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Solomonova E, Shoman N, Akimov A. Physiological responses of the microalgae Thalassiosira weissflogii to the presence of the herbicide glyphosate in the medium. FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP23205. [PMID: 38669460 DOI: 10.1071/fp23205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 04/07/2024] [Indexed: 04/28/2024]
Abstract
We evaluated changes in growth, chlorophyll fluorescence and basic physiological and biochemical parameters of the microalgae Thalassiosira weissflogii cells under the influence of the herbicide glyphosate in concentrations 0, 25, 95 and 150μgL-1 . The toxic effect of glyphosate on algae is weakly dependent on the level of cell mineral nutrition. High concentrations of the herbicide do not lead to the death of microalgae but block the process of algae cell division. An increase in the glyphosate concentration in the medium leads to a slowdown or stop of algal growth, a decrease in their final biomass, an increase in the production of reactive oxygen species (ROS), depolarisation of mitochondrial membranes and metabolic activity of algae. Glyphosate inhibits the photosynthetic activity of cells and inhibits the relative rate of electron transport in the photosynthetic apparatus. Glyphosate at the studied concentrations does not affect the size characteristics of cells and the intracellular content of chlorophyll in T. weissflogii . The studied herbicide or products of its decay retain their toxic properties in the environment for at least 9days. This result shows the need for further in-depth studies to assess the physiological response and possible acclimation changes in the functional state of oxygenic phototrophs in response to the herbicide action. The species specificity of microalgae to the effects of glyphosate in natural conditions is potentially dangerous due to a possible change in the species structure of biocoenoses, in particular, a decrease in the contribution of diatoms.
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Affiliation(s)
- Ekaterina Solomonova
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2, Nakhimov Avenue, Sevastopol, Russian Federation
| | - Natalia Shoman
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2, Nakhimov Avenue, Sevastopol, Russian Federation
| | - Arkady Akimov
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2, Nakhimov Avenue, Sevastopol, Russian Federation
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2
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Vanella R, Küng C, Schoepfer AA, Doffini V, Ren J, Nash MA. Understanding activity-stability tradeoffs in biocatalysts by enzyme proximity sequencing. Nat Commun 2024; 15:1807. [PMID: 38418512 PMCID: PMC10902396 DOI: 10.1038/s41467-024-45630-3] [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: 03/24/2023] [Accepted: 01/26/2024] [Indexed: 03/01/2024] Open
Abstract
Understanding the complex relationships between enzyme sequence, folding stability and catalytic activity is crucial for applications in industry and biomedicine. However, current enzyme assay technologies are limited by an inability to simultaneously resolve both stability and activity phenotypes and to couple these to gene sequences at large scale. Here we present the development of enzyme proximity sequencing, a deep mutational scanning method that leverages peroxidase-mediated radical labeling with single cell fidelity to dissect the effects of thousands of mutations on stability and catalytic activity of oxidoreductase enzymes in a single experiment. We use enzyme proximity sequencing to analyze how 6399 missense mutations influence folding stability and catalytic activity in a D-amino acid oxidase from Rhodotorula gracilis. The resulting datasets demonstrate activity-based constraints that limit folding stability during natural evolution, and identify hotspots distant from the active site as candidates for mutations that improve catalytic activity without sacrificing stability. Enzyme proximity sequencing can be extended to other enzyme classes and provides valuable insights into biophysical principles governing enzyme structure and function.
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Affiliation(s)
- Rosario Vanella
- Institute of Physical Chemistry, Department of Chemistry, University of Basel, 4058, Basel, Switzerland.
- Department of Biosystems Science and Engineering, ETH Zurich, 4058, Basel, Switzerland.
| | - Christoph Küng
- Institute of Physical Chemistry, Department of Chemistry, University of Basel, 4058, Basel, Switzerland
- Department of Biosystems Science and Engineering, ETH Zurich, 4058, Basel, Switzerland
| | - Alexandre A Schoepfer
- Institute of Physical Chemistry, Department of Chemistry, University of Basel, 4058, Basel, Switzerland
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
- National Center for Competence in Research (NCCR), Catalysis, École Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Vanni Doffini
- Institute of Physical Chemistry, Department of Chemistry, University of Basel, 4058, Basel, Switzerland
- Department of Biosystems Science and Engineering, ETH Zurich, 4058, Basel, Switzerland
| | - Jin Ren
- Institute of Physical Chemistry, Department of Chemistry, University of Basel, 4058, Basel, Switzerland
- Department of Biosystems Science and Engineering, ETH Zurich, 4058, Basel, Switzerland
| | - Michael A Nash
- Institute of Physical Chemistry, Department of Chemistry, University of Basel, 4058, Basel, Switzerland.
- Department of Biosystems Science and Engineering, ETH Zurich, 4058, Basel, Switzerland.
- National Center for Competence in Research (NCCR), Molecular Systems Engineering, 4058, Basel, Switzerland.
- Swiss Nanoscience Institute, 4056, Basel, Switzerland.
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3
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Wang LY, Tang H, Zhao JQ, Wang MN, Xue YP, Zheng YG. Correlation Analysis of Key Residue Sites between Computational-Aided Design Thermostability d-Amino Acid Oxidase and Ancestral Enzymes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:20177-20186. [PMID: 38064545 DOI: 10.1021/acs.jafc.3c06865] [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: 12/21/2023]
Abstract
The d-amino acid oxidase (DAAO) from Rhodotorula taiwanensis has proven to have great potential for applications due to its excellent catalytic kinetic parameters. However, its poor thermal stability has limited its performance in biocatalysis. Herein, starting from the variant SHVG of RtwDAAO, this study employed a comprehensive computational design approach for protein stability engineering, resulting in positive substitutions at specific sites (A43S, T45M, C234L, E195Y). The generated variant combination, SHVG/SMLY, exhibited a significant synergistic effect, leading to an extension of the half-life and Tmapp. The ancestral sequence reconstruction revealed the conservation of the variant sites. The association of the variant sites with the highly stable ancestral enzyme was further explored. After determining the contribution of the variant sites to thermal stability, it was applied to other homologous sequences and validated. Molecular dynamics simulations indicated that the increased hydrophobicity of the variant SHVG/SMLY was a key factor for the increased stability, with strengthened intersubunit interactions playing an important role. In addition, the physical properties of the amino acids themselves were identified as crucial factors for thermal stability generality in homologous enzymes, which is important for the rapid acquisition of a series of stable enzymes.
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Affiliation(s)
- Liu-Yu Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Heng Tang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Jin-Qiao Zhao
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Meng-Nan Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Ya-Ping Xue
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yu-Guo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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4
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Carballares D, Fernandez-Lafuente R, Rocha-Martin J. Immobilization-stabilization of the dimeric D-amino acid oxidase from porcine kidney. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Chen XW, Rao L, Chen JL, Zou Y. Unexpected assembly machinery for 4(3H)-quinazolinone scaffold synthesis. Nat Commun 2022; 13:6522. [PMID: 36316336 PMCID: PMC9622831 DOI: 10.1038/s41467-022-34340-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
4(3H)-quinazolinone is the core scaffold in more than 200 natural alkaloids and numerous drugs. Many chemosynthetic methodologies have been developed to generate it; however, investigation of its native enzymatic formation mechanism in fungi has been largely limited to fumiquinazolines, where the two nitrogen atoms come from anthranilate (N-1) and the α-NH2 of amino acids (N-3). Here, via biochemical investigation of the chrysogine pathway, unexpected assembly machinery for 4(3H)-quinazolinone is unveiled, which involves a fungal two-module nonribosomal peptide synthase ftChyA with an unusual terminal condensation domain catalysing tripeptide formation; reveals that N-3 originates from the inorganic ammonium ions or the amide of L-Gln; demonstrates an unusual α-ketoglutarate-dependent dioxygenase ftChyM catalysis of the C-N bond oxidative cleavage of a tripeptide to form a dipeptide. Our study uncovers a unique release and tailoring mechanism for nonribosomal peptides and an alternative route for the synthesis of 4(3H)-quinazolinone scaffolds.
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Affiliation(s)
- Xi-Wei Chen
- grid.263906.80000 0001 0362 4044College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715 P. R. China
| | - Li Rao
- grid.263906.80000 0001 0362 4044College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715 P. R. China
| | - Jia-Li Chen
- grid.263906.80000 0001 0362 4044College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715 P. R. China
| | - Yi Zou
- grid.263906.80000 0001 0362 4044College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715 P. R. China
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6
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Atroshenko DL, Golovina DI, Sergeev EP, Shelomov MD, Elcheninov AG, Kublanov IV, Chubar TA, Pometun AA, Savin SS, Tishkov VI. Bioinformatics-Structural Approach to the Search for New D-Amino Acid Oxidases. Acta Naturae 2022; 14:57-68. [PMID: 36694899 PMCID: PMC9844085 DOI: 10.32607/actanaturae.11812] [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: 08/22/2022] [Accepted: 09/29/2022] [Indexed: 01/22/2023] Open
Abstract
D-amino acid oxidase (DAAO, EC 1.2.1.2) plays an important role in the functioning of prokaryotes as well as of lower (yeast and fungi) and higher eukaryotes (mammals). DAAO genes have not yet been found in archaean genomes. D-amino acid oxidase is increasingly used in various fields, which requires the development of new variants of the enzyme with specific properties. However, even within one related group (bacteria, yeasts and fungi, mammals), DAAOs show very low homology between amino acid sequences. In particular, this fact is clearly observed in the case of DAAO from bacteria. The high variability in the primary structures of DAAO severely limits the search for new enzymes in known genomes. As a result, many (if not most) DAAO genes remain either unannotated or incorrectly annotated. We propose an approach that uses bioinformatic methods in combination with general 3D structure and active center structure analysis to confirm that the gene found encodes D-amino acid oxidase and to predict the possible type of its substrate specificity. Using a homology search, we obtained a set of candidate sequences, modelled the tertiary structure of the selected enzymes, and compared them with experimental and model structures of known DAAOs. The effectiveness of the proposed approach for discrimination of DAAOs and glycine oxidases is shown. Using this approach, new DAAO genes were found in the genomes of six strains of extremophilic bacteria, and for the first time in the world, one gene was identified in the genome of halophilic archaea. Preliminary experiments confirmed the predicted specificity of DAAO from Natronosporangium hydrolyticum ACPA39 with D-Leu and D-Phe.
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Affiliation(s)
- D. L. Atroshenko
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991 Russia
- Federal Research Centre “Fundamentals of Biotechnology” of RAS, Moscow, 119071 Russia
| | - D. I. Golovina
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991 Russia
| | - E. P. Sergeev
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991 Russia
| | - M. D. Shelomov
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991 Russia
| | - A. G. Elcheninov
- Federal Research Centre “Fundamentals of Biotechnology” of RAS, Moscow, 119071 Russia
| | - I. V. Kublanov
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991 Russia
- Federal Research Centre “Fundamentals of Biotechnology” of RAS, Moscow, 119071 Russia
| | - T. A. Chubar
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991 Russia
| | - A. A. Pometun
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991 Russia
- Federal Research Centre “Fundamentals of Biotechnology” of RAS, Moscow, 119071 Russia
| | - S. S. Savin
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991 Russia
| | - V. I. Tishkov
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991 Russia
- Federal Research Centre “Fundamentals of Biotechnology” of RAS, Moscow, 119071 Russia
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7
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The Stability of Dimeric D-amino Acid Oxidase from Porcine Kidney Strongly Depends on the Buffer Nature and Concentration. Catalysts 2022. [DOI: 10.3390/catal12091009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The first step of the inactivation of the enzyme D-amino acid oxidase (DAAO) from porcine kidney at pH 5 and 7 is the enzyme subunit dissociation, while FAD dissociation has not a relevant role. At pH 9, both dissociation phenomena affect the enzyme stability. A strong effect of the buffer nature and concentration on enzyme stability was found, mainly at pH 7 and 9 (it was possible at the same temperature to have the enzyme fully inactivated in 5 mM of Hepes while maintaining 100% in 5 mM of glycine). The effect of the concentration of buffer on enzyme stability depended on the buffer: at pH 5, the acetate buffer had no clear effect, while Tris, Hepes and glycine (at pH 7) and carbonate (at pH 9) decreased enzyme stability when increasing their concentrations; phosphate concentration had the opposite effect. The presence of 250 mM of NaCl usually increased enzyme stability, but this did not occur in all cases. The effects were usually more significant when using low concentrations of DAAO and were not reverted upon adding exogenous FAD. However, when using an immobilized DAAO biocatalyst which presented enzyme subunits attached to the support, where dissociation was not possible, this effect of the buffer nature on enzyme stability almost disappeared. This suggested that the buffers were somehow altering the association/dissociation equilibrium of the enzyme.
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8
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Lee CJ, Qiu TA, Hong Z, Zhang Z, Min Y, Zhang L, Dai L, Zhao H, Si T, Sweedler JV. Profiling of d-alanine production by the microbial isolates of rat gut microbiota. FASEB J 2022; 36:e22446. [PMID: 35816159 DOI: 10.1096/fj.202101595r] [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: 11/03/2021] [Revised: 06/07/2022] [Accepted: 06/27/2022] [Indexed: 11/11/2022]
Abstract
d-alanine (d-Ala) and several other d-amino acids (d-AAs) act as hormones and neuromodulators in nervous and endocrine systems. Unlike the endogenously synthesized d-serine in animals, d-Ala may be from exogenous sources, e.g., diet and intestinal microorganisms. However, it is unclear if the capability to produce d-Ala and other d-AAs varies among different microbial strains in the gut. We isolated individual microorganisms of rat gut microbiota and profiled their d-AA production in vitro, focusing on d-Ala. Serial dilutions of intestinal contents from adult male rats were plated on agar to obtain clonal cultures. Using MALDI-TOF MS for rapid strain typing, we identified 38 unique isolates, grouped into 11 species based on 16S rRNA gene sequences. We then used two-tier screening to profile bacterial d-AA production, combining a d-amino acid oxidase-based enzymatic assay for rapid assessment of non-acidic d-AA amount and chiral LC-MS/MS to quantify individual d-AAs, revealing 19 out of the 38 isolated strains as d-AA producers. LC-MS/MS analysis of the eight top d-AA producers showed high levels of d-Ala in all strains tested, with substantial inter- and intra-species variations. Though results from the enzymatic assay and LC-MS/MS analysis aligned well, LC-MS/MS further revealed the existence of d-glutamate and d-aspartate, which are poor substrates for this enzymatic assay. We observed large inter- and intra-species variation of d-AA production profiles from rat gut microbiome species, demonstrating the importance of chemical profiling of gut microbiota in addition to sequencing, furthering the idea that microbial metabolites modulate host physiology.
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Affiliation(s)
- Cindy J Lee
- Department of Chemistry, Carl R. Woese Institute for Genomic Biology, and the Beckman Institute, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Tian A Qiu
- Department of Chemistry, Carl R. Woese Institute for Genomic Biology, and the Beckman Institute, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Zhilai Hong
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Zhenkun Zhang
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yuhao Min
- Department of Chemistry, Carl R. Woese Institute for Genomic Biology, and the Beckman Institute, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Linzixuan Zhang
- Department of Chemistry, Carl R. Woese Institute for Genomic Biology, and the Beckman Institute, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Lei Dai
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Huimin Zhao
- Department of Chemistry, Carl R. Woese Institute for Genomic Biology, and the Beckman Institute, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Tong Si
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jonathan V Sweedler
- Department of Chemistry, Carl R. Woese Institute for Genomic Biology, and the Beckman Institute, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
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9
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Boreggio M, Rosini E, Gambarotti C, Pollegioni L, Fasoli E. Unveiling the Bio-corona Fingerprinting of Potential Anticancer Carbon Nanotubes Coupled with D-Amino Acid Oxidase. Mol Biotechnol 2022; 64:1164-1176. [PMID: 35467257 PMCID: PMC9411096 DOI: 10.1007/s12033-022-00488-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 03/31/2022] [Indexed: 11/27/2022]
Abstract
The oxidation therapy, based on the controlled production of Reactive Oxygen Species directly into the tumor site, was introduced as alternative antitumor approach. For this purpose, d-amino acid oxidase (DAAO) from the yeast Rhodotorula gracilis, an enzyme able to efficiently catalyze the production of hydrogen peroxide from d-amino acids, was adsorbed onto multi-walled carbon nanotubes (MWCNTs), previously functionalized with polylactic-co-glycolic acid (PLGA) or polyethylene glycol (PEG) at different degrees to reduce their toxicity, to be targeted directly into the tumor. In vitro activity and cytotoxicity assays demonstrated that DAAO-functionalized nanotubes (f-MWCNTs) produced H2O2 and induced toxic effects to selected tumor cell lines. After incubation in human plasma, the protein corona was investigated by SDS-PAGE and mass spectrometry analysis. The enzyme nanocarriers generally seemed to favor their biocompatibility, promoting the interaction with dysopsonins. Despite this, PLGA or high degree of PEGylation promoted the adsorption of immunoglobulins with a possible activation of immune response and this effect was probably due to PLGA hydrophobicity and dimensions and to the production of specific antibodies against PEG. In conclusion, the PEGylated MWCNTs at low degree seemed the most biocompatible nanocarrier for adsorbed DAAO, preserving its anticancer activity and forming a bio-corona able to reduce both defensive responses and blood clearance.
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Affiliation(s)
- Marta Boreggio
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milan, Italy
| | - Elena Rosini
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100, Varèse, Italy
| | - Cristian Gambarotti
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milan, Italy
| | - Loredano Pollegioni
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100, Varèse, Italy
| | - Elisa Fasoli
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milan, Italy.
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10
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Wied P, Carraro F, Bolivar JM, Doonan CJ, Falcaro P, Nidetzky B. Combining a Genetically Engineered Oxidase with Hydrogen-Bonded Organic Frameworks (HOFs) for Highly Efficient Biocomposites. Angew Chem Int Ed Engl 2022; 61:e202117345. [PMID: 35038217 PMCID: PMC9305891 DOI: 10.1002/anie.202117345] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Indexed: 12/16/2022]
Abstract
Enzymes incorporated into hydrogen‐bonded organic frameworks (HOFs) via bottom‐up synthesis are promising biocomposites for applications in catalysis and sensing. Here, we explored synthetic incorporation of d‐amino acid oxidase (DAAO) with the metal‐free tetraamidine/tetracarboxylate‐based BioHOF‐1 in water. N‐terminal enzyme fusion with the positively charged module Zbasic2 strongly boosted the loading (2.5‐fold; ≈500 mg enzyme gmaterial−1) and the specific activity (6.5‐fold; 23 U mg−1). The DAAO@BioHOF‐1 composites showed superior activity with respect to every reported carrier for the same enzyme and excellent stability during catalyst recycling. Further, extension to other enzymes, including cytochrome P450 BM3 (used in the production of high‐value oxyfunctionalized compounds), points to the versatility of genetic engineering as a strategy for the preparation of biohybrid systems with unprecedented properties.
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Affiliation(s)
- Peter Wied
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, Petersgasse 12/1, 8010, Graz, Austria.,Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9/Z2, 8010, Graz, Austria
| | - Francesco Carraro
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9/Z2, 8010, Graz, Austria
| | - Juan M Bolivar
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, Petersgasse 12/1, 8010, Graz, Austria
| | - Christian J Doonan
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Paolo Falcaro
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9/Z2, 8010, Graz, Austria
| | - Bernd Nidetzky
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, Petersgasse 12/1, 8010, Graz, Austria
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11
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Wied P, Carraro F, Bolivar JM, Doonan CJ, Falcaro P, Nidetzky B. Combining Genetically Engineered Oxidase with Hydrogen Bonded Organic Framework (HOF) for Highly Efficient Biocomposites. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Peter Wied
- Graz University of Technology: Technische Universitat Graz Biotechnology and Biochemical Engineering AUSTRIA
| | - Francesco Carraro
- Graz University of Technology: Technische Universitat Graz Physical Chemistry AUSTRIA
| | - Juan M. Bolivar
- Complutense University of Madrid: Universidad Complutense de Madrid Biochemical Engineering SPAIN
| | - Christian J. Doonan
- University of Adelaide Press: The University of Adelaide Chemistry AUSTRALIA
| | - Paolo Falcaro
- Graz University of Technology: Technische Universitat Graz Physical Chemistry AUSTRIA
| | - Bernd Nidetzky
- Biotechnology and Biochemical Engineering Graz University of Technology Petersgasse 12 8010 Graz AUSTRIA
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12
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Steinhorn B, Eroglu E, Michel T. Chemogenetic Approaches to Probe Redox Pathways: Implications for Cardiovascular Pharmacology and Toxicology. Annu Rev Pharmacol Toxicol 2022; 62:551-571. [PMID: 34530645 PMCID: PMC10507364 DOI: 10.1146/annurev-pharmtox-012221-082339] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Chemogenetics refers to experimental systems that dynamically regulate the activity of a recombinant protein by providing or withholding the protein's specific biochemical stimulus. Chemogenetic tools permit precise dynamic control of specific signaling molecules to delineate the roles of those molecules in physiology and disease. Yeast d-amino acid oxidase (DAAO) enables chemogenetic manipulation of intracellular redox balance by generating hydrogen peroxide only in the presence of d-amino acids. Advances in biosensors have allowed the precise quantitation of these signaling molecules. The combination of chemogenetic approaches with biosensor methodologies has opened up new lines of investigation, allowing the analysis of intracellular redox pathways that modulate physiological and pathological cell responses. We anticipate that newly developed transgenic chemogenetic models will permit dynamic modulation of cellularredox balance in diverse cells and tissues and will facilitate the identification and validation of novel therapeutic targets involved in both physiological redox pathways and pathological oxidative stress.
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Affiliation(s)
- Benjamin Steinhorn
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Emrah Eroglu
- Genetics and Bioengineering Program, Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul 34956, Turkey
- Department of Molecular Biology and Biochemistry, Medical University of Graz, 8036 Graz, Austria
| | - Thomas Michel
- Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA;
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Han J, Lyutenko NV, Sorochinsky AE, Okawara A, Konno H, White S, Soloshonok VA. Tailor-Made Amino Acids in Pharmaceutical Industry: Synthetic Approaches to Aza-Tryptophan Derivatives. Chemistry 2021; 27:17510-17528. [PMID: 34913215 DOI: 10.1002/chem.202102485] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/24/2021] [Indexed: 12/22/2022]
Abstract
Over the recent years there has been a noticeable upsurge of interest in aza-analogs of tryptophan which are isosteric to the latter and found numerous applications in medicinal, bioorganic chemistry, and peptide research. In the present review article, five aza-tryptophan derivatives are profiled, including aza-substitution in the positions 2, on the five-membered ring, as well as in positions 4, 5, 6, and 7 on the six-membered ring. A detailed and comprehensive literature overview of the synthetic methods for the preparation of these aza-tryptophans is presented and general facets of the biological properties and most promising applications are discussed.
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Affiliation(s)
- Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Nataliya V Lyutenko
- Department of Fine Organic Synthesis V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, The National Academy of Sciences of Ukraine, 1 Murmanska str., Kyiv, 02094, Ukraine
| | - Alexander E Sorochinsky
- Department of Fine Organic Synthesis V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, The National Academy of Sciences of Ukraine, 1 Murmanska str., Kyiv, 02094, Ukraine
| | - Ayaka Okawara
- Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Hiroyuki Konno
- Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Sarah White
- Oakwood Chemical, Inc., 730 Columbia Hwy. N, Estill, SC, 29918, USA
| | - Vadim A Soloshonok
- Department of Organic Chemistry I Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018, San Sebastián, Spain.,IKERBASQUE, Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013, Bilbao, Spain
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14
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Waldeck-Weiermair M, Yadav S, Spyropoulos F, Krüger C, Pandey AK, Michel T. Dissecting in vivo and in vitro redox responses using chemogenetics. Free Radic Biol Med 2021; 177:360-369. [PMID: 34752919 PMCID: PMC8639655 DOI: 10.1016/j.freeradbiomed.2021.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/08/2021] [Accepted: 11/04/2021] [Indexed: 02/03/2023]
Abstract
Hydrogen peroxide (H2O2) is the most abundant reactive oxygen species (ROS) within mammalian cells. At low concentrations, H2O2 serves as a versatile cell signaling molecule that mediates vital physiological functions. Yet at higher concentrations, H2O2 can be a toxic molecule by promoting pathological oxidative stress in cells and tissues. Within normal cells, H2O2 is differentially distributed in a variety of subcellular locales. Moreover, many redox-active enzymes and their substrates are themselves differentially distributed within cells. Numerous reports have described the biological and biochemical consequences of adding exogenous H2O2 to cultured cells and tissues, but many of these observations are difficult to interpret: the effects of exogenous H2O2 do not necessarily replicate the cellular responses to endogenous H2O2. In recent years, chemogenetic approaches have been developed to dynamically regulate the abundance of H2O2 in specific subcellular locales. Chemogenetic approaches have been applied in multiple experimental systems, ranging from in vitro studies on the intracellular transport and metabolism of H2O2, all the way to in vivo studies that generate oxidative stress in specific organs in living animals. These chemogenetic approaches have exploited a yeast-derived d-amino acid oxidase (DAAO) that synthesizes H2O2 only in the presence of its d-amino acid substrate. DAAO can be targeted to various subcellular locales, and can be dynamically activated by the addition or withdrawal of its d-amino acid substrate. In addition, recent advances in the development of highly sensitive genetically encoded H2O2 biosensors are providing a better understanding of both physiological and pathological oxidative pathways. This review highlights several applications of DAAO as a chemogenetic tool across a wide range of biological systems, from analyses of subcellular H2O2 metabolism in cells to the development of new disease models caused by oxidative stress in vivo.
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Affiliation(s)
- Markus Waldeck-Weiermair
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA; Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010, Graz, Austria
| | - Shambhu Yadav
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Fotios Spyropoulos
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA; Department of Pediatric Newborn Medicine, Harvard Medical School, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, USA
| | - Christina Krüger
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Arvind K Pandey
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Thomas Michel
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA.
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15
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Nascimento ÍF, Guimarães ATB, Ribeiro F, Rodrigues ASDL, Estrela FN, Luz TMD, Malafaia G. Polyethylene glycol acute and sub-lethal toxicity in neotropical Physalaemus cuvieri tadpoles (Anura, Leptodactylidae). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 283:117054. [PMID: 33848902 DOI: 10.1016/j.envpol.2021.117054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/25/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
Although many polymers are known by their toxicity, we know nothing about the impact of polyethylene glycol (PEG) on anurofauna. Its presence in different products and disposal in aquatic environments turn assessments about its impact on amphibians an urgent matter. Accordingly, we tested the hypothesis that short-time exposure (72 h) of tadpoles belonging to the species Physalaemus cuvieri (Anura, Leptodactylidae) to PEG induces oxidative stress and neurotoxicity on them. We observed that polymer uptake in P. cuvieri occurred after exposure to 5 and 10 mg/L of PEG without inducing changes in their nitrite levels neither at the levels of substances reactive to thiobarbituric acid. However, hydrogen peroxide and reactive oxygen species production was higher in animals exposed to PEG, whose catalase and superoxide dismutase levels were not enough to counterbalance the production of these reactive species. Therefore, this finding suggests physiological changes altering REDOX homeostasis into oxidative stress. In addition, the increased activity of acetylcholinesterase and butyrylcholinesterase, and reduction in superficial neuromasts, confirmed PEG's neurotoxic potential. To the best of our knowledge, this is the first report on PEG's biological impact on a particular amphibian species. The study has broadened the understanding about ecotoxicological risks associated with water pollution by these polymers, as well as motivated further investigations on its impacts on amphibians' health and on the dynamics of their natural populations.
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Affiliation(s)
| | - Abraão Tiago Batista Guimarães
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Fabianne Ribeiro
- Department of Biology & CESAM - Center for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | | | - Fernanda Neves Estrela
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Thiarlen Marinho da Luz
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Graduate Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology and Natural Resources Conservation, Uberlândia, MG, Brazil.
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16
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Smolyarova DD, Podgorny OV, Bilan DS, Belousov VV. A guide to genetically encoded tools for the study of H 2 O 2. FEBS J 2021; 289:5382-5395. [PMID: 34173331 DOI: 10.1111/febs.16088] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 04/23/2021] [Accepted: 06/24/2021] [Indexed: 01/09/2023]
Abstract
Cell metabolism heavily relies on the redox reactions that inevitably generate reactive oxygen species (ROS). It is now well established that ROS fluctuations near basal levels coordinate numerous physiological processes in living organisms, thus exhibiting regulatory functions. Hydrogen peroxide, the most long-lived ROS, is a key contributor to ROS-dependent signal transduction in the cell. H2 O2 is known to impact various targets in the cell; therefore, the question of how H2 O2 modulates physiological processes in a highly specific manner is central in redox biology. To resolve this question, novel genetic tools have recently been created for detecting H2 O2 and emulating its generation in living organisms with unmatched spatiotemporal resolution. Here, we review H2 O2 -sensitive genetically encoded fluorescent sensors and opto- and chemogenetic tools for controlled H2 O2 generation.
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Affiliation(s)
- Daria D Smolyarova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.,Faculty of Biology, Lomonosov Moscow State University, Russia
| | - Oleg V Podgorny
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.,Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, Moscow, Russia.,Laboratory of Experimental Oncology, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Dmitry S Bilan
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.,Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, Moscow, Russia.,Laboratory of Experimental Oncology, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Vsevolod V Belousov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.,Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, Moscow, Russia.,Laboratory of Experimental Oncology, Pirogov Russian National Research Medical University, Moscow, Russia.,Federal Center of Brain Research and Neurotechnologies of the Federal Medical Biological Agency, Moscow, Russia.,Institute for Cardiovascular Physiology, Georg August University Göttingen, Germany
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17
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Rosini E, Volpi NA, Ziffels B, Grimaldi A, Sacchi S, Neri D, Pollegioni L. An antibody-based enzymatic therapy for cancer treatment: The selective localization of D-amino acid oxidase to EDA fibronectin. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 36:102424. [PMID: 34174417 DOI: 10.1016/j.nano.2021.102424] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 04/12/2021] [Accepted: 05/27/2021] [Indexed: 12/25/2022]
Abstract
In order to generate an antibody directed enzyme prodrug therapy, here we designed a chimeric protein by fusing the F8 antibody that recognizes the EDA of fibronectin (expressed on the tumor neovasculature) and an evolved variant of the ROS-generating enzyme D-amino acid oxidase (DAAO). The F8(scFv)-DAAO-Q144R recombinant protein is expressed by both CHO-S and E. coli cells. The F8(scFv)-DAAO-Q144R from E. coli cells is fully soluble, shows a high specific activity, is more thermostable in blood than the native DAAO, possesses a binding affinity for EDA well suited for efficient tumor accumulation, and localizes in tumor tissues. Notably, the F8(scFv)-DAAO-Q144R conjugate generates a stronger cytotoxicity to tumor cells than the native enzyme, especially when an inhibitor of heme oxygenase-1 (HO-1) is used, making it a promising candidate for a selective antitumor oxidative therapy controlled by the substrate addition, in the so called "activity on demand", thus sparing normal tissue from damage.
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Affiliation(s)
- Elena Rosini
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.
| | - Noemi Antonella Volpi
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Barbara Ziffels
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Annalisa Grimaldi
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Silvia Sacchi
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Dario Neri
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Loredano Pollegioni
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
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18
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Guimarães ATB, Estrela FN, Rodrigues ASDL, Nóbrega RH, Charlie-Silva I, Malafaia G. Can carbon nanofibers affect anurofauna? Study involving neotropical Physalaemus cuvieri (Fitzinger, 1826) tadpoles. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 233:105795. [PMID: 33677260 DOI: 10.1016/j.aquatox.2021.105795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
Although carbon nanotubes' (CNTs) toxicity in different experimental systems (in vivo and in vitro) is known, little is known about the toxic effects of carbon nanofibers (CNFs) on aquatic vertebrates. We herein investigated the potential impact of CNFs (1 and 10 mg/L) by using Physalaemus cuvieri tadpoles as experimental model. CNFs were able to induce nutritional deficit in animals after 48-h exposure to them, and this finding was inferred by reductions observed in body concentrations of total soluble carbohydrates, total proteins, and triglycerides. The increased production of hydrogen peroxide, reactive oxygen species and thiobarbituric acid reactive substances in tadpoles exposed to CNFs has suggested REDOX homeostasis change into oxidative stress. This process was correlated to the largest number of apoptotic and necrotic cells in the blood of these animals. On the other hand, the increased superoxide dismutase and catalase activity has suggested that the antioxidant system of animals exposed to CNFs was not enough to maintain REDOX balance. In addition, CNFs induced increase in acetylcholinesterase and butyrylcholinesterase activity, as well as changes in the number of neuromasts evaluated on body surface (which is indicative of the neurotoxic effect of nanomaterials on the assessed model system). To the best of our knowledge, this is the first report on the impact of CNFs on amphibians; therefore, it broadened our understanding about ecotoxicological risks associated with their dispersion in freshwater ecosystems and possible contribution to the decline in the populations of anurofauna species.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, Brazil
| | - Fernanda Neves Estrela
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, Brazil
| | | | - Rafael Henrique Nóbrega
- Reproductive and Molecular Biology Group, Morphology Department, São Paulo State University, Botucatu, Brazil
| | - Ives Charlie-Silva
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, Brazil; Post-Graduation Program in Cerrado Natural Resources Conservation, Goiano Federal University - Urutaí Campus, Urutaí, Brazil; Post-Graduation Program in Ecology and Natural Resources Conservation, Federal University of Uberlândia, Uberlândia, Brazil.
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19
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Using D- and L-Amino Acid Oxidases to Generate the Imino Acid Substrate to Measure the Activity of the Novel Rid (Enamine/Imine Deaminase) Class of Enzymes. Methods Mol Biol 2021. [PMID: 33751437 DOI: 10.1007/978-1-0716-1286-6_13] [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: 07/30/2023]
Abstract
This chapter describes a method to assay the activity of reactive intermediate deaminases (Rid), a large family of conserved soluble enzymes, which have been proposed to prevent damages from metabolic intermediates such as the highly reactive and unstable compounds enamines/imines. In this method, the flavin adenine dinucleotide-dependent L- or D-amino acid oxidases generate an imino acid starting from a L- or D- amino acid, respectively. This reaction is coupled to the hydrolysis of the imino acid to the corresponding α-keto acid and ammonium ion catalyzed by a Rid enzyme. The spectrophotometric assay consists of measuring the decrease of the initial rate of formation of the semicarbazone, derived from the spontaneous reaction of the imino acid and semicarbazide, caused by the presence of the Rid enzyme. The set-up and testing of this method imply a preliminary characterization of the ability of the amino acid oxidase to release the imino acid required for the subsequent reactions. To this purpose, the activity of the L- or D-amino acid oxidases with different amino acids can be measured as production of hydrogen peroxide or formation of semicarbazone in parallel assays. The advantages and limitations of this assay of Rid activity are discussed.
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20
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Xu JM, Cao HT, Wang M, Ma BJ, Wang LY, Zhang K, Cheng F, Xue YP, Zheng YG. Development of a Combination Fermentation Strategy to Simultaneously Increase Biomass and Enzyme Activity of D-amino Acid Oxidase Expressed in Escherichia coli. Appl Biochem Biotechnol 2021; 193:2029-2042. [PMID: 33538962 DOI: 10.1007/s12010-021-03519-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/27/2021] [Indexed: 12/13/2022]
Abstract
D-amino acid oxidase (DAAO) is widely used in the industrial preparation of L-amino acids, and cultivating Escherichia coli (E. coli) expressing DAAO for the biosynthesis of L-phosphinothricin (L-PPT) is very attractive. At present, the biomass production of DAAO by fermentation is still limited in large-scale industrial applications because the expression of DAAO during the fermentation process inhibits the growth of host cells, which limits higher cell density. In this study, the factors that inhibit the growth of bacterial cells during a 5-L fed-batch fermentation process were explored, and the fermentation process was optimized by co-expressing catalase (CAT), by balancing the biomass and the enzyme activity, and by adding exogenous D-alanine (D-Ala) to relieve the limitation of DAAO on the cells and optimize fermentation. Under optimal conditions, the DO-STAT feeding mode with DO controlled at 30% ± 5% and the addition of 27.5 g/L lactose mixed with 2 g/L D-Ala during induction at 28 °C resulted in the production of 26.03 g dry cell weight (DCW)/L biomass and 390.0 U/g DCW specific activity of DAAO; an increase of 78% and 84%, respectively, compared with the initial fermentation conditions. The fermentation strategy was successfully scale-up to a 5000-L fermenter.
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Affiliation(s)
- Jian-Miao Xu
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Hui-Ting Cao
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Ming Wang
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Bao-Jian Ma
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Liu-Yu Wang
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Kai Zhang
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Feng Cheng
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Ya-Ping Xue
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China. .,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China. .,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.
| | - Yu-Guo Zheng
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
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21
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Fuentes-Baile M, Pérez-Valenciano E, García-Morales P, de Juan Romero C, Bello-Gil D, Barberá VM, Rodríguez-Lescure Á, Sanz JM, Alenda C, Saceda M. CLytA-DAAO Chimeric Enzyme Bound to Magnetic Nanoparticles. A New Therapeutical Approach for Cancer Patients? Int J Mol Sci 2021; 22:1477. [PMID: 33540681 PMCID: PMC7867295 DOI: 10.3390/ijms22031477] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/26/2021] [Accepted: 01/29/2021] [Indexed: 02/01/2023] Open
Abstract
D-amino acid oxidase (DAAO) is an enzyme that catalyzes the oxidation of D-amino acids generating H2O2. The enzymatic chimera formed by DAAO bound to the choline-binding domain of N-acetylmuramoyl-L-alanine amidase (CLytA) induces cytotoxicity in several pancreatic and colorectal carcinoma and glioblastoma cell models. In the current work, we determined whether the effect of CLytA-DAAO immobilized in magnetic nanoparticles, gold nanoparticles, and alginate capsules offered some advantages as compared to the free CLytA-DAAO. Results indicate that the immobilization of CLytA-DAAO in magnetic nanoparticles increases the stability of the enzyme, extending its time of action. Besides, we compared the effect induced by CLytA-DAAO with the direct addition of hydrogen peroxide, demonstrating that the progressive generation of reactive oxygen species by CLytA-DAAO is more effective in inducing cytotoxicity than the direct addition of H2O2. Furthermore, a pilot study has been initiated in biopsies obtained from pancreatic and colorectal carcinoma and glioblastoma patients to evaluate the expression of the main genes involved in resistance to CLytA-DAAO cytotoxicity. Based on our findings, we propose that CLytA-DAAO immobilized in magnetic nanoparticles could be effective in a high percentage of patients and, therefore, be used as an anti-cancer therapy for pancreatic and colorectal carcinoma and glioblastoma.
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Affiliation(s)
- María Fuentes-Baile
- Unidad de Investigación, Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (FISABIO), Hospital General Universitario de Elche, Camí de l’Almazara 11, Elche, 03203 Alicante, Spain; (M.F.-B.); (C.d.J.R.); (V.M.B.)
| | - Elizabeth Pérez-Valenciano
- Departamento de Bioquímica y Biología Molecular, Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández, Avda, Universidad s/n, Ed. Torregaitán, Elche, 03202 Alicante, Spain; (E.P.-V.); (P.G.-M.); (D.B.-G.)
| | - Pilar García-Morales
- Departamento de Bioquímica y Biología Molecular, Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández, Avda, Universidad s/n, Ed. Torregaitán, Elche, 03202 Alicante, Spain; (E.P.-V.); (P.G.-M.); (D.B.-G.)
| | - Camino de Juan Romero
- Unidad de Investigación, Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (FISABIO), Hospital General Universitario de Elche, Camí de l’Almazara 11, Elche, 03203 Alicante, Spain; (M.F.-B.); (C.d.J.R.); (V.M.B.)
- Departamento de Bioquímica y Biología Molecular, Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández, Avda, Universidad s/n, Ed. Torregaitán, Elche, 03202 Alicante, Spain; (E.P.-V.); (P.G.-M.); (D.B.-G.)
| | - Daniel Bello-Gil
- Departamento de Bioquímica y Biología Molecular, Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández, Avda, Universidad s/n, Ed. Torregaitán, Elche, 03202 Alicante, Spain; (E.P.-V.); (P.G.-M.); (D.B.-G.)
| | - Víctor M. Barberá
- Unidad de Investigación, Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (FISABIO), Hospital General Universitario de Elche, Camí de l’Almazara 11, Elche, 03203 Alicante, Spain; (M.F.-B.); (C.d.J.R.); (V.M.B.)
- Unidad de Genética Molecular, Hospital General Universitario de Elche, Camí de l’Almazara 11, Elche, 03203 Alicante, Spain
| | | | - Jesús M. Sanz
- Centro de Investigaciones Biológicas Margarita Salas (Consejo Superior de Investigaciones Científicas) and Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), C/Ramiro de Maeztu, 9, 28040 Madrid, Spain;
| | - Cristina Alenda
- Unidad de Investigación, Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Hospital General Universitario de Alicante, C/Maestro Alonso, 10, 03010 Alicante, Spain;
| | - Miguel Saceda
- Unidad de Investigación, Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunidad Valenciana (FISABIO), Hospital General Universitario de Elche, Camí de l’Almazara 11, Elche, 03203 Alicante, Spain; (M.F.-B.); (C.d.J.R.); (V.M.B.)
- Departamento de Bioquímica y Biología Molecular, Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández, Avda, Universidad s/n, Ed. Torregaitán, Elche, 03202 Alicante, Spain; (E.P.-V.); (P.G.-M.); (D.B.-G.)
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22
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Ancestral L-amino acid oxidases for deracemization and stereoinversion of amino acids. Commun Chem 2020; 3:181. [PMID: 36703379 PMCID: PMC9814856 DOI: 10.1038/s42004-020-00432-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/10/2020] [Indexed: 01/29/2023] Open
Abstract
L-amino acid oxidases (LAAOs) can be applied to convert racemic amino acids to D-isomers, which are potential precursors of pharmaceuticals. However, this application is hampered by the lack of available stable and structure-determined LAAOs. In this study, we attempt to address this limitation by utilizing two ancestral LAAOs: AncLAAO-N4 and AncLAAO-N5. AncLAAO-N4 has the highest thermal and temporal stabilities among the designed LAAOs that can be used for deracemization and stereoinversion. AncLAAO-N5 can provide X-ray crystal structures, which are helpful to reveal substrate recognition and reaction mechanisms of LAAOs at the molecular level. Next, we attempted to improve activity of AncLAAO-N4 toward L-Val through a semi-rational protein engineering method. Three variants with enhanced activity toward L-Val were obtained. Taken together, we believe that the activity and substrate selectivity of AncLAAOs give them the potential to be key enzymes in various chemoenzymatic reactions.
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23
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Oike K, Gröger H. Process properties of an l-amino acid oxidase from Hebeloma cylindrosporum for the synthesis of phenylpyruvic acid from l-phenylalanine. J Biotechnol 2020; 323:203-207. [PMID: 32653636 DOI: 10.1016/j.jbiotec.2020.07.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/18/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
Abstract
The biocatalytic oxidation of amino acids represents an attractive approach towards the synthesis of α-keto acids, which are interest for various industrial applications. As l-amino acids are readily available from fermentation processes, these natural amino acids can serve as substrates in combination with an l-amino acid oxidase. Besides an aqueous phase as reaction medium, a further advantage of such a process is the utilization of air as oxidation agent. In this study, we studied the organic-synthetic properties of a literature-known recombinant l-amino acid oxidase from the fungus Hebeloma cylindrosporum with respect to its suitability to catalyze the formation of α-keto acids exemplified for the synthesis of phenylpyruvic acid starting from l-phenylalanine as a substrate. In our study the enzyme displayed a reasonable operational stability in the reaction system and as well as promising applicability data with respect to substrate and product inhibition. In a biotransformation, 20 mM of substrate were converted after 4 h reaction. The formation of undesired by-products was suppressed using a commercially available catalase enzyme.
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Affiliation(s)
- Keiko Oike
- Chair of Industrial Organic Chemistry and Biotechnology, Faculty of Chemistry, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Harald Gröger
- Chair of Industrial Organic Chemistry and Biotechnology, Faculty of Chemistry, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany.
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24
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Qin Y, Wu G, Guo Y, Ke D, Yin J, Wang D, Fan X, Liu Z, Ruan L, Hu Y. Engineered glyphosate oxidase coupled to spore-based chemiluminescence system for glyphosate detection. Anal Chim Acta 2020; 1133:39-47. [PMID: 32993872 DOI: 10.1016/j.aca.2020.07.077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
Abstract
The extensive and intensive utilization of glyphosate (Glyp) caused public concerns on the potential risk of environment and health resulted from the chemical residues. Therefore, the development of a high-selective, low-cost and easy-operation Glyp detection methods is highly desired. Screening highly selective enzymes by directed evolution is important in practical applications. Herein, a glyphosate oxidase (GlypO) preferring substrate Glyp to produce H2O2 was obtained via directed evolution from glycine oxidase obtained from Bacillus cereus (BceGO). The catalytic efficiency, specificity constant, and affinity enhancement factor of GlypO toward Glyp were increased by 2.85 × 103-fold; 2.25 × 105-fold; and 9.64 × 104-fold, respectively, compared with those of BceGO. The catalytic efficiency toward glycine decreased by 78.60-fold. The spores of Bacillus subtilis (B. subtilis) effectively catalyzed luminol-H2O2 reaction to create excellent chemiluminescence (CL) signal because CotA-laccase exists on their surface. Based on these findings, a new CL biosensor via coupling to biological reaction system was presented for Glyp detection. The CL biosensor exhibited several advantages, such as eco-friendliness, low cost, high selectivity and sensitivity, and good practical application prospects for environmental pollution control.
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Affiliation(s)
- Yuqing Qin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Gaobing Wu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yiming Guo
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Da Ke
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jiakang Yin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Donglin Wang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xuezhu Fan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ziduo Liu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Lifang Ruan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Yonggang Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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25
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Jiang Z, Chen Y, Xing M, Ji P, Feng W. Fabrication of a Fibrous Metal-Organic Framework and Simultaneous Immobilization of Enzymes. ACS OMEGA 2020; 5:22708-22718. [PMID: 32954118 PMCID: PMC7495460 DOI: 10.1021/acsomega.0c00868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
A nanorod-like lanthanum metal-organic framework (LaMOF) was synthesized in aqueous solution by coordinating La(III) to the ligand 1,3,5-benzenetricarboxylic acid. The fibrous LaMOF was fabricated by splitting the nanorod-like LaMOF in a solution of d-amino acid oxidase, and the enzyme was immobilized simultaneously. Based on SEM and TEM images, STEM mapping, and spectra of XPS and FTIR, the mechanism of formation of the fibrous LaMOF and the distinct interfacial phenomena have been elucidated. The fabrication of the fibrous LaMOF and simultaneous immobilization of the enzyme were carried out in aqueous solutions at room temperature, without using any organic solvent. It is a clean and time- and energy-effective process. This work presents a distinct and clean methodology for the fabrication of the fibrous MOF. Potentially, the environmentally benign methodology can be extended to immobilize other enzymes.
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Affiliation(s)
- Zhengfeng Jiang
- Department of Biological
Engineering, Beijing University of Chemical
Technology, Beijing 100029, China
| | - Yao Chen
- Department of Biological
Engineering, Beijing University of Chemical
Technology, Beijing 100029, China
| | - Menghan Xing
- Department of Biological
Engineering, Beijing University of Chemical
Technology, Beijing 100029, China
| | - Peijun Ji
- Department of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wei Feng
- Department of Biological
Engineering, Beijing University of Chemical
Technology, Beijing 100029, China
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26
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Heß MC, Bloess S, Risse JM, Friehs K, Fischer von Mollard G. Recombinant expression of an l-amino acid oxidase from the fungus Hebeloma cylindrosporum in Pichia pastoris including fermentation. Microbiologyopen 2020; 9:e1112. [PMID: 32852125 PMCID: PMC7568252 DOI: 10.1002/mbo3.1112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/28/2020] [Accepted: 07/31/2020] [Indexed: 01/27/2023] Open
Abstract
l‐amino acid oxidases (LAAOs) are flavoenzymes that catalyze the oxidative deamination of l‐amino acids to the corresponding α‐keto acids, ammonia, and hydrogen peroxide. Here, we show the overexpression, purification, and the characterization of LAAO4 from the fungus Hebeloma cylindrosporum in the yeast Pichia pastoris with a 9His‐tag and compare this with the recently characterized 6His‐hcLAAO4 expressed in E. coli. The expression of the enzyme with an ER‐signal sequence in P. pastoris resulted in a glycosylated, secreted protein. The enzymatic activity without activation was higher after expression in P. pastoris compared to E. coli. Due to treatment with acidic pH, a striking increase of activity could be detected for both expression systems resulting in similar specific activities after acid activation. Regarding the substrate spectrum, temperature stability, Km, and vmax values, hcLAAO4 showed very few differences when produced in these two expression systems. A higher yield of hcLAAO4 could be obtained by fermentation.
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Affiliation(s)
- Marc Christian Heß
- Biochemistry III, Department of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Svenja Bloess
- Biochemistry III, Department of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Joe Max Risse
- Fermentation Engineering, Faculty of Technology, Bielefeld University, Bielefeld, Germany
| | - Karl Friehs
- Fermentation Engineering, Faculty of Technology, Bielefeld University, Bielefeld, Germany
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27
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Martínez-Rodríguez S, Torres JM, Sánchez P, Ortega E. Overview on Multienzymatic Cascades for the Production of Non-canonical α-Amino Acids. Front Bioeng Biotechnol 2020; 8:887. [PMID: 32850740 PMCID: PMC7431475 DOI: 10.3389/fbioe.2020.00887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/09/2020] [Indexed: 12/11/2022] Open
Abstract
The 22 genetically encoded amino acids (AAs) present in proteins (the 20 standard AAs together with selenocysteine and pyrrolysine), are commonly referred as proteinogenic AAs in the literature due to their appearance in ribosome-synthetized polypeptides. Beyond the borders of this key set of compounds, the rest of AAs are generally named imprecisely as non-proteinogenic AAs, even when they can also appear in polypeptide chains as a result of post-transductional machinery. Besides their importance as metabolites in life, many of D-α- and L-α-"non-canonical" amino acids (NcAAs) are of interest in the biotechnological and biomedical fields. They have found numerous applications in the discovery of new medicines and antibiotics, drug synthesis, cosmetic, and nutritional compounds, or in the improvement of protein and peptide pharmaceuticals. In addition to the numerous studies dealing with the asymmetric synthesis of NcAAs, many different enzymatic pathways have been reported in the literature allowing for the biosynthesis of NcAAs. Due to the huge heterogeneity of this group of molecules, this review is devoted to provide an overview on different established multienzymatic cascades for the production of non-canonical D-α- and L-α-AAs, supplying neophyte and experienced professionals in this field with different illustrative examples in the literature. Whereas the discovery of new or newly designed enzymes is of great interest, dusting off previous enzymatic methodologies by a "back and to the future" strategy might accelerate the implementation of new or improved multienzymatic cascades.
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28
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Yasukawa K, Kawahara N, Motojima F, Nakano S, Asano Y. Porcine kidney d-amino acid oxidase-derived R-amine oxidases with new substrate specificities. Enzymes 2020; 47:117-136. [PMID: 32951821 DOI: 10.1016/bs.enz.2020.06.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An R-stereoselective amine oxidase and variants with markedly altered substrate specificity toward (R)-amines were generated from porcine d-amino acid oxidase (pkDAO), based on the X-ray crystallographic analysis of the wild-type enzyme. The new R-amine oxidase, a pkDAO variant (Y228L/R283G), acted on α-MBA and its derivatives, α-ethylbenzylamine, alkylamine, and cyclic secondary amines, totally losing the activities toward the original substrates, d-amino acids. The variant is enantiocomplementary to the flavin-type S-stereoselective amine oxidase variant from Aspergillus niger. Moreover, we solved the structure of pkDAO variants and successfully applied the obtained information to generate more variants through rational protein engineering, and used them in the synthesis of pharmaceutically attractive chiral compounds. The pkDAO variant Y228L/R283G and a variant I230A/R283G were used to synthesize (S)-amine and (R)-4-CBHA through deracemization, from racemic α-methylbenzylamine and benzhydrylamine, respectively, by selective oxidation of one of the enantiomers in the presence of a chemical reductant such as NaBH4. From a mechanistic point of view, we speculated that the imine intermediate, synthesized by oxidases or dehydrogenases, could be converted into primary α-aminonitrile by nucleophilic addition of cyanide in aqueous solutions. Nitriles and some unnatural amino acids were synthesized through a cascade reaction by oxidative cyanation reaction with the variant and a wide substrate specificity nitrilase.
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Affiliation(s)
- Kazuyuki Yasukawa
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Toyama, Japan; Asano Active Enzyme Molecule Project, ERATO, JST, Imizu, Toyama, Japan
| | - Nobuhiro Kawahara
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Toyama, Japan; Asano Active Enzyme Molecule Project, ERATO, JST, Imizu, Toyama, Japan
| | - Fumihiro Motojima
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Toyama, Japan; Asano Active Enzyme Molecule Project, ERATO, JST, Imizu, Toyama, Japan
| | - Shogo Nakano
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Toyama, Japan; Asano Active Enzyme Molecule Project, ERATO, JST, Imizu, Toyama, Japan
| | - Yasuhisa Asano
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Toyama, Japan; Asano Active Enzyme Molecule Project, ERATO, JST, Imizu, Toyama, Japan.
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29
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Xu J, Zhang K, Cao H, Li H, Cheng F, Cao C, Xue YP, Zheng YG. Development of a biocatalytic cascade for synthesis of 2-oxo-4-(hydroxymethylphosphinyl) butyric acid in one pot. BIOCATAL BIOTRANSFOR 2020. [DOI: 10.1080/10242422.2020.1797697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jianmiao Xu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China
- National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Kai Zhang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China
- National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Huiting Cao
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China
- National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Heng Li
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China
- National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Feng Cheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China
- National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Chenghao Cao
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China
- National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Ya-Ping Xue
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China
- National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Yu-Guo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China
- National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, P. R. China
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30
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Kashkan I, Timofeyenko K, Kollárová E, Růžička K. In vivo Reporters for Visualizing Alternative Splicing of Hormonal Genes. PLANTS (BASEL, SWITZERLAND) 2020; 9:E868. [PMID: 32650629 PMCID: PMC7412054 DOI: 10.3390/plants9070868] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/02/2020] [Accepted: 07/07/2020] [Indexed: 11/17/2022]
Abstract
Rapid progress in plant molecular biology in recent years has uncovered the main players in hormonal pathways and characterized transcriptomic networks associated with hormonal response. However, the role of RNA processing, in particular alternative splicing (AS), remains largely unexplored. Here, using example genes involved in cytokinin signaling, brassinosteroid synthesis and auxin transport, we present a set of reporters devised to visualize their AS events in vivo. These reporters show a differential tissue-specific expression of certain transcripts and reveal that expression of some of the them can be changed by the application of the exogenous hormone. Finally, based on the characterized AS event of the PIN7 auxin efflux carrier, we designed a system that allows a rapid genetic screening for the factors upstream of this AS event. Our innovative toolset can be therefore highly useful for exploring novel regulatory nodes of hormonal pathways and potentially helpful for plant researchers focusing on developmental aspects of AS.
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Affiliation(s)
- Ivan Kashkan
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, 165 02 Prague, Czech Republic; (I.K.); (K.T.)
- Functional Genomics and Proteomics of Plants, Central European Institute of Technology and National Centre for Biomolecular Research, Masaryk University, 625 00 Brno, Czech Republic;
| | - Ksenia Timofeyenko
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, 165 02 Prague, Czech Republic; (I.K.); (K.T.)
- Functional Genomics and Proteomics of Plants, Central European Institute of Technology and National Centre for Biomolecular Research, Masaryk University, 625 00 Brno, Czech Republic;
| | - Eva Kollárová
- Functional Genomics and Proteomics of Plants, Central European Institute of Technology and National Centre for Biomolecular Research, Masaryk University, 625 00 Brno, Czech Republic;
| | - Kamil Růžička
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany, Czech Academy of Sciences, 165 02 Prague, Czech Republic; (I.K.); (K.T.)
- Functional Genomics and Proteomics of Plants, Central European Institute of Technology and National Centre for Biomolecular Research, Masaryk University, 625 00 Brno, Czech Republic;
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31
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Rosini E, D’Antona P, Pollegioni L. Biosensors for D-Amino Acids: Detection Methods and Applications. Int J Mol Sci 2020; 21:E4574. [PMID: 32605078 PMCID: PMC7369756 DOI: 10.3390/ijms21134574] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/25/2020] [Accepted: 06/25/2020] [Indexed: 12/24/2022] Open
Abstract
D-enantiomers of amino acids (D-AAs) are only present in low amounts in nature, frequently at trace levels, and for this reason, their biological function was undervalued for a long time. In the past 25 years, the improvements in analytical methods, such as gas chromatography, HPLC, and capillary electrophoresis, allowed to detect D-AAs in foodstuffs and biological samples and to attribute them specific biological functions in mammals. These methods are time-consuming, expensive, and not suitable for online application; however, life science investigations and industrial applications require rapid and selective determination of D-AAs, as only biosensors can offer. In the present review, we provide a status update concerning biosensors for detecting and quantifying D-AAs and their applications for safety and quality of foods, human health, and neurological research. The review reports the main challenges in the field, such as selectivity, in order to distinguish the different D-AAs present in a solution, the simultaneous assay of both L- and D-AAs, the production of implantable devices, and surface-scanning biosensors. These innovative tools will push future research aimed at investigating the neurological role of D-AAs, a vibrant field that is growing at an accelerating pace.
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Affiliation(s)
- Elena Rosini
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100 Varese, Italy; (P.D.); (L.P.)
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32
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Trisrivirat D, Lawan N, Chenprakhon P, Matsui D, Asano Y, Chaiyen P. Mechanistic insights into the dual activities of the single active site of l-lysine oxidase/monooxygenase from Pseudomonas sp. AIU 813. J Biol Chem 2020; 295:11246-11261. [PMID: 32527725 DOI: 10.1074/jbc.ra120.014055] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/10/2020] [Indexed: 12/19/2022] Open
Abstract
l-Lysine oxidase/monooxygenase (l-LOX/MOG) from Pseudomonas sp. AIU 813 catalyzes the mixed bioconversion of l-amino acids, particularly l-lysine, yielding an amide and carbon dioxide by an oxidative decarboxylation (i.e. apparent monooxygenation), as well as oxidative deamination (hydrolysis of oxidized product), resulting in α-keto acid, hydrogen peroxide (H2O2), and ammonia. Here, using high-resolution MS and monitoring transient reaction kinetics with stopped-flow spectrophotometry, we identified the products from the reactions of l-lysine and l-ornithine, indicating that besides decarboxylating imino acids (i.e. 5-aminopentanamide from l-lysine), l-LOX/MOG also decarboxylates keto acids (5-aminopentanoic acid from l-lysine and 4-aminobutanoic acid from l-ornithine). The reaction of reduced enzyme and oxygen generated an imino acid and H2O2, with no detectable C4a-hydroperoxyflavin. Single-turnover reactions in which l-LOX/MOG was first reduced by l-lysine to form imino acid before mixing with various compounds revealed that under anaerobic conditions, only hydrolysis products are present. Similar results were obtained upon H2O2 addition after enzyme denaturation. H2O2 addition to active l-LOX/MOG resulted in formation of more 5-aminopentanoic acid, but not 5-aminopentamide, suggesting that H2O2 generated from l-LOX/MOG in situ can result in decarboxylation of the imino acid, yielding an amide product, and extra H2O2 resulted in decarboxylation only of keto acids. Molecular dynamics simulations and detection of charge transfer species suggested that interactions between the substrate and its binding site on l-LOX/MOG are important for imino acid decarboxylation. Structural analysis indicated that the flavoenzyme oxidases catalyzing decarboxylation of an imino acid all share a common plug loop configuration that may facilitate this decarboxylation.
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Affiliation(s)
- Duangthip Trisrivirat
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, Thailand.,School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Narin Lawan
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Pirom Chenprakhon
- Institute for Innovative Learning, Mahidol University, Nakhon Pathom, Thailand
| | - Daisuke Matsui
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Japan.,Department of Biotechnology, College of Life Sciences, Ritsumeikan University, Japan
| | - Yasuhisa Asano
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Japan
| | - Pimchai Chaiyen
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, Thailand .,School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
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33
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Pollegioni L, Rosini E, Molla G. Advances in Enzymatic Synthesis of D-Amino Acids. Int J Mol Sci 2020; 21:E3206. [PMID: 32369969 PMCID: PMC7247363 DOI: 10.3390/ijms21093206] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 01/02/2023] Open
Abstract
In nature, the D-enantiomers of amino acids (D-AAs) are not used for protein synthesis and during evolution acquired specific and relevant physiological functions in different organisms. This is the reason for the surge in interest and investigations on these "unnatural" molecules observed in recent years. D-AAs are increasingly used as building blocks to produce pharmaceuticals and fine chemicals. In past years, a number of methods have been devised to produce D-AAs based on enantioselective enzymes. With the aim to increase the D-AA derivatives generated, to improve the intrinsic atomic economy and cost-effectiveness, and to generate processes at low environmental impact, recent studies focused on identification, engineering and application of enzymes in novel biocatalytic processes. The aim of this review is to report the advances in synthesis of D-AAs gathered in the past few years based on five main classes of enzymes. These enzymes have been combined and thus applied to multi-enzymatic processes representing in vitro pathways of alternative/exchangeable enzymes that allow the generation of an artificial metabolism for D-AAs synthetic purposes.
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Affiliation(s)
| | | | - Gianluca Molla
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100 Varese, Italy; (L.P.); (E.R.)
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d-Aspartate oxidase: distribution, functions, properties, and biotechnological applications. Appl Microbiol Biotechnol 2020; 104:2883-2895. [DOI: 10.1007/s00253-020-10439-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 01/28/2020] [Accepted: 02/05/2020] [Indexed: 12/16/2022]
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Flavonoids and type 2 diabetes: Evidence of efficacy in clinical and animal studies and delivery strategies to enhance their therapeutic efficacy. Pharmacol Res 2020; 152:104629. [PMID: 31918019 DOI: 10.1016/j.phrs.2020.104629] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/23/2019] [Accepted: 01/02/2020] [Indexed: 12/26/2022]
Abstract
Diabetes mellitus type 2 (T2DM) is a metabolic disorder develops due to the overproduction of free radicals where oxidative stress could contribute it. Possible factors are defective insulin signals, glucose oxidation, and degradation of glycated proteins as well as alteration in glutathione metabolism which induced hyperglycemia. Previous studies revealed a link between T2DM with oxidative stress, inflammation and insulin resistance which are assumed to be regulated by numerous cellular networks such as NF-κB, PI3K/Akt, MAPK, GSK3 and PPARγ. Flavonoids are ubiquitously present in the nature and classified according to their chemical structures for example, flavonols, flavones, flavan-3-ols, anthocyanidins, flavanones, and isoflavones. Flavonoids indicate poor bioavailability which could be improved by employing various nano-delivery systems against the occurrences of T2DM. These bioactive compounds exert versatile anti-diabetic activities via modulating targeted cellular signaling networks, thereby, improving glucose metabolism, α -glycosidase, and glucose transport or aldose reductase by carbohydrate metabolic pathway in pancreatic β-cells, hepatocytes, adipocytes and skeletal myofibres. Moreover, anti-diabetic properties of flavonoids also encounter diabetic related complications. This review article has designed to shed light on the anti-diabetic potential of flavonoids, contribution of oxidative stress, evidence of efficacy in clinical, cellular and animal studies and nano-delivery approaches to enhance their therapeutic efficacy. This article might give some new insights for therapeutic intervention against T2DM in near future.
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Efficient enzymatic synthesis of α-keto acids by redesigned substrate-binding pocket of the l-amino acid deaminase (PmiLAAD). Enzyme Microb Technol 2020; 132:109393. [DOI: 10.1016/j.enzmictec.2019.109393] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 08/01/2019] [Accepted: 08/04/2019] [Indexed: 11/18/2022]
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Marcone GL, Binda E, Rosini E, Abbondi M, Pollegioni L. Antibacterial Properties of D-Amino Acid Oxidase: Impact on the Food Industry. Front Microbiol 2019; 10:2786. [PMID: 31849918 PMCID: PMC6902632 DOI: 10.3389/fmicb.2019.02786] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/15/2019] [Indexed: 11/23/2022] Open
Affiliation(s)
| | - Elisa Binda
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Elena Rosini
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Monica Abbondi
- D-Amino Acids International Reference Center, Gerenzano, Italy
- Fondazione Istituto Insubrico Ricerca per la Vita, Gerenzano, Italy
| | - Loredano Pollegioni
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
- Fondazione Istituto Insubrico Ricerca per la Vita, Gerenzano, Italy
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Nakano S, Minamino Y, Hasebe F, Ito S. Deracemization and Stereoinversion to Aromatic d-Amino Acid Derivatives with Ancestral l-Amino Acid Oxidase. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03418] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shogo Nakano
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yuki Minamino
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Fumihito Hasebe
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Sohei Ito
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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Shimekake Y, Furuichi T, Abe K, Kera Y, Takahashi S. A novel thermostable D-amino acid oxidase of the thermophilic fungus Rasamsonia emersonii strain YA. Sci Rep 2019; 9:11948. [PMID: 31420577 PMCID: PMC6697736 DOI: 10.1038/s41598-019-48480-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 08/06/2019] [Indexed: 11/16/2022] Open
Abstract
d-Amino acid oxidase (DAAO) is a valuable flavoenzyme capable of being used in various practical applications, such as in determining d-amino acids and producing a material for semisynthetic cephalosporins, requiring higher thermal stability, higher catalytic activity, and broad substrate specificity. In this study, we isolated the thermophilic fungus Rasamsonia emersonii strain YA, which can grow on several d-amino acids as the sole nitrogen source, from a compost and characterized DAAO (ReDAAO) of the fungus. ReDAAO expressed in Escherichia coli exhibited significant oxidase activity against various neutral and basic d-amino acids, in particular hydrophobic d-amino acids. In addition, the enzyme also significantly acted on cephalosporin C, a starting material for semisynthetic antibiotics, and d-Glu, a general substrate for d-aspartate oxidase but not for DAAO, showing its unique and practically useful substrate specificity. The apparent kcat and Km values of the enzyme toward good substrates were comparable to those of higher catalytic fungal DAAOs, and the thermal stability (T50 value of ~60 °C) was comparable to that of a thermophilic bacterial DAAO and significantly higher than that of other eukaryotic DAAOs. These results highlight the great potential of ReDAAO for use in practical applications.
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Affiliation(s)
- Yuya Shimekake
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan
| | - Takehiro Furuichi
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan
| | - Katsumasa Abe
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan
| | - Yoshio Kera
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan
| | - Shouji Takahashi
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan.
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Ruales-Salcedo AV, Higuita JC, Fontalvo J, Woodley JM. Design of enzymatic cascade processes for the production of low-priced chemicals. ACTA ACUST UNITED AC 2019; 74:77-84. [PMID: 30710489 DOI: 10.1515/znc-2018-0190] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 01/07/2019] [Indexed: 11/15/2022]
Abstract
While the application of enzymes to synthetic and industrial problems continues to grow, the major development today is focused on multi-enzymatic cascades. Such systems are particularly attractive, because many commercially available enzymes operate under relatively similar operating conditions. This opens the possibility of one-pot operation with multiple enzymes in a single reactor. In this paper the concept of modules is introduced whereby groups of enzymes are combined in modules, each operating in a single reactor, but with the option of various operating strategies to avoid any complications of nonproductive interactions between the enzymes, substrates or products in a given reactor. In this paper the selection of modules is illustrated using the synthesis of the bulk chemical, gluconic acid, from lignocellulosic waste.
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Affiliation(s)
- Angela Viviana Ruales-Salcedo
- Grupo de Investigación en Aplicación de Nuevas Tecnologías, Departamento de Ingeniería Química, Universidad Nacional de Colombia, Campus La Nubia, Edificio L103, Manizales, Colombia
| | - Juan Carlos Higuita
- Grupo de Procesos Químicos, Catalíticos y Biotecnológicos, Departamento de Ingeniería Química, Universidad Nacional de Colombia, Campus La Nubia, Edificio L103, Manizales, Colombia
| | - Javier Fontalvo
- Grupo de Investigación en Aplicación de Nuevas Tecnologías, Departamento de Ingeniería Química, Universidad Nacional de Colombia, Campus La Nubia, Edificio L103, Manizales, Colombia
| | - John M Woodley
- PROSYS Research Centre, Department of Chemical and Biochemical Engineering, The Technical University of Denmark (DTU), Building 229, 2800 Kgs. Lyngby, Denmark
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L'enfant M, Bruna F, Lorillière M, Ocal N, Fessner W, Pollegioni L, Charmantray F, Hecquet L. One‐Pot Cascade Synthesis of (3 S)‐Hydroxyketones Catalyzed by Transketolase viaHydroxypyruvate Generated in Situfrom d‐Serine by d‐Amino Acid Oxidase. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mélanie L'enfant
- Université Clermont AuvergneCNRSSIGMA Clermont, Institut de Chimie de Clermont-Ferrand (ICCF) F-63000 Clermont-Ferrand France
| | - Felipe Bruna
- Université Clermont AuvergneCNRSSIGMA Clermont, Institut de Chimie de Clermont-Ferrand (ICCF) F-63000 Clermont-Ferrand France
| | - Marion Lorillière
- Université Clermont AuvergneCNRSSIGMA Clermont, Institut de Chimie de Clermont-Ferrand (ICCF) F-63000 Clermont-Ferrand France
| | - Nazim Ocal
- Université Clermont AuvergneCNRSSIGMA Clermont, Institut de Chimie de Clermont-Ferrand (ICCF) F-63000 Clermont-Ferrand France
| | - Wolf‐Dieter Fessner
- Institut für Organische Chemie und BiochemieTechnische Universität Darmstadt 64287 Darmstadt Germany
| | - Loredano Pollegioni
- Department of Biotechnology and Life SciencesUniversità degli Studi dell'Insubria Varese Italy
| | - Franck Charmantray
- Université Clermont AuvergneCNRSSIGMA Clermont, Institut de Chimie de Clermont-Ferrand (ICCF) F-63000 Clermont-Ferrand France
| | - Laurence Hecquet
- Université Clermont AuvergneCNRSSIGMA Clermont, Institut de Chimie de Clermont-Ferrand (ICCF) F-63000 Clermont-Ferrand France
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Wu L, Guo X, Wu G, Liu P, Liu Z. Efficient production of α-keto acids by immobilized E. coli-pETduet-1- PmiLAAO in a jacketed packed-bed reactor. ROYAL SOCIETY OPEN SCIENCE 2019; 6:182035. [PMID: 31183133 PMCID: PMC6502377 DOI: 10.1098/rsos.182035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 03/01/2019] [Indexed: 06/09/2023]
Abstract
α-keto acids are compounds of primary interest for the fine chemical, pharmaceutical and agrochemical sectors. l-amino acid oxidases as an efficient tool are used for α-keto acids preparation in this study. Firstly, an l-amino acid oxidase (PmiLAAO) from Proteus mirabilis was discovered by data mining. Secondly, by gene expression vector screening, pETDuet-1-PmiLAAO activity improved by 130%, as compared to the pET20b-PmiLAAO. PmiLAAO production was increased to 9.8 U ml-1 by optimized expression condition (OD600 = 0.65, 0.45 mmol l-1 IPTG, 20 h of induction). Furthermore, The PmiLAAO was stabile in the pH range of 4.0-9.0 and in the temperature range of 10-40°C; the optimal pH and temperature of recombinant PmiLAAO were 6.5 and 37°C, respectively. Afterwards, in order to simplify product separation process, E. coli-pETduet-1-PmiLAAO was immobilized in Ca-alginate beads. Continuous production of 2-oxo-3-phenylpropanoic acid was conducted in a packed-bed reactor via immobilized E. coli-pETduet-1-PmiLAAO. Significantly, 29.66 g l-1 2-oxo-3-phenylpropanoic acid with a substrate conversion rate of 99.5% was achieved by correspondingly increasing the residence time (25 h). This method holds the potential to be used for efficiently producing pure α-keto acids.
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Affiliation(s)
- Licheng Wu
- Department of R&D of zhejiang zhengshuo Biological Co., Ltd, Huzhou 313000, Zhejiang, People's Republic of China
| | - Xiaolei Guo
- College of life science, Fujian normal university, Fuzhou, Fujian 350000, People's Republic of China
| | - Gaobing Wu
- College of Life Science and Technology, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Pengfu Liu
- Zhejiang University of Technology, Hangzhou 310014, Zhejiang, People's Republic of China
| | - Ziduo Liu
- College of Life Science and Technology, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
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43
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Properties of l-amino acid deaminase: En route to optimize bioconversion reactions. Biochimie 2019; 158:199-207. [DOI: 10.1016/j.biochi.2019.01.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 01/18/2019] [Indexed: 12/24/2022]
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Du K, Li R, Zhang D, Feng W. Covalent Linkage of an R-ω-Transaminase to a d-Amino Acid Oxidase through Protein Splicing to Enhance Enzymatic Catalysis of Transamination. Chembiochem 2019; 20:701-709. [PMID: 30447031 DOI: 10.1002/cbic.201800646] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Indexed: 11/07/2022]
Abstract
R-ω-Transaminases (RTAs) catalyse the conversion of R-configured amines [e.g., (R)-1-phenylethylamine] into the corresponding ketones (e.g., acetophenone), by transferring an amino group from an amino donor [e.g., (R)-1-phenylethylamine] onto an amino acceptor (e.g., pyruvate), resulting in a co-product (e.g., d-alanine). d-Alanine can be deaminated back to pyruvate by d-amino acid oxidase (DAAOs). Here, through in vivo subunit splicing, the N terminus of an RTA subunit (RTAS ) was specifically ligated to the C terminus of a DAAO subunit (DAAOS ) through native peptide bonds (RTA&DAAO). RTAS is in close proximity to DAAOS , at a molecular-scale distance. Thus the transfer of pyruvate and d-alanine between RTA and DAAO can be directional and efficient. Pyruvate→d-alanine→pyruvate cycles are efficiently formed, thus promoting the forward transamination reaction. In a different, in vitro noncovalent approach, based on coiled-coil association, the RTAS N terminus was specifically associated with the DAAOS C terminus (RTA#DAAO). In addition, the two mixed individual enzymes (RTA+DAAO) were also studied. RTA&DAAO has a shorter distance between the paired subunits (RTAS -DAAOS ) than RTA#DAAO, and the number of the paired subunits is higher than in the case of RTA#DAAO, whereas RTA+DAAO cannot form the paired subunits. RTA&DAAO exhibited a transamination catalysis efficiency higher than that of RTA#DAAO and much higher than that of RTA+DAAO.
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Affiliation(s)
- Kun Du
- Department of Biochemical Engineering, Beijing University of Chemical Technology, Beisanhuandonglu 15, Beijing, 100029, China
| | - Rong Li
- Department of Biochemical Engineering, Beijing University of Chemical Technology, Beisanhuandonglu 15, Beijing, 100029, China
| | - Dongrui Zhang
- Department of Biochemical Engineering, Beijing University of Chemical Technology, Beisanhuandonglu 15, Beijing, 100029, China
| | - Wei Feng
- Department of Biochemical Engineering, Beijing University of Chemical Technology, Beisanhuandonglu 15, Beijing, 100029, China
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Chen Y, Chu H, Liu W, Feng W. Simultaneous synthesis of l-DOPA and oxidation of d-amino acid by specific coupling of a peroxidase to d-amino acid oxidase. Enzyme Microb Technol 2019; 121:8-16. [PMID: 30554648 DOI: 10.1016/j.enzmictec.2018.10.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 10/14/2018] [Accepted: 10/26/2018] [Indexed: 12/21/2022]
Abstract
3,4 Dihydroxy phenyl l-alanine (L-DOPA) is the gold standard Parkinson's disease therapy. A heme-dependent peroxidase (HDP) catalyzes the ortho-hydroxylation of l-tyrosine to l-DOPA using H2O2 as the co-substrate. d-amino acid oxidase (DAAO) catalyzes the oxidative deamination of d-amino acids (e.g. d-alanine), and H2O2 is evolved. However, both the enzymes DAAO and HDP can be inactivated by H2O2 during the catalysis. In situ generation and utilization of H2O2 can siginificatly reduce the inactivation by H2O2. HDP exists as a monomer and DAAO is a dimeric enzyme. Herein, the C-terminus of HDP was specifically ligated to the N-terminus of the DAAO subunit with native peptide through the in vivo monomer-subunit splicing. In the splicing product HDP&DAAO, HDP is close to the DAAO subunit at a molecular distance, and the transfer of H2O2 from DAAO to HDP is facilitated. In addition, HDP&DAAO exhibited a higher stability than HDP. Kinetics analysis showed that both the substrates l-tyrosine and d-alanine obey the Michaelis-Menten kinetics. For the deamination of d-alanine, the catalytic efficiency of HDP&DAAO is 3.05 times that of DAAO. For the sybthesis of l-DOPA from l-tyrosine, the catalytic efficiency of HDP&DAAO is 1.58 times that of HDP. Furthermore, HDP&DAAO was encapsulated within a Znic-based coordination polymer (Zn-CP). The morphorogy of HDP&DAAO/Zn-CP can be regulated by the enzyme concentration, the catalytic efficiency of the conjugates was found to be dependent on the morphorogy. The conjugates HDP&DAAO/Zn-CP exhibited a higher catalytic efficiency than free HDP&DAAO.
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Affiliation(s)
- Yao Chen
- Department of Biochemical Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Hao Chu
- Department of Biochemical Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Wei Liu
- Department of Biochemical Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Wei Feng
- Department of Biochemical Engineering, Beijing University of Chemical Technology, Beijing, China.
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46
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Bloess S, Beuel T, Krüger T, Sewald N, Dierks T, Fischer von Mollard G. Expression, characterization, and site-specific covalent immobilization of an L-amino acid oxidase from the fungus Hebeloma cylindrosporum. Appl Microbiol Biotechnol 2019; 103:2229-2241. [PMID: 30631897 DOI: 10.1007/s00253-018-09609-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/21/2018] [Accepted: 12/28/2018] [Indexed: 12/17/2022]
Abstract
L-Amino acid oxidases (LAAOs) are flavoproteins, which use oxygen to deaminate L-amino acids and produce the corresponding α-keto acids, ammonia, and hydrogen peroxide. Here we describe the heterologous expression of LAAO4 from the fungus Hebeloma cylindrosporum without signal sequence as fusion protein with a 6His tag in Escherichia coli and its purification. 6His-hcLAAO4 could be activated by exposure to acidic pH, the detergent sodium dodecyl sulfate, or freezing. The enzyme converted 14 proteinogenic L-amino acids with L-glutamine, L-leucine, L-methionine, L-phenylalanine, L-tyrosine, and L-lysine being the best substrates. Methyl esters of these L-amino acids were also accepted. Even ethyl esters were converted but with lower activity. Km values were below 1 mM and vmax values between 19 and 39 U mg-1 for the best substrates with the acid-activated enzyme. The information for an N-terminal aldehyde tag was added to the coding sequence. Co-expressed formylglycine-generating enzyme was used to convert a cysteine residue in the aldehyde tag to a Cα-formylglycine residue. The aldehyde tag did not change the properties of the enzyme. Purified Ald-6His-hcLAAO4 was covalently bound to a hexylamine resin via the Cα-formylglycine residue. The immobilized enzyme could be reused repeatedly to generate phenylpyruvate from L-phenylalanine with a total turnover number of 17,600 and was stable for over 40 days at 25 °C.
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Affiliation(s)
- Svenja Bloess
- Biochemie III, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, 33615, Bielefeld, Germany
| | - Tobias Beuel
- Biochemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, 33615, Bielefeld, Germany
| | - Tobias Krüger
- Organische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, 33615, Bielefeld, Germany
| | - Norbert Sewald
- Organische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, 33615, Bielefeld, Germany
| | - Thomas Dierks
- Biochemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, 33615, Bielefeld, Germany
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Bolivar JM, Mannsberger A, Thomsen MS, Tekautz G, Nidetzky B. Process intensification for O 2 -dependent enzymatic transformations in continuous single-phase pressurized flow. Biotechnol Bioeng 2019; 116:503-514. [PMID: 30512199 PMCID: PMC6590253 DOI: 10.1002/bit.26886] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/16/2018] [Accepted: 11/29/2018] [Indexed: 12/24/2022]
Abstract
Oxidative O2 -dependent biotransformations are promising for chemical synthesis, but their development to an efficiency required in fine chemical manufacturing has proven difficult. General problem for process engineering of these systems is that thermodynamic and kinetic limitations on supplying O2 to the enzymatic reaction combine to create a complex bottleneck on conversion efficiency. We show here that continuous-flow microreactor technology offers a comprehensive solution. It does so by expanding the process window to the medium pressure range (here, ≤34 bar) and thus enables biotransformations to be conducted in a single liquid phase at boosted concentrations of the dissolved O2 (here, up to 43 mM). We take reactions of glucose oxidase and d-amino acid oxidase as exemplary cases to demonstrate that the pressurized microreactor presents a powerful engineering tool uniquely apt to overcome restrictions inherent to the individual O2 -dependent transformation considered. Using soluble enzymes in liquid flow, we show reaction rate enhancement (up to six-fold) due to the effect of elevated O2 concentrations on the oxidase kinetics. When additional catalase was used to recycle dissolved O2 from the H2 O2 released in the oxidase reaction, product formation was doubled compared to the O2 supplied, in the absence of transfer from a gas phase. A packed-bed reactor containing oxidase and catalase coimmobilized on porous beads was implemented to demonstrate catalyst recyclability and operational stability during continuous high-pressure conversion. Product concentrations of up to 80 mM were obtained at low residence times (1-4 min). Up to 360 reactor cycles were performed at constant product release and near-theoretical utilization of the O2 supplied. Therefore, we show that the pressurized microreactor is practical embodiment of a general reaction-engineering concept for process intensification in enzymatic conversions requiring O2 as the cosubstrate.
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Affiliation(s)
- Juan M Bolivar
- Austrian Centre of Industrial Biotechnology (ACIB), Graz, Austria.,Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Graz, Austria
| | - Alexander Mannsberger
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Graz, Austria
| | | | - Günter Tekautz
- Microinnova Engineering GmbH, Allerheiligen bei Wildon, Austria
| | - Bernd Nidetzky
- Austrian Centre of Industrial Biotechnology (ACIB), Graz, Austria.,Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Graz, Austria
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48
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Pollegioni L, Sacchi S, Murtas G. Human D-Amino Acid Oxidase: Structure, Function, and Regulation. Front Mol Biosci 2018; 5:107. [PMID: 30547037 PMCID: PMC6279847 DOI: 10.3389/fmolb.2018.00107] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 11/12/2018] [Indexed: 12/11/2022] Open
Abstract
D-Amino acid oxidase (DAAO) is an FAD-containing flavoenzyme that catalyzes with absolute stereoselectivity the oxidative deamination of all natural D-amino acids, the only exception being the acidic ones. This flavoenzyme plays different roles during evolution and in different tissues in humans. Its three-dimensional structure is well conserved during evolution: minute changes are responsible for the functional differences between enzymes from microorganism sources and those from humans. In recent years several investigations focused on human DAAO, mainly because of its role in degrading the neuromodulator D-serine in the central nervous system. D-Serine is the main coagonist of N-methyl D-aspartate receptors, i.e., excitatory amino acid receptors critically involved in main brain functions and pathologic conditions. Human DAAO possesses a weak interaction with the FAD cofactor; thus, in vivo it should be largely present in the inactive, apoprotein form. Binding of active-site ligands and the substrate stabilizes flavin binding, thus pushing the acquisition of catalytic competence. Interestingly, the kinetic efficiency of the enzyme on D-serine is very low. Human DAAO interacts with various proteins, in this way modulating its activity, targeting, and cell stability. The known properties of human DAAO suggest that its activity must be finely tuned to fulfill a main physiological function such as the control of D-serine levels in the brain. At present, studies are focusing on the epigenetic modulation of human DAAO expression and the role of post-translational modifications on its main biochemical properties at the cellular level.
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Affiliation(s)
- Loredano Pollegioni
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, Varese, Italy
| | - Silvia Sacchi
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, Varese, Italy
| | - Giulia Murtas
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, Varese, Italy
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Yasukawa K, Motojima F, Ono A, Asano Y. Expansion of the Substrate Specificity of Porcine Kidney D-Amino Acid Oxidase for S-Stereoselective Oxidation of 4-Cl-Benzhydrylamine. ChemCatChem 2018; 10:3500-3505. [PMID: 30333894 PMCID: PMC6174955 DOI: 10.1002/cctc.201800614] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Indexed: 11/11/2022]
Abstract
Discovery and development of enzymes for the synthesis of chiral amines have been a hot topic for basic and applied aspects of biocatalysts. Based on our X-ray crystallographic analyses of porcine kidney D-amino acid oxidase (pkDAO) and its variants, we rationally designed a new variant that catalyzed the oxidation of (S)-4-Cl-benzhydrylamine (CBHA) from pkDAO and obtained it by functional high-throughput screening with colorimetric assay. The variant I230A/R283G was constructed from the variant R283G which had completely lost the activity for D-amino acids, further gaining new activity toward (S)-chiral amines with the bulky substituents. The variant enzyme (I230A/R283G) was characterized to have a catalytic efficiency of 1.85 s-1 for (S)-CBHA, while that for (R)-1-phenylethylamine was diminished 10-fold as compared with the Y228L/R283G variant. The variant was efficiently used for the synthesis of (R)-CBHA in 96 % ee from racemic CBHA by the deracemization reaction in the presence of reducing agent such as NaBH4 in water. Furthermore, X-ray crystallographic analysis of the new variant complexed with (S)-CBHA, together with modelling study clearly showed the basis of understanding the structure-activity relationship of pkDAO.
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Affiliation(s)
- Kazuyuki Yasukawa
- Biotechnology Research Center and Department of BiotechnologyToyama Prefectural University5180 KurokawaImizu, Toyama939-0398Japan
- Asano Active Enzyme Molecule ProjectToyama Prefectural University5180 KurokawaImizu, Toyama939-0398Japan
| | - Fumihiro Motojima
- Biotechnology Research Center and Department of BiotechnologyToyama Prefectural University5180 KurokawaImizu, Toyama939-0398Japan
- Asano Active Enzyme Molecule ProjectToyama Prefectural University5180 KurokawaImizu, Toyama939-0398Japan
| | - Atsushi Ono
- Biotechnology Research Center and Department of BiotechnologyToyama Prefectural University5180 KurokawaImizu, Toyama939-0398Japan
| | - Yasuhisa Asano
- Biotechnology Research Center and Department of BiotechnologyToyama Prefectural University5180 KurokawaImizu, Toyama939-0398Japan
- Asano Active Enzyme Molecule ProjectToyama Prefectural University5180 KurokawaImizu, Toyama939-0398Japan
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50
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Dong J, Fernández‐Fueyo E, Hollmann F, Paul CE, Pesic M, Schmidt S, Wang Y, Younes S, Zhang W. Biocatalytic Oxidation Reactions: A Chemist's Perspective. Angew Chem Int Ed Engl 2018; 57:9238-9261. [PMID: 29573076 PMCID: PMC6099261 DOI: 10.1002/anie.201800343] [Citation(s) in RCA: 271] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Indexed: 01/25/2023]
Abstract
Oxidation chemistry using enzymes is approaching maturity and practical applicability in organic synthesis. Oxidoreductases (enzymes catalysing redox reactions) enable chemists to perform highly selective and efficient transformations ranging from simple alcohol oxidations to stereoselective halogenations of non-activated C-H bonds. For many of these reactions, no "classical" chemical counterpart is known. Hence oxidoreductases open up shorter synthesis routes based on a more direct access to the target products. The generally very mild reaction conditions may also reduce the environmental impact of biocatalytic reactions compared to classical counterparts. In this Review, we critically summarise the most important recent developments in the field of biocatalytic oxidation chemistry and identify the most pressing bottlenecks as well as promising solutions.
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Affiliation(s)
- JiaJia Dong
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Elena Fernández‐Fueyo
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Frank Hollmann
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Caroline E. Paul
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Milja Pesic
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Sandy Schmidt
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Yonghua Wang
- School of Food Science and EngineeringSouth China University of TechnologyGuangzhou510640P. R. China
| | - Sabry Younes
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Wuyuan Zhang
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
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