1
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Im JK, Seo DH, Yu JS, Yoo SH. Efficient and novel biosynthesis of myricetin α-triglucoside with improved solubility using amylosucrase from Deinococcus deserti. Int J Biol Macromol 2024; 273:133205. [PMID: 38885871 DOI: 10.1016/j.ijbiomac.2024.133205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/02/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Although myricetin (3,3',4',5,5',7-hexahydroxyflavone, MYR) has a high antioxidant capacity and health functions, its use as a functional food material is limited owing to its low stability and water solubility. Amylosucrase (ASase) is capable of biosynthesizing flavonol α-glycoside using flavonols as acceptor molecules and sucrose as a donor molecule. Here, ASase from Deinococcus deserti (DdAS) efficiently biosynthesizes a novel MYR α-triglucoside (MYRαG3) using MYR as the acceptor molecule. Comparative homology analysis and computational simulation revealed that DdAS has a different active pocket for the transglycosylation reaction. DdAS produced MYRαG3 with a conversion efficiency of 67.4 % using 10 mM MYR and 50 mM sucrose as acceptor and donor molecules, respectively. The structure of MYRαG3 was identified as MYR 4'-O-4″,6″-tri-O-α-D-glucopyranoside using NMR and LC-MS. In silico analysis confirmed that DdAS has a distinct active pocket compared to other ASases. In addition, molecular docking simulations predicted the synthetic sequence of MYRαG3. Furthermore, MYRαG3 showed a similar DPPH radical scavenging activity of 49 %, comparable to MYR, but with significantly higher water solubility, which increased from 0.03 μg/mL to 511.5 mg/mL. In conclusion, this study demonstrated the efficient biosynthesis of a novel MYRαG3 using DdAS and highlighted the potential of MYRαG3 as a functional material.
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Affiliation(s)
- Joong-Ki Im
- Department of Food Science & Biotechnology, Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea
| | - Dong-Ho Seo
- Department of Food Science & Biotechnology, Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea
| | - Jae Sik Yu
- Department of Integrative Sciences and Industry, Sejong University, Seoul 05006, Republic of Korea
| | - Sang-Ho Yoo
- Department of Food Science & Biotechnology, Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea.
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2
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Tian Y, Xu W, Guang C, Zhang W, Mu W. Glycosylation of flavonoids by sucrose- and starch-utilizing glycoside hydrolases: A practical approach to enhance glycodiversification. Crit Rev Food Sci Nutr 2024; 64:7408-7425. [PMID: 36876518 DOI: 10.1080/10408398.2023.2185201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Flavonoids are ubiquitous and diverse in plants and inseparable from the human diet. However, in terms of human health, their further research and application in functional food and pharmaceutical industries are hindered by their low water solubility. Therefore, flavonoid glycosylation has recently attracted research attention because it can modulate the physicochemical and biochemical properties of flavonoids. This review represents a comprehensive overview of the O-glycosylation of flavonoids catalyzed by sucrose- and starch-utilizing glycoside hydrolases (GHs). The characteristics of this feasible biosynthesis approach are systematically summarized, including catalytic mechanism, specificity, reaction conditions, and yields of the enzymatic reaction, as well as the physicochemical properties and bioactivities of the product flavonoid glycosides. The cheap glycosyl donor substrates and high yields undoubtedly make it a practical flavonoid modification approach to enhance glycodiversification.
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Affiliation(s)
- Yuqing Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wei Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Cuie Guang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
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3
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Roy JK, Ahn HW, Lee J, Kim JH, Yoo SH, Kim YW. Production of highly water-soluble genistein α-diglucoside using an engineered O-α-glycoligase with enhanced transglycosylation activity and altered substrate specificity. Food Chem 2024; 437:137898. [PMID: 37924766 DOI: 10.1016/j.foodchem.2023.137898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/19/2023] [Accepted: 10/27/2023] [Indexed: 11/06/2023]
Abstract
Genistein is one of isoflavones, showing various biological functions for human health. MalA-D416A, termed O-α-glycoligase, is an acid/base catalytic residue-deficient mutant of a α-glucosidase from Sulfolobus solfataricus, synthesizing genistein 7-O-α-glucoside using α-glucosyl fluoride as the donor substrate. Through mutagenesis toward MalA-D416A, an O-α-glycoligase variant with two mutations (D416R and Q450S) was identified as a biocatalyst with a 58.8-fold enhanced catalytic efficiency for genistein compared to the parent enzyme. The use of a 2:1 ratio of α-glucosyl fluoride and genistein at pH 9 facilitated the synthesis of genistein 7,4'-O-α-diglucoside by MalA-D416R/Q450S. The α-diglucoside exhibited 2,459-fold improved water solubility compared to genistein itself as well as facile deglycosylation by the intestinal α-glucosidase from rat, suggesting the potential of the α-diglucoside for improved bioavailability in human intestine. Through molecular docking analyses the modulation of the active site conformation by these mutations was expected for proper binding of both genistein and the monoglucoside.
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Affiliation(s)
- Jetendra Kumar Roy
- Department of Food and Biotechnology, Korea University, Sejong 30019, Republic of Korea
| | - Hee-Won Ahn
- Department of Food and Biotechnology, Korea University, Sejong 30019, Republic of Korea
| | - Jaeick Lee
- Department of Food and Biotechnology, Korea University, Sejong 30019, Republic of Korea
| | - Jin-Hyo Kim
- Department of Agricultural Chemistry, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Sang-Ho Yoo
- Department of Food Science & Biotechnology and Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea
| | - Young-Wan Kim
- Department of Food and Biotechnology, Korea University, Sejong 30019, Republic of Korea,.
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4
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Sirirungruang S, Barnum CR, Tang SN, Shih PM. Plant glycosyltransferases for expanding bioactive glycoside diversity. Nat Prod Rep 2023. [PMID: 36853278 DOI: 10.1039/d2np00077f] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Glycosylation is a successful strategy to alter the pharmacological properties of small molecules, and it has emerged as a unique approach to expand the chemical space of natural products that can be explored in drug discovery. Traditionally, most glycosylation events have been carried out chemically, often requiring many protection and deprotection steps to achieve a target molecule. Enzymatic glycosylation by glycosyltransferases could provide an alternative strategy for producing new glycosides. In particular, the glycosyltransferase family has greatly expanded in plants, representing a rich enzymatic resource to mine and expand the diversity of glycosides with novel bioactive properties. This article highlights previous and prospective uses for plant glycosyltransferases in generating bioactive glycosides and altering their pharmacological properties.
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Affiliation(s)
- Sasilada Sirirungruang
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA.,Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA.,Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.,Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Collin R Barnum
- Department of Plant Biology, University of California, Davis, CA, USA
| | - Sophia N Tang
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA.,Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.,Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Patrick M Shih
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA.,Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA.,Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.,Innovative Genomics Institute, University of California, Berkeley, CA, USA
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5
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Jung YS, Kim HG, Oh SM, Lee DY, Park CS, Kim DO, Baek NI. Synthesis of Alpha-Linked Glucosides from Soybean Isoflavone Aglycones Using Amylosucrase from Deinococcus geothermalis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2430-2437. [PMID: 36701419 DOI: 10.1021/acs.jafc.2c07778] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Soybean isoflavone aglycones (SIAs) have many biological activities but are poorly water-soluble in the human body. Glycosylation provides structural diversity to SIAs and can alter their physicochemical properties, including water solubility. An alpha-linked glucosylation of SIA was achieved using amylosucrase from Deinococcus geothermalis. A total of 13 alpha-linked glucosyl SIAs were obtained, and their colors in solution were confirmed. The structures of the isolated compounds were identified by mass spectrometry and multidimensional nuclear magnetic resonance spectroscopy. The amylosucrase transglycosylation formed new isoflavone glycosides with alpha glycosidic bonds at C-7 and/or C-4' of SIAs, followed by the production of isoflavone glycosides with alpha (1 → 6) glycosidic bonds. The products with a glucosyl moiety attached to the C-4' of SIAs were found to be more water-soluble than their counterparts attached to the C-7 and/or beta-linkages. This study suggests a strategy for the synthesis of bioactive compounds with enhanced water solubility through alpha-linked glucosylation.
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Affiliation(s)
- Young Sung Jung
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Hyoung-Geun Kim
- Graduate School of Biotechnology and Department of Oriental Medicinal Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Seon Min Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Dae Young Lee
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong 27709, Republic of Korea
| | - Cheon-Seok Park
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Dae-Ok Kim
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Nam-In Baek
- Graduate School of Biotechnology and Department of Oriental Medicinal Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
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6
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Ni D, Chen Z, Tian Y, Xu W, Zhang W, Kim BG, Mu W. Comprehensive utilization of sucrose resources via chemical and biotechnological processes: A review. Biotechnol Adv 2022; 60:107990. [PMID: 35640819 DOI: 10.1016/j.biotechadv.2022.107990] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 11/30/2022]
Abstract
Sucrose, one of the most widespread disaccharides in nature, has been available in daily human life for many centuries. As an abundant and cheap sweetener, sucrose plays an essential role in our diet and the food industry. However, it has been determined that many diseases, such as obesity, diabetes, hyperlipidemia, etc., directly relate to the overconsumption of sucrose. It arouses many explorations for the conversion of sucrose to high-value chemicals. Production of valuable substances from sucrose by chemical methods has been studied since a half-century ago. Compared to chemical processes, biotechnological conversion approaches of sucrose are more environmentally friendly. Many enzymes can use sucrose as the substrate to generate functional sugars, especially those from GH68, GH70, GH13, and GH32 families. In this review, enzymatic catalysis and whole-cell fermentation of sucrose for the production of valuable chemicals were reviewed. The multienzyme cascade catalysis and metabolic engineering strategies were addressed.
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Affiliation(s)
- Dawei Ni
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Ziwei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yuqing Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China.
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7
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A Comparison of the Transglycosylation Capacity between the Guar GH27 Aga27A and Bacteroides GH36 BoGal36A α-Galactosidases. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12105123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The transglycosylation behavior and capacity of two clan GH-D α-galactosidases, BoGal36A from the gut bacterium Bacteroides ovatus and Aga27A from the guar plant, was investigated and compared. The enzymes were screened for the ability to use para-nitrophenyl-α-galactoside (pNP-Gal), raffinose and locust bean gum (LBG) galactomannan as glycosyl donors with the glycosyl acceptors methanol, propanol, allyl alcohol, propargyl alcohol and glycerol using mass spectrometry. Aga27A was, in general, more stable in the presence of the acceptors. HPLC analysis was developed and used as a second screening method for reactions using raffinose or LBG as a donor substrate with methanol, propanol and glycerol as acceptors. Time-resolved reactions were set up with raffinose and methanol as the donor and acceptor, respectively, in order to develop an insight into the basic transglycosylation properties, including the ratio between the rate of transglycosylation (methyl galactoside synthesis) and rate of hydrolysis. BoGal36A had a somewhat higher ratio (0.99 compared to 0.71 for Aga27A) at early time points but was indicated to be more prone to secondary (product) hydrolysis in prolonged incubations. The methyl galactoside yield was higher when using raffinose (48% for BoGal36A and 38% for Aga27A) compared to LBG (27% for BoGal36A and 30% for Aga27A).
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8
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Siziya IN, Kim YS, Seo DH. Whole cell biosynthesis of luteolin glycosides by engineered Corynebacterium glutamicum harboring the amylosucrase gene. FOOD AND BIOPRODUCTS PROCESSING 2021. [DOI: 10.1016/j.fbp.2021.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Zheng L, Gao T, Ge Z, Ma Z, Xu J, Ding W, Shen L. Design, Synthesis and Structure-Activity Relationship Studies of Glycosylated Derivatives of Marine Natural Product Lamellarin D. Eur J Med Chem 2021; 214:113226. [PMID: 33582387 DOI: 10.1016/j.ejmech.2021.113226] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/14/2021] [Accepted: 01/22/2021] [Indexed: 01/01/2023]
Abstract
Lamellarin D, a marine natural product, acts as a potent inhibitor of DNA topoisomerase I (Topo I). To modify its physicochemical property and biological activity, a series of mono- and di-glycosylated derivatives were designed and synthesized through 22-26 multi-steps. Their inhibition of human Topo I was evaluated, and most of the glycosylated derivatives exhibited high potency in inhibiting Topo I activity as well as lamellarin D. All the 15 target compounds were evaluated for their cytotoxic activities against five human cancer cell lines. The typical lamellarin derivative ZL-3 exhibited the best activity with IC50 values of 3 nM, 10 nM, and 15 nM against human lung cancer A549 cells, human colon cancer HCT116 cells and human hepatocellular carcinoma HepG2 cells. Compound ZL-1 exhibited anti-cancer activity with IC50 of 14 nM and 24 nM against human colon cancer HCT116 cells and human hepatocellular carcinoma HepG2 cells, respectively. Cell cycle analysis in MDA-MB-231 suggested ZL-3 inhibited cell growth through arresting cells at the G2/M phase of the cell cycle. Further tests showed a significant improvement in aqueous solubility of ZL-1 and ZL-7. This study suggested that glycosylation could be utilized as a useful strategy to optimize lamellarin D derivatives as Topo I inhibitors and anticancer agents.
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Affiliation(s)
- Liuliu Zheng
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Tingting Gao
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Zhiwei Ge
- Analysis Center of Agrobiology and Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zhongjun Ma
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Jinzhong Xu
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Wanjing Ding
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Li Shen
- Ocean College, Zhejiang University, Zhoushan, 316021, China.
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10
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Li C, Roy JK, Park KC, Cho AE, Lee J, Kim YW. pH-promoted O-α-glucosylation of flavonoids using an engineered α-glucosidase mutant. Bioorg Chem 2020; 107:104581. [PMID: 33383321 DOI: 10.1016/j.bioorg.2020.104581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 12/17/2020] [Accepted: 12/19/2020] [Indexed: 12/26/2022]
Abstract
Retaining glycosidase mutants lacking its general acid/base catalytic residue are originally termed thioglycoligases which synthesize thio-linked disaccharides using sugar acceptor bearing a nucleophilic thiol group. A few thioglycoligases derived from retaining α-glycosidases have been classified into a new class of catalysts, O-glycoligases which transfer sugar moiety to a hydroxy group of sugar acceptors, resulting in the formation of O-linked glycosides or oligosaccharides. In this study, an efficient O-α-glucosylation of flavonoids was developed using an O-α-glycoligase derived from a thermostable α-glucosidase from Sulfolobus solfataricus (MalA-D416A). The O-glycoligase exhibited efficient transglycosylation activity with a broad substrate spectrum for all kinds of tested flavonoids including flavone, flavonol, flavanone, flavanonol, flavanol and isoflavone classes in yields of higher than 90%. The glucosylation by MalA-D416A preferred alkaline conditions, suggesting that pH-promoted deprotonation of hydroxyl groups of the flavonoids would accelerate turnover of covalent enzyme intermediate via transglucosylation. More importantly, the glucosylation of flavonoids by MalA-D416A was exclusively regioselective, resulting in the synthesis of flavonoid 7-O-α-glucosides as the sole product. Kinetic analysis and molecular dynamics simulations provided insights into the acceptor specificity and the regiospecificity of O-α-glucosylation by MalA-D416A. This pH promoted transglycosylation using O-α-glycoligases may prove to be a general synthesis route to flavonoid O-α-glycosides.
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Affiliation(s)
- Chao Li
- Department of Food and Biotechnology, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea
| | - Jetendra Kumar Roy
- Department of Food and Biotechnology, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea
| | - Ki-Cheul Park
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea
| | - Art E Cho
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea
| | - Jaeick Lee
- Department of Food and Biotechnology, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea
| | - Young-Wan Kim
- Department of Food and Biotechnology, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea.
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11
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Moulis C, Guieysse D, Morel S, Séverac E, Remaud-Siméon M. Natural and engineered transglycosylases: Green tools for the enzyme-based synthesis of glycoproducts. Curr Opin Chem Biol 2020; 61:96-106. [PMID: 33360622 DOI: 10.1016/j.cbpa.2020.11.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/16/2020] [Accepted: 11/19/2020] [Indexed: 01/22/2023]
Abstract
An increasing number of transglycosylase-based processes provide access to oligosaccharides or glycoconjugates, some of them reaching performance levels compatible with industrial developments. Nevertheless, the full potential of transglycosylases has not been explored because of the challenges in transforming a glycoside hydrolase into an efficient transglycosylase. Advances in studying enzyme structure/function relationships, screening enzyme activity, and generating synthetic libraries guided by computational protein design or machine learning methods should considerably accelerate the development of these catalysts. The time has now come for researchers to uncover their possibilities and learn how to design and precisely refine their activity to respond more rapidly to the growing demand for well-defined glycosidic structures.
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Affiliation(s)
- Claire Moulis
- Toulouse Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135, Avenue de Rangueil, Toulouse, Cedex 04, F-31077, France.
| | - David Guieysse
- Toulouse Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135, Avenue de Rangueil, Toulouse, Cedex 04, F-31077, France
| | - Sandrine Morel
- Toulouse Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135, Avenue de Rangueil, Toulouse, Cedex 04, F-31077, France
| | - Etienne Séverac
- Toulouse Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135, Avenue de Rangueil, Toulouse, Cedex 04, F-31077, France
| | - Magali Remaud-Siméon
- Toulouse Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135, Avenue de Rangueil, Toulouse, Cedex 04, F-31077, France.
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12
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Núñez-López G, Morel S, Hernández L, Musacchio A, Amaya-Delgado L, Gschaedler A, Remaud-Simeon M, Arrizon J. One-pot bi-enzymatic cascade synthesis of puerarin polyfructosides. Carbohydr Polym 2020; 247:116710. [DOI: 10.1016/j.carbpol.2020.116710] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/22/2020] [Accepted: 06/29/2020] [Indexed: 12/13/2022]
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13
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Nolte J, Kempa A, Hochgürtel M, Schörken U. Glucansucrases from lactic acid bacteria as biocatalysts for multi-ring catechol glucosylation. BIOCATAL BIOTRANSFOR 2020. [DOI: 10.1080/10242422.2020.1784882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Johannes Nolte
- Faculty of Applied Natural Sciences, TH Köln – Campus Leverkusen, Leverkusen, Germany
- Vetter Pharma-Fertigung GmbH & Co. KG, Ravensburg, Germany
| | - Alexander Kempa
- Faculty of Applied Natural Sciences, TH Köln – Campus Leverkusen, Leverkusen, Germany
- R&R Extrakte GmbH, Köln, Germany
| | - Matthias Hochgürtel
- Faculty of Applied Natural Sciences, TH Köln – Campus Leverkusen, Leverkusen, Germany
| | - Ulrich Schörken
- Faculty of Applied Natural Sciences, TH Köln – Campus Leverkusen, Leverkusen, Germany
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14
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Chin YW, Jang SW, Shin HS, Kim TW, Kim SK, Park CS, Seo DH. Heterologous expression of Deinococcus geothermalis amylosucrase in Corynebacterium glutamicum for luteolin glucoside production. Enzyme Microb Technol 2020; 135:109505. [PMID: 32146930 DOI: 10.1016/j.enzmictec.2019.109505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/12/2019] [Accepted: 12/26/2019] [Indexed: 10/25/2022]
Abstract
Amylosucrase (ASase) has great industrial potential owing to its multifunctional activities, including transglucosylation, polymerization, and isomerization. In the present study, the properties of Deinococcus geothermalis ASase (DGAS) expressed in Corynebacterium glutamicum (cDGAS) and purified via Ni-NTA affinity chromatography were compared to those of DGAS expressed in Escherichia coli (eDGAS). The pH profile of cDGAS was similar to that of eDGAS, whereas the temperature profile of cDGAS was lower than that of eDGAS. The melting temperature of both enzymes did not differ significantly. Interestingly, polymerization activity was slightly lower in cDGAS than in eDGAS, whereas luteolin (an acceptor molecule) transglucosylation activity in cDGAS was 10 % higher than that in eDGAS. Analysis of protein secondary structure via circular dichroism spectroscopy revealed that cDGAS had a lower strand/helix ratio than eDGAS. The present results indicate that cDGAS is of greater industrial significance than eDGAS.
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Affiliation(s)
- Young-Wook Chin
- Research Group of Traditional Food, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Se-Won Jang
- Research Group of Healthcare, Korea Food Research Institute, Wanju 55365, Republic of Korea; Department of Food Science and Biotechnology, College of BioNano Technology, Gachon University, Seongnam 13120, Republic of Korea
| | - Hee-Soon Shin
- Research Group of Natural Materials and Metabolism, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Tae-Wan Kim
- Research Group of Traditional Food, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Sun-Ki Kim
- Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi 17546, Republic of Korea
| | - Cheon-Seok Park
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Dong-Ho Seo
- Department of Food Science and Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea.
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15
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Klingel T, Bindereif B, Hadamjetz M, Fischer A, van der Schaaf US, Wefers D. Enzymatic Synthesis and Characterization of Mono-, Oligo-, and Polyglucosylated Conjugates of Caffeic Acid and Gallic Acid. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:13108-13118. [PMID: 31738546 DOI: 10.1021/acs.jafc.9b04495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Glucansucrases can be used to glucosylate various plant-derived phenolic compounds by using sucrose as donor substrate. We applied Lactobacillus reuteri TMW 1.106 dextransucrase to glucosylate the acceptor substrates caffeic acid and gallic acid. Subsequently, monoglucosylated and in particular oligo- and polyglucosylated conjugates were characterized by using different chromatographic techniques and two-dimensional NMR spectroscopy. Both acceptors were substituted at positions O3 and O4. Under the conditions used, two monoglucosylated products were formed for caffeic acid, whereas only one O3-monosubstituted conjugate was detected for gallic acid. However, both acceptors resulted in O4-substituted oligo- and polyglucosylated conjugates, the amount of which was higher from gallic acid than from caffeic acid. Profile analysis tensiometry suggested that, in contrast to unmodified dextrans, oligo- and polymeric glucoconjugates of gallic acid are highly interfacially active. Overall, we provide the first detailed characterization of enzymatically conjugated oligo- and polymeric dextrans, which may have further potential as functional ingredients.
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16
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Klingel T, Hadamjetz M, Fischer A, Wefers D. Glucosylation of flavonoids and flavonoid glycosides by mutant dextransucrase from Lactobacillus reuteri TMW 1.106. Carbohydr Res 2019; 483:107741. [DOI: 10.1016/j.carres.2019.107741] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/09/2019] [Accepted: 07/09/2019] [Indexed: 02/08/2023]
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17
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Núñez-López G, Herrera-González A, Hernández L, Amaya-Delgado L, Sandoval G, Gschaedler A, Arrizon J, Remaud-Simeon M, Morel S. Fructosylation of phenolic compounds by levansucrase from Gluconacetobacter diazotrophicus. Enzyme Microb Technol 2019; 122:19-25. [DOI: 10.1016/j.enzmictec.2018.12.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/11/2018] [Accepted: 12/03/2018] [Indexed: 02/06/2023]
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18
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Daudé D, Vergès A, Cambon E, Emond S, Tranier S, André I, Remaud-Siméon M. Neutral Genetic Drift-Based Engineering of a Sucrose-Utilizing Enzyme toward Glycodiversification. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03609] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David Daudé
- Laboratoire d’Ingénierie des Systèmes Biologiques et Procédés (LISBP), Université de Toulouse, CNRS, INRA, INSA, 135, avenue de Rangueil, F-31077 cedex 04 Toulouse, France
| | - Alizée Vergès
- Laboratoire d’Ingénierie des Systèmes Biologiques et Procédés (LISBP), Université de Toulouse, CNRS, INRA, INSA, 135, avenue de Rangueil, F-31077 cedex 04 Toulouse, France
| | - Emmanuelle Cambon
- Laboratoire d’Ingénierie des Systèmes Biologiques et Procédés (LISBP), Université de Toulouse, CNRS, INRA, INSA, 135, avenue de Rangueil, F-31077 cedex 04 Toulouse, France
| | - Stéphane Emond
- Laboratoire d’Ingénierie des Systèmes Biologiques et Procédés (LISBP), Université de Toulouse, CNRS, INRA, INSA, 135, avenue de Rangueil, F-31077 cedex 04 Toulouse, France
| | - Samuel Tranier
- Département Biophysique Structurale, Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, Université Paul Sabatier, CNRS, F-31077 Toulouse, France
| | - Isabelle André
- Laboratoire d’Ingénierie des Systèmes Biologiques et Procédés (LISBP), Université de Toulouse, CNRS, INRA, INSA, 135, avenue de Rangueil, F-31077 cedex 04 Toulouse, France
| | - Magali Remaud-Siméon
- Laboratoire d’Ingénierie des Systèmes Biologiques et Procédés (LISBP), Université de Toulouse, CNRS, INRA, INSA, 135, avenue de Rangueil, F-31077 cedex 04 Toulouse, France
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19
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Jang SW, Cho CH, Jung YS, Rha C, Nam TG, Kim DO, Lee YG, Baek NI, Park CS, Lee BH, Lee SY, Shin HS, Seo DH. Enzymatic synthesis of α-flavone glucoside via regioselective transglucosylation by amylosucrase from Deinococcus geothermalis. PLoS One 2018; 13:e0207466. [PMID: 30452462 PMCID: PMC6242681 DOI: 10.1371/journal.pone.0207466] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/31/2018] [Indexed: 12/19/2022] Open
Abstract
α-Flavone glycosides have beneficial properties for applications in the pharmaceutical, cosmetic, and food industries. However, their chemical syntheses are often limited by a low efficiency or scarcity of substrates. In this study, α-flavone glucosides were enzymatically synthesized by amylosucrase from Deinococcus geothermalis (DGAS) using sucrose and various flavones as a donor for glucosyl units and acceptors, respectively. Luteolin was the most effective acceptor in the transglucosylation reaction using DGAS among nine flavone materials (apigenin, chrysin, 6,7-dihydroxyflavone, homoorientin, 7-hydroxyflavone, isorhoifolin, luteolin, luteolin-3′,7-diglucoside, and orientin). The highest production yield of luteolin glucoside was 86%, with a 7:1 molar ratio of donor to acceptor molecules, in 50 mM Tris-HCl buffer (pH 7) at 37°C for 24 h using 2 U of DGAS. The synthesized luteolin glucoside was identified as luteolin-4′-O-α-D-glucopyranoside with a glucose molecule linked to the C-4′ position on the B-ring of luteolin via an α-glucosidic bond, as determined by 1H and 13C nuclear magnetic resonance. This result clearly confirmed that the glucosylated luteolin was successfully synthesized by DGAS and it can be applied as a functional ingredient. Furthermore, this approach using DGAS has the potential to be utilized for the synthesis of various glucosylated products using different types of polyphenols to enhance their functionalities.
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Affiliation(s)
- Se-Won Jang
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
- Department of Food Science and Biotechnology, College of BioNano Technology, Gachon University, Seongnam, Republic of Korea
| | - Chi Heung Cho
- Research Group of Industrial Technology, World Institute of Kimchi, Gwangju, Republic of Korea
| | - Young-Sung Jung
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Chansu Rha
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Tae-Gyu Nam
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
| | - Dae-Ok Kim
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Yeong-Geun Lee
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Nam-In Baek
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Cheon-Seok Park
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Byung-Hoo Lee
- Department of Food Science and Biotechnology, College of BioNano Technology, Gachon University, Seongnam, Republic of Korea
| | - So-Young Lee
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
| | - Hee Soon Shin
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
| | - Dong-Ho Seo
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
- * E-mail:
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20
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Malbert Y, Moulis C, Brison Y, Morel S, André I, Remaud-Simeon M. Engineering a branching sucrase for flavonoid glucoside diversification. Sci Rep 2018; 8:15153. [PMID: 30310109 PMCID: PMC6181985 DOI: 10.1038/s41598-018-33394-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 09/21/2018] [Indexed: 01/01/2023] Open
Abstract
Enzymatic glycosylation of flavonoids is an efficient mean to protect aglycons against degradation while enhancing their solubility, life time and, by extension, their bioavailability which is critical for most of their applications in health care. To generate a valuable enzymatic platform for flavonoid glucosylation, an α-1,2 branching sucrase belonging to the family 70 of glycoside-hydrolases was selected as template and subsequently engineered. Two libraries of variants targeting pair-wise mutations inferred by molecular docking simulations were generated and screened for quercetin glucosylation using sucrose as a glucosyl donor. Only a limited number of variants (22) were retained on the basis of quercetin conversion and product profile. Their acceptor promiscuity towards five other flavonoids was subsequently assessed, and the automated screening effort revealed variants showing remarkable ability for luteolin, morin and naringenin glucosylation with conversion ranging from 30% to 90%. Notably, naringenin and morin, a priori considered as recalcitrant compounds to glucosylation using this α-transglucosylases, could also be modified. The approach reveals the potential of small platforms of engineered GH70 α-transglucosylases and opens up the diversity of flavonoid glucosides to molecular structures inaccessible yet.
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Affiliation(s)
- Yannick Malbert
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Claire Moulis
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Yoann Brison
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Sandrine Morel
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Isabelle André
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Magali Remaud-Simeon
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France.
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21
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Tian Y, Xu W, Zhang W, Zhang T, Guang C, Mu W. Amylosucrase as a transglucosylation tool: From molecular features to bioengineering applications. Biotechnol Adv 2018; 36:1540-1552. [PMID: 29935268 DOI: 10.1016/j.biotechadv.2018.06.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 06/10/2018] [Accepted: 06/15/2018] [Indexed: 02/04/2023]
Abstract
Amylosucrase (EC 2.4.1.4, ASase), an outstanding sucrose-utilizing transglucosylase in the glycoside hydrolase family 13, can produce glucans with only α-1,4 linkages. Generally, on account of a double-displacement mechanism, ASase can catalyze polymerization, isomerization, and hydrolysis reactions with sucrose as the sole substrate, and has transglycosylation capacity to attach glucose molecules from sucrose to extra glycosyl acceptors. Based on extensive enzymology research, this review presents the characteristics of various ASases, including their microbial metabolism, preparation, and enzymatic properties, and exhibits structure-based strategies in the improvement of activity, specificity, and thermostability. As a vital transglucosylation tool of producing sugars, carbohydrate-based bioactive compounds, and materials, the bioengineering applications of ASases are also systematically summarized.
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Affiliation(s)
- Yuqing Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Tao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Cuie Guang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China.
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22
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Kraus M, Grimm C, Seibel J. Switching enzyme specificity from phosphate to resveratrol glucosylation. Chem Commun (Camb) 2018; 53:12181-12184. [PMID: 29057405 DOI: 10.1039/c7cc05993k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Here we present a point mutation-triggered domain shift which switches the acceptor preference of a sucrose phosphorylase from phosphate to a variety of large polyphenolic compounds including resveratrol and quercetin, enabling their efficient glucosylation. The variant possesses a high affinity for aromatic substrates due to newly introduced π-π- and hydrophobic interactions in the altered active site. The domain shift brings about a substantially enlarged and multifunctional active site for polyphenol glucosylation and rare disaccharide production. The crystal structure of the variant with its product resveratrol-3-α-d-glucoside allows the prediction of the substrate scope and regioselectivity of the aromatic compounds' glucosylation sites.
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Affiliation(s)
- Michael Kraus
- Department of Organic Chemistry, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
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23
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Vergès A, Cambon E, Barbe S, Moulis C, Remaud-Siméon M, André I. Novel product specificity toward erlose and panose exhibited by multisite engineered mutants of amylosucrase. Protein Sci 2017; 26:566-577. [PMID: 28019698 DOI: 10.1002/pro.3106] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 11/07/2022]
Abstract
A computer-aided engineering approach recently enabled to deeply reshape the active site of N. polysaccharea amylosucrase for recognition of non-natural acceptor substrates. Libraries of variants were constructed and screened on sucrose allowing the identification of 17 mutants able to synthesize molecules from sole sucrose, which are not synthesized by the parental wild-type enzyme. Three of the isolated mutants as well as the new products synthesized were characterized in details. Mutants contain between 7 and 11 mutations in the active site and the new molecules were identified as being a sucrose derivative, named erlose (α-d-glucopyranosyl-(1→4)-α-d-glucopyranosyl-(1→2)-β-d-Fructose), and a new malto-oligosaccharide named panose (α-d-glucopyranosyl-(1→6)-α-d-glucopyranosyl-(1→4)-α-d-Glucose). These product specificities were never reported for none of the amylosucrases characterized to date, nor their engineered variants. Optimization of the production of these trisaccharides of potential interest as sweeteners or prebiotic molecules was carried out. Molecular modelling studies were also performed to shed some light on the molecular factors involved in the novel product specificities of these amylosucrase variants.
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Affiliation(s)
- Alizée Vergès
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Emmanuelle Cambon
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Sophie Barbe
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Claire Moulis
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Magali Remaud-Siméon
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
| | - Isabelle André
- Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés, Université de Toulouse, CNRS, INRA, INSA, Toulouse, 31400, France
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24
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Devlamynck T, Te Poele EM, Meng X, van Leeuwen SS, Dijkhuizen L. Glucansucrase Gtf180-ΔN of Lactobacillus reuteri 180: enzyme and reaction engineering for improved glycosylation of non-carbohydrate molecules. Appl Microbiol Biotechnol 2016; 100:7529-39. [PMID: 27052379 PMCID: PMC4980424 DOI: 10.1007/s00253-016-7476-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/08/2016] [Accepted: 03/15/2016] [Indexed: 12/24/2022]
Abstract
Glucansucrases have a broad acceptor substrate specificity and receive increased attention as biocatalysts for the glycosylation of small non-carbohydrate molecules using sucrose as donor substrate. However, the main glucansucrase-catalyzed reaction results in synthesis of α-glucan polysaccharides from sucrose, and this strongly impedes the efficient glycosylation of non-carbohydrate molecules and complicates downstream processing of glucosylated products. This paper reports that suppressing α-glucan synthesis by mutational engineering of the Gtf180-ΔN enzyme of Lactobacillus reuteri 180 results in the construction of more efficient glycosylation biocatalysts. Gtf180-ΔN mutants (L938F, L981A, and N1029M) with an impaired α-glucan synthesis displayed a substantial increase in monoglycosylation yields for several phenolic and alcoholic compounds. Kinetic analysis revealed that these mutants possess a higher affinity for the model acceptor substrate catechol but a lower affinity for its mono-α-d-glucoside product, explaining the improved monoglycosylation yields. Analysis of the available high resolution 3D crystal structure of the Gtf180-ΔN protein provided a clear understanding of how mutagenesis of residues L938, L981, and N1029 impaired α-glucan synthesis, thus yielding mutants with an improved glycosylation potential.
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Affiliation(s)
- Tim Devlamynck
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
- Centre for Industrial Biotechnology and Biocatalysis, Department of Biochemical and Microbial Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Evelien M Te Poele
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Xiangfeng Meng
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Sander S van Leeuwen
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Lubbert Dijkhuizen
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands.
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25
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Recent developments in the enzymatic O-glycosylation of flavonoids. Appl Microbiol Biotechnol 2016; 100:4269-81. [PMID: 27029191 DOI: 10.1007/s00253-016-7465-0] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/09/2016] [Accepted: 03/12/2016] [Indexed: 01/04/2023]
Abstract
The glycosylation of bioactive compounds, such as flavonoids, is of particular relevance, as it modulates many of their pharmacokinetic parameters. This article reviews the literature between 2010 and the end of 2015 that deals with the enzymatic O-glycosylation of this class of compounds. Enzymes of glycosyltransferase family 1 remain the biocatalysts of choice for glycodiversification of flavonoids, in spite of relatively low yields. Transfers of 14 different sugars, in addition to glucose, were reported. Several Escherichia coli strains were metabolically engineered to enable a (more efficient) synthesis of the required donor during in vivo glycosylations. For the transfer of glucose, enzymes of glycoside hydrolase families 13 and 70 were successfully assayed with several flavonoids. The number of acceptor substrates and of regiospecificities characterized so far is smaller than for glycosyltransferases. However, their glycosyl donors are much cheaper and yields are considerably higher. A few success stories of enzyme engineering were reported. These improved the catalytic efficiency as well as donor, acceptor, or product ranges. Currently, the development of appropriate high-throughput screening systems appears to be the major bottleneck for this powerful technology.
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26
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Liang C, Zhang Y, Jia Y, Wenzhao Wang, Li Y, Lu S, Jin JM, Tang SY. Engineering a Carbohydrate-processing Transglycosidase into Glycosyltransferase for Natural Product Glycodiversification. Sci Rep 2016; 6:21051. [PMID: 26869143 PMCID: PMC4751530 DOI: 10.1038/srep21051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 01/18/2016] [Indexed: 01/12/2023] Open
Abstract
Glycodiversification broadens the scope of natural product-derived drug discovery. The acceptor substrate promiscuity of glucosyltransferase-D (GTF-D), a carbohydrate-processing enzyme from Streptococcus mutans, was expanded by protein engineering. Mutants in a site-saturation mutagenesis library were screened on the fluorescent substrate 4-methylumbelliferone to identify derivatives with improved transglycosylation efficiency. In comparison to the wild-type GTF-D enzyme, mutant M4 exhibited increased transglycosylation capabilities on flavonoid substrates including catechin, genistein, daidzein and silybin, using the glucosyl donor sucrose. This study demonstrated the feasibility of developing natural product glycosyltransferases by engineering transglycosidases that use donor substrates cheaper than NDP-sugars, and gave rise to a series of α-glucosylated natural products that are novel to the natural product reservoir. The solubility of the α-glucoside of genistein and the anti-oxidant capability of the α-glucoside of catechin were also studied.
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Affiliation(s)
- Chaoning Liang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yi Zhang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yan Jia
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing 100048, China
| | - Wenzhao Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Youhai Li
- School of Chemistry and Biotechnology, Yunnan Minzu University, Kunming, China
| | - Shikun Lu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jian-Ming Jin
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing 100048, China
- School of Chemistry and Biotechnology, Yunnan Minzu University, Kunming, China
| | - Shuang-Yan Tang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
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27
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Verges A, Cambon E, Barbe S, Salamone S, Le Guen Y, Moulis C, Mulard LA, Remaud-Siméon M, André I. Computer-Aided Engineering of a Transglycosylase for the Glucosylation of an Unnatural Disaccharide of Relevance for Bacterial Antigen Synthesis. ACS Catal 2015. [DOI: 10.1021/cs501288r] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Alizée Verges
- Université de Toulouse; INSA,UPS,INP;
LISBP, 135 Avenue de Rangueil, F-31077 Toulouse, France
- CNRS, UMR5504, F-31400 Toulouse, France
- INRA, UMR792 Ingénierie
des Systèmes Biologiques et des Procédés, F-31400 Toulouse, France
| | - Emmanuelle Cambon
- Université de Toulouse; INSA,UPS,INP;
LISBP, 135 Avenue de Rangueil, F-31077 Toulouse, France
- CNRS, UMR5504, F-31400 Toulouse, France
- INRA, UMR792 Ingénierie
des Systèmes Biologiques et des Procédés, F-31400 Toulouse, France
| | - Sophie Barbe
- Université de Toulouse; INSA,UPS,INP;
LISBP, 135 Avenue de Rangueil, F-31077 Toulouse, France
- CNRS, UMR5504, F-31400 Toulouse, France
- INRA, UMR792 Ingénierie
des Systèmes Biologiques et des Procédés, F-31400 Toulouse, France
| | - Stéphane Salamone
- Institut Pasteur,
Unité de Chimie des Biomolécules, 28 rue du Dr. Roux, F-75724 Paris Cedex 15, France
- CNRS UMR3523,
Institut Pasteur, F-75015 Paris, France
| | - Yann Le Guen
- Institut Pasteur,
Unité de Chimie des Biomolécules, 28 rue du Dr. Roux, F-75724 Paris Cedex 15, France
- CNRS UMR3523,
Institut Pasteur, F-75015 Paris, France
- Université Paris Descartes Sorbonne Paris Cité, Institut Pasteur, F-75015 Paris, France
| | - Claire Moulis
- Université de Toulouse; INSA,UPS,INP;
LISBP, 135 Avenue de Rangueil, F-31077 Toulouse, France
- CNRS, UMR5504, F-31400 Toulouse, France
- INRA, UMR792 Ingénierie
des Systèmes Biologiques et des Procédés, F-31400 Toulouse, France
| | - Laurence A. Mulard
- Institut Pasteur,
Unité de Chimie des Biomolécules, 28 rue du Dr. Roux, F-75724 Paris Cedex 15, France
- CNRS UMR3523,
Institut Pasteur, F-75015 Paris, France
| | - Magali Remaud-Siméon
- Université de Toulouse; INSA,UPS,INP;
LISBP, 135 Avenue de Rangueil, F-31077 Toulouse, France
- CNRS, UMR5504, F-31400 Toulouse, France
- INRA, UMR792 Ingénierie
des Systèmes Biologiques et des Procédés, F-31400 Toulouse, France
| | - Isabelle André
- Université de Toulouse; INSA,UPS,INP;
LISBP, 135 Avenue de Rangueil, F-31077 Toulouse, France
- CNRS, UMR5504, F-31400 Toulouse, France
- INRA, UMR792 Ingénierie
des Systèmes Biologiques et des Procédés, F-31400 Toulouse, France
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