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Mustafa M, Ali L, Islam W, Noman A, Zhou C, Shen L, Zhu T, Can L, Nasif O, Gasparovic K, latif F, Gao J. Heterologous expression and characterization of glycoside hydrolase with its potential applications in hyperthermic environment. Saudi J Biol Sci 2022; 29:751-757. [PMID: 35197741 PMCID: PMC8847942 DOI: 10.1016/j.sjbs.2021.09.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/07/2021] [Accepted: 09/29/2021] [Indexed: 01/25/2023] Open
Abstract
With the progressive focus on renewable energy via biofuels production from lignocellulosic biomass, cellulases are the key enzymes that play a fundamental role in this regard. This study aims to unravel the characteristics of Thermotoga maritima MSB8 (Tma) (a hyperthermophile from hot springs) thermostable glycoside hydrolase enzyme. Here, a glycoside hydrolase gene of Thermotoga maritima (Tma) was heterologously expressed and characterized. The gene was placed in the pQE-30 expression vector under the T5 promotor, and the construct pQE-30-Gh was then successfully integrated into Escherichia coli BL21 (DH5α) genome by transformation. Sequence of the glycoside hydrolase contained an open reading frame of 2.124 kbp, encoded a polypeptide of 721 amino acid residues. The molecular weight of the recombinant protein estimated was 79 kDa. The glycoside hydrolase was purified by Ni+2-NTA affinity chromatography and its enzymatic activity was investigated. The recombinant enzyme is highly stable within an extreme pH range (2.0–7.0) and highly thermostable at 80 °C for 72 h indicating its viability in hyperthermic environment and acidic nature. Moreover, the Ca2+ and Mn2+ introduction stimulated the residual activity of recombinant enzyme. Conclusively, the thermostable glycoside hydrolase possesses potential to be exploited for industrial applications at hyperthermic environment.
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Affiliation(s)
- Muhammad Mustafa
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- National Institute for Biotechnology and Genetic Engineering, Faisalabad 38000, Pakistan
| | - Liaqat Ali
- Kansas State University, Manhattan, KS 66506, United States
| | - Waqar Islam
- College of Geography, Fujian Normal University, Fuzhou 350007, China
| | - Ali Noman
- Department of Botany, Government College University, Faisalabad 38040, Pakistan
| | - Chengzeng Zhou
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Linsong Shen
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Taoting Zhu
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Liu Can
- College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Omaima Nasif
- Department of Physiology, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh 11461, Saudi Arabia
| | - Kristina Gasparovic
- Department of Plant Physiology, Slovak University of Agriculture, A.Hlinku 2, 94976, Slovakia
| | - Farooq latif
- National Institute for Biotechnology and Genetic Engineering, Faisalabad 38000, Pakistan
| | - Jiangtao Gao
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Corresponding author at: Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Abstract
The growing need for industrial production of bio-based acetoin and 2,3-butanediol (2,3-BD) is due to both environmental concerns, and their widespread use in the food, pharmaceutical, and chemical industries. Acetoin is a common spice added to many foods, but also a valuable reagent in many chemical syntheses. Similarly, 2,3-BD is an indispensable chemical on the platform in the production of synthetic rubber, printing inks, perfumes, antifreeze, and fuel additives. This state-of-the-art review focuses on representatives of the genus Bacillus as prospective producers of acetoin and 2,3-BD. They have the following important advantages: non-pathogenic nature, unpretentiousness to growing conditions, and the ability to utilize a huge number of substrates (glucose, sucrose, starch, cellulose, and inulin hydrolysates), sugars from the composition of lignocellulose (cellobiose, mannose, galactose, xylose, and arabinose), as well as waste glycerol. In addition, these strains can be improved by genetic engineering, and are amenable to process optimization. Bacillus spp. are among the best acetoin producers. They also synthesize 2,3-BD in titer and yield comparable to those of the pathogenic producers. However, Bacillus spp. show relatively lower productivity, which can be increased in the course of challenging future research.
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Dong D, Wang X, Deng T, Ning Z, Tian X, Zu H, Ding Y, Wang C, Wang S, Lyu M. A novel dextranase gene from the marine bacterium Bacillus aquimaris S5 and its expression and characteristics. FEMS Microbiol Lett 2021; 368:6105217. [PMID: 33476380 DOI: 10.1093/femsle/fnab007] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/18/2021] [Indexed: 01/18/2023] Open
Abstract
Dextranase specifically hydrolyzes dextran and is used to produce functional isomalto-saccharide prebiotics. Moreover, dextranase is used as an additive in mouthwash to remove dental plaque. We cloned and expressed the dextranase gene of the marine bacterium Bacillus aquimaris S5. The length of the BaDex gene was 1788 bp, encoding 573 amino acids. Using bioinformatics to predict and analyze the amino acid sequence of BaDex, we found the isoelectric point and instability coefficient to be 4.55 and 29.22, respectively. The average hydrophilicity (GRAVY) was -0.662. The secondary structure of BaDex consisted of 145 alpha helices, accounting for 25.31% of the protein; 126 extended strands, accounting for 21.99%; and 282 random coils, accounting for 49.21%. The 3D structure of the BaDex protein was predicted and simulated using SWISS-MODEL, and BaDex was classified as a Glycoside Hydrolase Family 66 protein. The optimal temperature and pH for BaDex activity were 40°C and 6.0, respectively. The hydrolysates had excellent antioxidant activity, and 8 U/mL of BaDex could remove 80% of dental plaque in MBRC experiment. This recombinant protein thus has great promise for applications in the food and pharmaceutical industries.
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Affiliation(s)
- Dongxue Dong
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Xuelian Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Tian Deng
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Zhe Ning
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Xiaopeng Tian
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Hangtian Zu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Yanshuai Ding
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Cang Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Shujun Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Collaborative Innovation Center of Modern Biological Manufacturing, Anhui University, 111 Jiulong Road, Hefei 230039, China
| | - Mingsheng Lyu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Collaborative Innovation Center of Modern Biological Manufacturing, Anhui University, 111 Jiulong Road, Hefei 230039, China
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Vadala BS, Deshpande S, Apte-Deshpande A. Soluble expression of recombinant active cellulase in E.coli using B.subtilis (natto strain) cellulase gene. J Genet Eng Biotechnol 2021; 19:7. [PMID: 33428026 PMCID: PMC7801579 DOI: 10.1186/s43141-020-00103-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 12/07/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND Cellulases are well known for their various industrial applications. They are naturally produced by different species of bacteria and fungi. Fermentation process of cellulase producers has limitation due to the high substrate cost required for cellulase induction and challenges to maintain the suitable condition for the respective cellulase production. Recombinant cellulase production could be the potential solution to these problems. In the current study, we investigated recombinant cellulase expression in Escherichia coli using cellulase gene from Bacillus subtilis. RESULTS Extracellular cellulase production from B. subtilis strain was first confirmed on CMC agar and then the cellulase gene (1500 bp) was amplified from this strain and was further cloned in pET21a expression vector. In initial experimental studies, recombinant cellulase expression was achieved in inclusion bodies through shake flask level fermentation of transformed E. coli expression host BL21DE3. Attempts were made to express this 55 KDa His tagged recombinant cellulase into soluble form by modifications in fermentation conditions. Partially purified recombinant cellulase was obtained using Ni-NTA affinity chromatography. The activity of the purified enzyme was confirmed by 3,5-dinitrosalicylic acid (DNS) qualitative assay. CONCLUSION Soluble expression of active recombinant cellulase can be achieved by subtle alteration in the upstream process.
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Affiliation(s)
- Bhuvan Shankar Vadala
- Central Dogma Pvt. Ltd, A4, Gulmohar Residency, Baner Road, Baner, Pune, Maharashtra, 411045, India
| | - Sumedh Deshpande
- Central Dogma Pvt. Ltd, A4, Gulmohar Residency, Baner Road, Baner, Pune, Maharashtra, 411045, India
| | - Anjali Apte-Deshpande
- Central Dogma Pvt. Ltd, A4, Gulmohar Residency, Baner Road, Baner, Pune, Maharashtra, 411045, India.
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Akram F, Haq IU. Overexpression and characterization of TnCel12B, a hyperthermophilic GH12 endo-1,4-β-glucanase cloned from Thermotoga naphthophila RKU-10 T. Anal Biochem 2020; 599:113741. [PMID: 32339490 DOI: 10.1016/j.ab.2020.113741] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/08/2020] [Accepted: 04/14/2020] [Indexed: 11/26/2022]
Abstract
A putative cellulolytic gene (825 bp) from Thermotoga naphthophila RKU-10T was overexpressed as an active soluble endo-1,4-β-glucanase (TnCel12B), belongs to glycoside hydrolase family 12 (GH12), in a mesophilic expression host. Heterologous expression and engineered bacterial cell mass was improved through specific strategies (induction and cultivation). Hence, intracellular activity of TnCel12B was enhanced in ZYBM9 modified medium (pH 7.0) by 8.38 and 6.25 fold with lactose (200 mM) and IPTG (0.5 mM) induction, respectively; and 6.95 fold was increased in ZYP-5052 auto-inducing medium after 8 h incubation at 26 °C (200 rev min-1). Purified TnCel12B with a molecular weight of ~32 kDa, was optimally active at 90 °C and pH 6.0; and exhibited prodigious stability over a wide range of temperature (50-85 °C) and pH (5.0-9.0) for 8 h TnCel12B displayed great resistance towards different chemical modulators, though activity was improved by Mg2+, Zn2+, Pb2+ and Ca2+. Purified TnCel12B had affinity with various substrates but peak activity was observed toward barley β-glucan (1664 U mg-1) and carboxymethyl cellulose (736 U mg-1). The values of Km, Vmax, kcat, and kcatKm-1 were found to be 4.63 mg mL-1, 916 μmol mg-1min-1, 1326.7 s-1 and 286.54 mL mg-1 s-1, respectively using CMC substrate. All noteworthy features of TnCel12B make it an appropriate industrial candidate for bioethanol production and various other potential applications.
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Affiliation(s)
- Fatima Akram
- Institute of Industrial Biotechnology, GC University, Lahore, 54000, Pakistan.
| | - Ikram Ul Haq
- Institute of Industrial Biotechnology, GC University, Lahore, 54000, Pakistan.
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Dehghanikhah F, Shakarami J, Asoodeh A. Purification and Biochemical Characterization of Alkalophilic Cellulase from the Symbiotic Bacillus subtilis BC1 of the Leopard Moth, Zeuzera pyrina (L.) (Lepidoptera: Cossidae). Curr Microbiol 2020; 77:1254-1261. [PMID: 32125446 DOI: 10.1007/s00284-020-01938-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/24/2020] [Indexed: 12/28/2022]
Abstract
In the current study, an extracellular cellulase belonging to symbiotic Bacillus subtilis Bc1 of the leopard moth is purified and characterized. The molecular mass of enzyme was 47.8 kDa using SDS-PAGE. The purified enzyme had optimum activity in temperature and pH around 60 °C and 8, respectively. The purified cellulase was introduced as a stable enzyme in a wide variety of temperature (20-80 °C) and pH (4-10) and remained active to more than 74% at 80 °C for 1 h. Moreover, the cellulase extremely was stabled in the presence of metal ions and organic solvents and its activity was increased by acetone (20% v/v), CaCl2 and CoCl2 and inhibited by MnCl2 and NiCl2. The values of enzyme's Km and Vmax were found to be 1.243 mg/mL and 271.3 µg/mL/min, respectively. The purified cellulase hydrolyzed cellulose, avicel and carboxymethyl cellulose (CMC) and the final product of CMC hydrolysis was cellobiose using thin-layer chromatography analysis. Consequently, owing to exo/endoglucanase activity and organic solvent, temperature and pH stability of the purified cellulase belong to B. subtilis BC1, it can be properly employed for various industrial purposes.
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Affiliation(s)
- Fahimeh Dehghanikhah
- Department of Plant Protection, Faculty of Agriculture, Lorestan University, Khorramabad, Iran
| | - Jahanshir Shakarami
- Department of Plant Protection, Faculty of Agriculture, Lorestan University, Khorramabad, Iran.
| | - Ahmad Asoodeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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Sahoo K, Sahoo RK, Gaur M, Subudhi E. Cellulolytic thermophilic microorganisms in white biotechnology: a review. Folia Microbiol (Praha) 2019; 65:25-43. [DOI: 10.1007/s12223-019-00710-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 04/15/2019] [Indexed: 10/26/2022]
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Chang JJ, Anandharaj M, Ho CY, Tsuge K, Tsai TY, Ke HM, Lin YJ, Ha Tran MD, Li WH, Huang CC. Biomimetic strategy for constructing Clostridium thermocellum cellulosomal operons in Bacillus subtilis. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:157. [PMID: 29930703 PMCID: PMC5991470 DOI: 10.1186/s13068-018-1151-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Enzymatic conversion of lignocellulosic biomass into soluble sugars is a major bottleneck in the plant biomass utilization. Several anaerobic organisms cope these issues via multiple-enzyme complex system so called 'cellulosome'. Hence, we proposed a "biomimic operon" concept for making an artificial cellulosome which can be used as a promising tool for the expression of cellulosomal enzymes in Bacillus subtilis. RESULTS According to the proteomic analysis of Clostridium thermocellum ATCC27405 induced by Avicel or cellobiose, we selected eight highly expressed cellulosomal genes including a scaffoldin protein gene (cipA), a cell-surface anchor gene (sdbA), two exoglucanase genes (celK and celS), two endoglucanase genes (celA and celR), and two xylanase genes (xynC and xynZ). Arranging these eight genes in two different orders, we constructed two different polycistronic operons using the ordered gene assembly in Bacillus method. This is the first study to express the whole CipA along with cellulolytic enzymes in B. subtilis. Each operon was successfully expressed in B. subtilis RM125, and the protein complex assembly, cellulose-binding ability, thermostability, and cellulolytic activity were demonstrated. The operon with a higher xylanase activity showed greater saccharification on complex cellulosic substrates such as Napier grass than the other operon. CONCLUSIONS In this study, a strategy for constructing an efficient cellulosome system was developed and two different artificial cellulosomal operons were constructed. Both operons could efficiently express the cellulosomal enzymes and exhibited cellulose saccharification. This strategy can be applied to different industries with cellulose-containing materials, such as papermaking, biofuel, agricultural compost, mushroom cultivation, and waste processing industries.
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Affiliation(s)
- Jui-Jen Chang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 402 Taiwan
| | - Marimuthu Anandharaj
- Biodiversity Research Center, Academia Sinica, Taipei, 11529 Taiwan
- Molecular and Biological Agricultural Sciences Program, Taiwan International Graduate Program, National Chung Hsing University and Academia Sinica, Taipei, 11529 Taiwan
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 40227 Taiwan
| | - Cheng-Yu Ho
- Department of Life Sciences, National Chung Hsing University, Taichung, 40227 Taiwan
| | - Kenji Tsuge
- Institute for Advanced Biosciences, Keio University, 403-1 Nipponkoku, Daihoji, Tsuruoka, Yamagata 997-0017 Japan
| | - Tsung-Yu Tsai
- Biodiversity Research Center, Academia Sinica, Taipei, 11529 Taiwan
| | - Huei-Mien Ke
- Biodiversity Research Center, Academia Sinica, Taipei, 11529 Taiwan
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 40227 Taiwan
| | - Yu-Ju Lin
- Biodiversity Research Center, Academia Sinica, Taipei, 11529 Taiwan
| | - Minh Dung Ha Tran
- Molecular and Biological Agricultural Sciences Program, Taiwan International Graduate Program, National Chung Hsing University and Academia Sinica, Taipei, 11529 Taiwan
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 40227 Taiwan
- Department of Life Sciences, National Chung Hsing University, Taichung, 40227 Taiwan
| | - Wen-Hsiung Li
- Biodiversity Research Center, Academia Sinica, Taipei, 11529 Taiwan
- Molecular and Biological Agricultural Sciences Program, Taiwan International Graduate Program, National Chung Hsing University and Academia Sinica, Taipei, 11529 Taiwan
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 40227 Taiwan
- Biotechnology Center, National Chung Hsing University, Taichung, 40227 Taiwan
- Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637 USA
| | - Chieh-Chen Huang
- Department of Life Sciences, National Chung Hsing University, Taichung, 40227 Taiwan
- Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung, 40227 Taiwan
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Rungrattanakasin B, Premjet S, Thanonkeo S, Klanrit P, Thanonkeo P. Cloning and expression of an endoglucanase gene from the thermotolerant fungus Aspergillus fumigatus DBiNU-1 in Kluyveromyces lactis. Braz J Microbiol 2018; 49:647-655. [PMID: 29449177 PMCID: PMC6066738 DOI: 10.1016/j.bjm.2017.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 09/30/2017] [Accepted: 10/14/2017] [Indexed: 11/24/2022] Open
Abstract
An intronless endoglucanase from thermotolerant Aspergillus fumigatus DBINU-1 was cloned, characterized and expressed in the yeast Kluyveromyces lactis. The full-length open reading frame of the endoglucanase gene from A. fumigatus DBiNU-1, designated Cel7, was 1383 nucleotides in length and encoded a protein of 460 amino acid residues. The predicted molecular weight and the isoelectric point of the A. fumigatus Cel7 gene product were 48.19 kDa and 5.03, respectively. A catalytic domain in the N-terminal region and a fungal type cellulose-binding domain/module in the C-terminal region were detected in the predicted polypeptide sequences. Furthermore, a signal peptide with 20 amino acid residues at the N-terminus was also detected in the deduced amino acid sequences of the endoglucanase from A. fumigatus DBiNU-1. The endoglucanase from A. fumigatus DBiNU-1 was successfully expressed in K. lactis, and the purified recombinant enzyme exhibited its maximum activity at pH 5.0 and 60 °C. The enzyme was very stable in a pH range from 4.0 to 8.0 and a temperature range from 30 to 60 °C. These features make it suitable for application in the paper, biofuel, and other chemical production industries that use cellulosic materials.
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Affiliation(s)
| | - Siripong Premjet
- Naresuan University, Faculty of Science, Department of Biology, Phitsanulok, Thailand
| | - Sudarat Thanonkeo
- Mahasarakham University, Walai Rukhavej Botanical Research Institute, Maha Sarakham, Thailand
| | - Preekamol Klanrit
- Khon Kaen University, Faculty of Technology, Department of Biotechnology, Khon Kaen, Thailand; Khon Kaen University, Faculty of Technology, Fermentation Research Center for Value Added Agricultural Products, Khon Kaen, Thailand
| | - Pornthap Thanonkeo
- Khon Kaen University, Faculty of Technology, Department of Biotechnology, Khon Kaen, Thailand; Khon Kaen University, Faculty of Technology, Fermentation Research Center for Value Added Agricultural Products, Khon Kaen, Thailand.
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Gupta P, Mishra AK, Vakhlu J. Cloning and characterization of thermo-alkalistable and surfactant stable endoglucanase from Puga hot spring metagenome of Ladakh (J&K). Int J Biol Macromol 2017; 103:870-877. [DOI: 10.1016/j.ijbiomac.2017.05.113] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/16/2017] [Accepted: 05/18/2017] [Indexed: 11/28/2022]
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Guan X, Chen P, Xu Q, Qian L, Huang J, Lin B. Expression, purification and molecular characterization of a novel endoglucanase protein from Bacillus subtilis SB13. Protein Expr Purif 2017; 134:125-131. [DOI: 10.1016/j.pep.2017.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 03/22/2017] [Accepted: 04/17/2017] [Indexed: 11/28/2022]
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Escherichia coli expressing endoglucanase gene from Thai higher termite bacteria for enzymatic and microbial hydrolysis of cellulosic materials. ELECTRON J BIOTECHN 2017. [DOI: 10.1016/j.ejbt.2017.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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13
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Haq IU, Akram F. Enhanced Production of a Recombinant Multidomain Thermostable GH9 Processive Endo-1,4-β-Glucanase (CenC) from Ruminiclostridium thermocellum in a Mesophilic Host Through Various Cultivation and Induction Strategies. Appl Biochem Biotechnol 2017; 183:171-188. [PMID: 28247309 DOI: 10.1007/s12010-017-2437-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 02/10/2017] [Indexed: 01/09/2023]
Abstract
Commonly, unintentional induction and inadvertently preparing medium for engineered Escherichia coli BL21 CodonPlus (DE3)-RIPL, give poor or variable yields of heterologous proteins. Therefore, to enhance the activity and production of an industrially relevant recombinant processive endo-1,4-β-glucanase (CenC) propagated in Escherichia coli BL21 CodonPlus(DE3)-RIPL through various cultivation and induction strategies. Investigation of various growth media and induction parameters revealed that high-cell-density and optimal CenC expression were obtained in ZYBM9 medium induced either with 0.5 mM IPTG/150 mM lactose, after 6 h induction at 37 °C; and before induction, bacterial cells were given heat shock (42 °C) for 1 h when culture density (OD600nm) reached at 0.6. Intracellular enzyme activity was enhanced by 6.67 and 3.20-fold in ZYBM9 and 3×ZYBM9 medium, respectively, under optimal conditions. Using YNG auto-induction medium, activity was 2.5-fold increased after 10 h incubation at 37 °C. Approximately similar results were obtained by transferring the optimized process at the bioreactor level. Results showed that the effective process strategy is essential to enhance recombinant bacterial cell mass and enzyme production from small to large-scale. To the best of our knowledge, this is the first ever report on enhanced production of thermostable processive endo-1,4-β-glucanase cloned from Ruminiclostridium thermocellum, which is a suitable candidate for industrial applications. Graphical Abstract Flow Chart Summary of Enhanced Production of a Recombinant Multidomain Thermostable GH9 Processive Endo-1,4-β-glucanase from Ruminiclostridium thermocellum.
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Affiliation(s)
- Ikram Ul Haq
- Institute of Industrial Biotechnology, GC University, Lahore, -54000, Pakistan
| | - Fatima Akram
- Institute of Industrial Biotechnology, GC University, Lahore, -54000, Pakistan.
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Dhar H, Kasana RC, Dutt S, Gulati A. Cloning and expression of low temperature active endoglucanase EG5C from Paenibacillus sp. IHB B 3084. Int J Biol Macromol 2015; 81:259-66. [DOI: 10.1016/j.ijbiomac.2015.07.060] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 07/25/2015] [Accepted: 07/28/2015] [Indexed: 10/23/2022]
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CenC, a multidomain thermostable GH9 processive endoglucanase from Clostridium thermocellum: cloning, characterization and saccharification studies. World J Microbiol Biotechnol 2015; 31:1699-710. [DOI: 10.1007/s11274-015-1920-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 08/03/2015] [Indexed: 01/29/2023]
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16
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Menendez E, Garcia-Fraile P, Rivas R. Biotechnological applications of bacterial cellulases. AIMS BIOENGINEERING 2015. [DOI: 10.3934/bioeng.2015.3.163] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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