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Glänzer D, Pfeiffer M, Ribar A, Zeindl R, Tollinger M, Nidetzky B, Kreutz C. Efficient Synthetic Access to Stable Isotope Labelled Pseudouridine Phosphoramidites for RNA NMR Spectroscopy. Chemistry 2024; 30:e202401193. [PMID: 38652483 DOI: 10.1002/chem.202401193] [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: 03/25/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 04/25/2024]
Abstract
Here we report the efficient synthetic access to 13C/15N-labelled pseudouridine phosphoramidites, which were incorporated into a binary H/ACA box guide RNA/product complex comprising 77 nucleotides (nts) in total and into a 75 nt E. coli tRNAGly. The stable isotope (SI) labelled pseudouridines were produced via a highly efficient chemo-enzymatic synthesis. 13C/15N labelled uracils were produced via chemical synthesis and enzymatically converted to pseudouridine 5'-monophosphate (ΨMP) by using YeiN, a Ψ-5'-monophosphate C-glycosidase. Removal of the 5'-phosphate group yielded the desired pseudouridine nucleoside (Ψ), which was transformed into a phosphoramidite building suitable for RNA solid phase synthesis. A Ψ -building block carrying both a 13C and a 15N label was incorporated into a product RNA and the complex formation with a 63 nt H/ACA box RNA could be observed via NMR. Furthermore, the SI labelled pseudouridine building block was used to determine imino proton bulk water exchange rates of a 75 nt E. coli tRNAGly CCmnm5U, identifying the TΨC-loop 5-methyluridine as a modifier of the exchange rates. The efficient synthetic access to SI-labelled Ψ building blocks will allow the solution and solid-state NMR spectroscopic studies of Ψ containing RNAs and will facilitate the mass spectrometric analysis of Ψ-modified nucleic acids.
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Affiliation(s)
- David Glänzer
- Institute of Organic Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Martin Pfeiffer
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, A-8010, Graz, Austria
- and Austrian Centre of Industrial Biotechnology (acib), Krenngasse 37, A-8010, Graz, Austria
| | - Andrej Ribar
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, A-8010, Graz, Austria
- and Austrian Centre of Industrial Biotechnology (acib), Krenngasse 37, A-8010, Graz, Austria
| | - Ricarda Zeindl
- Institute of Organic Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Martin Tollinger
- Institute of Organic Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Bernd Nidetzky
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, A-8010, Graz, Austria
- and Austrian Centre of Industrial Biotechnology (acib), Krenngasse 37, A-8010, Graz, Austria
| | - Christoph Kreutz
- Institute of Organic Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
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2
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Luo Z, Qiao L, Chen H, Mao Z, Wu S, Ma B, Xie T, Wang A, Pei X, Sheldon RA. Precision Engineering of the Co-immobilization of Enzymes for Cascade Biocatalysis. Angew Chem Int Ed Engl 2024; 63:e202403539. [PMID: 38556813 DOI: 10.1002/anie.202403539] [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: 02/20/2024] [Revised: 03/23/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
The design and orderly layered co-immobilization of multiple enzymes on resin particles remain challenging. In this study, the SpyTag/SpyCatcher binding pair was fused to the N-terminus of an alcohol dehydrogenase (ADH) and an aldo-keto reductase (AKR), respectively. A non-canonical amino acid (ncAA), p-azido-L-phenylalanine (p-AzF), as the anchor for covalent bonding enzymes, was genetically inserted into preselected sites in the AKR and ADH. Employing the two bioorthogonal counterparts of SpyTag/SpyCatcher and azide-alkyne cycloaddition for the immobilization of AKR and ADH enabled sequential dual-enzyme coating on porous microspheres. The ordered dual-enzyme reactor was subsequently used to synthesize (S)-1-(2-chlorophenyl)ethanol asymmetrically from the corresponding prochiral ketone, enabling the in situ regeneration of NADPH. The reactor exhibited a high catalytic conversion of 74 % and good reproducibility, retaining 80 % of its initial activity after six cycles. The product had 99.9 % ee, which that was maintained in each cycle. Additionally, the double-layer immobilization method significantly increased the enzyme loading capacity, which was approximately 1.7 times greater than that of traditional single-layer immobilization. More importantly, it simultaneously enabled both the purification and immobilization of multiple enzymes on carriers, thus providing a convenient approach to facilitate cascade biocatalysis.
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Affiliation(s)
- Zhiyuan Luo
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, China, Hangzhou, Zhejiang, 311121, China
| | - Li Qiao
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, China, Hangzhou, Zhejiang, 311121, China
| | - Haomin Chen
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, China, Hangzhou, Zhejiang, 311121, China
| | - Zhili Mao
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, China, Hangzhou, Zhejiang, 311121, China
| | - Shujiao Wu
- School of Pharmacy, Hangzhou Normal University, China, Hangzhou, Zhejiang, 311121, China
| | - Bianqin Ma
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, China, Hangzhou, Zhejiang, 311121, China
| | - Tian Xie
- School of Pharmacy, Hangzhou Normal University, China, Hangzhou, Zhejiang, 311121, China
| | - Anming Wang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, China, Hangzhou, Zhejiang, 311121, China
| | - Xiaolin Pei
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, China, Hangzhou, Zhejiang, 311121, China
| | - Roger A Sheldon
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand PO Wits., 2050, Johannesburg, South Africa
- Department of Biotechnology, Section BOC, Delft University of Technology, Van der Maasweg 9, 2629 HZ, Delft, The Netherlands
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3
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Westarp S, Benckendorff CMM, Motter J, Röhrs V, Sanghvi YS, Neubauer P, Kurreck J, Kurreck A, Miller GJ. Biocatalytic Nucleobase Diversification of 4'-Thionucleosides and Application of Derived 5-Ethynyl-4'-thiouridine for RNA Synthesis Detection. Angew Chem Int Ed Engl 2024:e202405040. [PMID: 38785103 DOI: 10.1002/anie.202405040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 05/25/2024]
Abstract
Nucleoside and nucleotide analogues have proven to be transformative in the treatment of viral infections and cancer. One branch of structural modification to deliver new nucleoside analogue classes explores replacement of canonical ribose oxygen with a sulfur atom. Whilst biological activity of such analogues has been shown in some cases, widespread exploration of this compound class is hitherto hampered by the lack of a straightforward and universal nucleobase diversification strategy. Herein, we present a synergistic platform enabling both biocatalytic nucleobase diversification from 4'-thiouridine in a one-pot process, and chemical functionalization to access new entities. This methodology delivers entry across pyrimidine and purine 4'-thionucleosides, paving a way for wider synthetic and biological exploration. We exemplify our approach by enzymatic synthesis of 5-iodo-4'-thiouridine on multi-milligram scale and from here switch to complete chemical synthesis of a novel nucleoside analogue probe, 5-ethynyl-4'-thiouridine. Finally, we demonstrate the utility of this probe to monitor RNA synthesis in proliferating HeLa cells, validating its capability as a new metabolic RNA labelling tool.
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Affiliation(s)
- Sarah Westarp
- Bioprocess Engineering, Institute of Biotechnology, Technische Universität Berlin, Ackerstraße 76 ACK24, D-13355, Berlin, Germany
- BioNukleo GmbH, Ackerstrasse 76, D-13355, Berlin, Germany
| | - Caecilie M M Benckendorff
- Centre for Glycoscience and School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire, ST5 5BG, UK
| | - Jonas Motter
- Bioprocess Engineering, Institute of Biotechnology, Technische Universität Berlin, Ackerstraße 76 ACK24, D-13355, Berlin, Germany
| | - Viola Röhrs
- Applied Biochemistry, Institute of Biotechnology, Technische Universität Berlin, Gustav-Meyer-Allee 25, TIB 4/3-2, D-13355, Berlin, Germany
| | - Yogesh S Sanghvi
- Rasayan Inc., 2802 Crystal Ridge Road, Encinitas, California, 92024, USA
| | - Peter Neubauer
- Bioprocess Engineering, Institute of Biotechnology, Technische Universität Berlin, Ackerstraße 76 ACK24, D-13355, Berlin, Germany
| | - Jens Kurreck
- Applied Biochemistry, Institute of Biotechnology, Technische Universität Berlin, Gustav-Meyer-Allee 25, TIB 4/3-2, D-13355, Berlin, Germany
| | - Anke Kurreck
- Bioprocess Engineering, Institute of Biotechnology, Technische Universität Berlin, Ackerstraße 76 ACK24, D-13355, Berlin, Germany
- BioNukleo GmbH, Ackerstrasse 76, D-13355, Berlin, Germany
| | - Gavin J Miller
- Centre for Glycoscience and School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire, ST5 5BG, UK
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4
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Zhang C, Wei G, Zhou N, Wang Y, Feng J, Wang X, Zhang A, Chen K. Systematic Engineering of Escherichia coli for Efficient Production of Pseudouridine from Glucose and Uracil. ACS Synth Biol 2024; 13:1303-1311. [PMID: 38529630 DOI: 10.1021/acssynbio.4c00028] [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: 03/27/2024]
Abstract
In this study, we proposed a biological approach to efficiently produce pseudouridine (Ψ) from glucose and uracil in vivo using engineered Escherichia coli. By screening host strains and core enzymes, E. coli MG1655 overexpressing Ψ monophosphate (ΨMP) glycosidase and ΨMP phosphatase was obtained, which displayed the highest Ψ concentration. Then, optimization of the RBS sequences, enhancement of ribose 5-phosphate supply in the cells, and overexpression of the membrane transport protein UraA were investigated. Finally, fed-batch fermentation of Ψ in a 5 L fermentor can reach 27.5 g/L with a yield of 89.2 mol % toward uracil and 25.6 mol % toward glucose within 48 h, both of which are the highest to date. In addition, the Ψ product with a high purity of 99.8% can be purified from the fermentation broth after crystallization. This work provides an efficient and environmentally friendly protocol for allowing for the possibility of Ψ bioproduction on an industrial scale.
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Affiliation(s)
- Chi Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Guoguang Wei
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ning Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yingying Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jia Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xin Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Alei Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Kequan Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
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5
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Bourgery C, Mendoza DJ, Garnier G, Mouterde LMM, Allais F. Immobilization of Adenosine Derivatives onto Cellulose Nanocrystals via Click Chemistry for Biocatalysis Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11315-11323. [PMID: 38394235 DOI: 10.1021/acsami.3c19025] [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: 02/25/2024]
Abstract
Adenosine triphosphate (ATP) is a central molecule of organisms and is involved in many biological processes. It is also widely used in biocatalytic processes, especially as a substrate and precursor of many cofactors─such as nicotinamide adenine dinucleotide phosphate (NADP(H)), coenzyme A (CoA), and S-adenosylmethionine (SAM). Despite its great scientific interest and pivotal role, its use in industrial processes is impeded by its prohibitory cost. To overcome this limitation, we developed a greener synthesis of adenosine derivatives and efficiently selectively grafted them onto organic nanoparticles. In this study, cellulose nanocrystals were used as a model combined with click chemistry via a copper-catalyzed azide/alkyne cycloaddition reaction (CuAAC). The grafted adenosine triphosphate derivative fully retains its biocatalytic capability, enabling heterobiocatalysis for modern biochemical processes.
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Affiliation(s)
- Célestin Bourgery
- URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, Pomacle 51110, France
| | - David Joram Mendoza
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Gil Garnier
- URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, Pomacle 51110, France
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Louis M M Mouterde
- URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, Pomacle 51110, France
| | - Florent Allais
- URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, Pomacle 51110, France
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
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6
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Tang P, Harding CJ, Dickson AL, da Silva RG, Harrison DJ, Czekster CM. Snapshots of the Reaction Coordinate of a Thermophilic 2'-Deoxyribonucleoside/ribonucleoside Transferase. ACS Catal 2024; 14:3090-3102. [PMID: 38449528 PMCID: PMC10913048 DOI: 10.1021/acscatal.3c06260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 03/08/2024]
Abstract
Nucleosides are ubiquitous to life and are required for the synthesis of DNA, RNA, and other molecules crucial for cell survival. Despite the notoriously difficult organic synthesis of nucleosides, 2'-deoxynucleoside analogues can interfere with natural DNA replication and repair and are successfully employed as anticancer, antiviral, and antimicrobial compounds. Nucleoside 2'-deoxyribosyltransferase (dNDT) enzymes catalyze transglycosylation via a covalent 2'-deoxyribosylated enzyme intermediate with retention of configuration, having applications in the biocatalytic synthesis of 2'-deoxynucleoside analogues in a single step. Here, we characterize the structure and function of a thermophilic dNDT, the protein from Chroococcidiopsis thermalis (CtNDT). We combined enzyme kinetics with structural and biophysical studies to dissect mechanistic features in the reaction coordinate, leading to product formation. Bell-shaped pH-rate profiles demonstrate activity in a broad pH range of 5.5-9.5, with two very distinct pKa values. A pronounced viscosity effect on the turnover rate indicates a diffusional step, likely product (nucleobase1) release, to be rate-limiting. Temperature studies revealed an extremely curved profile, suggesting a large negative activation heat capacity. We trapped a 2'-fluoro-2'-deoxyarabinosyl-enzyme intermediate by mass spectrometry and determined high-resolution structures of the protein in its unliganded, substrate-bound, ribosylated, 2'-difluoro-2'-deoxyribosylated, and in complex with probable transition-state analogues. We reveal key features underlying (2'-deoxy)ribonucleoside selection, as CtNDT can also use ribonucleosides as substrates, albeit with a lower efficiency. Ribonucleosides are the building blocks of RNA and other key intracellular metabolites participating in energy and metabolism, expanding the scope of use of CtNDT in biocatalysis.
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Affiliation(s)
- Peijun Tang
- School
of Biology, Biomedical Sciences Research Complex, University of St Andrews, St Andrews, Fife KY16 9ST, United Kingdom
| | - Christopher J. Harding
- School
of Biology, Biomedical Sciences Research Complex, University of St Andrews, St Andrews, Fife KY16 9ST, United Kingdom
| | - Alison L. Dickson
- School
of Medicine, University of St Andrews, North Haugh, St Andrews KY16 9TF, United Kingdom
| | - Rafael G. da Silva
- School
of Biology, Biomedical Sciences Research Complex, University of St Andrews, St Andrews, Fife KY16 9ST, United Kingdom
| | - David J. Harrison
- School
of Medicine, University of St Andrews, North Haugh, St Andrews KY16 9TF, United Kingdom
| | - Clarissa Melo Czekster
- School
of Biology, Biomedical Sciences Research Complex, University of St Andrews, St Andrews, Fife KY16 9ST, United Kingdom
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7
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Hernández-Cid A, Lozano-Aponte J, Scior T. Molecular Dynamics and Docking Simulations of Homologous RsmE Methyltransferases Hints at a General Mechanism for Substrate Release upon Uridine Methylation on 16S rRNA. Int J Mol Sci 2023; 24:16722. [PMID: 38069045 PMCID: PMC10706118 DOI: 10.3390/ijms242316722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/12/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023] Open
Abstract
In this study, molecular dynamics (MD) and docking simulations were carried out on the crystal structure of Neisseria Gonorrhoeae RsmE aiming at free energy of binding estimation (ΔGbinding) of the methyl transfer substrate S-adenosylmethionine (SAM), as well as its homocysteine precursor S-adenosylhomocysteine (SAH). The mechanistic insight gained was generalized in view of existing homology to two other crystal structures of RsmE from Escherichia coli and Aquifex aeolicus. As a proof of concept, the crystal poses of SAM and SAH were reproduced reflecting a more general pattern of molecular interaction for bacterial RsmEs. Our results suggest that a distinct set of conserved residues on loop segments between β12, α6, and Met169 are interacting with SAM and SAH across these bacterial methyltransferases. Comparing molecular movements over time (MD trajectories) between Neisseria gonorrhoeae RsmE alone or in the presence of SAH revealed a hitherto unknown gatekeeper mechanism by two isoleucine residues, Ile171 and Ile219. The proposed gating allows switching from an open to a closed state, mimicking a double latch lock. Additionally, two key residues, Arg221 and Thr222, were identified to assist the exit mechanism of SAH, which could not be observed in the crystal structures. To the best of our knowledge, this study describes for the first time a general catalytic mechanism of bacterial RsmE on theoretical ground.
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Affiliation(s)
- Aaron Hernández-Cid
- Biochemistry Department, BioPlaster Research Institute, Puebla C.P. 72260, Mexico;
| | - Jorge Lozano-Aponte
- Escuela de Ingeniería y Ciencia, Instituto Tecnológico y de Estudios Superiores de Monterrey, Campus Puebla, Puebla C.P. 72453, Mexico;
| | - Thomas Scior
- Departmento de Farmacia, Facultad de Ciencias Químicas, Ciudad Univeristaria, Benemérita Universidad Autónoma de Puebla, Puebla C.P. 72570, Mexico
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8
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Zhou M, Tang R, Wei L, Wang J, Qi H. Metabolic Engineering of Escherichia coli for Efficient Production of Pseudouridine. ACS OMEGA 2023; 8:36386-36392. [PMID: 37810737 PMCID: PMC10552469 DOI: 10.1021/acsomega.3c05219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/06/2023] [Indexed: 10/10/2023]
Abstract
Pseudouridine-incorporated mRNA vaccines can enhance protein expression and reduce immunogenicity, leading to a high demand for pseudouridine to be used in mRNA drug production. To achieve the low-cost production of pseudouridine, Escherichia coli was systematically modified to utilize inexpensive raw materials to efficiently produce pseudouridine. First, in the pyrimidine biosynthesis pathway, genes related to the precursor competing pathway and the negative regulator were deleted, which increased pseudouridine production. Second, two critical genes, pseudouridine-5'-phosphate glycosidase (psuG) and phosphatase genes from different bacteria, were screened and employed in various genetic constructs, and the pseudouridine yield of the optical strain increased to 599 mg/L. The accumulation of pseudouridine was further increased by the deletion of pseudouridine catabolism-related genes. Ultimately, the pseudouridine titer in a 5 L bioreactor reached 7.9 g/L, and the yield of pseudouridine on glucose was 0.15 g/g. Overall, a cell factory producing pseudouridine was successfully constructed and showed potential for industrial production.
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Affiliation(s)
- Min Zhou
- Institute
of Biopharmaceuticals, School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, China
| | - Ruyu Tang
- Institute
of Biopharmaceuticals, School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, China
| | - Liyuan Wei
- Institute
of Biopharmaceuticals, School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, China
| | - Jidong Wang
- Key
Laboratory of Vector Biology and Pathogen Control of Zhejiang Province,
College of Life Science, Huzhou University, Huzhou 313000, China
| | - Huan Qi
- Key
Laboratory of Vector Biology and Pathogen Control of Zhejiang Province,
College of Life Science, Huzhou University, Huzhou 313000, China
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