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Kikani B, Patel R, Thumar J, Bhatt H, Rathore DS, Koladiya GA, Singh SP. Solvent tolerant enzymes in extremophiles: Adaptations and applications. Int J Biol Macromol 2023; 238:124051. [PMID: 36933597 DOI: 10.1016/j.ijbiomac.2023.124051] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/05/2023] [Accepted: 03/12/2023] [Indexed: 03/18/2023]
Abstract
Non-aqueous enzymology has always drawn attention due to the wide range of unique possibilities in biocatalysis. In general, the enzymes do not or insignificantly catalyze substrate in the presence of solvents. This is due to the interfering interactions of the solvents between enzyme and water molecules at the interface. Therefore, information about solvent-stable enzymes is scarce. Yet, solvent-stable enzymes prove quite valuable in the present day biotechnology. The enzymatic hydrolysis of the substrates in solvents synthesizes commercially valuable products, such as peptides, esters, and other transesterification products. Extremophiles, the most valuable yet not extensively explored candidates, can be an excellent source to investigate this avenue. Due to inherent structural attributes, many extremozymes can catalyze and maintain stability in organic solvents. In the present review, we aim to consolidate information about the solvent-stable enzymes from various extremophilic microorganisms. Further, it would be interesting to learn about the mechanism adapted by these microorganisms to sustain solvent stress. Various approaches to protein engineering are used to enhance catalytic flexibility and stability and broaden biocatalysis's prospects under non-aqueous conditions. It also describes strategies to achieve optimal immobilization with minimum inhibition of the catalysis. The proposed review would significantly aid our understanding of non-aqueous enzymology.
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Affiliation(s)
- Bhavtosh Kikani
- Department of Biosciences, Saurashtra University, Rajkot 360 005, Gujarat, India; Department of Biological Sciences, P.D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa 388 421, Gujarat, India
| | - Rajesh Patel
- Department of Biosciences, Veer Narmad South Gujarat University, Surat 395 007, Gujarat, India
| | - Jignasha Thumar
- Government Science College, Gandhinagar 382 016, Gujarat, India
| | - Hitarth Bhatt
- Department of Biosciences, Saurashtra University, Rajkot 360 005, Gujarat, India; Department of Microbiology, Faculty of Science, Atmiya University, Rajkot 360005, Gujarat, India
| | - Dalip Singh Rathore
- Department of Biosciences, Saurashtra University, Rajkot 360 005, Gujarat, India; Gujarat Biotechnology Research Centre, Gandhinagar 382 010, Gujarat, India
| | - Gopi A Koladiya
- Department of Biosciences, Saurashtra University, Rajkot 360 005, Gujarat, India
| | - Satya P Singh
- Department of Biosciences, Saurashtra University, Rajkot 360 005, Gujarat, India.
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Varrella S, Tangherlini M, Corinaldesi C. Deep Hypersaline Anoxic Basins as Untapped Reservoir of Polyextremophilic Prokaryotes of Biotechnological Interest. Mar Drugs 2020; 18:md18020091. [PMID: 32019162 PMCID: PMC7074082 DOI: 10.3390/md18020091] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 12/18/2022] Open
Abstract
Deep-sea hypersaline anoxic basins (DHABs) are considered to be among the most extreme ecosystems on our planet, allowing only the life of polyextremophilic organisms. DHABs’ prokaryotes exhibit extraordinary metabolic capabilities, representing a hot topic for microbiologists and biotechnologists. These are a source of enzymes and new secondary metabolites with valuable applications in different biotechnological fields. Here, we review the current knowledge on prokaryotic diversity in DHABs, highlighting the biotechnological applications of identified taxa and isolated species. The discovery of new species and molecules from these ecosystems is expanding our understanding of life limits and is expected to have a strong impact on biotechnological applications.
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Affiliation(s)
- Stefano Varrella
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, 60131 Ancona, Italy;
| | | | - Cinzia Corinaldesi
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, 60131 Ancona, Italy;
- Correspondence:
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Lu M, Dukunde A, Daniel R. Biochemical profiles of two thermostable and organic solvent-tolerant esterases derived from a compost metagenome. Appl Microbiol Biotechnol 2019; 103:3421-3437. [PMID: 30809711 DOI: 10.1007/s00253-019-09695-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 12/15/2022]
Abstract
Owing to the functional versatility and potential applications in industry, interest in lipolytic enzymes tolerant to organic solvents is increasing. In this study, functional screening of a compost soil metagenome resulted in identification of two lipolytic genes, est1 and est2, encoding 270 and 389 amino acids, respectively. The two genes were heterologously expressed and characterized. Est1 and Est2 are thermostable enzymes with optimal enzyme activities at 80 and 70 °C, respectively. A second-order rotatable design, which allows establishing the relationship between multiple variables with the obtained responses, was used to explore the combined effects of temperature and pH on esterase stability. The response curve indicated that Est1, and particularly Est2, retained high stability within a broad range of temperature and pH values. Furthermore, the effects of organic solvents on Est1 and Est2 activities and stabilities were assessed. Notably, Est2 activity was significantly enhanced (two- to tenfold) in the presence of ethanol, methanol, isopropanol, and 1-propanol over a concentration range between 6 and 30% (v/v). For the short-term stability (2 h of incubation), Est2 exhibited high tolerance against 60% (v/v) of ethanol, methanol, isopropanol, DMSO, and acetone, while Est1 activity resisted these solvents only at lower concentrations (below 30%, v/v). Est2 also displayed high stability towards some water-immiscible organic solvents, such as ethyl acetate, diethyl ether, and toluene. With respect to long-term stability, Est2 retained most of its activity after 26 days of incubation in the presence of 30% (v/v) ethanol, methanol, isopropanol, DMSO, or acetone. All of these features indicate that Est1 and Est2 possess application potential.
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Affiliation(s)
- Mingji Lu
- Department of Genomic and Applied Microbiology, Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August-University of Göttingen, Grisebachstraße 8, 37077, Göttingen, Germany
| | - Amélie Dukunde
- Department of Genomic and Applied Microbiology, Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August-University of Göttingen, Grisebachstraße 8, 37077, Göttingen, Germany
| | - Rolf Daniel
- Department of Genomic and Applied Microbiology, Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August-University of Göttingen, Grisebachstraße 8, 37077, Göttingen, Germany.
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Jia ML, Zhong XL, Lin ZW, Dong BX, Li G. Expression and characterization of an esterase belonging to a new family via isolation from a metagenomic library of paper mill sludge. Int J Biol Macromol 2019; 126:1192-1200. [PMID: 30625356 DOI: 10.1016/j.ijbiomac.2019.01.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/05/2019] [Accepted: 01/05/2019] [Indexed: 10/27/2022]
Abstract
A new bacterial lipolytic enzyme Est903 was obtained from paper mill sludge via metagenomic approach. Est903 displayed moderate similarities to two lipolytic enzymes from Rhodopirellula islandica and contained a distinctive pentapeptide motif (GFSAG) that differed from those of all known fourteen families of bacterial lipolytic enzymes. Est903 was regarded as from a new bacterial lipolytic enzyme family through multiple sequence alignment and phylogenetic analysis. The recombinant Est903 showed the highest activity for ρ-nitrophenol butyrate. The pH optimum and temperature optimum of the recombinant enzyme was 9.0 and 51 °C, respectively. Also, this enzyme displayed moderate thermostability, high activity under alkaline conditions, and good tolerance against several organic solvents. In addition, the compatibility test and washing performance analysis revealed that Est903 had good compatibility with commercial laundry detergent and high cleaning ability of oil stains. These good properties make Est903 a potential candidate in organic synthesis or detergent industry.
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Affiliation(s)
- Mei-Lu Jia
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Xiao-Lin Zhong
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Zhi-Wei Lin
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Bing-Xue Dong
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China.
| | - Gang Li
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China.
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Kadri T, Rouissi T, Magdouli S, Brar SK, Hegde K, Khiari Z, Daghrir R, Lauzon JM. Production and characterization of novel hydrocarbon degrading enzymes from Alcanivorax borkumensis. Int J Biol Macromol 2018; 112:230-240. [DOI: 10.1016/j.ijbiomac.2018.01.177] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 01/26/2018] [Accepted: 01/27/2018] [Indexed: 11/16/2022]
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Huo YY, Rong Z, Jian SL, Xu CD, Li J, Xu XW. A Novel Halotolerant Thermoalkaliphilic Esterase from Marine Bacterium Erythrobacter seohaensis SW-135. Front Microbiol 2017; 8:2315. [PMID: 29213264 PMCID: PMC5702849 DOI: 10.3389/fmicb.2017.02315] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 11/09/2017] [Indexed: 01/08/2023] Open
Abstract
A novel esterase gene, e69, was cloned from Erythrobacter seohaensis SW-135, which was isolated from a tidal flat sediment of the Yellow Sea in Korea. This gene is 825 bp in length and codes for a 29.54 kDa protein containing 274 amino acids. Phylogenetic analysis showed that E69 is a new member of the bacterial lipolytic enzyme family IV. This enzyme exhibited the highest level of activity toward p-nitrophenyl (NP) butyrate but little or no activity toward the other p-NP esters tested. The optimum temperature and pH of the catalytic activity of E69 were 60°C and pH 10.5, respectively. The enzyme exhibited stable activity over a wide range of alkaline pH values (7.5-9.5). In addition, E69 was found to be a halotolerant esterase as it exhibited the highest hydrolytic activity in the presence of 0.5 M NaCl and was still active in the presence of 3 M NaCl. Moreover, it possessed some degree of tolerance to Triton X-100 and several organic solvents. Through homology modeling and comparison with other esterases, it was suggested that the absence of the cap domain and its narrow substrate-binding pocket might be responsible for its narrow substrate specificity. Sequence and structural analysis results suggested that its high ratio of negatively to positively charged residues, large hydrophobic surface area, and negative electrostatic potential on the surface may be responsible for its alkaline adaptation. The results of this study provide insight into marine alkaliphilic esterases, and the unique properties of E69 make it a promising candidate as a biocatalyst for industrial applications.
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Affiliation(s)
- Ying-Yi Huo
- Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China
| | - Zhen Rong
- Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China
| | - Shu-Ling Jian
- Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China
| | - Cao-Di Xu
- Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China
| | - Jixi Li
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, China
| | - Xue-Wei Xu
- Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China
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Characterization of a novel cold active and salt tolerant esterase from Zunongwangia profunda. Enzyme Microb Technol 2016; 85:1-11. [DOI: 10.1016/j.enzmictec.2015.12.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Revised: 12/18/2015] [Accepted: 12/29/2015] [Indexed: 01/13/2023]
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A novel cold-adapted and highly salt-tolerant esterase from Alkalibacterium sp. SL3 from the sediment of a soda lake. Sci Rep 2016; 6:19494. [PMID: 26915906 PMCID: PMC4768246 DOI: 10.1038/srep19494] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 12/14/2015] [Indexed: 01/26/2023] Open
Abstract
A novel esterase gene (estSL3) was cloned from the Alkalibacterium sp. SL3, which was isolated from the sediment of soda lake Dabusu. The 636-bp full-length gene encodes a polypeptide of 211 amino acid residues that is closely related with putative GDSL family lipases from Alkalibacterium and Enterococcus. The gene was successfully expressed in E. coli, and the recombinant protein (rEstSL3) was purified to electrophoretic homogeneity and characterized. rEstSL3 exhibited the highest activity towards pNP-acetate and had no activity towards pNP-esters with acyl chains longer than C8. The enzyme was highly cold-adapted, showing an apparent temperature optimum of 30 °C and remaining approximately 70% of the activity at 0 °C. It was active and stable over the pH range from 7 to 10, and highly salt-tolerant up to 5 M NaCl. Moreover, rEstSL3 was strongly resistant to most tested metal ions, chemical reagents, detergents and organic solvents. Amino acid composition analysis indicated that EstSL3 had fewer proline residues, hydrogen bonds and salt bridges than mesophilic and thermophilic counterparts, but more acidic amino acids and less hydrophobic amino acids when compared with other salt-tolerant esterases. The cold active, salt-tolerant and chemical-resistant properties make it a promising enzyme for basic research and industrial applications.
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Jiang H, Zhang S, Gao H, Hu N. Characterization of a cold-active esterase from Serratia sp. and improvement of thermostability by directed evolution. BMC Biotechnol 2016; 16:7. [PMID: 26800680 PMCID: PMC4722774 DOI: 10.1186/s12896-016-0235-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 01/13/2016] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND In recent years, cold-active esterases have received increased attention due to their attractive properties for some industrial applications such as high catalytic activity at low temperatures. RESULTS An esterase-encoding gene (estS, 909 bp) from Serratia sp. was identified, cloned and expressed in Escherichia coli DE3 (BL21). The estS encoded a protein (EstS) of 302 amino acids with a predicted molecular weight of 32.5 kDa. It showed the highest activity at 10 °C and pH 8.5. EstS was cold active and retained ~92 % of its original activity at 0 °C. Thermal inactivation analysis showed that the T1/2 value of EstS was 50 min at 50 °C (residual activity 41.23 %) after 1 h incubation. EstS is also quite stable in high salt conditions and displayed better catalytic activity in the presence of 4 M NaCl. To improve the thermo-stability of EstS, variants of estS gene were created by error-prone PCR. A mutant 1-D5 (A43V, R116W, D147N) that showed higher thermo-stability than its wild type predecessor was selected. 1-D5 showed enhanced T1/2 of 70 min at 50 °C and retained 63.29 % of activity after incubation at 50 °C for 60 min, which were about 22 % higher than the wild type (WT). CD spectrum showed that the secondary structure of WT and 1-D5 are more or less similar, but an increase in β-sheets was recorded, which enhanced the thermostability of mutant protein. CONCLUSION EstS was a novel cold-active and salt-tolerant esterase and half-life of mutant 1-D5 was enhanced by 1.4 times compared with WT. The features of EstS are interesting and can be exploited for commercial applications. The results have also provided useful information about the structure and function of Est protein.
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Affiliation(s)
- Huang Jiang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, P. R. China.
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
| | - Shaowei Zhang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, P. R. China.
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
| | - Haofeng Gao
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, P. R. China.
| | - Nan Hu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, P. R. China.
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A cold-adapted, solvent and salt tolerant esterase from marine bacterium Psychrobacter pacificensis. Int J Biol Macromol 2015; 81:180-7. [DOI: 10.1016/j.ijbiomac.2015.07.045] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 07/22/2015] [Accepted: 07/24/2015] [Indexed: 11/20/2022]
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Hu Y, Liu Y, Li J, Feng Y, Lu N, Zhu B, Xue S. Structural and functional analysis of a low-temperature-active alkaline esterase from South China Sea marine sediment microbial metagenomic library. J Ind Microbiol Biotechnol 2015; 42:1449-61. [PMID: 26350078 DOI: 10.1007/s10295-015-1653-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 06/30/2015] [Indexed: 10/23/2022]
Abstract
A low-temperature-active alkaline esterase, Est12, from a marine sediment metagenomic fosmid library was identified. Est12 prefers short- and middle-chain p-nitrophenol esters as substrate with optimum temperature and pH value of 50 °C and 9.0, respectively, and nearly 50 % of maximum activity retained at 5 °C. The hydrolysis activity of Est12 was stable at 40 °C. Ca(2+) especially activated the activity of Est12 to about 151 % of the control. DEPC and PMSF inhibited the activity of Est12 to 34 and 25 %, respectively. In addition, Est12 was more tolerable to methanol compared to other organic solvents tested. The crystal structure of Est12 at 1.39 Å resolution showed that the cap domain which is composed of an α-helix and a flexible region resulted in a relatively wide spectrum of substrate, with p-nitrophenol caproate as the preferred one. Furthermore, the flexible cap domain and the high percentage of Gly, Ser, and Met may play important roles in the adaptation of Est12 to low temperature.
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Affiliation(s)
- Yongfei Hu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,Beijing Key Laboratory of Microbial Drug Resistance and Resistome, Beijing, 100101, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310006, China
| | - Yinghui Liu
- Marine Bioengineering Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Jing Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,Beijing Key Laboratory of Microbial Drug Resistance and Resistome, Beijing, 100101, China
| | - Yanbin Feng
- Marine Bioengineering Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Na Lu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,Beijing Key Laboratory of Microbial Drug Resistance and Resistome, Beijing, 100101, China
| | - Baoli Zhu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. .,Beijing Key Laboratory of Microbial Drug Resistance and Resistome, Beijing, 100101, China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310006, China.
| | - Song Xue
- Marine Bioengineering Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
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Romano D, Bonomi F, de Mattos MC, de Sousa Fonseca T, de Oliveira MDCF, Molinari F. Esterases as stereoselective biocatalysts. Biotechnol Adv 2015; 33:547-65. [PMID: 25677731 DOI: 10.1016/j.biotechadv.2015.01.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/19/2015] [Accepted: 01/20/2015] [Indexed: 12/23/2022]
Abstract
Non-lypolitic esterases are carboxylester hydrolases with preference for the hydrolysis of water-soluble esters bearing short-chain acyl residues. The potential of esterases as enantioselective biocatalysts has enlarged in the last few years due to the progresses achieved in different areas, such as screening methodologies, overproduction of recombinant esterases, structural information useful for understanding the rational behind enantioselectivity, and efficient methods in protein engineering. Contributions of these complementary know-hows to the development of new robust enantioselective esterases are critically discussed in this review.
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Affiliation(s)
- Diego Romano
- Department of Food, Environmental and Nutritional Sciences (DEFENS), University of Milan, Via Mangiagalli 25, 20133 Milan, Italy
| | - Francesco Bonomi
- Department of Food, Environmental and Nutritional Sciences (DEFENS), University of Milan, Via Mangiagalli 25, 20133 Milan, Italy
| | - Marcos Carlos de Mattos
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Campus do Pici, Postal Box 6044, 60455-970 Fortaleza, Ceará, Brazil
| | - Thiago de Sousa Fonseca
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Campus do Pici, Postal Box 6044, 60455-970 Fortaleza, Ceará, Brazil
| | | | - Francesco Molinari
- Department of Food, Environmental and Nutritional Sciences (DEFENS), University of Milan, Via Mangiagalli 25, 20133 Milan, Italy
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Esteban-Torres M, Mancheño JM, de las Rivas B, Muñoz R. Characterization of a cold-active esterase from Lactobacillus plantarum suitable for food fermentations. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:5126-5132. [PMID: 24856291 DOI: 10.1021/jf501493z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Lactobacillus plantarum is a lactic acid bacteria that can be found in numerous fermented foods. Esterases from L. plantarum exert a fundamental role in food aroma. In the present study, the gene lp_2631 encoding a putative esterase was cloned and expressed in Escherichia coli BL21 (DE3) and the overproduced Lp_2631 protein has been biochemically characterized. Lp_2631 exhibited optimal esterase activity at 20 °C and more than 90% of maximal activity at 5 °C, being the first cold-active esterase described in a lactic acid bacteria. Lp_2631 exhibited 40% of its maximal activity after 2 h of incubation at 65 °C. Lp_2631 also showed marked activity in the presence of compounds commonly found in food fermentations, such as NaCl, ethanol, or lactic acid. The results suggest that Lp_2631 might be a useful esterase to be used in food fermentations.
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Affiliation(s)
- María Esteban-Torres
- Laboratorio de Biotecnología Bacteriana, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN), Consejo Superior de Investigaciones Científicas (CSIC) , Juan de la Cierva 3, 28006 Madrid, Spain
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