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Phipps J, Chen H, Donovan C, Dominguez D, Morgan S, Weidman B, Fan C, Beyzavi MH. Catalytic Activity, Stability, and Loading Trends of Alcohol Dehydrogenase Enzyme Encapsulated in a Metal-Organic Framework. ACS APPLIED MATERIALS & INTERFACES 2020; 12:26084-26094. [PMID: 32478509 PMCID: PMC7815252 DOI: 10.1021/acsami.0c06964] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Recently, it has been shown that enzyme encapsulation inside metal-organic frameworks (MOFs) can increase enzyme activity and serve as protection from adverse environmental conditions. Little is understood about how the enzymes move into and are held inside the MOFs although it is believed that intermolecular forces between the MOF and the enzyme cause it to be held in place. If this process can be better understood, it can have dramatic implications on the cost-effectiveness and implementation of enzyme-MOF complexes. This is of specific importance in the medical sector for protein therapy and the industrial sector where enzyme use is expected to increase. Herein, we synthesized alcohol dehydrogenase (ADH) and PCN-333 to study encapsulation, stability, and enzyme activity to expand the knowledge of our field and offer a potential improvement to a synthetic route for biofuel synthesis. From this, we found a correlation between the concentration of a buffer and the loading of an enzyme, with surprising loading trends. We conclude that the buffer solution decreases interactions between the enzyme and MOF, supporting conventional theory and allowing it to penetrate deeper into the structure causing higher enzyme loading while allowing for excellent stability over time at various pH values and temperatures and after multiple reactions. We also observe new trends such as a rebounding effect in loading and "out-of-bounds" reactions.
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Affiliation(s)
- Josh Phipps
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, United States
| | - Hao Chen
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, United States
| | - Connor Donovan
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
| | - Dylan Dominguez
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
| | - Sydney Morgan
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
| | - Barrett Weidman
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
| | - Chenguang Fan
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, United States
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
| | - M. Hassan Beyzavi
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, United States
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, United States
- Corresponding Author: Address correspondence to M. Hassan Beyzavi, Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR, 345 N Campus Dr., Fayetteville, AR 72701 USA.
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202
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Gao K, Chu W, Sun J, Mao X. Identification of an alkaline lipase capable of better enrichment of EPA than DHA due to fatty acids selectivity and regioselectivity. Food Chem 2020; 330:127225. [PMID: 32569931 DOI: 10.1016/j.foodchem.2020.127225] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 05/15/2020] [Accepted: 06/01/2020] [Indexed: 01/17/2023]
Abstract
The whole genome of Streptomyces violascens (=ATCC 27968) was sequenced and the cloning and expression of OUC-Lipase 6 were conducted in Bacillus subtilis WB800. The recombinant enzyme belongs to the lipolytic enzymes family V. OUC-Lipase 6 showed optimal activity at 30 °C and pH 9.0, and retained 90.2% of its activity in an alkaline buffer (pH 8.0, 30 °C and 96 h). OUC-Lipase 6 showed good stability under medium temperature conditions (residual activity of 68.8%, pH 8.0, 45 °C and 96 h). OUC-Lipase 6 could selectively hydrolyze fatty acids on the glyceride backbone, thus improving the contents of DHA and EPA in codfish oil. OUC-Lipase 6 also showed regioselectivity, resulting in a better enrichment efficiency for EPA than DHA. After hydrolyzing for 36 h via OUC-Lipase 6, the contents of EPA and DHA were improved to 3.24-fold and 1.98-fold, respectively.
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Affiliation(s)
- Kunpeng Gao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Wenqin Chu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Jianan Sun
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China.
| | - Xiangzhao Mao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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203
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Bi Y, Wang Z, Tian Y, Fan H, Huang S, Lu Y, Jin Z. Highly Efficient Regioselective Decanoylation of Hyperoside Using Nanobiocatalyst of Fe 3O 4@PDA- Thermomyces lanuginosus Lipase: Insights of Kinetics and Stability Evaluation. Front Bioeng Biotechnol 2020; 8:485. [PMID: 32548099 PMCID: PMC7270339 DOI: 10.3389/fbioe.2020.00485] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 04/27/2020] [Indexed: 12/24/2022] Open
Abstract
The immobilization of Thermomyces lanuginosus lipase on polydopamine-functionalized Fe3O4 magnetic nanoparticles (Fe3O4@PDA-TLL) as a nanobiocatalyst was successfully performed for the first time, and the Fe3O4@PDA-TLL was used for regioselective acylation of natural hyperoside with vinyl decanoate. The effects of several crucial factors, such as the reaction solvent, substrate molar ratio, temperature, and immobilized enzyme dosage, were investigated. Under optimum conditions, the reaction rate, 6″-regioselectivity, and maximum substrate conversion were as high as 12.6 mM/h, 100%, and 100%, respectively. An operational stability study demonstrated that the immobilized enzyme could maintain 90.1% of its initial maximum conversion even after reusing it five times. In addition, further investigations on the kinetic parameters, like Vmax, Km, Vmax/Km, and Ea, also revealed that the biocompatible Fe3O4@PDA could act as an alternative carrier for the immobilization of different enzymes.
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Affiliation(s)
- Yanhong Bi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an, China
| | - Zhaoyu Wang
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an, China
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Haoran Fan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Shuo Huang
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an, China
| | - Yihui Lu
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an, China
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
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204
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Improved Catalytic Properties of Thermomyces lanuginosus Lipase Immobilized onto Newly Fabricated Polydopamine-Functionalized Magnetic Fe3O4 Nanoparticles. Processes (Basel) 2020. [DOI: 10.3390/pr8050629] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
In this study, magnetic Fe3O4 nanoparticles coated with polydopamine possessing abundant amino groups (Fe3O4@PDA) were conveniently prepared, detailed, and characterized, and then firstly used as a supporting matrix for immobilizing Thermomyces lanuginosus lipase (Fe3O4@PDA@TLL). The effects of some crucial factors on the immobilization efficiency were investigated and the optimal protein loading and activity recovery were found to be 156.4 mg/g and 90.9%, respectively. Characterization studies revealed that Fe3O4@PDA@TLL displayed a broader pH and temperature adaptability as compared to the free TLL, which allows its use at wider ranges of reaction conditions. With regard to the stabilities, the immobilized TLL clearly displayed improved pH, thermal, and solvent tolerance stabilities compared to the free enzyme, suggesting that the biocompatible Fe3O4@PDA might be an outstanding material for immobilizing TLL and acting as alternative support for different enzymes.
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205
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Han P, Zhou X, You C. Efficient Multi-Enzymes Immobilized on Porous Microspheres for Producing Inositol From Starch. Front Bioeng Biotechnol 2020; 8:380. [PMID: 32478043 PMCID: PMC7232586 DOI: 10.3389/fbioe.2020.00380] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/06/2020] [Indexed: 01/21/2023] Open
Abstract
In vitro synthetic enzymatic biosystem is considered to be the next generation of biomanufacturing platform. This biosystem contains multiple enzymes for the implementation of complicated biotransformatiom. However, the hard-to-reuse and instability of multiple enzymes limit the utilization of this biosystem in industrial process. Multi-enzyme immobilization might be a feasible alternative to address these problems. Herein, porous microspheres are used as carriers to co-immobilize multiple enzymes for producing inositol from starch. At first, all the enzymes (i.e., α-glucan phosphorylase aGP, phosphoglucose mutase PGM, inositol 1-phosphate synthase IPS, and inositol monophosphatase IMP) for converting starch to inositol were immobilized on porous microspheres individually to check the effect of immobilization, then all the enzymes are co-immobilized on porous microspheres. Compared to reaction system containing all the individual immobilized enzymes, the reaction system containing the co-immobilized enzymes exhibit ∼3.5 fold of reaction rate on producing inositol from starch. This reaction rate is comparable to that by free enzyme mixture. And the co-immobilized multi-enzyme system show higher thermal stability and recovery stability than free enzyme mixture. After 7 batches, the immobilized enzymes retain 45.6% relative yield, while the free enzyme mixture only retain 13.3% relative yield after 3 batches. Co-immobilization of multiple enzymes on porous microspheres for biomanufacturing would shed light on the application of in vitro synthetic enzymatic biosystem in industrial scale.
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Affiliation(s)
- Pingping Han
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Xigui Zhou
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Chun You
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China.,University of Chinese Academy of Sciences, Beijing, China
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206
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Yang R, Nie Z, Xu N, Zhao X, Wang Z, Luo H. Significantly Enhanced Synthesis of Aromatic Esters of Arbutin Catalyzed by Immobilized Lipase in Co-solvent Systems. Front Bioeng Biotechnol 2020; 8:273. [PMID: 32363180 PMCID: PMC7180213 DOI: 10.3389/fbioe.2020.00273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 03/16/2020] [Indexed: 11/14/2022] Open
Abstract
Highly efficient and regioselective synthesis of pharmacologically interesting aromatic esters of arbutin catalyzed by immobilized lipase from Penicillium expansum in co-solvent systems was successfully carried out. As compared to tetrahydrofuran solvent, the initial rate and substrate conversion of arbutin vanilylation were markedly enhanced in tetrahydrofuran-isopropyl ether (20%, v/v). Moreover, the effects of three reaction parameters (enzyme amount, temperature and substrate molar ratio of vinyl vanillic acid to arbutin) on 6′-O-vanilloyl-arbutin synthesis were scrutinized and the key process parameters were optimized using response surface methodology (RSM). The experimental data were fitted well to a second order polynomial model by using multiple regression analysis. The best combination of variables was 50°C, 93 U/mL and 11 for the reaction temperature, the enzyme amount and mole ratio of arbutin to vinyl vanilic acid, respectively, and which the reaction rate, substrate conversion and regioselectivity were as high as 8.2 mM/h, 93 and 99%. It was worth noting that a variety of aromatic esters of arbutin were obtained with much higher conversion (93–99%) at these optimal conditions.
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207
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Nadar SS, Vaidya L, Rathod VK. Enzyme embedded metal organic framework (enzyme–MOF): De novo approaches for immobilization. Int J Biol Macromol 2020; 149:861-876. [DOI: 10.1016/j.ijbiomac.2020.01.240] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/21/2020] [Accepted: 01/23/2020] [Indexed: 12/25/2022]
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208
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Zhou N, Zhang A, Wei G, Yang S, Xu S, Chen K, Ouyang P. Cadaverine Production From L-Lysine With Chitin-Binding Protein-Mediated Lysine Decarboxylase Immobilization. Front Bioeng Biotechnol 2020; 8:103. [PMID: 32195228 PMCID: PMC7062646 DOI: 10.3389/fbioe.2020.00103] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/03/2020] [Indexed: 12/26/2022] Open
Abstract
Lysine decarboxylase (CadA) can directly convert L-lysine to cadaverine, which is an important platform chemical that can be used to produce polyamides. However, the non-recyclable and the poor pH tolerance of pure CadA hampered its practical application. Herein, a one-step purification and immobilization procedure of CadA was established to investigate the cadaverine production from L-lysine. Renewable biomass chitin was used as a carrier for lysine decarboxylase (CadA) immobilization via fusion of a chitin-binding domain (ChBD). Scanning electron microscopy, laser scanning confocal microscopy, fourier transform infrared spectra, elemental analysis, and thermal gravimetric analysis proved that the fusion protein ChBD-CadA can be adsorbed on chitin effectively. Furthermore, the fusion protein (ChBD-CadA) existed better pH stability compared to wild CadA, and kept over 73% of the highest activity at pH 8.0. Meanwhile, the ChBD-CadA showed high specificity toward chitin and reached 93% immobilization yield within 10 min under the optimum conditions. The immobilized ChBD-CadA (I-ChBD-CadA) could efficiently converted L-lysine at 200.0 g/L to cadaverine at 135.6 g/L in a batch conversion within 120 min, achieving a 97% molar yield of the substrate L-lysine. In addition, the I-ChBD-CadA was able to be reused under a high concentration of L-lysine and retained over 57% of its original activity after four cycles of use without acid addition to maintain pH. These results demonstrate that immobilization of CadA using chitin-binding domain has the potential in cadaverine production on an industrial scale.
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Affiliation(s)
- Ning Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Alei Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Guoguang Wei
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Sai Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Sheng Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Kequan Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Pingkai Ouyang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
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209
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Wang H, Han L, Zheng D, Yang M, Andaloussi YH, Cheng P, Zhang Z, Ma S, Zaworotko MJ, Feng Y, Chen Y. Protein‐Structure‐Directed Metal–Organic Zeolite‐like Networks as Biomacromolecule Carriers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000299] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Huanrong Wang
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
| | - Lin Han
- College of ChemistryNankai University Tianjin 300071 China
| | - Dong Zheng
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
| | - Mingfang Yang
- College of ChemistryNankai University Tianjin 300071 China
| | - Yassin H. Andaloussi
- Department of Chemical SciencesBernal InstituteUniversity of Limerick Limerick V94 T9PX Republic of Ireland
| | - Peng Cheng
- College of ChemistryNankai University Tianjin 300071 China
| | - Zhenjie Zhang
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
- College of ChemistryNankai University Tianjin 300071 China
| | - Shengqian Ma
- Department of ChemistryUniversity of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Michael J. Zaworotko
- Department of Chemical SciencesBernal InstituteUniversity of Limerick Limerick V94 T9PX Republic of Ireland
| | - Yifan Feng
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
| | - Yao Chen
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
- National Institute for Advanced MaterialsNankai University Tianjin 300071 China
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210
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Wang H, Han L, Zheng D, Yang M, Andaloussi YH, Cheng P, Zhang Z, Ma S, Zaworotko MJ, Feng Y, Chen Y. Protein‐Structure‐Directed Metal–Organic Zeolite‐like Networks as Biomacromolecule Carriers. Angew Chem Int Ed Engl 2020; 59:6263-6267. [DOI: 10.1002/anie.202000299] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Indexed: 11/12/2022]
Affiliation(s)
- Huanrong Wang
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
| | - Lin Han
- College of ChemistryNankai University Tianjin 300071 China
| | - Dong Zheng
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
| | - Mingfang Yang
- College of ChemistryNankai University Tianjin 300071 China
| | - Yassin H. Andaloussi
- Department of Chemical SciencesBernal InstituteUniversity of Limerick Limerick V94 T9PX Republic of Ireland
| | - Peng Cheng
- College of ChemistryNankai University Tianjin 300071 China
| | - Zhenjie Zhang
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
- College of ChemistryNankai University Tianjin 300071 China
| | - Shengqian Ma
- Department of ChemistryUniversity of South Florida 4202 E. Fowler Avenue Tampa FL 33620 USA
| | - Michael J. Zaworotko
- Department of Chemical SciencesBernal InstituteUniversity of Limerick Limerick V94 T9PX Republic of Ireland
| | - Yifan Feng
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
| | - Yao Chen
- State Key Laboratory of Medicinal Chemical biologyCollege of PharmacyNankai University Tianjin 300071 China
- National Institute for Advanced MaterialsNankai University Tianjin 300071 China
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211
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Jiang C, Liu Z, Sun J, Mao X. Characterization of a Novel α-Neoagarobiose Hydrolase Capable of Preparation of Medium- and Long-Chain Agarooligosaccharides. Front Bioeng Biotechnol 2020; 7:470. [PMID: 32064255 PMCID: PMC7000632 DOI: 10.3389/fbioe.2019.00470] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/23/2019] [Indexed: 12/04/2022] Open
Abstract
α-Neoagarobiose hydrolase plays an important role in saccharification processes of marine biomass. In this study, an α-neoagarobiose hydrolase from Streptomyces coelicolor A3(2), designated as ScJC117, was identified, purified, and characterized. It has a sequence of 370 amino acids and belongs to the GH117 family. ScJC117 exhibited good activity under optimal hydrolysis conditions of pH 6.0 and 30°C, where it showed the Km and kcat for neoagarobiose of 11.57 mM and 0.48 s–1, respectively. ScJC117 showed the ability to hydrolyze neoagarooligosaccharides with the polymerization degrees of 2–14. A basis of catalytic activity toward the first α-1,3-glycosidic bond of the neoagarooligosaccharides from the non-reducing end, ScJC117 can be classified as an exo-type α-neoagarobiose hydrolase. These results suggested that ScJC117 could be used in the preparation of odd agarooligosaccharides (especially agaroheptaose-agaroundecaose) and 3,6-anhydro-L-galactose, which has a functional food additive potential. Moreover, ScJC117 can be used for comprehensive utilization of red algae.
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Affiliation(s)
- Chengcheng Jiang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Zhen Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Jianan Sun
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xiangzhao Mao
- College of Food Science and Engineering, Ocean University of China, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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