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Jiang M, Liu Y, Xue H, Wang Y, Wang C, Yang F, Li X. Expression and biochemical characterization of a Bacillus subtilis catalase in Pichia pastoris X-33. Protein Expr Purif 2023; 208-209:106277. [PMID: 37100104 DOI: 10.1016/j.pep.2023.106277] [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: 12/13/2022] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 04/28/2023]
Abstract
Catalase, which catalyzes the decomposition of H2O2 to H2O and O2, is widely used to reduce H2O2 in industrial applications, such as in food processing, textile dyeing and wastewater treatment. In this study, the catalase (KatA) from Bacillus subtilis was cloned and expressed in the yeast Pichia pastoris X-33. The effect of the promoter in the expression plasmid on the activity level of the secreted KatA protein was also studied. First, the gene encoding KatA was cloned and inserted into a plasmid containing an inducible alcohol oxidase 1 promoter (pAOX1) or a constitutive glyceraldehyde-3-phosphate dehydrogenase promoter (pGAP). The recombinant plasmids were validated by colony PCR and sequencing and then linearized and transformed into the yeast P. pastoris X-33 for expression. With the promoter pAOX1, the maximum yield of KatA in the culture medium reached 338.8 ± 9.6 U/mL in 2 days of shake flask cultivation, which was approximately 2.1-fold greater than the maximum yield obtained with the promoter pGAP. The expressed KatA was then purified from the culture medium by anion exchange chromatography, and its specific activity was determined to be 14826.58 U/mg. Finally, the purified KatA exhibited optimum activity at 25 °C and pH 11.0. Its Km for hydrogen peroxide was 10.9 ± 0.5 mM, and its kcat/Km was 5788.1 ± 25.6 s-1 mM-1. Through the work presented in this article, we have therefore demonstrated efficient expression and purification of KatA in P. pastoris, which might be advantageous for scaling up the production of KatA for use in a variety of biotechnological applications.
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Affiliation(s)
- Mengtong Jiang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Yuxin Liu
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Hongjian Xue
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Yiqi Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Conggang Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.
| | - Fan Yang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.
| | - Xianzhen Li
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
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Chi H, Wang Y, Xia B, Zhou Y, Lu Z, Lu F, Zhu P. Enhanced Thermostability and Molecular Insights for l-Asparaginase from Bacillus licheniformis via Structure- and Computation-Based Rational Design. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:14499-14509. [PMID: 36341695 DOI: 10.1021/acs.jafc.2c05712] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
l-Asparaginase has gained much attention for effectively treating acute lymphoblastic leukemia (ALL) and mitigating carcinogenic acrylamide in fried foods. Due to high-dose dependence for clinical treatment and low mitigation efficiency for thermal food processes caused by poor thermal stability, a method to achieve thermostable l-asparaginase has become a critical bottleneck. In this study, a rational design including free energy combined with structural and conservative analyses was applied to engineer the thermostability of l-asparaginase from Bacillus licheniformis (BlAsnase). Two enhanced thermostability mutants D172W and E207A were screened out by site-directed saturation mutagenesis. The double mutant D172W/E207A exhibited highly remarkable thermostability with a 65.8-fold longer half-life at 55 °C and 5 °C higher optimum reaction temperature and melting temperature (Tm) than those of wild-type BlAsnase. Further, secondary structure, sequence, molecular dynamics (MD), and 3D-structure analysis revealed that the excellent thermostability of the mutant D172W/E207A was on account of increased hydrophobicity and decreased flexibility, highly rigid structure, hydrophobic interactions, and favorable electrostatic potential. As the first report of rationally designing l-asparaginase with improved thermostability from B. licheniformis, this study offers a facile and efficient process to improve the thermostability of l-asparaginase for industrial applications.
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Affiliation(s)
- Huibing Chi
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing210095, China
| | - Yilian Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing210095, China
| | - Bingjie Xia
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing210095, China
| | - Yawen Zhou
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing210095, China
| | - Zhaoxin Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing210095, China
| | - Fengxia Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing210095, China
| | - Ping Zhu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing210095, China
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Liao H, Gong JY, Yang Y, Jiang ZD, Zhu YB, Li LJ, Ni H, Li QB. Enhancement of the thermostability of Aspergillus niger α-l-rhamnosidase based on PoPMuSiC algorithm. J Food Biochem 2019; 43:e12945. [PMID: 31368575 DOI: 10.1111/jfbc.12945] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/30/2019] [Accepted: 05/24/2019] [Indexed: 11/27/2022]
Abstract
α-l-Rhamnosidase is a biotechnologically important enzyme in food industry and in the preparation of drugs and drug precursors. To expand the functionality of our previously cloned α-l-rhamnosidase from Aspergillus niger JMU-TS528, 14 mutants were constructed based on the changes of the folding free energy (ΔΔG), predicted by the PoPMuSiC algorithm. Among them, six single-site mutants displayed higher thermal stability than wild type (WT). The combinational mutant K573V-E631F displayed even higher thermostability than six single-site mutants. The spectra analyses displayed that the WT and K573V-E631F had almost similar secondary and tertiary structure profiles. The simulated protein structure-based interaction analysis and molecular dynamics calculation were further implemented to assess the conformational preferences of the K573V-E631F. The improved thermostability of mutant K573V-E631F may be attributed to the introduction of new cation-π and hydrophobic interactions, and the overall improvement of the enzyme conformation. PRACTICAL APPLICATIONS: The stability of enzymes, particularly with regards to thermal stability remains a critical issue in industrial biotechnology and industrial processing generally tends to higher ambient temperature to inhibit microbial growth. Most of the α-l-rhamnosidases are usually active at temperature from 30 to 60°C, which are apt to denature at temperatures over 60°C. To expand the functionality of our previously cloned α-l-rhamnosidase from Aspergillus niger JMU-TS528, we used protein engineering methods to increase the thermal stability of the α-l-rhamnosidase. Practically, conducting reactions at high temperatures enhances the solubility of substrates and products, increases the reaction rate thus reducing the reaction time, and inhibits the growth of contaminating microorganisms. Thus, the improvement on the thermostability of α-l-rhamnosidase on the one hand can increase enzyme efficacy; on the other hand, the high ambient temperature would enhance the solubility of natural substrates of α-l-rhamnosidase, such as naringin, rutin, and hesperidin, which are poorly dissolved in water at room temperature. Protein thermal resistance is an important issue beyond its obvious industrial importance. The current study also helps in the structure-function relationship study of α-l-rhamnosidase.
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Affiliation(s)
- Hui Liao
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Jian-Ye Gong
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Yan Yang
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Ze-Dong Jiang
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Yan-Bing Zhu
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Li-Jun Li
- College of Food and Biological Engineering, Jimei University, Xiamen, China.,Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, China.,Research Center of Food Biotechnology of Xiamen City, Xiamen, China
| | - Hui Ni
- College of Food and Biological Engineering, Jimei University, Xiamen, China.,Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, China.,Research Center of Food Biotechnology of Xiamen City, Xiamen, China
| | - Qing-Biao Li
- College of Food and Biological Engineering, Jimei University, Xiamen, China
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Samson M, Yang T, Omar M, Xu M, Zhang X, Alphonse U, Rao Z. Improved thermostability and catalytic efficiency of overexpressed catalase from B. pumilus ML 413 (KatX2) by introducing disulfide bond C286-C289. Enzyme Microb Technol 2018; 119:10-16. [DOI: 10.1016/j.enzmictec.2018.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 06/25/2018] [Accepted: 08/08/2018] [Indexed: 01/14/2023]
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Kou F, Zhao J, Liu J, Sun C, Guo Y, Tan Z, Cheng F, Li Z, Zheng P, Sun J. Enhancement of the thermal and alkaline pH stability of Escherichia coli lysine decarboxylase for efficient cadaverine production. Biotechnol Lett 2018; 40:719-727. [PMID: 29349625 DOI: 10.1007/s10529-018-2514-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/10/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To enhance the thermal and alkaline pH stability of the lysine decarboxylase from Escherichia coli (CadA) by engineering the decameric interface and explore its potential for industrial applications. RESULTS The mutant T88S was designed for improved structural stability by computational analysis. The optimal pH and temperature of T88S were 7.0 and 55 °C (5.5 and 50 °C for wild-type). T88S showed higher thermostability with a 2.9-fold increase in the half-life at 70 °C (from 11 to 32 min) and increased melting temperature (from 76 to 78 °C). Additionally, the specific activity and pH stability (residual activity after 10 h incubation) of T88S at pH 8.0 were increased to 164 U/mg and 78% (58 U/mg and 57% for wild-type). The productivity of cadaverine with T88S (284 g L-lysine L-1 and 5 g DCW L-1) was 40 g L-1 h-1, in contrast to 28 g L-1 h-1 with wild-type. CONCLUSION The mutant T88S showed high thermostability, pH stability, and activity at alkaline pH, indicating that this mutant is a promising biocatalyst for industrial production of cadaverine.
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Affiliation(s)
- Fengyu Kou
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Jing Zhao
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Jiao Liu
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Cunmin Sun
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Yanmei Guo
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Zijian Tan
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Feng Cheng
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Zhimin Li
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Ping Zheng
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
| | - Jibin Sun
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
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Jia X, Lin X, Lin C, Lin L, Chen J. Enhanced alkaline catalase production by Serratia marcescens FZSF01: Enzyme purification, characterization, and recombinant expression. ELECTRON J BIOTECHN 2017. [DOI: 10.1016/j.ejbt.2017.10.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Handtke S, Albrecht D, Zühlke D, Otto A, Becher D, Schweder T, Riedel K, Hecker M, Voigt B. Bacillus pumilus KatX2 confers enhanced hydrogen peroxide resistance to a Bacillus subtilis PkatA::katX2 mutant strain. Microb Cell Fact 2017; 16:72. [PMID: 28446175 PMCID: PMC5406934 DOI: 10.1186/s12934-017-0684-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 04/19/2017] [Indexed: 11/27/2022] Open
Abstract
Background Bacillus pumilus cells exhibit a significantly higher resistance to hydrogen peroxide compared to closely related Bacilli like Bacillus subtilis. Results In this study we analyzed features of the catalase KatX2 of B. pumilus as one of the most important parts of the cellular response to hydrogen peroxide. KatX2, the vegetative catalase expressed in B. pumilus, was compared to the vegetative catalase KatA of B. subtilis. Data of our study demonstrate that B. pumilus can degrade toxic concentrations of hydrogen peroxide faster than B. subtilis. By replacing B. subtiliskatA gene by katX2 we could significantly enhance its resistance to H2O2 and its potential to eliminate this toxic compound. Mutant cells showed a 1.5- to 2-fold higher survival to toxic concentrations of hydrogen peroxide compared to wild type cells. Furthermore, we found reversible but also irreversible oxidations of the KatX2 protein which, in contrast to KatA, contains several cysteine residues. Conclusions Our study indicates that the catalase KatX2 plays a major role in the increased resistance of B. pumilus to oxidative stress caused by hydrogen peroxide. Resistance to hydrogen peroxide of other Bacilli can be enhanced by exchanging the native catalase in the cells with katX2. Electronic supplementary material The online version of this article (doi:10.1186/s12934-017-0684-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Stefan Handtke
- Institute for Microbiology, University of Greifswald, 17489, Greifswald, Germany.,Institute of Marine Biotechnology, 17489, Greifswald, Germany
| | - Dirk Albrecht
- Institute for Microbiology, University of Greifswald, 17489, Greifswald, Germany
| | - Daniela Zühlke
- Institute for Microbiology, University of Greifswald, 17489, Greifswald, Germany
| | - Andreas Otto
- Institute for Microbiology, University of Greifswald, 17489, Greifswald, Germany
| | - Dörte Becher
- Institute for Microbiology, University of Greifswald, 17489, Greifswald, Germany.,Institute of Marine Biotechnology, 17489, Greifswald, Germany
| | - Thomas Schweder
- Institute of Pharmacy, University of Greifswald, 17489, Greifswald, Germany.,Institute of Marine Biotechnology, 17489, Greifswald, Germany
| | - Kathrin Riedel
- Institute for Microbiology, University of Greifswald, 17489, Greifswald, Germany.,Institute of Marine Biotechnology, 17489, Greifswald, Germany
| | - Michael Hecker
- Institute for Microbiology, University of Greifswald, 17489, Greifswald, Germany.,Institute of Marine Biotechnology, 17489, Greifswald, Germany
| | - Birgit Voigt
- Institute for Microbiology, University of Greifswald, 17489, Greifswald, Germany. .,Institute of Marine Biotechnology, 17489, Greifswald, Germany. .,Research Institute for Leather and Plastic Sheeting, Meißner-Ring 1-5, 09599, Freiberg, Germany.
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Shao M, Sha Z, Zhang X, Rao Z, Xu M, Yang T, Xu Z, Yang S. Efficient androst-1,4-diene-3,17-dione production by co-expressing 3-ketosteroid-Δ 1 -dehydrogenase and catalase in Bacillus subtilis. J Appl Microbiol 2017; 122:119-128. [PMID: 27797429 DOI: 10.1111/jam.13336] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/11/2016] [Accepted: 10/17/2016] [Indexed: 01/02/2023]
Abstract
AIMS 3-ketosteroid-Δ1 -dehydrogenase (KSDD), a flavin adenine dinucleotide (FAD)-dependent enzyme involved in sterol metabolism, specifically catalyses the conversion of androst-4-ene-3,17-dione (AD) to androst-1,4-diene-3,17-dione (ADD). However, the low KSDD activity and the toxic effects of hydrogen peroxide (H2 O2 ) generated during the biotransformation of AD to ADD with FAD regeneration hinder its application on AD conversion. The aim of this work was to improve KSDD activity and eliminate the toxic effects of the generated H2 O2 to enhance ADD production. METHODS AND RESULTS The ksdd gene obtained from Mycobacterium neoaurum JC-12 was codon-optimized to increase its expression level in Bacillus subtilis, and the KSDD activity reached 12·3 U mg-1 , which was sevenfold of that of codon-unoptimized gene. To improve AD conversion, catalase was co-expressed with KSDD in B. subtilis 168/pMA5-ksddopt -katA to eliminate the toxic effects of H2 O2 generated during AD conversion. Finally, under optimized bioconversion conditions, fed-batch strategy was carried out and the ADD yield improved to 8·76 g l-1 . CONCLUSIONS This work demonstrates the potential to improve enzyme activity by codon-optimization and eliminate the toxic effects of H2 O2 by co-expressing catalase. SIGNIFICANCE AND IMPACT OF THE STUDY This study showed the highest ADD productivity ever reported and provides a promising strain for efficient ADD production in the pharmaceutical industry.
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Affiliation(s)
- M Shao
- Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Z Sha
- Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - X Zhang
- Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Z Rao
- Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - M Xu
- Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - T Yang
- Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Z Xu
- Laboratory of Pharmaceutical Engineering, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, Jiangsu Province, China
| | - S Yang
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
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Heterologous expression and characterization of a new heme-catalase in Bacillus subtilis 168. ACTA ACUST UNITED AC 2016; 43:729-40. [DOI: 10.1007/s10295-016-1758-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 02/29/2016] [Indexed: 01/09/2023]
Abstract
Abstract
Reactive oxygen species (ROS) is an inherent consequence to all aerobically living organisms that might lead to the cells being lethal and susceptible to oxidative stress. Bacillus pumilus is characterized by high-resistance oxidative stress that stimulated our interest to investigate the heterologous expression and characterization of heme-catalase as potential biocatalyst. Results indicated that recombinant enzyme significantly exhibited the high catalytic activity of 55,784 U/mg expressed in Bacillus subtilis 168 and 98.097 µmol/min/mg peroxidatic activity, the apparent K m of catalytic activity was 59.6 ± 13 mM with higher turnover rate (K cat = 322.651 × 103 s−1). The pH dependence of catalatic and peroxidatic activity was pH 7.0 and pH 4.5 respectively with temperature dependence of 40 °C and the recombinant heme-catalase exhibited a strong Fe2+ preference. It was further revealed that catalase KatX2 improved the resistance oxidative stress of B. subtilis. These findings suggest that this B. pumilus heme-catalase can be considered among the industrially relevant biocatalysts due to its exceptional catalytic rate and high stability and it can be a potential candidate for the improvement of oxidative resistance of industrially produced strains.
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Enhancement of the thermostability of Streptomyces kathirae SC-1 tyrosinase by rational design and empirical mutation. Enzyme Microb Technol 2015; 77:54-60. [DOI: 10.1016/j.enzmictec.2015.06.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/20/2015] [Accepted: 06/08/2015] [Indexed: 11/17/2022]
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Characterization of an acid-stable catalase KatB isolated from Bacillus altitudinis SYBC hb4. ANN MICROBIOL 2015. [DOI: 10.1007/s13213-015-1089-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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12
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Lončar N, Fraaije MW. Catalases as biocatalysts in technical applications: current state and perspectives. Appl Microbiol Biotechnol 2015; 99:3351-7. [DOI: 10.1007/s00253-015-6512-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 02/26/2015] [Accepted: 02/27/2015] [Indexed: 11/30/2022]
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