1
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Fusion of Oligopeptide to the C Terminus of α-Glucuronidase from Thermotoga maritima Improves the Catalytic Efficiency for Hemicellulose Biotransformation. Mol Biotechnol 2022; 65:741-751. [PMID: 36175749 DOI: 10.1007/s12033-022-00569-y] [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: 09/23/2021] [Accepted: 09/15/2022] [Indexed: 10/14/2022]
Abstract
Fusion protein combined the oligopeptide (HQAFFHA) with the C terminus of α-glucuronidase from Thermotoga maritima was produced in E. coli and purified for characterization and applications of glucuronic and glucaric acid production. The fusion protein with oligopeptide exhibited a 2.97-fold higher specific activity than individual protein. Their catalytic efficiency kcat/Km and kcat increased from 469.3 ± 2.6 s-1 (g mL-1)-1 and 62.4 ± 0.9 s-1 to 2209.5 ± 26.3 s-1 (g mL-1)-1 and 293.9 ± 4.9 s-1, respectively. Fusion protein had similar temperature and pH profiles to those without oligopeptide, but the thermal stability decreases and the pH stability shifts to alkaline. Using beech xylan hydrolysate as a substrate, the glucuronic acid yield of fusion enzyme increased by 9.94% compared with its parent at 65 °C pH 8.5 for 10 h, and can hydrolyze corn cob xylan with xylanase to obtain glucuronic acid, and can be combined with uronate dehydrogenase to obtain high-added value glucaric acid. Homologous modeling analysis revealed the factors contributing to the high catalytic efficiency of fusion enzyme. These results show that the peptide fusion strategy described here may be useful for improving the catalytic efficiency and stability of other industrial enzymes, and has great potential for producing high value-added products from agricultural waste.
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2
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Delgado L, Heckmann CM, Di Pisa F, Gourlay L, Paradisi F. Release of Soybean Isoflavones by Using a β-Glucosidase from Alicyclobacillus herbarius. Chembiochem 2021; 22:1223-1231. [PMID: 33237595 PMCID: PMC8048572 DOI: 10.1002/cbic.202000688] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/24/2020] [Indexed: 12/17/2022]
Abstract
β-Glucosidases are used in the food industry to hydrolyse glycosidic bonds in complex sugars, with enzymes sourced from extremophiles better able to tolerate the process conditions. In this work, a novel β-glycosidase from the acidophilic organism Alicyclobacillus herbarius was cloned and heterologously expressed in Escherichia coli BL21(DE3). AheGH1 was stable over a broad range of pH values (5-11) and temperatures (4-55 °C). The enzyme exhibited excellent tolerance to fructose and good tolerance to glucose, retaining 65 % activity in the presence of 10 % (w/v) glucose. It also tolerated organic solvents, some of which appeared to have a stimulating effect, in particular ethanol with a 1.7-fold increase in activity at 10 % (v/v). The enzyme was then applied for the cleavage of isoflavone from isoflavone glucosides in an ethanolic extract of soy flour, to produce soy isoflavones, which constitute a valuable food supplement, full conversion was achieved within 15 min at 30 °C.
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Affiliation(s)
- Lidia Delgado
- University of Nottingham, School of ChemistryDepartment of Chemical BiologyUniversity ParkNottinghamNG7 2RDUK
| | - Christian M. Heckmann
- University of Nottingham, School of ChemistryDepartment of Chemical BiologyUniversity ParkNottinghamNG7 2RDUK
| | - Flavio Di Pisa
- Dipartimento di BioscienzeUniversità di MilanoVia Celoria 2620133MilanItaly
| | - Louise Gourlay
- Dipartimento di BioscienzeUniversità di MilanoVia Celoria 2620133MilanItaly
| | - Francesca Paradisi
- University of Nottingham, School of ChemistryDepartment of Chemical BiologyUniversity ParkNottinghamNG7 2RDUK
- University of BernDepartment of Chemistry and BiochemistryFreiestrasse 33012BernSwitzerland
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3
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Soluble Production, Characterization, and Structural Aesthetics of an Industrially Important Thermostable β-Glucosidase from Clostridium thermocellum in Escherichia coli. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9308593. [PMID: 31828148 PMCID: PMC6885295 DOI: 10.1155/2019/9308593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/16/2019] [Accepted: 10/01/2019] [Indexed: 12/02/2022]
Abstract
This study aims to achieve high-level soluble expression and characterization of a thermostable industrially important enzyme, i.e., beta-glucosidase (BglA; EC: 3.2.1.21), from Clostridium thermocellum (C. thermocellum) by cloning in an Escherichia coli (E. coli) expression system. BglA was expressed as a partially soluble component of total cellular protein (TCP) having a molecular weight of ∼53 kDa with 50% of it as soluble fraction. Purification in two steps, namely, heat inactivation and Ni-chromatography, yielded approximately 30% and 15% of BglA, respectively. The purified (∼98%) BglA enzyme showed promising activity against the salicin substrate having a Km of 19.83 mM and a Vmax of 0.12 μmol/min. The enzyme had an optimal temperature and pH of 50°C and 7.0, respectively, while retaining its catalytic activity up till 60°C and at pH 7. The optimized maximum expression level was attained in M9NG medium with lactose as an inducer. Circular dichroism revealed presence of alpha helix (43.50%) and small percentage of beta sheets (10.60%). Factors like high-end cellulolytic activity, fair thermal stability, stability against low pH, and ease of purification make BglA from C. thermocellum a potential candidate in industrial applications.
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4
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Doan DT, Luu DP, Nguyen TD, Hoang Thi B, Pham Thi HM, Do HN, Luu VH, Pham TD, Than VT, Pham Thi HH, Pham MQ, Tran QT. Isolation of Penicillium citrinum from Roots of Clerodendron cyrtophyllum and Application in Biosynthesis of Aglycone Isoflavones from Soybean Waste Fermentation. Foods 2019; 8:E554. [PMID: 31698736 PMCID: PMC6915340 DOI: 10.3390/foods8110554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 10/24/2019] [Accepted: 10/28/2019] [Indexed: 11/16/2022] Open
Abstract
Soybeans offer an abundant source of isoflavones, which confer useful bioactivities when existing in aglycone forms. The conversion of isoflavones into aglycones via fermentation of soybean products is often realized by β-glucosidase, an enzyme produced by fungi. In this study, a filamentous fungus, Clerodendron cyrtophyllum, was isolated from root of Clerodendron cyrtophyllum Turcz, which was able to produce the highest activity of β-glucosidase up to 33.72 U/mL at 144 h during fermentation on Potato Dextrose Broth (PDB). The obtained fungus was grown on isoflavones-rich soybean extract to produce genistein and daidzein, achieving the conversion rate of 98.7%. Genistein and daidzein were isolated and purified by column chromatography using hexane/acetone (29:1/1:1), reaching purities of over 90% of total isoflavones, as identified and determined by TLC, LC-MS/MS, and 1H and 13C NMR spectroscopy. These results imply that the isolated P. citrinum is a potential fungal strain for industrial-scale production of genistein and daidzein from isoflavones-containing soybean extracts. These products may serve as potential raw materials for manufacture of functional foods that are based on aglycones.
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Affiliation(s)
- Duy Tien Doan
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (D.T.D.); (D.P.L.); (T.D.N.)
| | - Duc Phuong Luu
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (D.T.D.); (D.P.L.); (T.D.N.)
| | - Thanh Duong Nguyen
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (D.T.D.); (D.P.L.); (T.D.N.)
| | - Bich Hoang Thi
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
| | - Hong Minh Pham Thi
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
| | - Huu Nghi Do
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
| | - Van Huyen Luu
- Hanoi University of Natural Resources and Environment, Hanoi 10072, Vietnam;
| | - The Dan Pham
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Vietnam Academy of Science and Technology, University of Science and Technology of Hanoi, Hanoi 10072, Vietnam
| | - Van Thai Than
- NTT Institute of High Technology, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam;
| | - Hai Ha Pham Thi
- Faculty of Biotechnology, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Minh Quan Pham
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
| | - Quoc Toan Tran
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
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5
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Xue Y, Zhang Z, Hou J, Cao Z, Zhang L, Lou F, Xu P. Resveratrol and arctigenin production from polydatin and arctiin respectively by a thermostable β-glucosidase from Thermotoga maritima. J Carbohydr Chem 2019. [DOI: 10.1080/07328303.2018.1541996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yemin Xue
- Department of Food Science and Nutrition, GinLing College, Nanjing Normal University, Nanjing, PR China
| | - Zonghui Zhang
- Department of Food Science and Nutrition, GinLing College, Nanjing Normal University, Nanjing, PR China
| | - Jingjing Hou
- Department of Food Science and Nutrition, GinLing College, Nanjing Normal University, Nanjing, PR China
| | - Zhigang Cao
- Department of Urology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Lingxian Zhang
- Department of Food Science and Nutrition, GinLing College, Nanjing Normal University, Nanjing, PR China
| | - Fen Lou
- Department of Food Science and Nutrition, GinLing College, Nanjing Normal University, Nanjing, PR China
| | - Puxu Xu
- Department of Food Science and Nutrition, GinLing College, Nanjing Normal University, Nanjing, PR China
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6
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Yoshiara LY, Madeira TB, de Camargo AC, Shahidi F, Ida EI. Multistep Optimization of β-Glucosidase Extraction from Germinated Soybeans ( Glycine max L. Merril) and Recovery of Isoflavone Aglycones. Foods 2018; 7:E110. [PMID: 30011817 PMCID: PMC6068559 DOI: 10.3390/foods7070110] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/10/2018] [Accepted: 07/12/2018] [Indexed: 12/13/2022] Open
Abstract
Epicotyls from germinated soybeans (EGS) have great potential as sources of endogenous β-glucosidase. Furthermore, this enzyme may improve the conversion of isoflavones into their corresponding aglycones. β-Glucosidase may also increase the release of aglycones from the cell wall of the plant materials. Therefore, the aim of this work was to optimize both the extraction of β-glucosidase from EGS and to further examine its application in defatted soybean cotyledon to improve the recovery of aglycones, which were evaluated by ultra-high performance liquid chromatography (UHPLC). A multistep optimization was carried out and the effects of temperature and pH were investigated by applying a central composite design. The linear effect of pH and the quadratic effect of pH and temperature were significant for the extraction of β-glucosidase and recovery aglycones, respectively. Optimum extraction of β-glucosidase from EGS occurred at 30 °C and pH 5.0. Furthermore, the maximum recovery of aglycones (98.7%), which occurred at 35 °C and pH 7.0⁻7.6 during 144 h of germination, increased 8.5 times with respect to the lowest concentration. The higher bioaccessibility of aglycones when compared with their conjugated counterparts is well substantiated. Therefore, the data provided in this contribution may be useful for enhancing the benefits of soybean, their products, and/or their processing by-products.
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Affiliation(s)
- Luciane Yuri Yoshiara
- Food Science Department, Londrina State University, Rod. Celso Garcia, KM 380, 86051-990 Londrina, PR, Brazil.
| | - Tiago Bervelieri Madeira
- Chemistry Department, Londrina State University, Rod. Celso Garcia, KM 380, 86051-990 Londrina, PR, Brazil.
| | - Adriano Costa de Camargo
- Food Science Department, Londrina State University, Rod. Celso Garcia, KM 380, 86051-990 Londrina, PR, Brazil.
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, NL A1B 3X9, Canada.
| | - Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, NL A1B 3X9, Canada.
| | - Elza Iouko Ida
- Food Science Department, Londrina State University, Rod. Celso Garcia, KM 380, 86051-990 Londrina, PR, Brazil.
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7
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Li Y, Xue Y, Cao Z, Zhou T, Alnadari F. Characterization of a uronate dehydrogenase from Thermobispora bispora for production of glucaric acid from hemicellulose substrate. World J Microbiol Biotechnol 2018; 34:102. [DOI: 10.1007/s11274-018-2486-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 06/18/2018] [Indexed: 10/28/2022]
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8
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Subramaniyan V, Mathiyalagan S, Praveenkumar A, Srinivasan P, Palani M, Ravichandran V, Nallasamy P. Molecular docking and ADME properties of bioactive molecules against human acid-beta-glucosidase enzyme, cause of Gaucher's disease. In Silico Pharmacol 2018; 6:3. [PMID: 30607316 DOI: 10.1007/s40203-018-0039-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 03/02/2018] [Indexed: 12/31/2022] Open
Abstract
Gaucher disease is one of the common lysosomal storage diseases widespread all over the world. It is divided into three types such as type 1 (non-neuropathic), type 2 (acute infantile neuropathic) and type 3 (chronic neuropathic). This is caused by the deficiency of glucocerebrosidases from the midpoint nervous system. Recent years, computational tools are very important and play a vital role in identifying new leads for disease treatment. This study was performed to screen the effective bioactive molecules against glucocerebrosidases. In this study, Molecular docking and ADME profiles of bioactive molecules were found with the help of Schrödinger software. Results showed that, (-)-epicatechin are having best docking score and good binding affinity than other ligands. Hence, we concluded that the (-)-epicatechin may be a better drug candidate for gaucher disease which can be explored further.
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Affiliation(s)
- Vijayakumar Subramaniyan
- 1Computational Phytochemistry Lab, P.G. and Research Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur (Dt), Tamil Nadu 613 503 India
| | - Sathiya Mathiyalagan
- 1Computational Phytochemistry Lab, P.G. and Research Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur (Dt), Tamil Nadu 613 503 India.,2State Key Laboratory of Microbial Technology, Helmholtz Institute of Biotechnology, School of Life Science, Shandong University, Jinan, People's Republic of China.,Department of Zoology, Arulmigu Palani Andavar College of Arts and Culture, Palani, Tamil Nadu India
| | - Arulmozhi Praveenkumar
- 1Computational Phytochemistry Lab, P.G. and Research Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur (Dt), Tamil Nadu 613 503 India.,2State Key Laboratory of Microbial Technology, Helmholtz Institute of Biotechnology, School of Life Science, Shandong University, Jinan, People's Republic of China.,Department of Zoology, Arulmigu Palani Andavar College of Arts and Culture, Palani, Tamil Nadu India
| | - Prabhu Srinivasan
- 1Computational Phytochemistry Lab, P.G. and Research Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur (Dt), Tamil Nadu 613 503 India
| | - Manogar Palani
- 1Computational Phytochemistry Lab, P.G. and Research Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur (Dt), Tamil Nadu 613 503 India
| | - Vinothkannan Ravichandran
- 2State Key Laboratory of Microbial Technology, Helmholtz Institute of Biotechnology, School of Life Science, Shandong University, Jinan, People's Republic of China
| | - Parameswari Nallasamy
- Department of Zoology, Arulmigu Palani Andavar College of Arts and Culture, Palani, Tamil Nadu India
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9
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Haq IU, Akram F. Enhanced Production of a Recombinant Multidomain Thermostable GH9 Processive Endo-1,4-β-Glucanase (CenC) from Ruminiclostridium thermocellum in a Mesophilic Host Through Various Cultivation and Induction Strategies. Appl Biochem Biotechnol 2017; 183:171-188. [PMID: 28247309 DOI: 10.1007/s12010-017-2437-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 02/10/2017] [Indexed: 01/09/2023]
Abstract
Commonly, unintentional induction and inadvertently preparing medium for engineered Escherichia coli BL21 CodonPlus (DE3)-RIPL, give poor or variable yields of heterologous proteins. Therefore, to enhance the activity and production of an industrially relevant recombinant processive endo-1,4-β-glucanase (CenC) propagated in Escherichia coli BL21 CodonPlus(DE3)-RIPL through various cultivation and induction strategies. Investigation of various growth media and induction parameters revealed that high-cell-density and optimal CenC expression were obtained in ZYBM9 medium induced either with 0.5 mM IPTG/150 mM lactose, after 6 h induction at 37 °C; and before induction, bacterial cells were given heat shock (42 °C) for 1 h when culture density (OD600nm) reached at 0.6. Intracellular enzyme activity was enhanced by 6.67 and 3.20-fold in ZYBM9 and 3×ZYBM9 medium, respectively, under optimal conditions. Using YNG auto-induction medium, activity was 2.5-fold increased after 10 h incubation at 37 °C. Approximately similar results were obtained by transferring the optimized process at the bioreactor level. Results showed that the effective process strategy is essential to enhance recombinant bacterial cell mass and enzyme production from small to large-scale. To the best of our knowledge, this is the first ever report on enhanced production of thermostable processive endo-1,4-β-glucanase cloned from Ruminiclostridium thermocellum, which is a suitable candidate for industrial applications. Graphical Abstract Flow Chart Summary of Enhanced Production of a Recombinant Multidomain Thermostable GH9 Processive Endo-1,4-β-glucanase from Ruminiclostridium thermocellum.
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Affiliation(s)
- Ikram Ul Haq
- Institute of Industrial Biotechnology, GC University, Lahore, -54000, Pakistan
| | - Fatima Akram
- Institute of Industrial Biotechnology, GC University, Lahore, -54000, Pakistan.
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10
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Wang Y, Song X, Zhang S, Li J, Shu Z, He C, Huang Q, Yao L. Improving the activity of Trichoderma reesei cel7B through stabilizing the transition state. Biotechnol Bioeng 2015; 113:1171-7. [PMID: 26616246 DOI: 10.1002/bit.25887] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 11/11/2015] [Accepted: 11/17/2015] [Indexed: 11/10/2022]
Abstract
Trichoderma reesei (Tr.) cellulases, which convert cellulose to reducing sugars, are a promising catalyst used in the lignocellulosic biofuel production. Improving Tr. cellulases activity, though very difficult, is highly desired due to the recalcitrance of lignocellulose. Meanwhile, it is preferable to enhance the cellulase's promiscuity so that substrates other than cellulose can also be hydrolyzed. In this work, an attempt is made to improve the catalytic activity of a major endogluanase Tr. Cel7B against xylan which crosslinks with cellulose in lignocellulose. By using quantum mechanics/molecular mechanics (QM/MM) molecular dynamics (MD) simulations, the transition state of the xylo-oligosaccharide hydrolysis is identified. Then, mutations are introduced and their effect on the transition state stabilization is ranked based on the free energy calculations. Seven top ranked mutants are evaluated experimentally. Three mutants A208Q, A222D, and G230R show a higher activity than the wild-type Tr. Cel7B in the hydrolysis of xylan (by up to 47%) as well as filter paper (by up to 50%). The combination of the single mutants can further improve the enzyme activity. Our work demonstrates that the free energy method is effective in engineering the Tr. Cel7B activity against xylan and cellulose, and thus may also be useful for improving the activity of other Tr. cellulases. Biotechnol. Bioeng. 2016;113: 1171-1177. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Yefei Wang
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.,Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266061, China
| | - Xiangfei Song
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.,Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266061, China
| | - Shujun Zhang
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.,Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266061, China
| | - Jingwen Li
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.,Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266061, China
| | - Zhiyu Shu
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.,Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266061, China
| | - Chunyan He
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.,Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266061, China
| | - Qingshan Huang
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.,Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266061, China
| | - Lishan Yao
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China. .,Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266061, China.
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11
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Xue YM, Xu CY, Hou JJ, Li XQ, Cao ZG. Enhanced soluble expression of a thermostble β-glucosidase from Thermotoga maritima in Escherichia coli and its applicaton in immobilization. APPL BIOCHEM MICRO+ 2015. [DOI: 10.1134/s0003683815030175] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Byun DH, Choi HJ, Lee HW, Jeon HY, Choung WJ, Shim JH. Properties and applications of β-glycosidase fromBacteroides thetaiotaomicronthat specifically hydrolyses isoflavone glycosides. Int J Food Sci Technol 2015. [DOI: 10.1111/ijfs.12786] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Da-Hye Byun
- Department of Food Science and Nutrition; and Center for Aging and Health Care; Hallym University; 1 Hallymdaehak-gil Chuncheon Gwangwon-do 200-702 Korea
| | - Hye-Jeong Choi
- Department of Food Science and Nutrition; and Center for Aging and Health Care; Hallym University; 1 Hallymdaehak-gil Chuncheon Gwangwon-do 200-702 Korea
| | - Hye-Won Lee
- Department of Food Science and Nutrition; and Center for Aging and Health Care; Hallym University; 1 Hallymdaehak-gil Chuncheon Gwangwon-do 200-702 Korea
| | - Hye-Yeon Jeon
- Department of Food Science and Nutrition; and Center for Aging and Health Care; Hallym University; 1 Hallymdaehak-gil Chuncheon Gwangwon-do 200-702 Korea
| | - Woo-Jae Choung
- Department of Food Science and Nutrition; and Center for Aging and Health Care; Hallym University; 1 Hallymdaehak-gil Chuncheon Gwangwon-do 200-702 Korea
| | - Jae-Hoon Shim
- Department of Food Science and Nutrition; and Center for Aging and Health Care; Hallym University; 1 Hallymdaehak-gil Chuncheon Gwangwon-do 200-702 Korea
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13
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Cota J, Corrêa TL, Damásio AR, Diogo JA, Hoffmam ZB, Garcia W, Oliveira LC, Prade RA, Squina FM. Comparative analysis of three hyperthermophilic GH1 and GH3 family members with industrial potential. N Biotechnol 2015; 32:13-20. [DOI: 10.1016/j.nbt.2014.07.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 07/25/2014] [Accepted: 07/25/2014] [Indexed: 10/24/2022]
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Zhang S, Wang Y, Song X, Hong J, Zhang Y, Yao L. Improving Trichoderma reesei Cel7B Thermostability by Targeting the Weak Spots. J Chem Inf Model 2014; 54:2826-33. [DOI: 10.1021/ci500339v] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shujun Zhang
- Laboratory
of Biofuels, Qingdao
Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences, Qingdao, 266061, China
| | - Yefei Wang
- Laboratory
of Biofuels, Qingdao
Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences, Qingdao, 266061, China
| | - Xiangfei Song
- Laboratory
of Biofuels, Qingdao
Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences, Qingdao, 266061, China
| | - Jingbo Hong
- Laboratory
of Biofuels, Qingdao
Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences, Qingdao, 266061, China
| | - Yu Zhang
- Laboratory
of Biofuels, Qingdao
Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences, Qingdao, 266061, China
| | - Lishan Yao
- Laboratory
of Biofuels, Qingdao
Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences, Qingdao, 266061, China
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Wang Q, Xue Y, Wu X. Characterization of a novel thermostable chitin-binding domain and its application in immobilization of a multifunctional hemicellulase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:3074-3081. [PMID: 23470102 DOI: 10.1021/jf3041275] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A novel thermostable chitin-binding domain (Tt-ChBD) of chitinase A1 from Thermoanaerobacterium thermosaccharolyticum DSM571 was cloned, characterized, and compared for its binding activity with another mesophilic chitin-binding domain (Bc-ChBD). Recombinant protein with Tt-ChBD exhibits stronger affinity to chitin than those with Bc-ChBD at temperatures from 65 °C to at least 75 °C, but not to other polysaccharides including xylan, chitosan, cellulose, and agarose. For repeated production of xylose from arabinoxylan-containing feedstocks, a best-characterized trifunctional chimeric enzyme Xar-L1-Xyn (XX) constructed in our previous work was attempted to be immobilized on chitin efficiently by genetically fusing Tt-ChBD to the N-terminal region of XX (named CXX) and the C-terminal region of XX (named XXC), respectively. The fusing position of Tt-CBD affected the affinity-binding activity to chitin. Recombinant XX, XXC, and CXX were purified to homogeneity and characterized. According to the xylosidase activities, the optimum temperature and pH profiles of the CXX and XXC both in free and immobilized form were the same as those of XX. However, the thermal and pH stabilities of the immobilized XXC and CXX were both greatly improved in the range from 70 to 90 °C and pH 4.2-8.2. The immobilized multifunctional hemicellulase exhibited high stability to producing xylose for at least 19 or 30 times in continuous operation with the achievement of 60% or 80% conversion yield at temperatures up to 65 °C. These results indicate the usefulness of Tt-ChBD as an affinity tag for the simultaneous purification and immobilization of the enzyme on chitin and the great potential applications for thermophilic enzyme immobilization at higher temperatures.
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Affiliation(s)
- Qilei Wang
- Department of Food Science and Nutrition, GinLing College, Nanjing Normal University, Nanjing, People's Republic of China 210097
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Kinetic and thermodynamic study of cloned thermostable endo-1,4-β-xylanase from Thermotoga petrophila in mesophilic host. Mol Biol Rep 2012; 39:7251-61. [PMID: 22322560 DOI: 10.1007/s11033-012-1555-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Accepted: 01/24/2012] [Indexed: 10/14/2022]
Abstract
The 1,044 bp endo-1,4-β-xylanase gene of a hyperthermophilic Eubacterium, "Thermotoga petrophila RKU 1" (T. petrophila) was amplified, from the genomic DNA of donor bacterium, cloned and expressed in mesophilic host E. coli strain BL21 Codon plus. The extracellular target protein was purified by heat treatment followed by anion and cation exchange column chromatography. The purified enzyme appeared as a single band, corresponding to molecular mass of 40 kDa, upon SDS-PAGE. The pH and temperature profile showed that enzyme was maximally active at 6.0 and 95 °C, respectively against birchwood xylan as a substrate (2,600 U/mg). The enzyme also exhibited marked activity towards beech wood xylan (1,655 U/mg). However minor activity against CMC (61 U/mg) and β-Glucan barley (21 U/mg) was observed. No activity against Avicel, Starch, Laminarin and Whatman filter paper 42 was observed. The K(m), V(max) and K (cat) of the recombinant enzyme were found to be 3.5 mg ml(-1), 2778 μmol mg(-1)min(-1) and 2,137,346.15 s(-1), respectively against birchwood xylan as a substrate. The recombinant enzyme was found very stable and exhibited half life (t(½)) of 54.5 min even at temperature as high as 96 °C, with enthalpy of denaturation (ΔH*(D)), free energy of denaturation (ΔG*(D)) and entropy of denaturation (ΔS*(D)) of 513.23 kJ mol(-1), 104.42 kJ mol(-1) and 1.10 kJ mol(-1)K(-1), respectively at 96 °C. Further the enthalpy (ΔH*), Gibbs free energy (ΔG*) and entropy (ΔS*) for birchwood xylan hydrolysis by recombinant endo-1,4-β-xylanase were calculated at 95 °C as 62.45 kJ mol(-1), 46.18 kJ mol(-1) and 44.2 J mol(-1) K(-1), respectively.
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Song X, Xue Y, Wang Q, Wu X. Comparison of three thermostable β-glucosidases for application in the hydrolysis of soybean isoflavone glycosides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:1954-61. [PMID: 21294581 DOI: 10.1021/jf1046915] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A novel thermostable β-glucosidase (Te-BglA) from Thermoanaerobacter ethanolicus JW200 was cloned, characterized and compared for its activity against isoflavone glycosides with two β-glucosidases (Tm-BglA, Tm-BglB) from Thermotoga maritima. Te-BglA exhibited maximum hydrolytic activity toward pNP-β-d-glucopyranoside (pNPG) at 80 °C and pH 7.0, was stable for a pH range of 4.6-7.8 and at 65 °C for 3 h, and had the lowest K(m) for the natural glycoside salicin and the highest relative substrate specificity (k(cat)/K(m))((salicin))/(k(cat)/K(m))((pNPG)) among the three enzymes. It converted isoflavone glycosides, including malonyl glycosides, in soybean flour to their aglycons more efficiently than Tm-BglA and Tm-BglB. After 3 h of incubation at 65 °C, Te-BglA produced complete hydrolysis of four isoflavone glycosides (namely, daidzin, genistin and their malonylated forms), exhibiting higher productivity of genistein and daidzein than the other two β-glucosidases. Our results suggest that Te-BglA is preferable to Tm-BglA and Tm-BglB, but all three enzymes have great potential applications in converting isoflavone glycosides into their aglycons.
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Affiliation(s)
- Xiangfei Song
- Jiangsu Key Laboratory for Microbes and Functional Genomics, College of Life Science, Nanjing Normal University, Nanjing, PR China 210046
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