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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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2
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Serrano-Aguirre L, Velasco-Bucheli R, García-Álvarez B, Saborido A, Arroyo M, de la Mata I. Novel Bifunctional Acylase from Actinoplanes utahensis: A Versatile Enzyme to Synthesize Antimicrobial Compounds and Use in Quorum Quenching Processes. Antibiotics (Basel) 2021; 10:antibiotics10080922. [PMID: 34438972 PMCID: PMC8388760 DOI: 10.3390/antibiotics10080922] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/25/2021] [Accepted: 07/27/2021] [Indexed: 12/02/2022] Open
Abstract
Many intercellular communication processes, known as quorum sensing (QS), are regulated by the autoinducers N-acyl-l-homoserine lactones (AHLs) in Gram-negative bacteria. The inactivation of these QS processes using different quorum quenching (QQ) strategies, such as enzymatic degradation of the autoinducers or the receptor blocking with non-active analogs, could be the basis for the development of new antimicrobials. This study details the heterologous expression, purification, and characterization of a novel N-acylhomoserine lactone acylase from Actinoplanes utahensis NRRL 12052 (AuAHLA), which can hydrolyze different natural penicillins and N-acyl-homoserine lactones (with or without 3-oxo substitution), as well as synthesize them. Kinetic parameters for the hydrolysis of a broad range of substrates have shown that AuAHLA prefers penicillin V, followed by C12-HSL. In addition, AuAHLA inhibits the production of violacein by Chromobacterium violaceum CV026, confirming its potential use as a QQ agent. Noteworthy, AuAHLA is also able to efficiently synthesize penicillin V, besides natural AHLs and phenoxyacetyl-homoserine lactone (POHL), a non-natural analog of AHLs that could be used to block QS receptors and inhibit signal of autoinducers, being the first reported AHL acylase capable of synthesizing AHLs.
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3
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Penicillin G acylase production by Mucor griseocyanus and the partial genetic analysis of its pga gene. Int Microbiol 2020; 24:37-45. [PMID: 32705496 DOI: 10.1007/s10123-020-00137-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/06/2020] [Accepted: 07/16/2020] [Indexed: 10/23/2022]
Abstract
Penicillin acylases (penicillin amidohydrolase, EC 3.5.1.11) are a group of enzymes with many applications within the pharmaceutical industry, and one of them is the production of semi-synthetic beta-lactam antibiotics. This enzyme is mainly produced by bacteria but also by some fungi. In the present study, the filamentous fungus Mucor griseocyanus was used to produce penicillin acylase enzyme (PGA). Its ability to express PGA enzyme in submerged fermentation process was assessed, finding that this fungal strain produces the biocatalyst of interest in an extracellular way at a level of 570 IU/L at 72 h of fermentation; in this case, a saline media using lactose as carbon source and penicillin G as inducer was employed. In addition, a DNA fragment (859 bp) of the pga from a pure Mucor griseocyanus strain was amplified, sequenced, and analyzed in silico. The partial sequence of pga identified in the fungi showed high identity percentage with penicillin G acylase sequences deposited in NCBI through BLAST, especially with the β subunit of PGA from the Alcaligenes faecalis bacterium¸ which is a region involved in the catalytic function of this protein. Besides, the identification of domains in the penicillin G acylase sequence of Mucor griseocyanus showed three conserved regions of this protein. The bioinformatic results support the identity of the gen as penicillin G acylase. This is the first report that involves sequencing and in silico analysis of Mucor griseocyanus strain gene encoding PGA.
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4
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Borčinová M, Raschmanová H, Zamora I, Looser V, Marešová H, Hirsch S, Kyslík P, Kovar K. Production and secretion dynamics of prokaryotic Penicillin G acylase in Pichia pastoris. Appl Microbiol Biotechnol 2020; 104:5787-5800. [PMID: 32424437 PMCID: PMC7306039 DOI: 10.1007/s00253-020-10669-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 12/13/2022]
Abstract
To take full advantage of recombinant Pichia pastoris (Komagataella phaffii) as a production system for heterologous proteins, the complex protein secretory process should be understood and optimised by circumventing bottlenecks. Typically, little or no attention has been paid to the fate of newly synthesised protein inside the cell, or its passage through the secretory pathway, and only the secreted product is measured. However, the system’s productivity (i.e. specific production rate qp), includes productivity of secreted (qp,extra) plus intracellularly accumulated (qp,intra) protein. In bioreactor cultivations with P. pastoris producing penicillin G acylase, we studied the dynamics of product formation, i.e. both the specific product secretion (qp,extra) and product retention (qp,intra) as functions of time, as well as the kinetics, i.e. productivity in relation to specific growth rate (μ). Within the time course, we distinguished (I) an initial phase with constant productivities, where the majority of product accumulated inside the cells, and qp,extra, which depended on μ in a bell-shaped manner; (II) a transition phase, in which intracellular product accumulation reached a maximum and productivities (intracellular, extracellular, overall) were changing; (III) a new phase with constant productivities, where secretion prevailed over intracellular accumulation, qp,extra was linearly related to μ and was up to three times higher than in initial phase (I), while qp,intra decreased 4–6-fold. We show that stress caused by heterologous protein production induces cellular imbalance leading to a secretory bottleneck that ultimately reaches equilibrium. This understanding may help to develop cultivation strategies for improving protein secretion from P. pastoris.Key Points • A novel concept for industrial bioprocess development. • A Relationship between biomass growth and product formation in P. pastoris. • A Three (3) phases of protein production/secretion controlled by the AOX1-promoter. • A Proof of concept in production of industrially relevant penicillin G acylase. |
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Affiliation(s)
- Martina Borčinová
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Campus Grüental, CH-8820, Wädenswil, Switzerland. .,Department of Genetics and Microbiology, Faculty of Science, Charles University in Prague, Viničná 5, 12840, Prague, Czech Republic.
| | - Hana Raschmanová
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Campus Grüental, CH-8820, Wädenswil, Switzerland.,Department of Biotechnology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 16628, Prague, Czech Republic
| | - Iwo Zamora
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Campus Grüental, CH-8820, Wädenswil, Switzerland.,Infors AG, Rittergasse 27, CH-4103, Bottmingen, Switzerland
| | - Verena Looser
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Campus Grüental, CH-8820, Wädenswil, Switzerland.,Department of Biotechnology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 16628, Prague, Czech Republic
| | - Helena Marešová
- Institute of Microbiology, Czech Academy of Sciences, Videňská 1083, 14220, Prague, Czech Republic
| | - Sven Hirsch
- Institute of Applied Simulation, Zurich University of Applied Sciences, Schloss 1, CH-8820, Wädenswil, Switzerland
| | - Pavel Kyslík
- Institute of Microbiology, Czech Academy of Sciences, Videňská 1083, 14220, Prague, Czech Republic
| | - Karin Kovar
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Campus Grüental, CH-8820, Wädenswil, Switzerland.,Daspool, Gerberacherweg 24, CH-8820, Wädenswil, Switzerland
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5
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Cheng YN, Qiu S, Cheng F, Weng CY, Wang YJ, Zheng YG. Enhancing Catalytic Efficiency of an Actinoplanes utahensis Echinocandin B Deacylase through Random Mutagenesis and Site-Directed Mutagenesis. Appl Biochem Biotechnol 2019; 190:1257-1270. [PMID: 31741208 DOI: 10.1007/s12010-019-03170-3] [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: 04/30/2019] [Accepted: 10/23/2019] [Indexed: 11/24/2022]
Abstract
Echinocandin B deacylase (EBDA), from Actinoplanes utahensis ZJB-08196, is capable of cleaving the linoleoyl group from echinocandin B (ECB), forming the echinocandin B nucleus (ECBN), which is a key precursor of semisynthetic antifungal antibiotics. In the present study, molecular evolution of AuEBDA by random mutagenesis combined with site-directed mutagenesis (SDM) and screening was performed. Random mutagenesis on the wild-type (WT) AuEBDA generated two beneficial substitutions of G287Q, R527V. The "best" variant AuEBDA-G287Q/R527V was obtained by combining G287Q with R527V through SDM, which was most active at 35 °C, pH 7.5, with Km and vmax values of 0.68 mM and 395.26 U/mg, respectively. Mutation of G287Q/R527V markedly increased the catalytic efficiency kcat/Km by 290% compared with the WT-AuEBDA.
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Affiliation(s)
- Ying-Nan Cheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Shuai Qiu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Feng Cheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Chun-Yue Weng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Ya-Jun Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China.
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China.
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.
| | - Yu-Guo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, People's Republic of China
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
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6
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Marešová H, Palyzová A, Plačková M, Grulich M, Rajasekar VW, Štěpánek V, Kyslíková E, Kyslík P. Potential of Pichia pastoris for the production of industrial penicillin G acylase. Folia Microbiol (Praha) 2017; 62:417-424. [PMID: 28281229 DOI: 10.1007/s12223-017-0512-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 02/24/2017] [Indexed: 02/07/2023]
Abstract
This study deals with the potential of Pichia pastoris X-33 for the production of penicillin G acylase (PGAA) from Achromobacter sp. CCM 4824. Synthetic gene matching the codon usage of P. pastoris was designed for intracellular and secretion-based production strategies and cloned into vectors pPICZ and pPICZα under the control of AOX1 promoter. The simple method was developed to screen Pichia transformants with the intracellularly produced enzyme. The positive correlation between acylase production and pga gene dosage for both expression systems was demonstrated in small scale experiments. In fed-batch bioreactor cultures of X-33/PENS2, an extracellular expression system, total PGAA expressed from five copies reached 14,880 U/L of an active enzyme after 142 h; however, 60% of this amount retained in the cytosol. The maximum PGAA production of 31,000 U/L was achieved intracellularly from nine integrated gene copies of X-33/PINS2 after 90 h under methanol induction. The results indicate that in both expression systems the production level of PGAA is similar but there is a limitation in secretion efficiency.
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Affiliation(s)
- Helena Marešová
- Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - Andrea Palyzová
- Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 14220, Prague 4, Czech Republic.
| | - Martina Plačková
- Department of Genetics and Microbiology, Faculty of Science, Charles University in Prague, Viničná 5, 12840, Prague 2, Czech Republic
| | - Michal Grulich
- Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 14220, Prague 4, Czech Republic
| | | | - Václav Štěpánek
- Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - Eva Kyslíková
- Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - Pavel Kyslík
- Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 14220, Prague 4, Czech Republic
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7
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Gruber P, Marques MP, Sulzer P, Wohlgemuth R, Mayr T, Baganz F, Szita N. Real-time pH monitoring of industrially relevant enzymatic reactions in a microfluidic side-entry reactor (μSER) shows potential for pH control. Biotechnol J 2017; 12. [DOI: 10.1002/biot.201600475] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 01/16/2017] [Accepted: 01/18/2017] [Indexed: 01/23/2023]
Affiliation(s)
- Pia Gruber
- Department of Biochemical Engineering; University College London; Gordon Street London UK
| | - Marco P.C. Marques
- Department of Biochemical Engineering; University College London; Gordon Street London UK
| | - Philipp Sulzer
- Institute of Analytical Chemistry and Food Chemistry; Graz University of Technology; Graz Austria
| | - Roland Wohlgemuth
- Member of Merck Group; Sigma-Aldrich; Member of Merck Group; Buchs Switzerland
| | - Torsten Mayr
- Institute of Analytical Chemistry and Food Chemistry; Graz University of Technology; Graz Austria
| | - Frank Baganz
- Institute of Analytical Chemistry and Food Chemistry; Graz University of Technology; Graz Austria
| | - Nicolas Szita
- Department of Biochemical Engineering; University College London; Gordon Street London UK
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8
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Overexpression of penicillin V acylase from Streptomyces lavendulae and elucidation of its catalytic residues. Appl Environ Microbiol 2016; 81:1225-33. [PMID: 25501472 DOI: 10.1128/aem.02352-14] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The pva gene from Streptomyces lavendulae ATCC 13664, encoding a novel penicillin V acylase (SlPVA), has been isolated and characterized. The gene encodes an inactive precursor protein containing a secretion signal peptide that is activated by two internal autoproteolytic cleavages that release a 25-amino-acid linker peptide and two large domains of 18.79 kDa (alpha-subunit) and 60.09 kDA (beta-subunit). Based on sequence alignments and the three-dimensional model of SlPVA, the enzyme contains a hydrophobicpocket involved in catalytic activity, including Serbeta1, Hisbeta23, Valbeta70, and Asnbeta272, which were confirmed by site-directed mutagenesis studies. The heterologous expression of pva in S. lividans led to the production of an extracellularly homogeneous heterodimeric enzyme at a 5-fold higher concentration (959 IU/liter) than in the original host and in a considerably shorter time. According to the catalytic properties of SlPVA, the enzyme must be classified as a new member of the Ntn-hydrolase superfamily, which belongs to a novel subfamily of acylases that recognize substrates with long hydrophobic acyl chains and have biotechnological applications in semisynthetic antifungal production.
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9
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Mollica L, Conti G, Pollegioni L, Cavalli A, Rosini E. Unveiling the Atomic-Level Determinants of Acylase–Ligand Complexes: An Experimental and Computational Study. J Chem Inf Model 2015; 55:2227-41. [DOI: 10.1021/acs.jcim.5b00535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Luca Mollica
- CompuNet, Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
| | - Gianluca Conti
- Dipartimento
di Biotecnologie e Scienze della Vita, Università degli studi dell’Insubria, via J. H. Dunant 3, 21100 Varese, Italy
| | - Loredano Pollegioni
- Dipartimento
di Biotecnologie e Scienze della Vita, Università degli studi dell’Insubria, via J. H. Dunant 3, 21100 Varese, Italy
- The
Protein Factory, Centro Interuniversitario di Biotecnologie Proteiche, Politecnico di Milano and Università degli studi dell’Insubria, via Mancinelli 7, 20131 Milano, Italy
| | - Andrea Cavalli
- CompuNet, Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
- Department
of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, via Belmeloro 6, 40126 Bologna, Italy
| | - Elena Rosini
- Dipartimento
di Biotecnologie e Scienze della Vita, Università degli studi dell’Insubria, via J. H. Dunant 3, 21100 Varese, Italy
- The
Protein Factory, Centro Interuniversitario di Biotecnologie Proteiche, Politecnico di Milano and Università degli studi dell’Insubria, via Mancinelli 7, 20131 Milano, Italy
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10
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An effective method for extraction of glutaryl-7-aminocephalosporanic acid acylase from recombinant E. coli cells. BIOTECHNOL BIOPROC E 2015. [DOI: 10.1007/s12257-013-0607-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Eldarov MA, Sklyarenko AV, Mardanov AV, Beletsky AV, Zhgun AA, Dumina MV, Medvedeva NV, Satarova DE, Ravin NV, Yarockii SV. Cephalosporin-acid synthetase of Escherichia coli strain VKPM B-10182: Genomic context, gene identification, producer strain production. APPL BIOCHEM MICRO+ 2015. [DOI: 10.1134/s0003683815050051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Conti G, Pollegioni L, Rosini E. One-pot conversion of cephalosporin C by using an optimized two-enzyme process. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01522c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Setup of a low cost one-pot enzymatic system to directly convert cephalosporin C into 7-aminocephalosporanic acid with high purity.
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Affiliation(s)
- Gianluca Conti
- Dipartimento di Biotecnologie e Scienze della Vita
- Università degli Studi dell'Insubria
- 21100 Varese
- Italy
| | - Loredano Pollegioni
- Dipartimento di Biotecnologie e Scienze della Vita
- Università degli Studi dell'Insubria
- 21100 Varese
- Italy
- The Protein Factory
| | - Elena Rosini
- Dipartimento di Biotecnologie e Scienze della Vita
- Università degli Studi dell'Insubria
- 21100 Varese
- Italy
- The Protein Factory
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13
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Romero O, Araya E, Illanes A, Wilson L. Evaluation of kinetic parameters of immobilized penicillin G acylase subject to an inactivation and reactivation process. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Conti G, Pollegioni L, Molla G, Rosini E. Strategic manipulation of an industrial biocatalyst--evolution of a cephalosporin C acylase. FEBS J 2014; 281:2443-55. [PMID: 24684708 DOI: 10.1111/febs.12798] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 03/07/2014] [Accepted: 03/28/2014] [Indexed: 11/30/2022]
Abstract
Semi-synthetic cephalosporins are synthesized from the 7-amino cephalosporanic acid (7-ACA) nucleus produced from the antibiotic cephalosporin C (CephC). In recent years, a single-step enzymatic process in which CephC is directly converted into 7-ACA by a cephalosporin C acylase (CA) has attracted industrial interest because of the prospects of simplifying the process and reducing costs. CAs are members of the glutaryl acylase family that specifically use CephC as their substrate; however, known natural glutaryl acylases show very low activity on the antibiotic. We previously enhanced the catalytic efficiency on CephC of a glutaryl acylase from Pseudomonas N176 (named VAC) by a protein engineering approach, and solved the structures of the VAC, thus providing insight into the substrate binding and catalytic activity of CAs. However, the properties of such enzymes are not sufficient to encourage 7-ACA manufacturers to shift to single-step enzymatic conversion of CephC. Here, we combine structural knowledge, semi-rational design, computational approaches and evolution analysis to isolate VAC variants with altered substrate specificity (i.e. with a > 11,000-fold increase in specificity constant for CephC versus glutaryl-7-amino cephalosporanic acid, compared to wild-type) and with the highest kinetic efficiency so far obtained for a CA. Indeed, the H57βS-H70βS-L154βY VAC variant shows the highest conversion of CephC into 7-ACA under conditions resembling those used at industrial level because of its high kinetic efficiency and the absence of substrate or product inhibition effects, and may be suitable for industrial application of the mono-step process for CephC conversion.
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Affiliation(s)
- Gianluca Conti
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli studi dell'Insubria, Varese, Italy
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15
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Vélez AM, da Silva AJ, Luperni Horta AC, Sargo CR, Campani G, Gonçalves Silva G, de Lima Camargo Giordano R, Zangirolami TC. High-throughput strategies for penicillin G acylase production in rE. coli fed-batch cultivations. BMC Biotechnol 2014; 14:6. [PMID: 24444109 PMCID: PMC3913322 DOI: 10.1186/1472-6750-14-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Accepted: 12/30/2013] [Indexed: 11/14/2022] Open
Abstract
Background Penicillin G acylase (PGA) is used industrially to catalyze the hydrolysis of penicillin G to obtain 6-aminopenicillanic acid. In Escherichia coli, the most-studied microorganism for PGA production, this enzyme accumulates in the periplasmic cell space, and temperature plays an important role in the correct synthesis of its subunits. Results This work investigates the influence of medium composition, cultivation strategy, and temperature on PGA production by recombinant E. coli cells. Shake flask cultures carried out using induction temperatures ranging from 18 to 28°C revealed that the specific enzyme activity achieved at 20°C (3000 IU gDCW-1) was 6-fold higher than the value obtained at 28°C. Auto-induction and high cell density fed-batch bioreactor cultures were performed using the selected induction temperature, with both defined and complex media, and IPTG and lactose as inducers. Final biomass concentrations of 100 and 120 gDCW L-1, and maximum enzyme productivities of 7800 and 5556 IU L-1 h-1, were achieved for high cell density cultures using complex and defined media, respectively. Conclusions To the best of our knowledge, the volumetric enzyme activity and productivity values achieved using the complex medium are the highest ever reported for PGA production using E. coli. Overall PGA recovery yields of 64 and 72% after purification were achieved for crude extracts obtained from cells cultivated in defined and complex media, respectively. The complex medium was the most cost-effective for PGA production, and could be used in both high cell density and straightforward auto-induction protocols.
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Affiliation(s)
| | | | | | | | | | | | | | - Teresa Cristina Zangirolami
- Chemical Engineering Department, Federal University of São Carlos (UFSCar), Rodovia Washington Luís, km 235, C,P, 676, CEP 13565-905 São Carlos, SP, Brazil.
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16
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Improved activity and pH stability of E. coli ATCC 11105 penicillin acylase by error-prone PCR. Appl Microbiol Biotechnol 2014; 98:4467-77. [DOI: 10.1007/s00253-013-5476-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/13/2013] [Accepted: 12/15/2013] [Indexed: 11/27/2022]
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17
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Kopp W, da Costa TP, Pereira SC, Jafelicci Jr M, Giordano RC, Marques RF, Araújo-Moreira FM, Giordano RL. Easily handling penicillin G acylase magnetic cross-linked enzymes aggregates: Catalytic and morphological studies. Process Biochem 2014. [DOI: 10.1016/j.procbio.2013.09.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Elnashar MMM, Wahba MI, Amin MA, Eldiwany AI. Application of Plackett-Burman screening design to the modeling of grafted alginate-carrageenan beads for the immobilization of penicillin G acylase. J Appl Polym Sci 2013. [DOI: 10.1002/app.40295] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Magdy M. M. Elnashar
- Polymers Department; National Research Center; El-Behooth Street Dokki Cairo Egypt
- Centre of Scientific Excellence, Group of Biopolymers and Nanobiotechnology; National Research Center; Cairo Egypt
- College of Medicine; Taif University; Hawiya Taif Kingdom of Saudi Arabia
| | - Marwa I. Wahba
- Centre of Scientific Excellence, Group of Biopolymers and Nanobiotechnology; National Research Center; Cairo Egypt
- Department of Natural and Microbial Chemistry; National Research Center; El-Behooth Street Dokki Cairo Egypt
| | - Magdy A. Amin
- Microbiology Department; Faculty of Pharmacy; Cairo University
| | - Ahmed I. Eldiwany
- Department of Natural and Microbial Chemistry; National Research Center; El-Behooth Street Dokki Cairo Egypt
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19
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Zakirova SA, Mikhailova TV, Eldarov MA. Peculiarities of the Brevundimonas diminuta Gl7ACA-acylase quaternary structure formation and obtaining stable enzyme analogues. APPL BIOCHEM MICRO+ 2013. [DOI: 10.1134/s0003683813060185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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High-level expression of glutaryl-7-aminocephalosporanic acid acylase from Pseudomonas diminuta NK703 in Escherichia coli by combined optimization strategies. J Biotechnol 2013; 168:607-15. [PMID: 23994688 DOI: 10.1016/j.jbiotec.2013.08.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 08/15/2013] [Accepted: 08/17/2013] [Indexed: 11/23/2022]
Abstract
In this work, a glutaryl-7-aminocephalosporanic acid acylase (GLA) coding gene was cloned from Pseudomonas diminuta NK703 which was screened from oilfield. The concerted effects of the expression system, inducing condition and culture medium on the expression of NK703 GLA in E. coli were firstly investigated. The best combination was the recombinant E. coli strain of pET-28a+GLA/BL21(DE3) with 2.0% (w/v) lactose inducing in YT medium at 25°C. Then, by optimizing the components of culture medium, a synthetic medium with dextrin and a feeding medium with glycerol as the carbon sources were developed to further enhance the GLA yield and improve the GLA solubility. In the end, the NK703 GLA activity increased about 50-fold, reached 14,470 ± 465 U/L, and the GLA productivity and the proportion of soluble GLA to the total soluble protein attained 206.0 ± 9.033 UL(-1)h(-1) and 60.13%, respectively. Scaling up the GLA production in 3.7 L fermenter under the optimized conditions identified in shake flask, the GLA activity also reached 12,406±521U/L, which was the highest report at fermenter level.
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21
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Structure of a class III engineered cephalosporin acylase: comparisons with class I acylase and implications for differences in substrate specificity and catalytic activity. Biochem J 2013; 451:217-26. [DOI: 10.1042/bj20121715] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The crystal structure of the wild-type form of glutaryl-7-ACA (7-aminocephalosporanic acid) acylase from Pseudomonas N176 and a double mutant of the protein (H57βS/H70βS) that displays enhanced catalytic efficiency on cephalosporin C over glutaryl-7-aminocephalosporanic acid has been determined. The structures show a heterodimer made up of an α-chain (229 residues) and a β-chain (543 residues) with a deep cavity, which constitutes the active site. Comparison of the wild-type and mutant structures provides insights into the molecular reasons for the observed enhanced specificity on cephalosporin C over glutaryl-7-aminocephalosporanic acid and offers the basis to evolve a further improved enzyme variant. The nucleophilic catalytic serine residue, Ser1β, is situated at the base of the active site cavity. The electron density reveals a ligand covalently bound to the catalytic serine residue, such that a tetrahedral adduct is formed. This is proposed to mimic the transition state of the enzyme for both the maturation step and the catalysis of the substrates. A view of the transition state configuration of the enzyme provides important insights into the mechanism of substrate binding and catalysis.
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22
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Orr V, Scharer J, Moo-Young M, Honeyman CH, Fenner D, Crossley L, Suen SY, Chou CP. Integrated development of an effective bioprocess for extracellular production of penicillin G acylase in Escherichia coli and its subsequent one-step purification. J Biotechnol 2012; 161:19-26. [DOI: 10.1016/j.jbiotec.2012.05.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 05/01/2012] [Accepted: 05/08/2012] [Indexed: 11/28/2022]
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23
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Simultaneous clarification of Escherichia coli culture and purification of extracellularly produced penicillin G acylase using tangential flow filtration and anion-exchange membrane chromatography (TFF-AEMC). J Chromatogr B Analyt Technol Biomed Life Sci 2012; 900:71-8. [PMID: 22709629 DOI: 10.1016/j.jchromb.2012.05.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 05/02/2012] [Accepted: 05/06/2012] [Indexed: 11/22/2022]
Abstract
Downstream purification often represents the most cost-intensive step in the manufacturing of recombinant proteins since conventional purification processes are lengthy, technically complicated, and time-consuming. To address this issue, herein we demonstrated the simultaneous clarification and purification of the extracellularly produced recombinant protein by Escherichia coli using an integrated system of tangential flow filtration and anion exchange membrane chromatography (TFF-AEMC). After cultivation in a bench-top bioreactor with 1L working volume using the developed host/vector system for high-level expression and effective secretion of recombinant penicillin G acylase (PAC), the whole culture broth was applied directly to the established system. One-step purification of recombinant PAC was achieved based on the dual nature of membrane chromatography (i.e. microfiltration-sized pores and anion-exchange chemistry) and cross-flow operations. Most contaminant proteins in the extracellular medium were captured by the anion-exchange membrane and cells remained in the retentate, whereas extracellular PAC was purified and collected in the filtrate. The batch time for both cultivation and purification was less than 24h and recombinant PAC with high purity (19 U/mg), yield (72% recovery), and productivity (41 mg of purified PAC per liter of culture) was obtained. Due to the nature of the non-selective protein secretion system and the versatility of ion-exchange membrane chromatography, the developed system can be widely applied for effective production and purification of recombinant proteins.
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24
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Chen CI, Ko YM, Lien WL, Lin YH, Li IT, Chen CH, Shieh CJ, Liu YC. Development of the reversible PGA immobilization by using the immobilized metal ion affinity membrane. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.01.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Rosini E, Monelli CS, Pollegioni L, Riva S, Monti D. On the substrate preference of glutaryl acylases. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2011.12.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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26
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Mohy Eldin MS, El Enshasy HA, Hassan ME, Haroun B, Hassan EA. Covalent immobilization of penicillin G acylase onto amine-functionalized PVC membranes for 6-APA production from penicillin hydrolysis process. II. Enzyme immobilization and characterization. J Appl Polym Sci 2012. [DOI: 10.1002/app.36690] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Akkaya Ö, Öztürk Sİ, Bolhuis A, Gümüşel F. Mutations in the translation initiation region of the pac gene resulting in increased levels of activity of penicillin G acylase. World J Microbiol Biotechnol 2012; 28:2159-64. [DOI: 10.1007/s11274-012-1021-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Accepted: 02/01/2012] [Indexed: 11/24/2022]
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28
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Rojviriya C, Pratumrat T, Saper MA, Yuvaniyama J. Improved X-ray diffraction from Bacillus megaterium penicillin G acylase crystals through long cryosoaking dehydration. Acta Crystallogr Sect F Struct Biol Cryst Commun 2011; 67:1570-4. [PMID: 22139169 PMCID: PMC3232142 DOI: 10.1107/s1744309111040462] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Accepted: 10/01/2011] [Indexed: 11/10/2022]
Abstract
Penicillin G acylase from Bacillus megaterium (BmPGA) is currently used in the pharmaceutical industry as an alternative to PGA from Escherichia coli (EcPGA) for the hydrolysis of penicillin G to produce 6-aminopenicillanic acid (6-APA), a penam nucleus for semisynthetic penicillins. Despite the significant differences in amino-acid sequence between PGAs from Gram-positive and Gram-negative bacteria, a representative PGA structure of Gram-positive origin has never been reported. In this study, crystallization and diffraction studies of BmPGA are described. Poor diffraction patterns with blurred spots at higher resolution were typical for BmPGA crystals cryocooled after a brief immersion in cryoprotectant solution. Overnight soaking in the same cryo-solution substantially improved both the mosaicity and resolution limit through the establishment of a new crystal-packing equilibrium. A crystal of BmPGA diffracted X-rays to 2.20 Å resolution and belonged to the monoclinic space group P2(1) with one molecule of BmPGA in the asymmetric unit.
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Affiliation(s)
- Catleya Rojviriya
- Department of Biochemistry and Center for Excellence in Protein Structure and Function, Faculty of Science, Mahidol University, Rama 6 Road, Phayathai, Bangkok 10400, Thailand
| | - Thunyaluck Pratumrat
- Department of Biochemistry and Center for Excellence in Protein Structure and Function, Faculty of Science, Mahidol University, Rama 6 Road, Phayathai, Bangkok 10400, Thailand
| | - Mark A. Saper
- Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, USA
| | - Jirundon Yuvaniyama
- Department of Biochemistry and Center for Excellence in Protein Structure and Function, Faculty of Science, Mahidol University, Rama 6 Road, Phayathai, Bangkok 10400, Thailand
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29
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Direct penicillin G acylase immobilization by using the self-prepared immobilized metal affinity membrane. J Memb Sci 2011. [DOI: 10.1016/j.memsci.2011.06.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Karthikeyan R, Surianarayanan M, Sudharshan S, Gunasekaran P, Asit Baran M. Biocalorimetric and respirometric studies on production of Penicillin G acylase from Bacillus badius pac in E. coli DH5α. Biochem Eng J 2011. [DOI: 10.1016/j.bej.2011.05.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Effect of Internal Diffusional Restrictions on the Hydrolysis of Penicillin G: Reactor Performance and Specific Productivity of 6-APA with Immobilized Penicillin Acylase. Appl Biochem Biotechnol 2011; 165:426-41. [DOI: 10.1007/s12010-011-9262-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Accepted: 04/04/2011] [Indexed: 10/18/2022]
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32
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Affiliation(s)
- Chetan B. Patel
- Institute of Chemical Technology, University of Mumbai, Matunga Mumbai, India
| | - Vilas G. Gaikar
- Institute of Chemical Technology, University of Mumbai, Matunga Mumbai, India
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33
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Ke YM, Chen CI, Kao PM, Chen HB, Huang HC, Yao CJ, Liu YC. Preparation of the immobilized metal affinity membrane with high amount of metal ions and protein adsorption efficiencies. Process Biochem 2010. [DOI: 10.1016/j.procbio.2009.11.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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Maresová H, Marková Z, Valesová R, Sklenár J, Kyslík P. Heterologous expression of leader-less pga gene in Pichia pastoris: intracellular production of prokaryotic enzyme. BMC Biotechnol 2010; 10:7. [PMID: 20128906 PMCID: PMC2845550 DOI: 10.1186/1472-6750-10-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Accepted: 02/03/2010] [Indexed: 12/05/2022] Open
Abstract
Background Penicillin G acylase of Escherichia coli (PGAEc) is a commercially valuable enzyme for which efficient bacterial expression systems have been developed. The enzyme is used as a catalyst for the hydrolytic production of β-lactam nuclei or for the synthesis of semi-synthetic penicillins such as ampicillin, amoxicillin and cephalexin. To become a mature, periplasmic enzyme, the inactive prepropeptide of PGA has to undergo complex processing that begins in the cytoplasm (autocatalytic cleavage), continues at crossing the cytoplasmic membrane (signal sequence removing), and it is completed in the periplasm. Since there are reports on impressive cytosolic expression of bacterial proteins in Pichia, we have cloned the leader-less gene encoding PGAEc in this host and studied yeast production capacity and enzyme authenticity. Results Leader-less pga gene encoding PGAEcunder the control of AOX1 promoter was cloned in Pichia pastoris X-33. The intracellular overproduction of heterologous PGAEc(hPGAEc) was evaluated in a stirred 10 litre bioreactor in high-cell density, fed batch cultures using different profiles of transient phases. Under optimal conditions, the average volumetric activity of 25900 U l-1 was reached. The hPGAEc was purified, characterized and compared with the wild-type PGAEc. The α-subunit of the hPGAEc formed in the cytosol was processed aberrantly resulting in two forms with C- terminuses extended to the spacer peptide. The enzyme exhibited modified traits: the activity of the purified enzyme was reduced to 49%, the ratios of hydrolytic activities with cephalexin, phenylacetamide or 6-nitro-3-phenylacetylamidobenzoic acid (NIPAB) to penicillin G increased and the enzyme showed a better synthesis/hydrolysis ratio for the synthesis of cephalexin. Conclusions Presented results provide useful data regarding fermentation strategy, intracellular biosynthetic potential, and consequences of the heterologous expression of PGAEc in P. pastoris X-33. Aberrant processing of the precursor of PGAEc in the cytosol yielded the mature enzyme with modified traits.
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Affiliation(s)
- Helena Maresová
- Laboratory of Enzyme Technology, Institute of Microbiology, vvi, Academy of Sciences of the Czech Republic, Vídenská 1083, 142 20 Prague 4, Czech Republic
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Haagensen P, Karlsen LG, Petersen J, Villadsen J. The kinetics of penicillin-V deacylation on an immobilized enzyme. Biotechnol Bioeng 2009; 25:1873-95. [PMID: 18551488 DOI: 10.1002/bit.260250715] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
An immobilized Penicillin-V-acylase (commercial name, Novozym 217) with high specificity for the phenoxyacetyl-(V)- side chain was investigated in a recycle reactor and in a batch reactor to find the enzymatic reaction rate as a function of conversion, x, substrate concentration, c(A) (0) and pH. The reaction rate depends strongly on pH, and both products, phenoxy-acetic acid and 6-APA, inhibit the reaction. Nonspecific side reactions amount to only a few per cent when c(A) (0) <150 mM and pH& gt; 6.5. The effectiveness factor for commercial-size particles is found to be about 0.65, and a value of 1.3mM is obtained for the equilibrium constant, K(eq), of the deacylation reaction. A kinetic model for the deacylation process which includes the effect of pH and of the reverse (acylation) reaction is proposed. Rate data for particles of different size are fitted to the nonlinear model. Five kinetic parameters and an effective diffusivity for the immobilized enzyme particles are determined.
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Affiliation(s)
- P Haagensen
- Instituttet for Kemiteknik, Danmarks Tekniske Højskole, 2800 Lyngby, Denmark
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36
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Hyper production of enzyme penicillin amidase by locally isolated thermo-tolerantBacillus sp. MARC-0103 from rice starch in cheese whey. ANN MICROBIOL 2009. [DOI: 10.1007/bf03179223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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37
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Nucci ER, Cruz AJG, Giordano RC. Monitoring bioreactors using principal component analysis: production of penicillin G acylase as a case study. Bioprocess Biosyst Eng 2009; 33:557-64. [DOI: 10.1007/s00449-009-0377-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2009] [Accepted: 08/17/2009] [Indexed: 10/20/2022]
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38
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Long JC, Lee WC, Guo SH. Immobilization of Cell-Associated Enzyme by Entrapping in Gluten Matrix. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242420009003634] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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39
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Vander Wielen LA, Van Buel MJ, Straathof AJJ, Luyben KC. Modelling the Enzymatic Deacylation of Penicillin G: Equilibrium and Kinetic Considerations. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242429709003614] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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40
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Recovery and partial purification of penicillin G acylase from E. coli homogenate and B. megaterium culture medium using an expanded bed adsorption column. Biochem Eng J 2009. [DOI: 10.1016/j.bej.2008.11.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Raghava S, Gupta MN. Tuning permeabilization of microbial cells by three-phase partitioning. Anal Biochem 2009; 385:20-5. [DOI: 10.1016/j.ab.2008.10.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2008] [Revised: 09/27/2008] [Accepted: 10/11/2008] [Indexed: 11/17/2022]
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42
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Volontè F, Marinelli F, Gastaldo L, Sacchi S, Pilone MS, Pollegioni L, Molla G. Optimization of glutaryl-7-aminocephalosporanic acid acylase expression in E. coli. Protein Expr Purif 2008; 61:131-7. [DOI: 10.1016/j.pep.2008.05.010] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2008] [Revised: 05/20/2008] [Accepted: 05/20/2008] [Indexed: 10/22/2022]
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43
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Narayanan N, Follonier S, Chou CP. In vivo monitoring and alleviation of extracytoplasmic stress to recombinant protein overproduction in the periplasm of Escherichia coli. Biochem Eng J 2008. [DOI: 10.1016/j.bej.2008.05.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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45
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Use of neural networks in the mathematical modelling of the enzymic synthesis of amoxicillin catalysed by penicillin G acylase immobilized in chitosan. World J Microbiol Biotechnol 2008. [DOI: 10.1007/s11274-008-9670-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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46
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Gonçalves LRB, Ferreira ALO, Fernandez-Lafuente R, Guisan JM, Giordano RC, Giordano RLC. Influence of mass transfer limitations on the enzymatic synthesis of β-lactam antibiotics catalyzed by penicillin G acylase immobilized on glioxil-agarose. Bioprocess Biosyst Eng 2007; 31:411-8. [DOI: 10.1007/s00449-007-0176-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2007] [Accepted: 11/09/2007] [Indexed: 11/24/2022]
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47
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Ferreira ALO, Giordano RLC, Giordano RC. Nonconventional Reactor for Enzymatic Synthesis of Semi-Synthetic β-Lactam Antibiotics. Ind Eng Chem Res 2007. [DOI: 10.1021/ie0614071] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrea L. O. Ferreira
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Bloco 709, S/N, Pici, Fortaleza, Ceará, Brazil, 60455-760
| | - Raquel L. C. Giordano
- Departamento de Engenharia Química, Universidade Federal de São Carlos, c.p. 676, São Carlos, SP, Brazil 13.565-905
| | - Roberto C. Giordano
- Departamento de Engenharia Química, Universidade Federal de São Carlos, c.p. 676, São Carlos, SP, Brazil 13.565-905
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48
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Arshad R, Farooq S, Ali SS. 6-aminopenicillanic acid production by intact cells of E. coli containing penicillin G acylase (PGA). Pak J Biol Sci 2007; 10:3190-4. [PMID: 19090124 DOI: 10.3923/pjbs.2007.3190.3194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The aim of present study was to optimize conditions for conversion of penicillin G into 6-APA using intact crude cells of locally collected PGA producing bacterial strains as biocatalyst. Corn steep liquor medium supplemented with phenylacetic acid was used for PGA production. For enzymatic conversion of penicillin G into 6-APA by PGA impregnated bacterial cells, a maximum reaction time of 4 h was found adequate. The procedure for extraction and crystallization of 6-APA from the enzyme reaction mixture was standardized. Isolation process was carried out under controlled pH conditions and 6-APA crystals were recovered from the reaction mixture via filtration, concentration and drying. The maximum PGA activity was observed in Escherichia coli strain BDCS-N-FMu12 (6.4 mg 6-APA h(-1) mg(-1) wet cells) whereas Bacillus megaterium (ATCC 14945 used as check) exhibited only 2.4 mg 6-APA h(-1) mg(-1) wet cells. The overall yield of 6-APA crystals obtained after enzymatic conversion of penicillin G ranged between 37-55 and 47-68% in foreign and local strains, respectively. BDCS-N-FMu12 was identified as the best PGA producer with 68% 6-APA conversion whereas ATCC 14945 showed the lowest conversion (37%). The recovery of 6-APA (68%) obtained by using crude intact cells as cheap biocatalyst appeared promising. The process of enzyme fermentation and 6-APA crystallization optimized during this study seems cost-effective and environment-friendly. However, further studies are required to scale up the 6-APA biosynthesis reaction for achieving 80-90% conversion of penicillin G into 6-APA by PGA hyper-producing locally collected strains of E. coli.
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Affiliation(s)
- Rubina Arshad
- Nuclear Institute for Agriculture and Biology, P.O. Box 128, Jhang Road, Faisalabad, Pakistan
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49
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Pinotti LM, Silva RG, Zangirolami TC, Giordano RLC. Maintenance of penicillin G acylase expression by B. megaterium: preservation methods and activity recovery. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2007. [DOI: 10.1590/s0104-66322007000300001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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50
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Chen CI, Chen CW, Huang CW, Liu YC. Simultaneous purification and immobilization of penicillin G acylase using bifunctional membrane. J Memb Sci 2007. [DOI: 10.1016/j.memsci.2007.03.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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