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Alagöz D, Varan NE, Yildirim D, Fernandéz-Lafuente R. Optimization of the immobilization of xylanase from Thermomyces lanuginosus to produce xylooligosaccharides in a batch type reactor. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Liu C, Zhang W, Li Y, Pan K, OuYang K, Song X, Xiong X, Zang Y, Wang L, Qu M, Zhao X. Characterization of yeast cell surface displayed Lentinula edodes xylanase and its effects on the hydrolysis of wheat. Int J Biol Macromol 2022; 199:341-347. [PMID: 35026222 DOI: 10.1016/j.ijbiomac.2021.12.178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 12/20/2021] [Accepted: 12/28/2021] [Indexed: 12/11/2022]
Abstract
The current study displayed a xylanase from Lentinula edodes on the surface of Pichia pastoris (sdLeXyn) and investigated its properties and effects on the wheat hydrolysis. Fluorescence microscope results showed that sdLeXyn was successfully anchored and displayed on the surface of P. pastoris X-33 cells. The highest activity of sdLeXyn was obtained at pH 3.0 and 50 °C. The sdLeXyn exhibited anti-high temperature property and showed broad temperature adaptability (>55% of the highest activity at 20-80 °C). The sdLeXyn was very stable at room temperature and could remain functionally stable at 50 °C for 3 h. The Km value was greater in sdLeXyn than that in free recombinant L. edodes xylanase. The sdLeXyn exhibited well resistance to Mn2+, Zn2+, Ca2+, Na+, Cu2+, Mg2+, K+, Ni2+ (1 mM and 5 mM) except Cu2+, which reduced the sdLeXyn activity by 54.5% at 5 mM dosage. The activity of sdLeXyn was increased by 42.6% by 5 mM Mn2+, 5 mM DTT, Trition X-100, and Tween 20 did not affect the activity of sdLeXyn, but SDS and EDTA slightly reduced it by 12.8% and 14.6%, respectively. The sdLeXyn could resist the degradation of pepsin, efficiently hydrolyzed wheat and reduced the viscosity of wheat hydrolysate. Current data indicate that the sdLeXyn has a potential as a feed additive to improve the utilization of wheat in poultry production.
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Affiliation(s)
- Chanjuan Liu
- Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China; College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China
| | - Wenjing Zhang
- Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China; College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China
| | - Yanjiao Li
- Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China; College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China
| | - Ke Pan
- Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China; College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China
| | - Kehui OuYang
- Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China; College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China
| | - Xiaozhen Song
- Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China; College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China
| | - Xiaowen Xiong
- Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China; College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China
| | - Yitian Zang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China
| | - Lei Wang
- Shandong Institute for Food and Drug Control, Jinan, Shandong 250101, China
| | - Mingren Qu
- Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China; College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China
| | - Xianghui Zhao
- Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China; College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China.
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Tan WY, Khoo BY, Chew AL. Optimization of Physical Parameters for the Enhanced Expression of Recombinant Chemokine Receptors D6 and DARC in Pichia pastoris. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821100112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Della Torre CL, Silva-Lucca RA, Ferreira RDS, Andrade Luz L, Oliva MLV, Kadowaki MK. Correlation of the conformational structure and catalytic activity of the highly thermostable xylanase of Thermomyces lanuginosus PC7S1T. BIOCATAL BIOTRANSFOR 2021. [DOI: 10.1080/10242422.2021.1950696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Carla Lieko Della Torre
- Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Cascavel, Brazil
| | | | | | - Luciana Andrade Luz
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Marina Kimiko Kadowaki
- Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Cascavel, Brazil
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Seemakram W, Boonrung S, Aimi T, Ekprasert J, Lumyong S, Boonlue S. Purification, characterization and partial amino acid sequences of thermo-alkali-stable and mercury ion-tolerant xylanase from Thermomyces dupontii KKU-CLD-E2-3. Sci Rep 2020; 10:21663. [PMID: 33303944 PMCID: PMC7730141 DOI: 10.1038/s41598-020-78670-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 11/23/2020] [Indexed: 01/23/2023] Open
Abstract
We investigated the properties of the low molecular weight thermo-alkali-stable and mercury ion-tolerant xylanase production from Thermomyces dupontii KKU-CLD-E2-3. The xylanase was purified to homogeneity by ammonium sulfate, Sephadex G-100 and DEAE-cellulose column chromatography which resulted 27.92-fold purification specific activity of 56.19 U/mg protein and a recovery yield of 2.01%. The purified xylanase showed a molecular weight of 25 kDa by SDS-PAGE and the partial peptide sequence showed maximum sequence homology to the endo-1,4-β-xylanase. The optimum temperature and pH for its activity were 80 °C and pH 9.0, respectively. Furthermore, the purified xylanase can maintain more than 75% of the original activity in pH range of 7.0-10.0 after incubation at 4 °C for 24 h, and can still maintain more than 70% of original activity after incubating at 70 °C for 90 min. Our purified xylanase was activated by Cu2+ and Hg2+ up to 277% and 235% of initial activity, respectively but inhibited by Co2+, Ag+ and SDS at a concentration of 5 mM. The Km and Vmax values of beechwood xylan were 3.38 mg/mL and 625 µmol/min/mg, respectively. Furthermore, our xylanase had activity specifically to xylan-containing substrates and hydrolyzed beechwood xylan, and the end products mainly were xylotetraose and xylobiose. The results suggested that our purified xylanase has potential to use for pulp bleaching in the pulp and paper industry.
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Affiliation(s)
- Wasan Seemakram
- Graduate School, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Santhaya Boonrung
- Biology Program, Faculty of Science, Buriram Rajabhat University, Buriram, 31000, Thailand
| | - Tadanori Aimi
- Department of Biochemistry and Biotechnology, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Jindarat Ekprasert
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Saisamorn Lumyong
- Department of Biology, Faculty of Science, Chiang Mai Univertity, Chiang Mai, 50200, Thailand
- Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai, 50200, Thailand
- Academy of Science, The Royal Society of Thailand, Bangkok, 10300, Thailand
| | - Sophon Boonlue
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.
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Kumar V, Shukla P. Extracellular xylanase production from T. lanuginosus VAPS24 at pilot scale and thermostability enhancement by immobilization. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.05.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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High level expression of a recombinant xylanase by Pichia pastoris cultured in a bioreactor with methanol as the sole carbon source: Purification and biochemical characterization of the enzyme. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2016.04.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Xu X, Liu MQ, Huo WK, Dai XJ. Obtaining a mutant of Bacillus amyloliquefaciens xylanase A with improved catalytic activity by directed evolution. Enzyme Microb Technol 2016; 86:59-66. [DOI: 10.1016/j.enzmictec.2016.02.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 02/03/2016] [Accepted: 02/07/2016] [Indexed: 12/29/2022]
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Identification of three important amino acid residues of xylanase AfxynA from Aspergillus fumigatus for enzyme activity and formation of xylobiose as the major product. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.01.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Li XJ, Zheng RC, Wu ZM, Ding X, Zheng YG. Thermophilic esterase from Thermomyces lanuginosus: Molecular cloning, functional expression and biochemical characterization. Protein Expr Purif 2014; 101:1-7. [DOI: 10.1016/j.pep.2014.05.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Revised: 05/07/2014] [Accepted: 05/12/2014] [Indexed: 12/26/2022]
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Zhang HM, Wang JQ, Wu MC, Gao SJ, Li JF, Yang YJ. Optimized expression, purification and characterization of a family 11 xylanase (AuXyn11A) from Aspergillus usamii E001 in Pichia pastoris. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:699-706. [PMID: 23881861 DOI: 10.1002/jsfa.6309] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 06/30/2013] [Accepted: 07/23/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Xylanases have attracted much attention because of their potential applications. Unfortunately, the commercialization of xylanases is limited by their low catalytic activities. The aim of this study was to improve the activity of a xylanase by optimization of the expression conditions and to investigate its characterization. RESULTS The activity of recombinant AuXyn11A (reAuXyn11A), a family 11 xylanase from Aspergillus usamii E001 expressed in Pichia pastoris GS115, reached 912.6 U mL⁻¹ under the optimized conditions, which was 2.14 times as high as that expressed using the standard protocol. After the endogenous 18-aa propeptide had been processed in P. pastoris, reAuXyn11A (188-aa mature peptide) was secreted and purified with a specific activity of 22 714 U mg⁻¹. It displayed maximum activity at pH 5 and 50 °C and was stable in the pH range 4-8 and at a temperature of 45 °C or below. Its activity was not significantly affected by most metal ions and EDTA. Xylooligosaccharides ranging from xylobiose (X2) to xylohexaose (X6) were produced from insoluble corncob xylan by reAuXyn11A. CONCLUSION Its high specific activity and good enzymatic properties suggest that reAuXyn11A is a potential candidate for applications in industrial processes.
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Affiliation(s)
- Hui-Min Zhang
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, Jiangnan University, Wuxi, 214122, China
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Purification and Characterization of the Xylanase Produced by Jonesia denitrificans BN-13. Appl Biochem Biotechnol 2014; 172:2694-705. [DOI: 10.1007/s12010-013-0709-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 12/25/2013] [Indexed: 10/25/2022]
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Cloning, over-expression and characterization of a thermo-tolerant xylanase from Thermotoga thermarum. Biotechnol Lett 2013; 36:587-93. [PMID: 24170174 DOI: 10.1007/s10529-013-1392-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 10/17/2013] [Indexed: 10/26/2022]
Abstract
The xyn10B gene, encoding the endo-1,4-β-xylanase Xyn10B from Thermotoga thermarum, was cloned and expressed in Escherichia coli. The ORF of the xyn10B was 1,095 bp and encoded to mature peptide of 344 amino acids with a calculated MW of 40,531 Da. The recombinant xylanase was optimally active at 80 °C, pH 6.0 and retained approx. 60 % of its activity after 2 h at 75 °C. Apparent K m , k cat and k cat /K m values of the xylanase for beechwood xylan were 1.8 mg ml(-1), 520 s(-1) and 289 ml mg(-1) s(-1), respectively. The end products of the hydrolysis of beechwood xylan were mainly oligosaccharides but without xylose after 2 h hydrolysis.
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Characterization, cloning and functional expression of novel xylanase from Thermomyces lanuginosus SS-8 isolated from self-heating plant wreckage material. World J Microbiol Biotechnol 2013; 29:2407-15. [PMID: 23793944 DOI: 10.1007/s11274-013-1409-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 06/17/2013] [Indexed: 10/26/2022]
Abstract
Extracellular cellulase free xylanase from Thermomyces lanuginosus sp. SS-8, isolated from self heating plant wreckage material was identified as β-1,4-endo-xylanase precursor, a monomer of 21.3 kDa with no carbohydrate residue. This xylanase retained 80 % activity at 60 °C for 96 h, was active at a wide pH range of 3-11 and uniquely hydrolyzed xylan to xylose without production of xylo-oligosaccharides. Gene xynSS8 encoding xylanase from T. lanuginosus SS-8 was cloned and functionally expressed in Escherichia coli XL1 Blue using pTZ57R/T plasmid and xynSS8/pQE-9 expression vector construct respectively. Gene xynSS8 was of 777 bp and deduced amino acid sequence was a mature xylanase of 258 amino acids. XynSS8 has extra 33 amino acids compared to its nearest homolog and was thermo-alkali tolerant as that of native protein. The xylanase could degrade pulp and release substantial chromophoric materials and lignin derived compounds indicating its effective utility in pulp bleaching. Novel characteristics of the enzyme may contribute to its wide industrial usage. This is first report of cloning and functional expression of the novel xylanase from T. lanuginosus SS-8.
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Shi H, Zhang Y, Li X, Huang Y, Wang L, Wang Y, Ding H, Wang F. A novel highly thermostable xylanase stimulated by Ca2+ from Thermotoga thermarum: cloning, expression and characterization. BIOTECHNOLOGY FOR BIOFUELS 2013; 6:26. [PMID: 23418789 PMCID: PMC3598563 DOI: 10.1186/1754-6834-6-26] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Accepted: 02/13/2013] [Indexed: 05/10/2023]
Abstract
BACKGROUND Xylanase is an important component of hemicellulase enzyme system. Since it plays an important role in the hydrolysis of hemicellulose into xylooligosaccharides (XOs), high thermostable xylanase has been the focus of much recent attention as powerful enzyme as well as in the field of biomass utilization. RESULTS A xylanase gene (xyn10A) with 3,474 bp was cloned from the extremely thermophilic bacterium Thermotoga thermarum that encodes a protein containing 1,158 amino acid residues. Based on amino acid sequence homology, hydrophobic cluster and three dimensional structure analyses, it was attested that the xylanase belongs to the glycoside hydrolase (GH) families 10 with five carbohydrate binding domains. When the xylanase gene was cloned and expressed in Escherichia coli BL21 (DE3), the specific enzyme activity of xylanase produced by the recombinant strain was up to 145.8 U mg-1. The xylanase was optimally active at 95°C, pH 7.0. In addition, it exhibited high thermostability over broad range of pH 4.0-8.5 and temperature 55-90°C upon the addition of 5 mM Ca2+. Confirmed by Ion Chromatography System (ICS) analysis, the end products of the hydrolysis of beechwood xylan were xylose, xylobiose, xylotriose, xylotetraose, xylopentaose and xylohexaose. CONCLUSIONS The xylanase from T. thermarum is one of the hyperthermophilic xylanases that exhibits high thermostability, and thus, is a suitable candidate for generating XOs from cellulosic materials such as agricultural and forestry residues for the uses as prebiotics and precursors for further preparation of furfural and other chemicals.
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Affiliation(s)
- Hao Shi
- College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, 213337, Nanjing, China
| | - Yu Zhang
- College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, 213337, Nanjing, China
| | - Xun Li
- College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, 213337, Nanjing, China
| | - Yingjuan Huang
- College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, 213337, Nanjing, China
| | - Liangliang Wang
- College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, 213337, Nanjing, China
| | - Ye Wang
- College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, 213337, Nanjing, China
| | - Huaihai Ding
- College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, 213337, Nanjing, China
| | - Fei Wang
- College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, 213337, Nanjing, China
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Wang JQ, Yin X, Wu MC, Zhang HM, Gao SJ, Wei JT, Tang CD, Li JF. Expression of a family 10 xylanase gene from Aspergillus usamii E001 in Pichia pastoris and characterization of the recombinant enzyme. J Ind Microbiol Biotechnol 2012; 40:75-83. [PMID: 23053346 DOI: 10.1007/s10295-012-1201-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 09/18/2012] [Indexed: 12/29/2022]
Abstract
A cDNA gene (Auxyn10A), which encodes a mesophilic family 10 xylanase from Aspergillus usamii E001 (abbreviated to AuXyn10A), was amplified and inserted into the XhoI and NotI sites of pPIC9K(M) vector constructed from a parent pPIC9K. The recombinant expression vector, designated pPIC9K(M)-Auxyn10A, was transformed into Pichia pastoris GS115. All P. pastoris transformants were spread on a MD plate, and then inoculated on geneticin G418-containing YPD plates for screening multiple copies of integration of the Auxyn10A. One transformant expressing the highest recombinant AuXyn10A (reAuXyn10A) activity of 368.6 U/ml, numbered as P. pastoris GSX10A4-14, was selected by flask expression test. SDS-PAGE assay demonstrated that the reAuXyn10A was extracellularly expressed with an apparent M.W. of 39.8 kDa. The purified reAuXyn10A displayed the maximum activity at pH 5.5 and 50 °C. It was highly stable at a broad pH range of 4.5-8.5, and at a temperature of 45 °C. Its activity was not significantly affected by EDTA and several metal ions except Mn(2+), which caused a strong inhibition. The K(m) and V(max), towards birchwood xylan at pH 5.5 and 50 °C, were 2.25 mg/ml and 6,267 U/mg, respectively. TLC analysis verified that the AuXyn10A is an endo-β-1,4-D-xylanase, which yielded a major product of xylotriose and a small amount of xylose, xylotetraose, and xylopentose from birchwood xylan, but no xylobiose.
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Affiliation(s)
- Jun-Qing Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China
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High-level expression of a xylanase gene from the thermophilic fungus Paecilomyces thermophila in Pichia pastoris. Biotechnol Lett 2012; 34:2043-8. [DOI: 10.1007/s10529-012-0995-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Accepted: 06/22/2012] [Indexed: 10/28/2022]
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Mellitzer A, Weis R, Glieder A, Flicker K. Expression of lignocellulolytic enzymes in Pichia pastoris. Microb Cell Fact 2012; 11:61. [PMID: 22583625 PMCID: PMC3503753 DOI: 10.1186/1475-2859-11-61] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 04/21/2012] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Sustainable utilization of plant biomass as renewable source for fuels and chemical building blocks requires a complex mixture of diverse enzymes, including hydrolases which comprise the largest class of lignocellulolytic enzymes. These enzymes need to be available in large amounts at a low price to allow sustainable and economic biotechnological processes.Over the past years Pichia pastoris has become an attractive host for the cost-efficient production and engineering of heterologous (eukaryotic) proteins due to several advantages. RESULTS In this paper codon optimized genes and synthetic alcohol oxidase 1 promoter variants were used to generate Pichia pastoris strains which individually expressed cellobiohydrolase 1, cellobiohydrolase 2 and beta-mannanase from Trichoderma reesei and xylanase A from Thermomyces lanuginosus. For three of these enzymes we could develop strains capable of secreting gram quantities of enzyme per liter in fed-batch cultivations. Additionally, we compared our achieved yields of secreted enzymes and the corresponding activities to literature data. CONCLUSION In our experiments we could clearly show the importance of gene optimization and strain characterization for successfully improving secretion levels. We also present a basic guideline how to correctly interpret the interplay of promoter strength and gene dosage for a successful improvement of the secretory production of lignocellulolytic enzymes in Pichia pastoris.
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Affiliation(s)
- Andrea Mellitzer
- Institute of Molecular Biotechnology, Graz University of Technology, Graz, Austria
| | | | - Anton Glieder
- ACIB GmbH, Austrian Centre of Industrial Biotechnology, Graz, Austria
| | - Karlheinz Flicker
- ACIB GmbH, Austrian Centre of Industrial Biotechnology, Graz, Austria
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Shrivastava S, Shukla P, Mukhopadhyay K. Purification and preliminary characterization of a xylanase from Thermomyces lanuginosus strain SS-8. 3 Biotech 2011; 1:255-259. [PMID: 22558544 PMCID: PMC3339585 DOI: 10.1007/s13205-011-0032-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Accepted: 10/08/2011] [Indexed: 11/30/2022] Open
Abstract
Thermomyces lanuginosus SS-8 was isolated from soil samples that had been collected from near self-heating plant material and its extracellular cellulase-free xylanase purified approximately 160-fold using ion exchange chromatography and continuous elution electrophoresis. This xylanase was thermoactive (optimum temperature 60 °C) at pH 6.0 and had a molecular weight of 23.79 kDa as indicated by SDS-PAGE electrophoresis. The xylanase rapidly hydrolyzed xylan directly to xylose without the production of intermediary xylo-oligosaccharides within 15 min of incubation under optimum conditions. This trait of rapidly degrading xylan to xylose as a sole end-product could have biotechnological potential in degradation of agro-wastes for bioethanol manufacturing industry.
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Affiliation(s)
- Smriti Shrivastava
- Enzyme Technology Laboratory, Department of Biotechnology, Birla Institute of Technology (Deemed University), Mesra, Ranchi, Jharkhand India
| | - Pratyoosh Shukla
- Enzyme Technology Laboratory, Department of Biotechnology, Birla Institute of Technology (Deemed University), Mesra, Ranchi, Jharkhand India
| | - Kunal Mukhopadhyay
- Enzyme Technology Laboratory, Department of Biotechnology, Birla Institute of Technology (Deemed University), Mesra, Ranchi, Jharkhand India
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Khucharoenphaisan K, Sinma K. Beta-xylanase from Thermomyces lanuginosus and its biobleaching application. Pak J Biol Sci 2011; 13:513-26. [PMID: 21848065 DOI: 10.3923/pjbs.2010.513.526] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Thermomyces lanuginosus is thermophilic fungus in which was isolated from widespread material. A high number of this fungus was found in composts especially mushroom composts. This fungus has been reported to produce a high level xylanase when cultivated in the medium containing xylan and corn cob as a carbon source. Various strains of T. lanuginosus produced a single xylanase with molecular masses in range of 22.0 to 29.0 kDa. Pure beta-xylanase obtained from various strains of this fungus exhibited highly stability at high temperature and wide pH range. The optimal temperature and optimal pH of pure beta-xylanase from various strains of T. lanuginosus have been reported in range of 60-75 degrees C and pH 6.0-7.0, respectively. The great thermal stability was resulting from the present of hydrophilic amino acid on beta sheet of the surface of xylanase structure. Moreover, the relatedness between high and low xylanase producing strains can be distinguish by random amplification of polymorphic DNA (RAPD). Based on nucleotide sequences and T. lanuginosus xylanase gene has been classified to be a member of family 11 (formerly known as cellulase family G) glycosyl hydrolases. This enzyme was endo-type xylanase having main product are xylose and xylobiose. The expression of xylanase gene from T. lanuginosus was achieved in Escherichia coli and methylotrophic yeast Pichia pastoris. The ability of T. lanuginosus in which produced large amount of high thermos stable xylanase has made this fungus to be a source of xylanase production for biobleaching in pulp and paper process.
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Affiliation(s)
- K Khucharoenphaisan
- Faculty of Science and Technology, Phranakhon Rajabhat University, Bangkok 10220, Thailand
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Cloning and optimized expression of a GH-11 xylanase from Fusarium oxysporum in Pichia pastoris. N Biotechnol 2011; 28:369-74. [PMID: 21402188 DOI: 10.1016/j.nbt.2011.03.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 02/16/2011] [Accepted: 03/02/2011] [Indexed: 11/22/2022]
Abstract
The endo-1,4-β-xylanase gene xyn11a from Fusarium oxysporum, member of the fungal glycosyl hydrolase (GH) family 11, was cloned and expressed in Pichia pastoris. The mature xylanase gene, which generates after the excision of one intron and the secreting signal peptide, was placed under the control of an alcohol oxidase promoter (AOX1) in the plasmid pPICZαC. The final construction was integrated into the genome of the methylotrophic yeast P. pastoris X33 and the ability to produce xylanase activity was evaluated in flask cultures. Recombinant P. pastoris efficiently secreted xylanase into the medium and produced high level of enzymatic activity (110 U/ml) after 216 hours of growth, under methanol induction. To achieve higher enzyme production, the influence of initial pH, methanol concentration, agitation and flask design was evaluated. Under optimum culture conditions, production of the recombinant xylanase increased by 50%, reaching a final yield of 170 U/ml, underpinning aeration as the most important factor in improving enzyme production.
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Optimization of xylanase production by Thermomyces lanuginosus in solid state fermentation. Biosci Biotechnol Biochem 2009; 73:2640-4. [PMID: 19966485 DOI: 10.1271/bbb.90493] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Extracellular xylanase production by the thermophilic fungus Thermomyces lanuginosus 195 in solid state fermentation (SSF) was found to be significantly affected by fermentation temperature, duration, and inoculum volume (p < or = 0.001). Optimization of these parameters corresponded to a 21.7% increase in xylanase yield. Maximum activity (2,335 U/g of wheat bran) was obtained when 10 g of wheat bran was inoculated with 10 ml of liquid culture and cultivated at 45 degrees C for 40 h. The influence of supplemental carbon and nitrogen sources (3% w/v) on xylanase production was also assessed. Wheat bran, supplemented with glucose and cellulose, facilitated 10% and 7% increases in relative activity respectively. Ammonium based salts, nitrates, and a number of organic nitrogen sources served only to reduce xylanase production (p < or = 0.005) significantly. The enhanced xylanase titers achieved in the present study emphasize the need for optimizing growth conditions for maximum enzyme production in SSF.
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