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Acar M, Abul N, Yildiz S, Taskesenligil ED, Gerni S, Unver Y, Kalin R, Ozdemir H. Affinity-based and in a single step purification of recombinant horseradish peroxidase A2A isoenzyme produced by Pichia pastoris. Bioprocess Biosyst Eng 2023; 46:523-534. [PMID: 36527454 DOI: 10.1007/s00449-022-02837-2] [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: 08/25/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
Horseradish peroxidase (HRP) is an oxidoreductase enzyme and oxidizes various inorganic and organic compounds. It has wide application areas such as immunological tests, probe-based test techniques, removal of phenolic pollutants from wastewater and organic synthesis. HRP is found in the root of the horseradish plant as a mixture of different isoenzymes, and it is very difficult to separate these enzymes from each other. In this regard, recombinant production is a very advantageous method in terms of producing the desired isoenzyme. This study was performed to produce HRP A2A isoenzyme extracellularly in Pichia pastoris and to purify this enzyme in a single step using a 3-amino-4-chloro benzohydrazide affinity column. First, codon-optimized HRP A2A gene was amplified and inserted into pPICZαC. So, obtained pPICZαC-HRPA2A was cloned in E. coli cells. Then, P. pastoris X-33 cells were transformed with linearized recombinant DNA and a yeast clone was cultivated for extracellular recombinant HRP A2A (rHRP A2A) enzyme production. Then, the purification of this enzyme was performed in a single step by affinity chromatography. The molecular mass of purified rHRP A2A enzyme was found to be about 40 kDa. According to characterization studies of the purified enzyme, the optimum pH and ionic strength for the rHRP A2A isoenzyme were determined to be 6.0 and 0.04 M, respectively, and o-dianisidine had the highest specificity with the lowest Km and Vmax values. Thus, this is an economical procedure to purify HRP A2A isoenzyme without time-consuming and laborious isolation from an isoenzyme mixture.
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Affiliation(s)
- Melek Acar
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Nurgul Abul
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Seyda Yildiz
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Ezgi Dag Taskesenligil
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Serpil Gerni
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Yagmur Unver
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey.
| | - Ramazan Kalin
- Department of Basic Sciences, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
| | - Hasan Ozdemir
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey.
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2
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Sürmeli Y, Şanlı-Mohamed G. Engineering of xylanases for the development of biotechnologically important characteristics. Biotechnol Bioeng 2023; 120:1171-1188. [PMID: 36715367 DOI: 10.1002/bit.28339] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/19/2022] [Accepted: 01/26/2023] [Indexed: 01/31/2023]
Abstract
Xylanases are the main biocatalysts used for the reduction of the xylan backbone from hemicellulose, randomly splitting off β-1,4-glycosidic linkages between xylopyranosyl residues. Xylanase market has been annually estimated at 500 million US Dollars and they are potentially used in broad industrial process ranges such as paper pulp biobleaching, xylo-oligosaccharide production, and biofuel manufacture from lignocellulose. The highly stable xylanases are preferred in the downstream procedure of industrial processes because they can tolerate severe conditions. Almost all native xylanases can not endure adverse conditions thus they are industrially not proper to be utilized. Protein engineering is a powerful technology for developing xylanases, which can effectively work in adverse conditions and can meet requirements for industrial processes. This study considered state-of-the-art strategies of protein engineering for creating the xylanase gene diversity, high-throughput screening systems toward upgraded traits of the xylanases, and the prediction and comprehensive analysis of the target mutations in xylanases by in silico methods. Also, key molecular factors have been elucidated for industrial characteristics (alkaliphilic enhancement, thermal stability, and catalytic performance) of GH11 family xylanases. The present review explores industrial characteristics improved by directed evolution, rational design, and semi-rational design as protein engineering approaches for pulp bleaching process, xylooligosaccharides production, and biorefinery & bioenergy production.
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Affiliation(s)
- Yusuf Sürmeli
- Department of Agricultural Biotechnology, Tekirdağ Namık Kemal University, Tekirdağ, Turkey
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3
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Wang J, Zhang S, Li C, Liu X, Xu Z, Wang T. Efficient secretion of xylanase in Escherichia coli for production of prebiotic xylooligosaccharides. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113481] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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4
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Zhang F, He H, Deng T, Ge H, Yu C, Feng L, Huang F, Yi L. N-Terminal Fused Signal Peptide Prompted Extracellular Production of a Bacillus-Derived Alkaline and Thermo Stable Xylanase in E. coli Through Cell Autolysis. Appl Biochem Biotechnol 2020; 192:339-352. [PMID: 32382941 DOI: 10.1007/s12010-020-03323-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/23/2020] [Indexed: 01/06/2023]
Abstract
Xylanases are extensively used as industrial enzymes for its ability of hydrolyzing xylan to oligosaccharides. Here, XynHB, a thermo and alkaline stable xylanase derived from Bacillus pumilus HBP8, was extracellularly produced in E. coli cells through N-terminal-fused signal peptides. We found that the matured XynHB itself could be auto-secreted out of E. coli BL21(DE3) cells at a very low level, and two Sec-pathway signal peptides, PelB and OmpA, and one dual Sec-Tat-pathway signal peptide, FhuD, could effectively prompt its extracellular production up to 12-fold. Our results showed that PelB signal peptide led to the highest extracellular production of XynHB for approximately 54.1 μg/mL, and FhuD-fused XynHB possessed the highest specific activity of 1746.0 U/mg at 70 °C. Meanwhile, our studies also indicated that PelB- and FhuD-fused XynHB might disrupt E. coli cells' periplasm during their secretion process, thus causing cell lysis to facilitate their extracellular production. Moreover, further characterization revealed that the extracellular production of XynHB was not affected by the outer membrane permeability of E. coli cells. Our studies provided an advantageous strategy for the extracellular production of xylanase in E. coli, which may also be used for E. coli autolysis in the future.
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Affiliation(s)
- Faying Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Engineering Research Center for Bio-enzyme Catalysis, College of Life Sciences, Hubei University, NO. 368 Youyi Road, Wuchang District, Wuhan, 430062, Hubei, China
| | - Huahua He
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Engineering Research Center for Bio-enzyme Catalysis, College of Life Sciences, Hubei University, NO. 368 Youyi Road, Wuchang District, Wuhan, 430062, Hubei, China
| | - Ting Deng
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Engineering Research Center for Bio-enzyme Catalysis, College of Life Sciences, Hubei University, NO. 368 Youyi Road, Wuchang District, Wuhan, 430062, Hubei, China
| | - Haoran Ge
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Engineering Research Center for Bio-enzyme Catalysis, College of Life Sciences, Hubei University, NO. 368 Youyi Road, Wuchang District, Wuhan, 430062, Hubei, China
| | - Chan Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Engineering Research Center for Bio-enzyme Catalysis, College of Life Sciences, Hubei University, NO. 368 Youyi Road, Wuchang District, Wuhan, 430062, Hubei, China
| | - Liang Feng
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Fenghong Huang
- Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, 430062, China
| | - Li Yi
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Engineering Research Center for Bio-enzyme Catalysis, College of Life Sciences, Hubei University, NO. 368 Youyi Road, Wuchang District, Wuhan, 430062, Hubei, China.
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Directed modification of a ruminal cellulase gene (CMC-1) from a metagenomic library isolated from Yunnan gayal (Bos frontalis). Arch Microbiol 2020; 202:1117-1126. [PMID: 32060600 DOI: 10.1007/s00203-020-01812-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 01/06/2020] [Accepted: 01/08/2020] [Indexed: 12/21/2022]
Abstract
Gayal (Bos frontalis) of the Yunnan region is well adapted to harsh environmental conditions. Its diet consists predominantly of bamboo, reeds, and woody plants, suggesting that the rumen of this species contains many fiber-degrading bacteria and cellulases. The aim of this study was to identify and modify specific cellulases found in the gayal rumen. In the present study, a directed evolution strategy of error-prone PCR was employed to improve the activity or optimal temperature of a cellulase gene (CMC-1) isolated from gayal rumen. The CMC-1 gene was heterologously expressed in Escherichia coli (E. coli) BL21, and the recombinant CMC-1 protein hydrolyzed carboxyl methyl cellulose (CMC) with an optimal activity at pH 5.0 and 50 °C. A library of mutated ruminal CMC-1 genes was constructed and a mutant EP-15 gene was identified. Sequencing analysis revealed that EP-15 and CMC-1 belonged to the glycosyl hydrolase family 5 (GHF5) and had the highest homology to a cellulase (Accession No. WP_083429257.1) from Prevotellaceae bacterium, HUN156. There were similar predicted GH5 domains in EP-15 and CMC-1. The EP-15 gene was heterologously expressed and exhibited cellulase activity in E. coli BL21 at pH 5.0, but the optimum temperature for its activity was reduced from that of CMC-1 (50 °C) to 45 °C, which was closer to the physiological temperature of the rumen (40 °C). The cellulase activity of EP-15 was about two times higher than CMC-1 at 45 °C or PH 5.0, and also was more stable in response to temperature and pH changes compared to CMC-1. This study successfully isolated and modified a ruminal cellulase gene from metagenomics library of Yunnan gayal. Our findings may obtain a useful cellulase in future applications and present the first evidence of modified cellulases in the gayal rumen.
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Chadha BS, Kaur B, Basotra N, Tsang A, Pandey A. Thermostable xylanases from thermophilic fungi and bacteria: Current perspective. BIORESOURCE TECHNOLOGY 2019; 277:195-203. [PMID: 30679061 DOI: 10.1016/j.biortech.2019.01.044] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/06/2019] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
Thermostable xylanases from thermophilic fungi and bacteria have a wide commercial acceptability in feed, food, paper and pulp and bioconversion of lignocellulosics with an estimated annual market of USD 500 Million. The genome wide analysis of thermophilic fungi clearly shows the presence of elaborate genetic information coding for multiple xylanases primarily coding for GH10, GH11 in addition to GH7 and GH30 xylanases. The transcriptomics and proteome profiling has given insight into the differential expression of these xylanases in some of the thermophilic fungi. Bioprospecting has resulted in identification of novel thermophilic xylanases that have been endorsed by the industrial houses for heterologous over- expression and formulations. The future use of xylanases is expected to increase exponentially for their role in biorefineries. The discovery of new and improvement of existing xylanases using molecular tools such as directed evolution is expected to be the mainstay to meet increasing demand of thermostable xylanases.
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Affiliation(s)
- B S Chadha
- Department of Microbiology, Guru Nanak Dev University, Amritsar 143 005, India.
| | - Baljit Kaur
- Department of Microbiology, Guru Nanak Dev University, Amritsar 143 005, India
| | - Neha Basotra
- Department of Microbiology, Guru Nanak Dev University, Amritsar 143 005, India
| | - Adrian Tsang
- Center for Structural and Functional Genomics, Concordia University, Sherbrooke Street West, Montreal, Quebec H4B 1R6, Canada.
| | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow 226 001, India.
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7
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Unver Y, Yildiz M, Kilic D, Taskin M, Firat A, Askin H. Efficient expression of recombinant human telomerase inhibitor 1 (hPinX1) in Pichia pastoris. Prep Biochem Biotechnol 2018; 48:535-540. [PMID: 29958061 DOI: 10.1080/10826068.2018.1466160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PinX1 encoded by a remarkable tumor suppressor gene and located in human chromosome 8p23 is known as telomerase inhibitor. In recent years, this protein has been of interest as clinically tumor suppressor. Pichia pastoris expression system is preferred to produce heterologous proteins and is suitable for industrial and research purposes. In the present study, human PinX1 gene (hPinX1) was cloned in E. coli One Shot TOP10 cells and overexpressed in P. pastoris strain X-33 intracellularly, using a strong AOX (alcohol oxidase) promoter. The recombinant cells were grown in shaking flask. Induction time, methanol concentration and initial pH were optimized for obtaining high levels of hPinX1 protein production. Recombinant protein production was confirmed by Western blot analysis and the relative expression levels of rhPinX1 were quantified. According to Western blot analysis, molecular mass of produced hPinX1 was determined as 47.5 kDa. At the end of optimization studies, the best fermentation conditions were determined as induction time 48 h, methanol concentration 3% and initial culture pH 5.0. This process would be an applicable way for obtaining recombinant hPinX1 using P. pastoris expression system. This is the first report on recombinant production of hPinX1 in P. pastoris.
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Affiliation(s)
- Yagmur Unver
- a Department of Molecular Biology and Genetics, Faculty of Science , Ataturk University , Erzurum , Turkey
| | - Melike Yildiz
- a Department of Molecular Biology and Genetics, Faculty of Science , Ataturk University , Erzurum , Turkey
| | - Deryanur Kilic
- b Department of Chemistry, Sabire Yazıcı Faculty of Science and Letters , Aksaray University , Aksaray , Turkey
| | - Mesut Taskin
- a Department of Molecular Biology and Genetics, Faculty of Science , Ataturk University , Erzurum , Turkey
| | - Abdulhadi Firat
- a Department of Molecular Biology and Genetics, Faculty of Science , Ataturk University , Erzurum , Turkey
| | - Hakan Askin
- a Department of Molecular Biology and Genetics, Faculty of Science , Ataturk University , Erzurum , Turkey
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8
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Yadav D, Ranjan B, Mchunu N, Roes-Hill ML, Kudanga T. Secretory expression of recombinant small laccase from Streptomyces coelicolor A3(2) in Pichia pastoris. Int J Biol Macromol 2017; 108:642-649. [PMID: 29203348 DOI: 10.1016/j.ijbiomac.2017.11.169] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/25/2017] [Accepted: 11/27/2017] [Indexed: 01/14/2023]
Abstract
This work reports for the first time the secretory expression of the small laccase (SLAC) from Streptomyces coelicolor A3(2) in Pichia pastoris. Using an AOX1 promoter and α factor as a secretion signal, the recombinant P. pastoris harbouring the laccase gene (rSLAC) produced high titres of extracellular laccase (500 ± 10 U/l), which were further increased seven fold by pre-incubation at 80 °C for 30 min. The enzyme (∼38 kDa) had an optimum activity at 80 °C, but optimum pH varied with substrate used. Km values for ABTS, SGZ and 2,6-DMP were 142.85 μM, 10 μM and 54.55 μM and the corresponding kcat values were 60.6 s-1, 25.36 s-1 and 27.84 s-1, respectively. The t1/2 values of the rSLAC at 60 °C, 70 °C, 80 °C were 60 h, 32 h and 10 h, respectively. The enzyme deactivation energy (Ed) was 117.275 kJ/mol while ΔG, ΔH and ΔS for thermal inactivation of the rSLAC were all positive. The rSLAC decolourised more than 90% of Brilliant Blue G and Trypan Blue dye in 6 h without the addition of a mediator. High titres of SLAC expressed in P. pastoris enhance its potential for various industrial applications.
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Affiliation(s)
- Deepti Yadav
- Department of Biotechnology and Food Technology, Faculty of Applied Sciences, Durban University of Technology, P.O. Box 1334, Durban, 4000, South Africa
| | - Bibhuti Ranjan
- Department of Biotechnology and Food Technology, Faculty of Applied Sciences, Durban University of Technology, P.O. Box 1334, Durban, 4000, South Africa
| | - Nokuthula Mchunu
- Department of Biotechnology and Food Technology, Faculty of Applied Sciences, Durban University of Technology, P.O. Box 1334, Durban, 4000, South Africa
| | - Marilize Le Roes-Hill
- Biocatalysis and Technical Biology Research Group, Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, Bellville Campus, Symphony Way, PO Box 1906, Bellville, 7535, South Africa
| | - Tukayi Kudanga
- Department of Biotechnology and Food Technology, Faculty of Applied Sciences, Durban University of Technology, P.O. Box 1334, Durban, 4000, South Africa.
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Abdul Wahab MKHB, Jonet MAB, Illias RM. Thermostability enhancement of xylanase Aspergillus fumigatus RT-1. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.09.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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10
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Lu Y, Fang C, Wang Q, Zhou Y, Zhang G, Ma Y. High-level expression of improved thermo-stable alkaline xylanase variant in Pichia Pastoris through codon optimization, multiple gene insertion and high-density fermentation. Sci Rep 2016; 6:37869. [PMID: 27897254 PMCID: PMC5126662 DOI: 10.1038/srep37869] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 10/28/2016] [Indexed: 01/13/2023] Open
Abstract
In paper industry, xylanases are used to increase the pulp properties in bleaching process as its eco-friendly nature. The xylanases activity is hindered by high temperature and alkaline conditions with high enzyme production cost in the paper industry. Here, XynHB, an alkaline stable xylanase from Bacillus pumilus HBP8 was mutated at N188A to XynHBN188A. Expressed mutant in E. coli showed 1.5-fold higher xylanase activity than XynHB at 60 °C. The mutant expressed in Pichia pastoris was glycosylated, remained stable for 30 min at 60 °C. XynHBN188A optimized based on codon usage bias for P. pastoris (xynHBN188As) showed an increase of 39.5% enzyme activity. The strain Y16 forming the largest hydrolysis halo in the xylan plate was used in shake flask experiments produced an enzyme activity of 6,403 U/ml. The Y16 strain had 9 copies of the recombinant xynHBN188As gene in the genome revealed by qPCR. The enzymatic activity increased to 48,241 U/ml in a 5 L fermentor. Supplement of 15 U/g xylanase enhanced the brightness of paper products by 2% in bleaching experiment, and thereby improved the tensile strength and burst factor by 13% and 6.5%, respectively. XynHBN188As has a great potential in paper industries.
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Affiliation(s)
- Yihong Lu
- Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, The College of Life Sciences, Hubei University, Wuhan 430062, China
| | - Cheng Fang
- Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, The College of Life Sciences, Hubei University, Wuhan 430062, China
| | - Qinhong Wang
- Tianjin institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Yuling Zhou
- Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, The College of Life Sciences, Hubei University, Wuhan 430062, China
| | - Guimin Zhang
- Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, The College of Life Sciences, Hubei University, Wuhan 430062, China
| | - Yanhe Ma
- Tianjin institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
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Xu Y, Wu J, Zheng K, Wu D. A xylanase from Streptomyces sp. FA1: heterologous expression, characterization, and its application in Chinese steamed bread. ACTA ACUST UNITED AC 2016; 43:663-70. [DOI: 10.1007/s10295-016-1736-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 01/10/2016] [Indexed: 10/22/2022]
Abstract
Abstract
Xylanases (EC 3.2.1.8) are hydrolytic enzymes that have found widespread application in the food, feed, and paper-pulp industries. Streptomyces sp. FA1 xynA was expressed as a secreted protein in Pichia pastoris, and the xylanase was applied to the production of Chinese steamed bread for the first time. The optimal pH and the optimal temperature of XynA were 5.5 and 60 °C, respectively. Using beechwood as substrate, the K m and V max were 2.408 mg mL−1 and 299.3 µmol min−1 mg−1, respectively. Under optimal conditions, a 3.6-L bioreactor produced 1374 U mL−1 of XynA activity at a protein concentration of 6.3 g L−1 after 132 h of fermentation. Use of recombinant XynA led to a greater increase in the specific volume of the CSB than could be achieved using commercial xylanase under optimal conditions. This study provides the basis for the application of the enzyme in the baking industry.
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Affiliation(s)
- Yang Xu
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
| | - Jing Wu
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
| | - Kaixuan Zheng
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
| | - Dan Wu
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
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Singh B, Poças-Fonseca MJ, Johri BN, Satyanarayana T. Thermophilic molds: Biology and applications. Crit Rev Microbiol 2016; 42:985-1006. [DOI: 10.3109/1040841x.2015.1122572] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Gomes E, de Souza AR, Orjuela GL, Da Silva R, de Oliveira TB, Rodrigues A. Applications and Benefits of Thermophilic Microorganisms and Their Enzymes for Industrial Biotechnology. Fungal Biol 2016. [DOI: 10.1007/978-3-319-27951-0_21] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Classification, mode of action and production strategy of xylanase and its application for biofuel production from water hyacinth. Int J Biol Macromol 2016; 82:1041-54. [DOI: 10.1016/j.ijbiomac.2015.10.086] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 10/26/2015] [Accepted: 10/27/2015] [Indexed: 01/07/2023]
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15
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Ruller R, Alponti J, Deliberto LA, Zanphorlin LM, Machado CB, Ward RJ. Concommitant adaptation of a GH11 xylanase by directed evolution to create an alkali-tolerant/thermophilic enzyme. Protein Eng Des Sel 2015; 27:255-62. [PMID: 25096197 DOI: 10.1093/protein/gzu027] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
As part of an ongoing directed evolution program, the catalytic performance of the Xylanase A from Bacillus subtilis (XynA), which presents temperature and pH optima of 50°C and 6.0, respectively, has been enhanced to create a highly thermostable and alkali-tolerant enzyme. A library of random XynA mutants generated by error-prone polymerase chain reaction was screened by halo formation on agar containing xylan at pH 8.0. Two mutants showing higher catalytic activity at elevated pH in relation to the wild-type XynA were selected, and pooled with a further 5 XynA variants selected by screening thermostable XynA obtained from a previous directed evolution study for activity at alkaline pH. This pool of variants was used as a template for a further round of error-prone polymerase chain reaction and DNase fragment shuffling, with screening at pH 12.0 at 55°C. Selected mutants were subjected to further DNase shuffling, and a final round of screening at pH 12.0 and 80°C. A XynA variant containing eight mutations was isolated (Q7H/G13R/S22P/S31Y/T44A/I51V/I107L/S179C) that presented a temperature optimum of 80°C, a 3-fold increase in the specific activity compared with the wild-type enzyme at pH 8.0, and a 50% loss of activity (t50) of 60 min at 80°C (wild type <2 min). This directed evolution strategy therefore allows the concomitant adaption of increased thermostability and alkali tolerance of an endo-xylanase.
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Affiliation(s)
- Roberto Ruller
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE) - CNPEM, Campinas, SP, Brazil Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Avenida Bandeirantes 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - Juliana Alponti
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Avenida Bandeirantes 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - Laila Aparecida Deliberto
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Avenida Bandeirantes 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | | | - Carla Botelho Machado
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE) - CNPEM, Campinas, SP, Brazil Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Avenida Bandeirantes 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - Richard John Ward
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE) - CNPEM, Campinas, SP, Brazil Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Avenida Bandeirantes 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil
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Pei H, Guo X, Yang W, Lv J, Chen Y, Cao Y. Directed evolution of a β-1,3-1,4-glucanase fromBacillus subtilisMA139 for improving thermal stability and other characteristics. J Basic Microbiol 2015; 55:869-78. [DOI: 10.1002/jobm.201400664] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 02/22/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Honglei Pei
- National Key Laboratory of Animal Nutrition; China Agricultural University; Beijing PR China
| | - Xiaojing Guo
- National Key Laboratory of Animal Nutrition; China Agricultural University; Beijing PR China
| | - Wenhan Yang
- National Key Laboratory of Animal Nutrition; China Agricultural University; Beijing PR China
| | - Junnan Lv
- National Key Laboratory of Animal Nutrition; China Agricultural University; Beijing PR China
| | - Yiqun Chen
- National Key Laboratory of Animal Nutrition; China Agricultural University; Beijing PR China
| | - Yunhe Cao
- National Key Laboratory of Animal Nutrition; China Agricultural University; Beijing PR China
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17
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Chen CC, Ko TP, Huang JW, Guo RT. Heat- and Alkaline-Stable Xylanases: Application, Protein Structure and Engineering. CHEMBIOENG REVIEWS 2015. [DOI: 10.1002/cben.201400035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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18
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Expression and characterization of hyperthermotolerant xylanases, SyXyn11P and SyXyn11E, in Pichia pastoris and Escherichia coli. Appl Biochem Biotechnol 2014; 172:3476-87. [PMID: 24549804 DOI: 10.1007/s12010-014-0786-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 02/06/2014] [Indexed: 01/01/2023]
Abstract
Both Syxyn11P and Syxyn11E, two codon-optimized genes encoding glycoside hydrolase (GH) family 11 hyperthermotolerant xylanases (designated SyXyn11P and SyXyn11E), were synthesized and inserted into pPIC9K(M) and pET-28a(+) vectors, respectively. The resulting recombinant expression vectors, pPIC9K(M)-Syxyn11P and pET-28a(+)-Syxyn11E, were transformed into Pichia pastoris GS115 and Escherichia coli BL21, respectively. The maximum activities of two recombinant xylanases (reSyXyn11P and reSyXyn11E) expressed in P. pastoris and E. coli reached 30.9 and 17.8 U/ml, respectively. The purified reSyXyn11P and reSyXyn11E displayed the same pH optimum at 6.5 and pH stability at a broad range of 4.5-9.0. The temperature optimum and stability of reSyXyn11P were 85 and 80 °C, higher than those of reSyXyn11E, respectively. Their activities were not significantly affected by metal ions tested and EDTA, but strongly inhibited by Mn(2+) and Ag(+). The K m and V max of reSyXyn11P toward birchwood xylan were 4.3 mg/ml and 694.6 U/mg, whose K m was close to that (4.8 mg/ml), but whose V max was much higher than that (205.6 U/mg) of reSyXyn11E. High-performance liquid chromatography analysis indicated that xylobiose and xylotriose as the major products were excised from insoluble corncob xylan by reSyXyn11P.
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Wang Y, Song J, Wu Y, Odeph M, Liu Z, Howlett BJ, Wang S, Yang P, Yao L, Zhao L, Yang Q. Eplt4 proteinaceous elicitor produced in Pichia pastoris has a protective effect against Cercosporidium sofinum infections of soybean leaves. Appl Biochem Biotechnol 2013; 169:722-37. [PMID: 23271623 DOI: 10.1007/s12010-012-0015-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 12/04/2012] [Indexed: 12/27/2022]
Abstract
A complementary DNA library was constructed from the mycelium of Trichoderma asperellum T4, and a highly expressed gene fragment named EplT4 was found. In order to find a more efficient and cost-effective way of obtaining EplT4, this study attempted to produce EplT4 using a Pichia pastoris expression system. The gene encoding EplT4, with an additional 6-His tag at the C-terminus, was cloned into the yeast vector pPIC9K and expressed in the P. pastoris strain GS115 to obtaining more protein for the further research. Transformants of P. pastoris were selected by PCR analysis, and the ability to secrete high levels of the EplT4 protein was determined. The optimal conditions for induction were assayed using the shake flask method and an enzyme-linked immunosorbent assay. The yield of purified EplT4 was approximately 20 mg/L by nickel affinity chromatography and gel-filtration chromatography. Western blot and matrix-assisted laser desorption/ionization time-of-flight mass spectrometer analysis revealed that the recombinant EplT4 was expressed in both its monomers and dimers. Soybean leaves treated with the EplT4 monomer demonstrated the induction of glucanase, chitinase III-A, cysteine proteinase inhibitor, and peroxidase genes. Early cellular events in plant defense response were also observed after incubation with EplT4. Soybean leaves protected by EplT4 against the pathogen Cercosporidium sofinum (Hara) indicated that EplT4 produced in P. pastoris was biologically active and would be potentially useful for improving food security.
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Affiliation(s)
- Yun Wang
- Department of Life Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
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Kumar A, Singh S. Directed evolution: tailoring biocatalysts for industrial applications. Crit Rev Biotechnol 2012; 33:365-78. [DOI: 10.3109/07388551.2012.716810] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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21
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Amino acid substitutions in the N-terminus, cord and α-helix domains improved the thermostability of a family 11 xylanase XynR8. ACTA ACUST UNITED AC 2012; 39:1279-88. [DOI: 10.1007/s10295-012-1140-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Accepted: 04/21/2012] [Indexed: 01/19/2023]
Abstract
Abstract
The thermostability of xylanase XynR8 from uncultured Neocallimastigales rumen fungal was improved by combining random point mutagenesis with site-directed mutagenesis guided by rational design, and a thermostable variant, XynR8_VNE, was identified. This variant contained three amino acid substitutions, I38V, D137N and G151E, and showed an increased melting temperature of 8.8 °C in comparison with the wild type. At 65 °C the wild-type enzyme lost all of its activity after treatment for 30 min, but XynR8_VNE retained about 65 % activity. To elucidate the mechanism of thermal stabilization, three-dimensional structures were predicted for XynR8 and its variant. We found that the tight packing density and new salt bridge caused by the substitutions may be responsible for the improved thermostability. These three substitutions are located in the N-terminus, cord and α-helix domains, respectively. Hence, the stability of these three domains may be crucial for the thermostability of family 11 xylanases.
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Directed Evolution of Penicillium janczewskii zalesk α-Galactosidase Toward Enhanced Activity and Expression in Pichia pastoris. Appl Biochem Biotechnol 2012; 168:638-50. [DOI: 10.1007/s12010-012-9806-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 07/11/2012] [Indexed: 02/02/2023]
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23
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High-level expression of a hyperthermostable Thermotoga maritima xylanase in Pichia pastoris by codon optimization. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2012.02.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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24
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Improving Phytase Enzyme Activity in a Recombinant phyA Mutant Phytase from Aspergillus niger N25 by Error-Prone PCR. Appl Biochem Biotechnol 2011; 166:549-62. [DOI: 10.1007/s12010-011-9447-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Accepted: 10/26/2011] [Indexed: 01/17/2023]
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25
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Birijlall N, Manimaran A, Kumar KS, Permaul K, Singh S. High level expression of a recombinant xylanase by Pichia pastoris NC38 in a 5 L fermenter and its efficiency in biobleaching of bagasse pulp. BIORESOURCE TECHNOLOGY 2011; 102:9723-9729. [PMID: 21852117 DOI: 10.1016/j.biortech.2011.07.059] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 07/15/2011] [Accepted: 07/16/2011] [Indexed: 05/31/2023]
Abstract
A genetically modified XynA gene from Thermomyces lanuginosus was expressed in Pichia pastoris under the control of GAP promoter. P. pastoris expressed greater levels of xylanase (160 IU ml(-1)) on BMGY medium without zeocin after 56 h. The xylanase production by recombinant P. pastoris was scaled up in a 5L fermenter containing 1% glycerol and the highest xylanase production of 139 IU ml(-1) was observed after 72 h. Further studies carried out in fermenter under controlled pH (5.5) yielded a maximum xylanase production of 177 IU ml(-1) after 72 h. The biobleaching efficacy of crude xylanase was also evaluated on bagasse pulp and a brightness of 47.4% was observed with 50 IU of crude xylanase used per gram of pulp, which was 2.1 points higher in brightness than the untreated samples. Reducing sugars (24.8 mg g(-1)) and UV absorbing lignin-derived compounds values were considerably higher with xylanase treated samples.
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Affiliation(s)
- Natasha Birijlall
- Department of Biotechnology and Food Technology, Faculty of Applied Sciences, Durban University of Technology, P.O. Box 1334, Durban 4000, South Africa
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Enhancing catalytic activity of a hybrid xylanase through single substitution of Leu to Pro near the active site. World J Microbiol Biotechnol 2011; 28:929-35. [PMID: 22805813 DOI: 10.1007/s11274-011-0890-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Accepted: 09/10/2011] [Indexed: 12/21/2022]
Abstract
A modified error-prone PCR and high-throughout screening system based on 96-well plate were employed to improve catalytic activity of a hybrid xylanase (ATx). The mutant (FSI-A124) with enhanced activity was further heterologously expressed in Pichia pastoris under the control of GAP promoter. The recombinant xylanase driven by the Saccharomyces cerevisiae α-mating factor was secreted into culture medium. After growth in YPD medium for 96 h, xylanase activity in the culture supernatant reached 66.1 U ml(-1), which was 2.92 times as that of its parent. 6 × His-tagged purification increased the specific activity to 1557.61 U mg(-1). The optimum temperature and pH of recombinant xylanase were 55°C and 6.0, respectively. A single amino acid substitution (L49P) was observed within sequence of the mutant. Insight of the three dimensional structure revealed that proline possibly produced weaker hydrogen bond, van der Waals force and hydrophobic interaction with other residues nearby than leucine, especially for V174, contributing to the flexibility of catalytic residue E177. In this study, FSI-A124 exhibited higher xylanase activity but poorer thermostability than its parent, indicating that activity and stability might be negatively correlated.
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Hokanson CA, Cappuccilli G, Odineca T, Bozic M, Behnke CA, Mendez M, Coleman WJ, Crea R. Engineering highly thermostable xylanase variants using an enhanced combinatorial library method. Protein Eng Des Sel 2011; 24:597-605. [DOI: 10.1093/protein/gzr028] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Production of recombinant proteins and metabolites in yeasts. Appl Microbiol Biotechnol 2010; 89:939-48. [DOI: 10.1007/s00253-010-3019-z] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2010] [Revised: 11/12/2010] [Accepted: 11/15/2010] [Indexed: 12/27/2022]
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29
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Hua C, Yan Q, Jiang Z, Li Y, Katrolia P. High-level expression of a specific β-1,3-1,4-glucanase from the thermophilic fungus Paecilomyces thermophila in Pichia pastoris. Appl Microbiol Biotechnol 2010; 88:509-18. [DOI: 10.1007/s00253-010-2759-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2010] [Revised: 06/25/2010] [Accepted: 06/26/2010] [Indexed: 12/24/2022]
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