginsenoside conversion. Furthermore, our split intein cascade system significantly increased the CK conversion rate and reduced the production time by more than 2-fold. Our multienzymatic cascade system that uses split inteins can be utilized as a platform for regulating multimeric bioconversion pathways and boosting the production of various high-value substances.
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Affiliation(s)
- Cho-Heun Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Jun-Hyoung Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Ju Young Lee
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Korea
| | - Chang-Hao Cui
- Intelligent Synthetic Biology Center, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Byung-Kwan Cho
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Sun-Chang Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.,Intelligent Synthetic Biology Center, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
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22
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Zhang Y, Liu J, Hu G, Hu X, Yang J, Zhang H. Fusion enzyme design based on the "channelization" cascade theory and homogenous dextran product improvement. Int J Biol Macromol 2022; 222:652-660. [PMID: 36174857 DOI: 10.1016/j.ijbiomac.2022.09.222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/23/2022] [Accepted: 09/24/2022] [Indexed: 11/27/2022]
Abstract
Homogeneous low molecular weight dextran can be used to improve microcirculation and expand blood volume. However, the synthesis and separation of low molecular weight dextran are chemically difficult and environmentally unfriendly. Here, a one-step strategy for the synthesis of homogeneous low molecular weight dextran was developed. Dextransucrase and dextranase were fused by the addition of different length linker peptides. An artificial bifunctional enzyme was created to directly convert sucrose into low molecular weight dextran (13,050 Da), and the related substrate channel mechanism was found. The substrate channel adaptability was studied by changing the length of the linker and its corresponding product behavior. Compared with the mixture of two free enzymes, the residence lag time demonstrates the degree of substrate channelization of a series of fusion enzymes. And found that the highest channelization degree is not equal to produce homogenous dextran. Whereas a fusion enzyme with the appropriate linker (the one with the best substrate channel adaptation) will produce dextran with a homogeneous molecular weight. By studying the temperature dynamics of the fusion enzyme to adjust the two-stage catalytic efficiency of the fusion enzyme, we have increased the yield of low molecular weight homogeneous dextran (Yield of 62 %).
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Affiliation(s)
- Yuxin Zhang
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Jiali Liu
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Ganpeng Hu
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Xueqin Hu
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China.
| | - Jingwen Yang
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China.
| | - Hongbin Zhang
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China.
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23
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Metabolic Engineering of Saccharomyces cerevisiae for Production of Fragrant Terpenoids from Agarwood and Sandalwood. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8090429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Sandalwood and agarwood essential oils are rare natural oils comprising fragrant terpenoids that have been used in perfumes and incense for millennia. Increasing demand for these terpenoids, coupled with difficulties in isolating them from natural sources, have led to an interest in finding alternative production platforms. Here, we engineered the budding yeast Saccharomyces cerevisiae to produce fragrant terpenoids from sandalwood and agarwood. Specifically, we constructed strain FPPY005_39850, which overexpresses all eight genes in the mevalonate pathway. Using this engineered strain as the background strain, we screened seven distinct terpene synthases from agarwood, sandalwood, and related plant species for their activities in the context of yeast. Five terpene synthases led to the production of fragrant terpenoids, including α-santalene, α-humulene, δ-guaiene, α-guaiene, and β-eudesmol. To our knowledge, this is the first demonstration of β-eudesmol production in yeast. We further improved the production titers by downregulating ERG9, a key enzyme from a competing pathway, as well as employing enzyme fusions. Our final engineered strains produced fragrant terpenoids at up to 101.7 ± 6.9 mg/L. We envision our work will pave the way for a scalable route to these fragrant terpenoids and further establish S. cerevisiae as a versatile production platform for high-value chemicals.
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24
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Chen Y, Ming D, Zhu L, Huang H, Jiang L. Tailoring the Tag/Catcher System by Integrating Covalent Bonds and Noncovalent Interactions for Highly Efficient Protein Self-Assembly. Biomacromolecules 2022; 23:3936-3947. [PMID: 35998650 DOI: 10.1021/acs.biomac.2c00765] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Covalent bonds and noncovalent interactions play crucial roles in enzyme self-assembly. Here, we designed a Tag/Catcher system named NGTag/NGCatcher in which the Catcher is a highly charged protein that can bind proteins with positively charged tails and rapidly form a stable isopeptide bond with NGTag. In this study, we present a multienzyme strategy based on covalent bonds and noncovalent interactions. In vitro, mCherry, YFP, and GFP can form protein-rich three-dimensional networks based on NGCatcher, NGTag, and RK (Arginine/Lysine) tails, respectively. Furthermore, this technology was applied to improve lycopene production in Escherichia coli. Three key enzymes were involved in lycopene production variants from Deinococcus wulumuqiensis R12 of NGCatcher_CrtE, NGTag_Idi, and RKIspARK, where the multienzyme complexes were clearly observed in vivo and in vitro, and the lycopene production in vivo was 17.8-fold higher than that in the control group. The NGTag/NGCatcher system will provide new opportunities for in vivo and in vitro multienzyme catalysis.
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Affiliation(s)
- Yao Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China.,College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Dengming Ming
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Liying Zhu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - He Huang
- College of Pharmaceutical Science, Nanjing Tech University, Nanjing 211816, China.,School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China
| | - Ling Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
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25
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Hu R, Niu Z, Lu Y, Zhu H, Mao Z, Yan K, Hu X, Chen H. Immobilization for Lipase: Enhanced Activity and Stability by Flexible Combination and Solid Support. Appl Biochem Biotechnol 2022; 194:5963-5976. [DOI: 10.1007/s12010-022-04026-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2022] [Indexed: 11/02/2022]
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26
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Monterrey DT, Ayuso-Fernández I, Oroz-Guinea I, García-Junceda E. Design and biocatalytic applications of genetically fused multifunctional enzymes. Biotechnol Adv 2022; 60:108016. [PMID: 35781046 DOI: 10.1016/j.biotechadv.2022.108016] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/27/2022] [Accepted: 06/27/2022] [Indexed: 01/01/2023]
Abstract
Fusion proteins, understood as those created by joining two or more genes that originally encoded independent proteins, have numerous applications in biotechnology, from analytical methods to metabolic engineering. The use of fusion enzymes in biocatalysis may be even more interesting due to the physical connection of enzymes catalyzing successive reactions into covalently linked complexes. The proximity of the active sites of two enzymes in multi-enzyme complexes can make a significant contribution to the catalytic efficiency of the reaction. However, the physical proximity of the active sites does not guarantee this result. Other aspects, such as the nature and length of the linker used for the fusion or the order in which the enzymes are fused, must be considered and optimized to achieve the expected increase in catalytic efficiency. In this review, we will relate the new advances in the design, creation, and use of fused enzymes with those achieved in biocatalysis over the past 20 years. Thus, we will discuss some examples of genetically fused enzymes and their application in carbon‑carbon bond formation and oxidative reactions, generation of chiral amines, synthesis of carbohydrates, biodegradation of plant biomass and plastics, and in the preparation of other high-value products.
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Affiliation(s)
- Dianelis T Monterrey
- Departamento de Química Bioorgánica, Instituto de Química Orgánica General (IQOG), CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Iván Ayuso-Fernández
- Departamento de Química Bioorgánica, Instituto de Química Orgánica General (IQOG), CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Isabel Oroz-Guinea
- Departamento de Química Bioorgánica, Instituto de Química Orgánica General (IQOG), CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Eduardo García-Junceda
- Departamento de Química Bioorgánica, Instituto de Química Orgánica General (IQOG), CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
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27
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Dynamically regulating metabolic fluxes with synthetic metabolons. Trends Biotechnol 2022; 40:1019-1020. [PMID: 35753889 DOI: 10.1016/j.tibtech.2022.06.005] [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: 05/23/2022] [Revised: 06/11/2022] [Accepted: 06/14/2022] [Indexed: 11/23/2022]
Abstract
Enzyme-enzyme assemblies commonly occur naturally, yet the factors that lead to their transient nature are not fully understood. Mitkas et al. have shown how clustered regularly interspaced short palindromic repeats (CRISPR) enzymes and RNA scaffolds allow synthetic enzyme complexes to be formed and disassembled as needed, providing powerful new tools for metabolic engineering.
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28
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Huang Z, Sun L, Lu G, Liu H, Zhai Z, Feng S, Gao J, Chen C, Qing C, Fang M, Chen B, Fu J, Wang X, Chen G. Rapid regulations of metabolic reactions in
Escherichia coli
via light‐responsive enzyme redistribution. Biotechnol J 2022; 17:e2200129. [DOI: 10.1002/biot.202200129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/14/2022] [Accepted: 05/25/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Zikang Huang
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Lize Sun
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Genzhe Lu
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Hongrui Liu
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
- Johns Hopkins University School of Medicine Baltimore MD 21205 USA
| | - Zihan Zhai
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Site Feng
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Ji Gao
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Chunyu Chen
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Chuheng Qing
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Meng Fang
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Bowen Chen
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Jiale Fu
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
| | - Xuan Wang
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
- Center for Synthetic and Systems Biology Tsinghua University Beijing 100084 China
- Tsinghua‐Peking Center for Life Sciences Beijing 100084 China
| | - Guo‐Qiang Chen
- School of Life Sciences Tsinghua University Beijing 100084 China
- Tsinghua iGEM Team 2019 Beijing 100084 China
- Center for Synthetic and Systems Biology Tsinghua University Beijing 100084 China
- Tsinghua‐Peking Center for Life Sciences Beijing 100084 China
- MOE Key Lab of Industrial Biocatalysts Department of Chemical Engineering Tsinghua University Beijing 100084 China
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29
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Production of natural colorants by metabolically engineered microorganisms. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Dynamic modulation of enzyme activity by synthetic CRISPR–Cas6 endonucleases. Nat Chem Biol 2022; 18:492-500. [DOI: 10.1038/s41589-022-01005-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 02/25/2022] [Indexed: 11/08/2022]
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31
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High Yield Fermentation of L-serine in Recombinant Escherichia coli via Co-localization of SerB and EamA through Protein Scaffold. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-021-0081-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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32
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33
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Concentrically Encapsulated Dual-Enzyme Capsules for Synergistic Metabolic Disorder Redressing and Cytotoxic Intermediates Scavenging. NANOMATERIALS 2022; 12:nano12040625. [PMID: 35214953 PMCID: PMC8878113 DOI: 10.3390/nano12040625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/02/2022] [Accepted: 02/08/2022] [Indexed: 11/16/2022]
Abstract
Enzyme therapy has important implications for the treatment of metabolic disorders and biological detoxification. It remains challenging to prepare enzymatic nanoreactors with high therapeutic efficiency and low emission of cytotoxic reaction intermediates. Here, we propose a novel strategy for the preparation of enzymes-loaded polypeptide microcapsules (EPM) with concentrically encapsulated enzymes to achieve higher cascade reaction rates and minimal emission of cytotoxic intermediates. Mesoporous silica spheres (MSS) are used as a highly porous matrix to efficiently load a therapeutic enzyme (glucose oxidase, GOx), and a layer-by-layer (LbL) assembly strategy is employed to assemble the scavenging enzyme (catalase) and polyelectrolyte multilayers on the MSS surface. After removal of the MSS, a concentrically encapsulated EPM is obtained with the therapeutic enzyme encapsulated inside the capsule, and the scavenging enzyme immobilized in the polypeptide multilayer shell. Performance of the concentrically encapsulated GOx-catalase capsules is investigated for synergistic glucose metabolism disturbance correction and cytotoxic intermediate H2O2 clearance. The results show that the EPM can simultaneously achieve 99% H2O2 clearance and doubled glucose consumption rate. This strategy can be extended to the preparation of other dual- or multi-enzyme therapeutic nanoreactors, showing great promise in the treatment of metabolic disorders.
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34
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Wei Q, Xia J. Self-Assembled Multienzyme Nanostructures for Biocatalysis in Cellulo. Methods Mol Biol 2022; 2487:197-204. [PMID: 35687238 DOI: 10.1007/978-1-0716-2269-8_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Multienzyme complexes naturally exist in cells to catalyze cascade reactions in metabolic pathways. By clustering the enzymes in close proximity, these nanomachineries achieve effective conversion of metabolites. Bioengineers are working on the development of synthetic versions of multienzyme complexes in cells to synergize heterologous biosynthesis. Assembling enzymes on protein scaffolds through protein-protein interactions is a viable and facile way to form synthetic multienzyme complexes. Here, we describe the general methods to construct self-assembled multienzyme nanostructures in Escherichia coli for biosynthesis of valuable chemicals.
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Affiliation(s)
- Qixin Wei
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Jiang Xia
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, SAR, China.
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35
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Sun C, Li G, Li H, Lyu Y, Yu S, Zhou J. Enhancing Flavan-3-ol Biosynthesis in Saccharomyces cerevisiae. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:12763-12772. [PMID: 34694796 DOI: 10.1021/acs.jafc.1c04489] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Flavan-3-ols are a group of flavonoids that exert beneficial effects. This study aimed to enhance key metabolic processes related to flavan-3-ols biosynthesis. The engineered Saccharomyces cerevisiae strain E32 that produces naringenin from glucose was further engineered for de novo production of two basic flavan-3-ols, afzelechin (AFZ) and catechin (CAT). Through introduction of flavonoid 3-hydroxylase, flavonoid 3'-hydroxylase, dihydroflavonol 4-reductase (DFR), and leucoanthocyanidin reductase (LAR), de novo production of AFZ and CAT can be achieved. The combination of FaDFR from Fragaria × ananassa and VvLAR from Vitis vinifera was optimal. (GGGGS)2 and (EAAAK)2 linkers between DFR and LAR proved optimal for the production of AFZ and CAT, respectively. Optimization of promoters and the enhanced supply of NADPH further increased the production. By combining the best engineering strategies, the optimum strains produced 500.5 mg/L AFZ and 321.3 mg/L CAT, respectively, after fermentation for 90 h in a 5 L bioreactor. The strategies presented could be applied for a more efficient production of flavan-3-ols by various microorganisms.
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Affiliation(s)
- Chengcheng Sun
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Guangjian Li
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Hongbiao Li
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yunbin Lyu
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Shiqin Yu
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jingwen Zhou
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
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36
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Lin P, Dinh H, Nakata E, Morii T. Conditional dependence of enzyme cascade reaction efficiency on the inter-enzyme distance. Chem Commun (Camb) 2021; 57:11197-11200. [PMID: 34622899 DOI: 10.1039/d1cc04162b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A dual-enzyme cascade, xylitol dehydrogenase and xylulose kinase, derived from the xylose metabolic pathway, was constructed on a three-dimensional DNA scaffold which exhibited a dynamic shape transition from an open state to a closed hexagonal prism. Evaluation of the cascade reaction efficiencies in the open and closed states revealed little to no inter-enzyme distance dependence, presumably due to the far larger catalytic constant of the downstream enzyme. The inter-enzyme distance was not the dominant factor for cascade efficiency when the kinetic parameters of the cascade enzymes were imbalanced with the highly efficient downstream enzyme.
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Affiliation(s)
- Peng Lin
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Huyen Dinh
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
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37
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Serleti A, Xiao X, Shortall K, Magner E. Use of Self‐Assembled Monolayers for the Sequential and Independent Immobilisation of Enzymes. ChemElectroChem 2021. [DOI: 10.1002/celc.202101145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Alessandro Serleti
- Department of Chemical Sciences Bernal Institute University of Limerick Limerick Ireland
| | - Xinxin Xiao
- Department of Chemistry Technical University of Denmark Kongens Lyngby 2800 Denmark
| | - Kim Shortall
- Department of Chemical Sciences Bernal Institute University of Limerick Limerick Ireland
| | - Edmond Magner
- Department of Chemical Sciences Synthesis and Solid State Pharmaceutical Research Centre Bernal Institute MS1016, University of Limerick Limerick Ireland
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Zhu F, Peña M, Bennett GN. Metabolic engineering of Escherichia coli for quinolinic acid production by assembling L-aspartate oxidase and quinolinate synthase as an enzyme complex. Metab Eng 2021; 67:164-172. [PMID: 34192552 PMCID: PMC10024596 DOI: 10.1016/j.ymben.2021.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 04/23/2021] [Accepted: 06/21/2021] [Indexed: 10/21/2022]
Abstract
Quinolinic acid (QA) is a key intermediate of nicotinic acid (Niacin) which is an essential human nutrient and widely used in food and pharmaceutical industries. In this study, a quinolinic acid producer was constructed by employing comprehensive engineering strategies. Firstly, the quinolinic acid production was improved by deactivation of NadC (to block the consumption pathway), NadR (to eliminate the repression of L-aspartate oxidase and quinolinate synthase), and PtsG (to slow the glucose utilization rate and achieve a more balanced metabolism, and also to increase the availability of the precursor phosphoenolpyruvate). Further modifications to enhance quinolinic acid production were investigated by increasing the oxaloacetate pool through overproduction of phosphoenolpyruvate carboxylase and deactivation of acetate-producing pathway enzymes. Moreover, quinolinic acid production was accelerated by assembling NadB and NadA as an enzyme complex with the help of peptide-peptide interaction peptides RIAD and RIDD, which resulted in up to 3.7 g/L quinolinic acid being produced from 40 g/L glucose in shake-flask cultures. A quinolinic acid producer was constructed in this study, and these results lay a foundation for further engineering of microbial cell factories to efficiently produce quinolinic acid and subsequently convert this product to nicotinic acid for industrial applications.
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Affiliation(s)
- Fayin Zhu
- Department of BioSciences, Rice University, Houston, TX, 77005, USA
| | - Matthew Peña
- Department of BioSciences, Rice University, Houston, TX, 77005, USA
| | - George N Bennett
- Department of BioSciences, Rice University, Houston, TX, 77005, USA; Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, 77005, USA.
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Schuphan J, Commandeur U. Analysis of Engineered Tobacco Mosaic Virus and Potato Virus X Nanoparticles as Carriers for Biocatalysts. FRONTIERS IN PLANT SCIENCE 2021; 12:710869. [PMID: 34421958 PMCID: PMC8377429 DOI: 10.3389/fpls.2021.710869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
Plant virus nanoparticles are promising candidates for the development of novel materials, including nanocomposites and scaffolds/carriers for functional molecules such as enzymes. Their advantages for enzyme immobilization include a modular organization, a robust and programmable structure, and a simple, cost-effective production. However, the activity of many enzymes relies on posttranslational modification and most plant viruses replicate in the cytoplasm, so functional enzymes cannot be displayed on the virus surface by direct coat protein fusions. An alternative display system to present the Trichoderma reesei endoglucanase Cel12A on potato virus X (PVX) using SpyTag/SpyCatcher (ST/SC) technology was recently developed by the authors, which allows the carrier and enzyme to be produced separately before isopeptide conjugation. Although kinetic analysis clearly indicated efficient biocatalyst activity, the PVX carrier interfered with substrate binding. To overcome this, the suitability of tobacco mosaic virus (TMV) was tested, which can also accommodate a larger number of ST peptides. We produced TMV particles displaying ST as a new platform for the immobilization of enzymes such as Cel12A, and compared its performance to the established PVX-ST platform in terms of catalytic efficiency. Although more enzyme molecules were immobilized on the TMV-ST particles, we found that the rigid scaffold and helical spacing significantly affected enzyme activity.
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Massad N, Banta SA. NAD(H)-PEG Swing Arms Improve Both the Activities and Stabilities of Modularly-Assembled Transhydrogenases Designed with Predictable Selectivities. Chembiochem 2021; 23:e202100251. [PMID: 34351671 DOI: 10.1002/cbic.202100251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/04/2021] [Indexed: 11/11/2022]
Abstract
Protein engineering has been used to enhance the activities, selectivities, and stabilities of enzymes. Frequently tradeoffs are observed, where improvements in some features can come at the expense of others. Nature uses modular assembly of active sites for complex, multi-step reactions, and natural "swing arm" mechanisms have evolved to transfer intermediates between active sites. Biomimetic polyethylene glycol (PEG) swing arms modified with NAD(H) have been explored to introduce synthetic swing arms into fused oxidoreductases. Here we report that increasing NAD(H)-PEG swing arms can improve the activity of synthetic formate:malate oxidoreductases as well as the thermal and operational stabilities of the biocatalysts. The modular assembly approach enables the K M values of new enzymes to be predictable, based on the parental enzymes. We describe four unique synthetic transhydrogenases that have no native homologs, and this platform could be easily extended for the predictive design of additional synthetic cofactor-independent transhydrogenases.
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Affiliation(s)
- Nadim Massad
- Columbia University, Chemical Engineering, UNITED STATES
| | - Scott A Banta
- Columbia University, Department of Chemical Engineering, 820 Mudd MC4721, 500 West 120th Street, 10027, New York, UNITED STATES
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Omidvar M, Zdarta J, Sigurdardóttir SB, Pinelo M. Mimicking natural strategies to create multi-environment enzymatic reactors: From natural cell compartments to artificial polyelectrolyte reactors. Biotechnol Adv 2021; 54:107798. [PMID: 34265377 DOI: 10.1016/j.biotechadv.2021.107798] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/09/2021] [Accepted: 07/07/2021] [Indexed: 12/28/2022]
Abstract
Engineering microenvironments for sequential enzymatic reactions has attracted specific interest within different fields of research as an effective strategy to improve the catalytic performance of enzymes. While in industry most enzymatic reactions occur in a single compartment carrier, living cells are however able to conduct multiple reactions simultaneously within confined sub-compartments, or organelles. Engineering multi-compartments with regulated environments and transformation properties enhances enzyme activity and stability and thus increases the overall yield of final products. In this review, we discuss current and potential methods to fabricate artificial cells for sequential enzymatic reactions, which are inspired by mechanisms and metabolic pathways developed by living cells. We aim to advance the understanding of living cell complexity and its compartmentalization and present solutions to mimic these processes in vitro. Particular attention has been given to layer-by-layer assembly of polyelectrolytes for developing multi-compartments. We hope this review paves the way for the next steps toward engineering of smart artificial multi-compartments with adoptive stimuli-responsive properties, mimicking living cells to improve catalytic properties and efficiency of the enzymes and enhance their stability.
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Affiliation(s)
- Maryam Omidvar
- Process and Systems Engineering Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, 2800 Kgs. Lyngby, Denmark
| | - Jakub Zdarta
- Process and Systems Engineering Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, 2800 Kgs. Lyngby, Denmark; Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, 60965 Poznan, Poland
| | - Sigyn Björk Sigurdardóttir
- Process and Systems Engineering Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, 2800 Kgs. Lyngby, Denmark
| | - Manuel Pinelo
- Process and Systems Engineering Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, 2800 Kgs. Lyngby, Denmark.
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Lin P, Dinh H, Nakata E, Morii T. Dynamic Shape Transformation of a DNA Scaffold Applied for an Enzyme Nanocarrier. Front Chem 2021; 9:697857. [PMID: 34249866 PMCID: PMC8263910 DOI: 10.3389/fchem.2021.697857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/01/2021] [Indexed: 11/13/2022] Open
Abstract
Structural programmability and accurate addressability of DNA nanostructures are ideal characteristics for the platform of arranging enzymes with the nanoscale precision. In this study, a three-dimensional DNA scaffold was designed to enable a dynamic shape transition from an open plate-like structure to its closed state of a hexagonal prism structure. The two domains in the open state were folded together to transform into the closed state by hybridization of complementary short DNA closing keys at both of the facing edges in over 90% yield. The shape transformation of the DNA scaffold was extensively studied by means of the fluorescence energy transfer measurement, atomic force microscope images, and agarose gel electrophoretic analyses. A dimeric enzyme xylitol dehydrogenase was assembled on the DNA scaffold in its open state in a high-loading yield. The enzyme loaded on the scaffold was subsequently transformed to its closed state by the addition of short DNA closing keys. The enzyme encapsulated in the closed state displayed comparable activity to that in the open state, ensuring that the catalytic activity of the enzyme was well maintained in the DNA nanocarrier. The nanocarrier with efficient encapsulation ability is potentially applicable for drug delivery, biosensing, biocatalytic, and diagnostic tools.
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Affiliation(s)
- Peng Lin
- Institute of Advanced Energy, Kyoto University, Kyoto, Japan
| | - Huyen Dinh
- Institute of Advanced Energy, Kyoto University, Kyoto, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Kyoto, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Kyoto, Japan
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Kozlowski MT, Silverman BR, Johnstone CP, Tirrell DA. Genetically Programmable Microbial Assembly. ACS Synth Biol 2021; 10:1351-1359. [PMID: 34009951 DOI: 10.1021/acssynbio.0c00616] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Engineered microbial communities show promise in a wide range of applications, including environmental remediation, microbiome engineering, and synthesis of fine chemicals. Here we present methods by which bacterial aggregates can be directed into several distinct architectures by inducible surface expression of heteroassociative protein domains (SpyTag/SpyCatcher and SynZip17/18). Programmed aggregation can be used to activate a quorum-sensing circuit, and aggregate size can be tuned via control of the amount of the associative protein displayed on the cell surface. We further demonstrate reversibility of SynZip-mediated assembly by addition of soluble competitor peptide. Genetically programmable bacterial assembly provides a starting point for the development of new applications of engineered microbial communities in environmental technology, agriculture, human health, and bioreactor design.
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Affiliation(s)
- Mark T. Kozlowski
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States
| | - Bradley R. Silverman
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States
| | - Christopher P. Johnstone
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States
| | - David A. Tirrell
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States
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Wu J, Wang X, Xiao L, Wang F, Zhang Y, Li X. Synthetic Protein Scaffolds for Improving R-(-)-Linalool Production in Escherichia coli. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:5663-5670. [PMID: 33983023 DOI: 10.1021/acs.jafc.1c01101] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
R-(-)-Linalool is widely used in the pharmaceutical, agrochemical, and fragrance industries; however, its applications are limited owing to low yield and high cost of production. To improve the production efficiency of R-(-)-linalool in Escherichia coli, three enzymes [E. coli-derived isopentenyl diphosphate isomerase, Abies grandis-derived geranyl diphosphate synthase, and Streptomyces clavuligerus-derived (3R)-linalool synthases] were physically colocalized to synthetic complexes using synthetic protein scaffolds of GTPase-binding domain, Src homology 3, and PSD95/DlgA/Zo-1. R-(-)-Linalool was produced at the highest concentration in the strain IGL114 containing a scaffold ratio of 1:1:4. By further optimizing the inducer, temperature, and glycerol concentration, the production titer of R-(-)-linalool in the shake flask was increased by approximately 10 times compared with that of the scaffold-free control and was 2.78 times the previously reported yield. The production in the fermenter was about 1.5 times the previous highest production. In general, the final strain accumulated 277.8 and 1523.2 mg/L R-(-)-linalool under the conditions of shake-flask and fed-batch fermentation, respectively. This study provides a foundation for the assembly of bacterial intracellular protein scaffolds.
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Affiliation(s)
- Jing Wu
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Xun Wang
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Longjie Xiao
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Fei Wang
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Yu Zhang
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Xun Li
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
- International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
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45
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De la Fuente IM, Martínez L, Carrasco-Pujante J, Fedetz M, López JI, Malaina I. Self-Organization and Information Processing: From Basic Enzymatic Activities to Complex Adaptive Cellular Behavior. Front Genet 2021; 12:644615. [PMID: 34093645 PMCID: PMC8176287 DOI: 10.3389/fgene.2021.644615] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 04/16/2021] [Indexed: 11/13/2022] Open
Abstract
One of the main aims of current biology is to understand the origin of the molecular organization that underlies the complex dynamic architecture of cellular life. Here, we present an overview of the main sources of biomolecular order and complexity spanning from the most elementary levels of molecular activity to the emergence of cellular systemic behaviors. First, we have addressed the dissipative self-organization, the principal source of molecular order in the cell. Intensive studies over the last four decades have demonstrated that self-organization is central to understand enzyme activity under cellular conditions, functional coordination between enzymatic reactions, the emergence of dissipative metabolic networks (DMN), and molecular rhythms. The second fundamental source of order is molecular information processing. Studies on effective connectivity based on transfer entropy (TE) have made possible the quantification in bits of biomolecular information flows in DMN. This information processing enables efficient self-regulatory control of metabolism. As a consequence of both main sources of order, systemic functional structures emerge in the cell; in fact, quantitative analyses with DMN have revealed that the basic units of life display a global enzymatic structure that seems to be an essential characteristic of the systemic functional metabolism. This global metabolic structure has been verified experimentally in both prokaryotic and eukaryotic cells. Here, we also discuss how the study of systemic DMN, using Artificial Intelligence and advanced tools of Statistic Mechanics, has shown the emergence of Hopfield-like dynamics characterized by exhibiting associative memory. We have recently confirmed this thesis by testing associative conditioning behavior in individual amoeba cells. In these Pavlovian-like experiments, several hundreds of cells could learn new systemic migratory behaviors and remember them over long periods relative to their cell cycle, forgetting them later. Such associative process seems to correspond to an epigenetic memory. The cellular capacity of learning new adaptive systemic behaviors represents a fundamental evolutionary mechanism for cell adaptation.
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Affiliation(s)
- Ildefonso M. De la Fuente
- Department of Nutrition, CEBAS-CSIC Institute, Murcia, Spain
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Luis Martínez
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, Spain
- Basque Center of Applied Mathematics (BCAM), Bilbao, Spain
| | - Jose Carrasco-Pujante
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Maria Fedetz
- Department of Cell Biology and Immunology, Institute of Parasitology and Biomedicine “López-Neyra”, CSIC, Granada, Spain
| | - José I. López
- Department of Pathology, Cruces University Hospital, Biocruces-Bizkaia Health Research Institute, Barakaldo, Spain
| | - Iker Malaina
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, Spain
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Mashima T, Rosier BJHM, Oohora K, de Greef TFA, Hayashi T, Brunsveld L. Dynamic Protease Activation on a Multimeric Synthetic Protein Scaffold via Adaptable DNA-Based Recruitment Domains. Angew Chem Int Ed Engl 2021; 60:11262-11266. [PMID: 33725379 PMCID: PMC8252739 DOI: 10.1002/anie.202102160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Indexed: 12/21/2022]
Abstract
Hexameric hemoprotein (HTHP) is employed as a scaffold protein for the supramolecular assembly and activation of the apoptotic signalling enzyme caspase-9, using short DNA elements as modular recruitment domains. Caspase-9 assembly and activation on the HTHP platform due to enhanced proximity is followed by combinatorial inhibition at high scaffold concentrations. The DNA recruitment domains allow for reversible switching of the caspase-9 assembly and activity state using short modulatory DNA strands. Tuning of the recruitment domain affinity allows for generating kinetically trapped active enzyme complexes, as well as for dynamic repositioning of caspases over scaffold populations and inhibition using monovalent sink platforms. The conceptual combination of a highly structured multivalent protein platform with modular DNA recruitment domains provides emergent biomimicry properties with advanced levels of control over protein assembly.
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Affiliation(s)
- Tsuyoshi Mashima
- Institute for Complex Molecular Systems andLaboratory of Chemical BiologyDepartment of Biomedical EngineeringEindhoven University of TechnologyP.O. Box 513, 5600MBEindhovenThe Netherlands
| | - Bas J. H. M. Rosier
- Institute for Complex Molecular Systems andLaboratory of Chemical BiologyDepartment of Biomedical EngineeringEindhoven University of TechnologyP.O. Box 513, 5600MBEindhovenThe Netherlands
| | - Koji Oohora
- Department of Applied ChemistryGraduate School of EngineeringOsaka UniversitySuita 565–0871OsakaJapan
| | - Tom F. A. de Greef
- Institute for Complex Molecular Systems andLaboratory of Chemical BiologyDepartment of Biomedical EngineeringEindhoven University of TechnologyP.O. Box 513, 5600MBEindhovenThe Netherlands
- Computational Biology groupDepartment of Biomedical EngineeringEindhoven University of TechnologyEindhovenThe Netherlands
| | - Takashi Hayashi
- Department of Applied ChemistryGraduate School of EngineeringOsaka UniversitySuita 565–0871OsakaJapan
| | - Luc Brunsveld
- Institute for Complex Molecular Systems andLaboratory of Chemical BiologyDepartment of Biomedical EngineeringEindhoven University of TechnologyP.O. Box 513, 5600MBEindhovenThe Netherlands
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47
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Mashima T, Rosier BJHM, Oohora K, Greef TFA, Hayashi T, Brunsveld L. Dynamic Protease Activation on a Multimeric Synthetic Protein Scaffold via Adaptable DNA‐Based Recruitment Domains. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tsuyoshi Mashima
- Institute for Complex Molecular Systems and Laboratory of Chemical Biology Department of Biomedical Engineering Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
| | - Bas J. H. M. Rosier
- Institute for Complex Molecular Systems and Laboratory of Chemical Biology Department of Biomedical Engineering Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
| | - Koji Oohora
- Department of Applied Chemistry Graduate School of Engineering Osaka University Suita 565–0871 Osaka Japan
| | - Tom F. A. Greef
- Institute for Complex Molecular Systems and Laboratory of Chemical Biology Department of Biomedical Engineering Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
- Computational Biology group Department of Biomedical Engineering Eindhoven University of Technology Eindhoven The Netherlands
| | - Takashi Hayashi
- Department of Applied Chemistry Graduate School of Engineering Osaka University Suita 565–0871 Osaka Japan
| | - Luc Brunsveld
- Institute for Complex Molecular Systems and Laboratory of Chemical Biology Department of Biomedical Engineering Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
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48
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Jorgenson TD, Zareie HM, Sarikaya M, Overney RM. Symbiotic assembly of peptide nano-mosaics at solid interfaces. NANOSCALE 2021; 13:7735-7743. [PMID: 33928951 DOI: 10.1039/d0nr07208g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The spontaneous co-organization of distinct biomolecules at interfaces enables many of Nature's hierarchical organizations involving both hard and soft materials. Engineering efforts to mimic such hybrid complexes rely on our ability to rationally structure biomolecules at inorganic interfaces. Control over the nanoscale structure of patterned biomolecules remains challenging due to difficulties in controlling the multifarious interactions involved. This work discusses binary peptide assembly as a means to fabricate biomolecular nano-mosaics at graphite surfaces with predictable structures. Distinct peptide-substrate interactions lead to divergent crystallographic growth directions, molecular scale immiscibility, and a symbiotic assembly phenomenon. We present a symbiotic assembly model that accurately predicts the binary assembly structure relying solely on the constituent peptide nucleation kinetics and molar fractions. The ability to tune such biomolecular nano-mosaic structures facilitates the bottom up fabrication of high-density, multifunctional interfaces for nanotechnology.
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Affiliation(s)
- Tyler D Jorgenson
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, USA.
| | - Hadi M Zareie
- Department of Material Science and Engineering, University of Washington, Seattle, WA, USA
| | - Mehmet Sarikaya
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, USA. and Department of Material Science and Engineering, University of Washington, Seattle, WA, USA
| | - René M Overney
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, USA. and Department of Chemical Engineering, University of Washington, Seattle, WA, USA
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49
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Megarity CF, Siritanaratkul B, Herold RA, Morello G, Armstrong FA. Electron flow between the worlds of Marcus and Warburg. J Chem Phys 2021; 153:225101. [PMID: 33317312 DOI: 10.1063/5.0024701] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Living organisms are characterized by the ability to process energy (all release heat). Redox reactions play a central role in biology, from energy transduction (photosynthesis, respiratory chains) to highly selective catalyzed transformations of complex molecules. Distance and scale are important: electrons transfer on a 1 nm scale, hydrogen nuclei transfer between molecules on a 0.1 nm scale, and extended catalytic processes (cascades) operate most efficiently when the different enzymes are under nanoconfinement (10 nm-100 nm scale). Dynamic electrochemistry experiments (defined broadly within the term "protein film electrochemistry," PFE) reveal details that are usually hidden in conventional kinetic experiments. In PFE, the enzyme is attached to an electrode, often in an innovative way, and electron-transfer reactions, individual or within steady-state catalytic flow, can be analyzed in terms of precise potentials, proton coupling, cooperativity, driving-force dependence of rates, and reversibility (a mark of efficiency). The electrochemical experiments reveal subtle factors that would have played an essential role in molecular evolution. This article describes how PFE is used to visualize and analyze different aspects of biological redox chemistry, from long-range directional electron transfer to electron/hydride (NADPH) interconversion by a flavoenzyme and finally to NADPH recycling in a nanoconfined enzyme cascade.
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Affiliation(s)
- Clare F Megarity
- Department of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | | | - Ryan A Herold
- Department of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Giorgio Morello
- Department of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Fraser A Armstrong
- Department of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
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50
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Ali MY, Chang Q, Su Y, Wu J, Yan Q, Yin L, Zhang Y, Feng Y. Ordered Coimmobilization of Multimeric Enzyme Arrays with Enhanced Biocatalytic Cascade Performance. ACS APPLIED BIO MATERIALS 2021; 4:3027-3034. [DOI: 10.1021/acsabm.0c01148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mohamed Yassin Ali
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
- Biochemistry Department, Faculty of Agriculture, Fayoum University, 63514 Fayoum, Egypt
| | - Qing Chang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yuerong Su
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jinhong Wu
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Quande Yan
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Liang Yin
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yong Zhang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yan Feng
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
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