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Lopes W, Deolindo P, de Souza Costa AA, Gomes da Silva MT, de Miranda OP, Pacheco GJ. Optimization of a medium composition for the heterologous production of Alcaligenes faecalis penicillin G acylase in Bacillus megaterium. Protein Expr Purif 2023:106327. [PMID: 37348663 DOI: 10.1016/j.pep.2023.106327] [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: 02/23/2023] [Revised: 06/06/2023] [Accepted: 06/20/2023] [Indexed: 06/24/2023]
Abstract
Penicillin G acylase (PGA) is a strategic enzyme in the production processes of beta-lactam antibiotics. High demand for β-lactam semisynthetic antibiotics explain the genetic and biochemical engineering strategies devoted towards novel ways for PGA production and application. This work presents a fermentation process for the heterologous production of PGA from Alcaligenes faecalis in Bacillus megaterium with optimization. The thermal stability from A. faecalis PGA is considerably higher than other described PGA and the recombinant enzyme is secreted to the culture medium by B. megaterium, which facilitates the separation and purification steps. Media optimization using fractional factorial design experiments was used to identify factors related to PGA activity detection in supernatant and cell lysates. The optimized medium resulted in almost 6-fold increased activity in the supernatant samples when compared with the basal medium. Maximum enzyme activity in optimized medium composition achieves values between 135 and 140 IU/ml. The results suggest a promising model for recombinant production of PGA in B. megaterium with possible extracellular expression of the active enzyme.
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Affiliation(s)
- Wagner Lopes
- Institute of Drug Technology, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Poliana Deolindo
- Institute of Drug Technology, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
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Tu H, Niu F, Li X, Gao K, Chen Z, Wang P, Li Z. Nanoarchitectonics of penicillin G acylase with Mn2+ doped β-cyclodextrin/Fe3O4 for enhanced catalytic activity and reusability. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2022.112838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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3
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Tu H, Gao K, Zhang B, Chen Z, Wang P, Li Z. Comparative study of poly tannic acid functionalized magnetic particles before and after modification for immobilized penicillin G acylase. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:823-846. [PMID: 34935604 DOI: 10.1080/09205063.2021.2021352] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this work, Fe3O4 nanoparticles (NPs) was synthesized by inverting microemulsion method. After that, based on the physical and chemical properties of tannic acid (TA), poly tannic acid (PTA) was coated on Fe3O4 NPs surface. Fe3O4 NPs coated with PTA, on the one hand, was used to immobilize Penicillin G acylase (PGA) by physical adsorption. On the other hand, it was modified by glutaraldehyde (GA). GA grafting rate (Gr-GA) was optimized, and the Gr-GA was 30.0% under the optimum conditions. Then, through the Schiff base reaction between the glutaraldehyde group and PGA amino group, this covalent immobilization of PGA was further realized under mild conditions. Finally, the structures of every stage of magnetic composites were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), vibration magnetometer (VSM) and transmission electron microscopy (TEM), respectively. The results indicated that the enzyme activity (EA), enzyme activity recovery (EAR) and maximum load (ELC) of the immobilized PGA were 26843 U/g, 80.2% and 125 mg/g, respectively. Compared to the physical immobilization of PGA by only coating PTA nanoparticles, further modified nanoparticles by GA showed higher catalytic stability, reusability and storage stability.
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Affiliation(s)
- Hongyi Tu
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced progressing and Recycling of Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou, China
| | - Kaikai Gao
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced progressing and Recycling of Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou, China
| | - Boyuan Zhang
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced progressing and Recycling of Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou, China
| | - Zhenbin Chen
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced progressing and Recycling of Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou, China
| | - Pingbo Wang
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced progressing and Recycling of Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou, China
| | - Zhizhong Li
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, China
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Zhang B, Zhou Y, Liu C, Abdelrahman Mohammed MA, Chen Z, Chen Z. Immobilized penicillin G acylase with enhanced activity and stability using glutaraldehyde-modified polydopamine-coated Fe 3 O 4 nanoparticles. Biotechnol Appl Biochem 2022; 69:629-641. [PMID: 33650711 DOI: 10.1002/bab.2138] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 02/24/2021] [Indexed: 01/01/2023]
Abstract
In this work, Fe3 O4 nanoparticles (NPs) were coated with polydopamine (PDA) to structure Fe3 O4 @PDA NPs by the spontaneous oxygen-mediated self-polymerization of dopamine (DA) in an aqueous solution of pH = 8.5. The fabricated Fe3 O4 @PDA NPs were grafted by glutaraldehyde to realize the immobilization of penicillin G acylase (PGA) under mild conditions. The carriers of each stage were characterized and investigated by transmission electron microscopy, X-ray diffraction, Fourier transform infrared, and vibrating sample magnetometry. To improve the catalytic activity and stability of immobilized PGA, the immobilization conditions were investigated and optimized. Under the optimal immobilization conditions, the enzyme loading capacity, enzyme activity, and enzyme activity recovery of immobilized PGA were 114 mg/g, 26,308 U/g, and 78.5%, respectively. In addition, the immobilized PGA presented better temperature and pH stability compared with free PGA. The reusability study ensured that the immobilized PGA showed an excellent repeating application performance. In particular, the recovery rate of immobilized PGA could reach 94.8% and immobilized PGA could retain 73.0% of its original activity after 12 cycles, indicating that the immobilized PGA exhibited a high operation stability and broad application potential in the biocatalysis field.
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Affiliation(s)
- Boyuan Zhang
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced Progressing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou, China
| | - Yongshan Zhou
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced Progressing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou, China
| | - Chunli Liu
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced Progressing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou, China
| | - Monier Alhadi Abdelrahman Mohammed
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced Progressing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou, China
| | - Zhangjun Chen
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced Progressing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou, China
| | - Zhenbin Chen
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China.,State Key Laboratory of Advanced Progressing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou, China
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Kasza G, Stumphauser T, Bisztrán M, Szarka G, Hegedüs I, Nagy E, Iván B. Thermoresponsive Poly( N, N-diethylacrylamide- co-glycidyl methacrylate) Copolymers and Its Catalytically Active α-Chymotrypsin Bioconjugate with Enhanced Enzyme Stability. Polymers (Basel) 2021; 13:987. [PMID: 33806995 PMCID: PMC8004754 DOI: 10.3390/polym13060987] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 12/11/2022] Open
Abstract
Responsive (smart, intelligent, adaptive) polymers have been widely explored for a variety of advanced applications in recent years. The thermoresponsive poly(N,N-diethylacrylamide) (PDEAAm), which has a better biocompatibility than the widely investigated poly(N,N-isopropylacrylamide), has gained increased interest in recent years. In this paper, the successful synthesis, characterization, and bioconjugation of a novel thermoresponsive copolymer, poly(N,N-diethylacrylamide-co-glycidyl methacrylate) (P(DEAAm-co-GMA)), obtained by free radical copolymerization with various comonomer contents and monomer/initiator ratios are reported. It was found that all the investigated copolymers possess LCST-type thermoresponsive behavior with small extent of hysteresis, and the critical solution temperatures (CST), i.e., the cloud and clearing points, decrease linearly with increasing GMA content of these copolymers. The P(DEAAm-co-GMA) copolymer with pendant epoxy groups was found to conjugate efficiently with α-chymotrypsin in a direct, one-step reaction, leading to enzyme-polymer nanoparticle (EPNP) with average size of 56.9 nm. This EPNP also shows reversible thermoresponsive behavior with somewhat higher critical solution temperature than that of the unreacted P(DEAAm-co-GMA). Although the catalytic activity of the enzyme-polymer nanoconjugate is lower than that of the native enzyme, the results of the enzyme activity investigations prove that the pH and thermal stability of the enzyme is significantly enhanced by conjugation the with P(DEAAm-co-GMA) copolymer.
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Affiliation(s)
- György Kasza
- Polymer Chemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., H-1117 Budapest, Hungary; (T.S.); (M.B.); (G.S.)
| | - Tímea Stumphauser
- Polymer Chemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., H-1117 Budapest, Hungary; (T.S.); (M.B.); (G.S.)
| | - Márk Bisztrán
- Polymer Chemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., H-1117 Budapest, Hungary; (T.S.); (M.B.); (G.S.)
| | - Györgyi Szarka
- Polymer Chemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., H-1117 Budapest, Hungary; (T.S.); (M.B.); (G.S.)
| | - Imre Hegedüs
- Chemical and Biochemical Procedures Laboratory, Institute of Biomolecular and Chemical Engineering, Faculty of Engineering, University of Pannonia, Egyetem u. 10, H-8200 Veszprém, Hungary; (I.H.); (E.N.)
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó u. 37–47, H-1094 Budapest, Hungary
| | - Endre Nagy
- Chemical and Biochemical Procedures Laboratory, Institute of Biomolecular and Chemical Engineering, Faculty of Engineering, University of Pannonia, Egyetem u. 10, H-8200 Veszprém, Hungary; (I.H.); (E.N.)
| | - Béla Iván
- Polymer Chemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., H-1117 Budapest, Hungary; (T.S.); (M.B.); (G.S.)
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Immobilization of formate dehydrogenase on polyethyleneimine modified carriers for the enhancement of catalytic performance. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2020.106259] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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Chen Z, Chen Z, Liu C, Wang X, Zhou Y, Wang R. Optimization of penicillin G acylase immobilized on glutaraldehyde-modified titanium dioxide. Biotechnol Appl Biochem 2019; 66:990-998. [PMID: 31502318 DOI: 10.1002/bab.1817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 09/05/2019] [Indexed: 11/11/2022]
Abstract
In this work, TiO2 , which was modified by glutaraldehyde, was adopted as the carrier; the penicillin G acylase (PGA) was immobilized and the influence of immobilized conditions, such as pH of solution, the concentration of PGA, the immobilization temperature, and the reaction time, on the catalytic performance of the immobilized PGA was investigated and optimized. During this process, potassium penicillin G (PG) was chosen as substrate, and the quantity of 6-aminopenicillanic acid (6-APA) produced by PG at the temperature of 25 °C for 3 Min in neutral solution was conscripted as the evaluation foundation, indexes, containing the loading capacity (ELC), the activity (EA), and activity retention rate (EAR), were calculated based on quantities of produced 6-APA and compared with finding out the suitable conditions. Results showed that when the solution pH, PGA concentration, immobilization temperature, and reaction time were 8.0, 2.5% (v/v), 35 °C, and 24 H, respectively, ELC, EA, and EAR presented optimal values of 9,190 U, 14,969 U/g, and 88.5% relatedly. After that, the stability and reusability of immobilized PGA were studied, and the results documented that the pH resistance, thermal stability, and storage stability of immobilized PGA were significantly improved. This work provided technique support for the practical application of immobilized PGA carrier.
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Affiliation(s)
- Zhangjun Chen
- College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, People's Republic of China.,State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou, People's Republic of China
| | - Zhenbin Chen
- College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, People's Republic of China.,State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou, People's Republic of China
| | - Chunli Liu
- College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, People's Republic of China.,State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou, People's Republic of China
| | - Xudong Wang
- College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, People's Republic of China.,State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou, People's Republic of China
| | - Yongshan Zhou
- College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, People's Republic of China.,State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou, People's Republic of China
| | - Runtian Wang
- College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, People's Republic of China.,State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou, People's Republic of China
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Development of novel support for penicillin acylase and its application in 6-aminopenicillanic acid production. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110484] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li K, Shan G, Ma X, Zhang X, Chen Z, Tang Z, Liu Z. Study of target spacing of thermo-sensitive carrier on the activity recovery of immobilized penicillin G acylase. Colloids Surf B Biointerfaces 2019; 179:153-160. [DOI: 10.1016/j.colsurfb.2019.03.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/11/2019] [Accepted: 03/27/2019] [Indexed: 10/27/2022]
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Shen X, Yang M, Cui C, Cao H. In situ immobilization of glucose oxidase and catalase in a hybrid interpenetrating polymer network by 3D bioprinting and its application. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.02.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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