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Co-expression of Pseudomonas alcaligenes lipase and its specific foldase in Pichia pastoris by a dual expression cassette strategy. Protein Expr Purif 2020; 175:105721. [PMID: 32763465 DOI: 10.1016/j.pep.2020.105721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/29/2020] [Accepted: 07/29/2020] [Indexed: 11/22/2022]
Abstract
Lipomax is a commercialized foldase-dependent Pseudomonas lipase that was previously expressed only in Pseudomonas strains. Here, using Pichia pastoris as the host, we report a new co-expression method that leads to the successful production of Lipomax. The active Lipomax is extracellularly co-expressed with its cognate foldase (LIM); and the purified enzyme mix has the optimum pH at pH 8.0 and an optimal temperature around 40 °C. N-glycosylation was observed for Pichia produced Lipomax, and its reduction was shown to increase the lipolytic activity. With different p-nitrophenyl esters as the substrates, the substrate profiling analyses further indicate that Lipomax prefers esters with middle-long chain fatty acids, showing the highest specific activity to p-nitrophenyl caprylate (C8). The extracellular co-expression of Lipomax and LIM in Pichia will not only increase our ability to investigate additional eukaryotic hosts for lipase expression, but also be of considerable value in analyzing other foldase-dependent lipases.
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2
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Moayad W, Zha G, Yan Y. Metalophilic lipase from Ralstonia solanacearum: Gene cloning, expression, and biochemical characterization. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2017.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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3
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Freitas RCD, Odisi EJ, Kato C, da Silva MAC, Lima AODS. Draft Genome Sequence of the Deep-Sea Bacterium Moritella sp. JT01 and Identification of Biotechnologically Relevant Genes. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2017; 19:480-487. [PMID: 28733934 DOI: 10.1007/s10126-017-9767-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 06/19/2017] [Indexed: 06/07/2023]
Abstract
Deep-sea bacteria can produce various biotechnologically relevant enzymes due to their adaptations to high pressures and low temperatures. To identify such enzymes, we have sequenced the genome of the polycaprolactone-degrading bacterium Moritella sp. JT01, isolated from sediment samples from Japan Trench (6957 m depth), using a Illumina HiSeq2000 sequencer (12.1 million paired-end reads) and CLC Genomics Workbench (version 6.5.1) for the assembly, resulting in a 4.83-Mb genome (42 scaffolds). The genome was annotated using Rapid Annotation using Subsystem Technology (RAST), Protein Homology/analogY Recognition Engine V 2.0 (PHYRE2), and BLAST2Go, revealing 4439 protein coding sequences and 101 RNAs. Gene products with industrial relevance, such as lipases (three) and esterases (four), were identified and are related to bacterium's ability to degrade polycaprolactone. The annotation revealed proteins related to deep-sea survival, such as cold-shock proteins (six) and desaturases (three). The presence of secondary metabolite biosynthetic gene clusters suggests that this bacterium could produce nonribosomal peptides, polyunsaturated fatty acids, and bacteriocins. To demonstrate the potential of this genome, a lipase was cloned an introduced into Escherichia coli. The lipase was purified and characterized, showing activity over a wide temperature range (over 50% at 20-60 °C) and pH range (over 80% at pH 6.3 to 9). This enzyme has tolerance to the surfactant action of sodium dodecyl sulfate and shows 30% increased activity when subjected to a working pressure of 200 MPa. The genomic characterization of Moritella sp. JT01 reveals traits associated with survival in the deep-sea and their potential uses in biotechnology, as exemplified by the characterized lipase.
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Affiliation(s)
- Robert Cardoso de Freitas
- Technological Science Center of Earth and Sea, UNIVALI, R Uruguai 458, Itajai, SC, 88302-202, Brazil
| | - Estácio Jussie Odisi
- Technological Science Center of Earth and Sea, UNIVALI, R Uruguai 458, Itajai, SC, 88302-202, Brazil
| | - Chiaki Kato
- Department of Marine Biodiversity Research, JAMSTEC, Natsushima-cho 2-15, Yokosuka, Kanagawa, 237-0061, Japan
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Mok PS, Ch’ng DHE, Ong SP, Numata K, Sudesh K. Characterization of the depolymerizing activity of commercial lipases and detection of lipase-like activities in animal organ extracts using poly(3-hydroxybutyrate-co-4-hydroxybutyrate) thin film. AMB Express 2016; 6:97. [PMID: 27730572 PMCID: PMC5059232 DOI: 10.1186/s13568-016-0230-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 08/12/2016] [Indexed: 11/10/2022] Open
Abstract
Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-co-4HB)] is one of the polyhydroxyalkanoate (PHA) copolymers which can be degraded by lipases. In this study, the depolymerizing activity of different known commercial lipases was investigated via microassay using P(3HB-co-92 mol % 4HB) thin film as substrate. Non-enzymatic hydrolysis occurred under conditions in which buffers with pH 12 and 13 were added or temperature of 50 °C and above. Different concentrations of metal ions or detergents alone did not cause the film hydrolysis. The depolymerizing activity of lipases on P(3HB-co-4HB) was optimum in the pH range of 6–8 and at temperatures between 30 and 50 °C. Addition of metal ions and detergents in different concentrations was also shown to cause variable effects on the depolymerizing activity of commercial lipases. Pancreatic extracts from both mouse and chicken showed similar depolymerizing activity as the commercial lipases on the P(3HB-co-4HB) film. The presence of lipolytic enzymes in the organ extracts was confirmed with another lipase activity assay, p-nitrophenyl laurate assay. For the first time this has produced a direct evidence for the involvement of lipase-like enzymes from animal in the degradation of this PHA. Lipase is most likely the enzyme from pancreas that was involved in the degradation.
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Wang L, Li J, Zhao X, Qian C, Wei G, Zhu B, Liu C. Expression and characterization of a lipase-related protein in the malpighian tubules of the Chinese oak silkworm, Antheraea pernyi. BULLETIN OF ENTOMOLOGICAL RESEARCH 2016; 106:615-623. [PMID: 27297450 DOI: 10.1017/s0007485316000365] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Lipases are ubiquitous enzymes in nature, which play a crucial role in fat metabolism by catalyzing the hydrolysis of triacylglycerol to free fatty acids and glycerol. However, reports concerning insect lipase are rare. In this study, we studied the expression and activity of a lipase-related protein from Antheraea pernyi (ApLRP). Recombinant ApLRP was expressed in Escherichia coli cells and used to raise rabbit anti-ApLRP polyclonal antibodies. ApLRP mRNA and protein expression were abundant in the midgut and malpighian tubules, respectively. After challenge with four different microorganisms (E. coli, Beauveria bassiana, Micrococcus luteus and nuclear polyhedrosis virus), the expression levels of ApLRP mRNA in midgut were inducted significantly compared with the control. The different pathogens induced different ApLRP gene expression patterns. The optimum temperature and pH for the enzyme's activity were 35°C and 7.0, respectively. ApLRP activity was stimulated in the presence of Mg2+, Na+, Ca2+ and b-mercaptoethanol; while Zn2+, Cu2+ and Fe3+ inhibited its activity. Detergents such as SDS, glycerol and Tween-20 increased the lipase activity by 20-30%. Our results indicated that ApLRP might play an important role in the innate immunity of insects.
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Affiliation(s)
- L Wang
- College of Life Science, Anhui Agricultural University,Hefei 230036,China
| | - J Li
- College of Life Science, Anhui Agricultural University,Hefei 230036,China
| | - X Zhao
- College of Life Science, Anhui Agricultural University,Hefei 230036,China
| | - C Qian
- College of Life Science, Anhui Agricultural University,Hefei 230036,China
| | - G Wei
- College of Life Science, Anhui Agricultural University,Hefei 230036,China
| | - B Zhu
- College of Life Science, Anhui Agricultural University,Hefei 230036,China
| | - C Liu
- College of Life Science, Anhui Agricultural University,Hefei 230036,China
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Karimi E, Karkhane AA, Yakhchali B, Shamsara M, Aminzadeh S, Torktaz I, Hosseini M, Safari Z. Study of the effect of F17A mutation on characteristics ofBacillus thermocatenulatuslipase expressed inPichia pastorisusingin silicoand experimental methods. Biotechnol Appl Biochem 2014; 61:264-73. [DOI: 10.1002/bab.1164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Accepted: 08/31/2013] [Indexed: 12/20/2022]
Affiliation(s)
- Esmat Karimi
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
| | - Ali Asghar Karkhane
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
| | - Bagher Yakhchali
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
| | - Mehdi Shamsara
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
| | - Saeed Aminzadeh
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
| | - Ibrahim Torktaz
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
| | - Mostafa Hosseini
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
| | - Zahra Safari
- Department of Industrial and Environmental Biotechnology; National Institute of Genetic Engineering and Biotechnology (NIGEB); Tehran Iran
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Hernández-García S, García-García MI, García-Carmona F. Purification, Immobilization and Characterization of Lipase Isoenzyme from <i>Aspergillus niger</i> with C8 Magnetic Particles. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/abb.2014.57075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Hwang HT, Qi F, Yuan C, Zhao X, Ramkrishna D, Liu D, Varma A. Lipase-catalyzed process for biodiesel production: Protein engineering and lipase production. Biotechnol Bioeng 2013; 111:639-53. [PMID: 24284881 DOI: 10.1002/bit.25162] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 10/16/2013] [Accepted: 11/20/2013] [Indexed: 01/05/2023]
Affiliation(s)
- Hyun Tae Hwang
- School of Chemical Engineering; Purdue University; 480 Stadium Mall Drive West Lafayette Indiana 47907
| | - Feng Qi
- Department of Chemical Engineering; Institute of Applied Chemistry; Tsinghua University; Beijing China
| | - Chongli Yuan
- School of Chemical Engineering; Purdue University; 480 Stadium Mall Drive West Lafayette Indiana 47907
| | - Xuebing Zhao
- Department of Chemical Engineering; Institute of Applied Chemistry; Tsinghua University; Beijing China
| | - Doraiswami Ramkrishna
- School of Chemical Engineering; Purdue University; 480 Stadium Mall Drive West Lafayette Indiana 47907
| | - Dehua Liu
- Department of Chemical Engineering; Institute of Applied Chemistry; Tsinghua University; Beijing China
| | - Arvind Varma
- School of Chemical Engineering; Purdue University; 480 Stadium Mall Drive West Lafayette Indiana 47907
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Differential properties of native and tagged or untagged recombinant glucose isomerases of Streptomyces sp. SK and possible implication of the glycosylation. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.05.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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10
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Shao H, Xu L, Yan Y. Thermostable lipases from extremely radioresistant bacteriumDeinococcus radiodurans: Cloning, expression, and biochemical characterization. J Basic Microbiol 2013; 54:984-95. [DOI: 10.1002/jobm.201300434] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 07/21/2013] [Indexed: 11/05/2022]
Affiliation(s)
- Hua Shao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology; Huazhong University of Science and Technology; Wuhan P. R. China
| | - Li Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology; Huazhong University of Science and Technology; Wuhan P. R. China
| | - Yunjun Yan
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology; Huazhong University of Science and Technology; Wuhan P. R. China
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11
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Characterization of an extracellular thermophilic alkaline esterase produced by Bacillus subtilis DR8806. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2012.08.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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12
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Wu X, You P, Su E, Xu J, Gao B, Wei D. In vivo functional expression of a screened P. aeruginosa chaperone-dependent lipase in E. coli. BMC Biotechnol 2012; 12:58. [PMID: 22950599 PMCID: PMC3497882 DOI: 10.1186/1472-6750-12-58] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 09/03/2012] [Indexed: 11/28/2022] Open
Abstract
Background Microbial lipases particularly Pseudomonas lipases are widely used for biotechnological applications. It is a meaningful work to design experiments to obtain high-level active lipase. There is a limiting factor for functional overexpression of the Pseudomonas lipase that a chaperone is necessary for effective folding. As previously reported, several methods had been used to resolve the problem. In this work, the lipase (LipA) and its chaperone (LipB) from a screened strain named AB which belongs to Pseudomonas aeruginosa were overexpressed in E. coli with two dual expression plasmid systems to enhance the production of the active lipase LipA without in vitro refolding process. Results In this work, we screened a lipase-produced strain named AB through the screening procedure, which was identified as P. aeruginosa on the basis of 16S rDNA. Genomic DNA obtained from the strain was used to isolate the gene lipA (936 bp) and lipase specific foldase gene lipB (1023 bp). One single expression plasmid system E. coli BL21/pET28a-lipAB and two dual expression plasmid systems E. coli BL21/pETDuet-lipA-lipB and E. coli BL21/pACYCDuet-lipA-lipB were successfully constructed. The lipase activities of the three expression systems were compared to choose the optimal expression method. Under the same cultured condition, the activities of the lipases expressed by E. coli BL21/pET28a-lipAB and E. coli BL21/pETDuet-lipA-lipB were 1300 U/L and 3200 U/L, respectively, while the activity of the lipase expressed by E. coli BL21/pACYCDuet-lipA-lipB was up to 8500 U/L. The lipase LipA had an optimal temperature of 30°C and an optimal pH of 9 with a strong pH tolerance. The active LipA could catalyze the reaction between fatty alcohols and fatty acids to generate fatty acid alkyl esters, which meant that LipA was able to catalyze esterification reaction. The most suitable fatty acid and alcohol substrates for esterification were octylic acid and hexanol, respectively. Conclusions The effect of different plasmid system on the active LipA expression was significantly different. pACYCDuet-lipA-lipB was more suitable for the expression of active LipA than pET28a-lipAB and pETDuet-lipA-lipB. The LipA showed obvious esterification activity and thus had potential biocatalytic applications. The expression method reported here can give reference for the expression of those enzymes that require chaperones.
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Affiliation(s)
- Xiangping Wu
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China
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Characterization of an extracellular lipase and its chaperone from Ralstonia eutropha H16. Appl Microbiol Biotechnol 2012; 97:2443-54. [DOI: 10.1007/s00253-012-4115-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 04/16/2012] [Accepted: 04/16/2012] [Indexed: 11/25/2022]
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14
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Quyen TD, Vu CH, Le GTT. Enhancing functional production of a chaperone-dependent lipase in Escherichia coli using the dual expression cassette plasmid. Microb Cell Fact 2012; 11:29. [PMID: 22380513 PMCID: PMC3359195 DOI: 10.1186/1475-2859-11-29] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2011] [Accepted: 03/01/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The lipase subfamilies I.1 and I.2 show more than 33% homology in the amino acid sequences and most members share another common property that their genes are clustered with the secondary genes whose protein products are required for folding the lipase into an active conformation and secretion into the culture medium. In previous studies, the lipase (LipA) and its chaperone (LipB) from Ralstonia sp. M1 were overexpressed in E. coli and the lipase was successfully refolded in vitro. The purpose of this study was to enhance the production of the active lipase LipA from Ralstonia sp. M1 in the heterologous host E. coli without in vitro refolding process, using two-plasmid co-expression systems and dual expression cassette plasmid systems. RESULTS To produce more active lipase from Ralstonia sp. M1 in E. coli without in vitro refolding process but with the help of overexpression of the chaperone (LipB1 and LipB3 corresponding to 56-aa truncated and 26-aa truncated chaperone LipB), six different expression systems including 2 two-plasmid co-expression systems (E. coli BL21/pELipABa + pELipB1k and BL21/pELipABa + pELipB3k) and 4 dual expression cassette plasmid systems (BL21/pELipAB-LipB1a, BL21/pELipAB-LipB3a, BL21/pELipA-LipB1a, and BL21/pELipA-LipB3a) were constructed. The two-plasmid co-expression systems (E. coli BL21/pELipABa + pELipB1k and BL21/pELipABa + pELipB3k) produced the active lipase at a level of 4 times as high as the single expression cassette plasmid system E. coli BL21/pELipABa did. For the first time, the dual expression cassette plasmid systems BL21/pELipAB-LipB1a and BL21/pELipAB-LipB3a yielded 29- and 19-fold production of the active lipase in comparison with the single expression cassette plasmid system E. coli BL21/pELipABa, respectively. Although the lipase amount was equally expressed in all these expression systems (40% of total cellular protein) and only a small fraction of the overexpressed lipase was folded in vivo into the functional lipase in soluble form whereas the main fraction was still inactive in the form of inclusion bodies. Another controversial finding was that the dual expression cassette plasmid systems E. coli BL21/pELipAB-LipB1a and E. coli/pELipAB-LipB3a secreted the active lipase into the culture medium of 51 and 29 times as high as the single expression cassette plasmid system E. coli pELipABa did, respectively, which has never been reported before. Another interesting finding was that the lipase form LipA6xHis (mature lipase fused with 6× histidine tag) expressed in the dual expression cassette plasmid systems (BL21/pELipA-LipB1a and BL21/pELipA-LipB3a) showed no lipase activity although the expression level of the lipase and two chaperone forms LipB1 and LipB3 in these systems remained as high as that in E. coli BL21/pELipABa + pELipB1k, BL21/pELipABa + pELipB3k, BL21/pELipAB-LipB1a, and BL21/pELipAB-LipB3a. The addition of Neptune oil or detergents into the LB medium increased the lipase production and secretion by up to 94%. CONCLUSIONS Our findings demonstrated that a dual expression cassette plasmid system E. coli could overproduce and secrete the active chaperone-dependent lipase (subfamilies I.1 and I.2) in vivo and an improved dual expression cassette plasmid system E. coli could be potentially applied for industrial-scale production of subfamily I.1 and I.2 lipases.
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Affiliation(s)
- Thi Dinh Quyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Distr, Caugiay 10600, Hanoi, Vietnam.
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Whangsuk W, Sungkeeree P, Thiengmag S, Kerdwong J, Sallabhan R, Mongkolsuk S, Loprasert S. Gene Cloning and Characterization of a Novel Highly Organic Solvent Tolerant Lipase from Proteus sp. SW1 and its Application for Biodiesel Production. Mol Biotechnol 2012; 53:55-62. [DOI: 10.1007/s12033-012-9518-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cho SS, Park DJ, Simkhada JR, Hong JH, Sohng JK, Lee OH, Yoo JC. A neutral lipase applicable in biodiesel production from a newly isolated Streptomyces sp. CS326. Bioprocess Biosyst Eng 2011; 35:227-34. [DOI: 10.1007/s00449-011-0598-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Accepted: 07/18/2011] [Indexed: 11/30/2022]
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17
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Yoo HY, Simkhada JR, Cho SS, Park DH, Kim SW, Seong CN, Yoo JC. A novel alkaline lipase from Ralstonia with potential application in biodiesel production. BIORESOURCE TECHNOLOGY 2011; 102:6104-6111. [PMID: 21388805 DOI: 10.1016/j.biortech.2011.02.046] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Revised: 02/10/2011] [Accepted: 02/10/2011] [Indexed: 05/30/2023]
Abstract
With the aim of isolating a biocatalyst able to catalyze biodiesel production from microbial source, Ralstonia sp. CS274 was isolated and a lipase from the strain (RL74) was purified. Molecular weight of RL74 was estimated to be 28,000 Da by SDS-PAGE. The activity was highest at 50-55°C and pH 8.0-9.5 and was stable at pH 7.0-12.0 and up to 45°C. It was resistant to oxidizing and reducing agents and the activity was enhanced by detergents. RL74 was 1,3 specific and K(m) and V(max) for p-nitrophenyl palmitate were 2.73 ± 0.6mM and 101.4 ± 1.9 mM/min mg, respectively. N-terminal amino acid sequence showed partial homology with that of Penicillium lipases. RL74 produced biodiesel more efficiently in palm oil than in soybean oil; and the production was highest at pH 8.0, at 5% methanol and at 20% water content.
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Affiliation(s)
- Hah-Young Yoo
- Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea
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Horchani H, Sabrina L, Régine L, Sayari A, Gargouri Y, Verger R. Heterologous expression and N-terminal His-tagging processes affect the catalytic properties of staphylococcal lipases: a monolayer study. J Colloid Interface Sci 2010; 350:586-94. [PMID: 20684959 DOI: 10.1016/j.jcis.2010.07.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2010] [Revised: 07/09/2010] [Accepted: 07/10/2010] [Indexed: 11/18/2022]
Abstract
The interfacial and kinetic properties of wild type, untagged recombinant and tagged recombinant forms of three staphylococcal lipases (SSL, SXL and SAL3) were compared using the monomolecular film technique. A kinetic study on the dependence of the stereoselectivity of these nine lipase forms on the surface pressure was performed using the three dicaprin isomers spread in the form of monomolecular films at the air-water interface. New parameters, termed Recombinant expression Effects on Catalysis (REC), N-Tag Effects on Catalysis (TEC), and N-Tag and Recombinant expression Effects on Catalysis (TREC), were introduced. The findings obtained showed that with all the lipases tested, the recombinant expression process and the N-terminal His-tag slightly affect the sn-1 preference for dicaprin enantiomers as well as the penetration capacity into monomolecular films of phosphatidylcholine but significantly decrease the catalytic rate of hydrolysis of three dicaprin isomers. This rate reduction is more pronounced at high surface pressures, i.e. at low interfacial energies. In conclusion, the effects of the heterologous expression process on the catalytic properties of the staphylococcal lipases are three times more deleterious than the presence of an N-terminal tag extension. In the case of the situation most commonly encountered in the literature, i.e. the heterologous expression of a tagged lipase, the rate of catalysis can be decreased by these processes by 42-83% on average in comparison with the values measured with the corresponding wild type form.
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Affiliation(s)
- Habib Horchani
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, BPW 3038 Sfax, Tunisia.
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The N-terminal His-tag and the recombination process affect the biochemical properties of Staphylococcus aureus lipase produced in Escherichia coli. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2009.07.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Ma X, Liu M, Ma Y, Gong Y, Wei D, Yang S. Disulfide bond cys30–cys299 and the fragment “96RIMQAPLT106”of the lid region of lip2 are critical for its biocatalytic activity. J Biotechnol 2008. [DOI: 10.1016/j.jbiotec.2008.07.1874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Quyen DT, Dao TT, Thanh Nguyen SL. A novel esterase from Ralstonia sp. M1: gene cloning, sequencing, high-level expression and characterization. Protein Expr Purif 2006; 51:133-40. [PMID: 16893659 DOI: 10.1016/j.pep.2006.06.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Revised: 06/13/2006] [Accepted: 06/14/2006] [Indexed: 11/24/2022]
Abstract
A newly isolated gene from Ralstonia sp. M1, encoding an esterase, was cloned in Escherichia coli and its nucleotide sequence determined. The 1.6kb insert revealed one complete open reading frame, predicted to encode an esterase (320 aa, 34.1kDa) with a pI of 9.86. EstR contained a putative oxyanion hole H36G37, a conserved pentapeptide G103HSLG107 and a conserved catalytic His265 and Asp237. The EstR sequence shared 64-70 and 44-48% identity with the hydrolases/acyltransferases from Burkholderia strains and from Ralstonia strains, respectively, 44 and 38% identity with the lactone-specific esterase from Pseudomonas fluorescens and Mesorhizobium loti, respectively. The esterase EstR was expressed with a high level of 41mg/g wet cells. The Ni-NTA-purified esterase EstR showed an optimal activity in the temperature range 60-65 degrees C and pH range 7.5-9.0 towards p-nitrophenyl caproate. The enzyme was found to be highly resistant to many organic solvents especially induced by ethanolamine. Metal ions showed slight effect on esterase activity. The inhibitor phenylmethanesulfonyl fluoride inhibited strongly the esterase. Triton X-45 induced the activation of EstR, but other detergents slightly to strongly decreased or completely inhibited. Among tested p-NP esters, caproate was the most preferential substrate of this esterase.
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Affiliation(s)
- Dinh Thi Quyen
- Institute of Biotechnology, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Road, Distr. Caugiay, 10600 Hanoi, Viet Nam.
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