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Chadha A, Padhi SK, Stella S, Venkataraman S, Saravanan T. Microbial alcohol dehydrogenases: recent developments and applications in asymmetric synthesis. Org Biomol Chem 2024; 22:228-251. [PMID: 38050738 DOI: 10.1039/d3ob01447a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Alcohol dehydrogenases are a well-known group of enzymes in the class of oxidoreductases that use electron transfer cofactors such as NAD(P)+/NAD(P)H for oxidation or reduction reactions of alcohols or carbonyl compounds respectively. These enzymes are utilized mainly as purified enzymes and offer some advantages in terms of green chemistry. They are environmentally friendly and a sustainable alternative to traditional chemical synthesis of bulk and fine chemicals. Industry has implemented several whole-cell biocatalytic processes to synthesize pharmaceutically active ingredients by exploring the high selectivity of enzymes. Unlike the whole cell system where cofactor regeneration is well conserved within the cellular environment, purified enzymes require additional cofactors or a cofactor recycling system in the reaction, even though cleaner reactions can be carried out with fewer downstream work-up problems. The challenge of producing purified enzymes in large quantities has been solved in large part by the use of recombinant enzymes. Most importantly, recombinant enzymes find applications in many cascade biotransformations to produce several important chiral precursors. Inevitably, several dehydrogenases were engineered as mere recombinant enzymes could not meet the industrial requirements for substrate and stereoselectivity. In recent years, a significant number of engineered alcohol dehydrogenases have been employed in asymmetric synthesis in industry. In a parallel development, several enzymatic and non-enzymatic methods have been established for regenerating expensive cofactors (NAD+/NADP+) to make the overall enzymatic process more efficient and economically viable. In this review article, recent developments and applications of microbial alcohol dehydrogenases are summarized by emphasizing notable examples.
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Affiliation(s)
- Anju Chadha
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India.
| | - Santosh Kumar Padhi
- Biocatalysis and Enzyme Engineering Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500 046, Telangana, India.
| | - Selvaraj Stella
- Department of Chemistry, Sarah Tucker College (Affiliated to Manonmaniam Sundaranar University), Tirunelveli-627007, Tamil Nadu, India.
| | - Sowmyalakshmi Venkataraman
- Department of Pharmaceutical Chemistry, Sri Ramachandra Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education & Research, Chennai, 600116, Tamil Nadu, India.
| | - Thangavelu Saravanan
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
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Sannelli F, Jensen PR, Meier S. In-Cell NMR Approach for Real-Time Exploration of Pathway Versatility: Substrate Mixtures in Nonengineered Yeast. Anal Chem 2023; 95:7262-7270. [PMID: 37097609 DOI: 10.1021/acs.analchem.3c00225] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
The central carbon metabolism of microbes will likely be used in future sustainable bioproduction. A sufficiently deep understanding of central metabolism would advance the control of activity and selectivity in whole-cell catalysis. Opposite to the more obvious effects of adding catalysts through genetic engineering, the modulation of cellular chemistry through effectors and substrate mixtures remains less clear. NMR spectroscopy is uniquely suited for in-cell tracking to advance mechanistic insight and to optimize pathway usage. Using a comprehensive and self-consistent library of chemical shifts, hyperpolarized NMR, and conventional NMR, we probe the versatility of cellular pathways to changes in substrate composition. Conditions for glucose influx into a minor pathway to an industrial precursor (2,3-butanediol) can thus be designed. Changes to intracellular pH can be followed concurrently, while mechanistic details for the minor pathway can be derived using an intermediate-trapping strategy. Overflow at the pyruvate level can be induced in nonengineered yeast with suitably mixed carbon sources (here glucose with auxiliary pyruvate), thus increasing glucose conversion to 2,3-butanediol by more than 600-fold. Such versatility suggests that a reassessment of canonical metabolism may be warranted using in-cell spectroscopy.
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Affiliation(s)
- Francesca Sannelli
- Department of Chemistry, Technical University of Denmark, Kemitorvet, Building 207, 2800 Kgs Lyngby, Denmark
| | - Pernille Rose Jensen
- Department of Health Technology, Technical University of Denmark, Elektrovej 349, 2800 Kgs Lyngby, Denmark
| | - Sebastian Meier
- Department of Chemistry, Technical University of Denmark, Kemitorvet, Building 207, 2800 Kgs Lyngby, Denmark
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Banerjee B, Singh A, Kaur G. Baker’s yeast ( Saccharomyces cerevisiae) catalyzed synthesis of bioactive heterocycles and some stereoselective reactions. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Saccharomyces cerevisiae, commonly known as baker’s yeast, has gained significant importance as a mild, low-cost, environmentally benign biocatalyst. Initially it was mostly employed as an efficient catalyst for the enantioselective reduction of carbonyl compounds. Over the last decade, baker’s yeast has found versatile catalytic applications in various organic transformations. Many multicomponent reactions were also catalyzed by baker’s yeast. Various heterocyclic scaffolds with immense biological activities were synthesized by employing baker’s yeast as catalyst at room temperature. In this communication, we have summarized baker’s yeast catalyzed various organic transformations focusing primarily on heterocyclic synthesis.
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Affiliation(s)
- Bubun Banerjee
- Department of Chemistry , Akal University , Talwandi Sabo , Bathinda , Punjab , 151302 , India
| | - Arvind Singh
- Department of Chemistry , Akal University , Talwandi Sabo , Bathinda , Punjab , 151302 , India
| | - Gurpreet Kaur
- Department of Chemistry , Akal University , Talwandi Sabo , Bathinda , Punjab , 151302 , India
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Kalay E, Şahin E. Biocatalytic asymmetric synthesis of (R)-1-tetralol using Lactobacillus paracasei BD101. Chirality 2021; 33:447-453. [PMID: 33970507 DOI: 10.1002/chir.23318] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 11/10/2022]
Abstract
Asymmetric bioreduction of ketones is a fundamental process in the production of organic molecules. Compounds containing tetralone rings are found in the structure of many biologically active and pharmaceutical molecules. Biocatalytic reduction of ketones is one of the most promising and significant routes to prepare optically active alcohols. In this study, the reductive capacity of Lactobacillus paracasei BD101 was investigated as whole-cell biocatalyst in the enantioselective reduction of 1-tetralone (1). In biocatalytic reduction reactions, the conversion of the substrate and the enantiomeric excess (ee) of the product are significantly affected by optimization parameters such as temperature, agitation rate, pH, and incubation time. Effects of these parameters on ee and conversion were investigated comprehensively. (R)-1-tetralol ((R)-2), which can be used to treat disorder such as obsessive compulsive, post-traumatic stress, premenstrual dysphoric, and social anxiety, was manufactured in enantiopure form, high yield and gram-scale, using whole-cell biocatalysts of L. paracasei BD101. The 7.04 g of (R)-2 was obtained in optically pure form with 95% yield. Also, to our knowledge, this is the first report on production of (R)-2 using whole-cell biocatalyst in excellent yield, conversion, enantiopure form and gram scale. This is a clean, eco-friendly and cheap method for the synthesis of (R)-2 compared with chemical catalyst.
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Affiliation(s)
- Erbay Kalay
- Kars Vocational School, Kafkas University, Kars, Turkey
| | - Engin Şahin
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Bayburt University, Bayburt, Turkey
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Andreu C, Gómez-Peinado J, Winandy L, Fischer R, Del Olmo ML. Surface display of HFBI and DewA hydrophobins on Saccharomyces cerevisiae modifies tolerance to several adverse conditions and biocatalytic performance. Appl Microbiol Biotechnol 2021; 105:1505-1518. [PMID: 33484321 DOI: 10.1007/s00253-021-11090-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/14/2020] [Accepted: 01/03/2021] [Indexed: 02/06/2023]
Abstract
Hydrophobins are relatively small proteins produced naturally by filamentous fungi with interesting biotechnological and biomedical applications given their self-assembly capacity, efficient adherence to natural and artificial surfaces, and to introduce modifications on the hydrophobicity/hydrophilicity of surfaces. In this work we demonstrate the efficient expression on the S. cerevisiae cell surface of class II HFBI of Trichoderma reesei and class I DewA of Aspergillus nidulans, a hydrophobin not previously exposed, using the Yeast Surface Display a-agglutinin (Aga1-Aga2) system. We show that the resulting modifications affect surface properties, and also yeast cells' resistance to several adverse conditions. The fact that viability of the engineered strains increases under heat and osmotic stress is particularly interesting. Besides, improved biocatalytic activity toward the reduction of ketone 1-phenoxypropan-2-one takes place in the reactions carried out at both 30 °C and 40 °C, within a concentration range between 0.65 and 2.5 mg/mL. These results suggest interesting potential applications for hydrophobin-exposing yeasts. KEY POINTS : • Class I hydrophobin DewA can be efficiently exposed on S. cerevisiae cell surfaces. • Yeast exposure of HFBI and DewA increases osmotic and heat resistance. • Engineered strains show modified biocatalytic behavior.
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Affiliation(s)
- Cecilia Andreu
- Departament de Química Orgànica, Facultat de Farmàcia, Universitat de València, Burjassot, València, Spain
| | - Javier Gómez-Peinado
- Departament de Bioquímica i Biologia Molecular, Facultat de Ciències Biològiques, Universitat de València, Burjassot, València, Spain
| | - Lex Winandy
- Department of Microbiology, Karlsruhe Institute of Technology (KIT)-South Campus, Fritz-Haber-Weg 4, D-76131, Karlsruhe, Germany
| | - Reinhard Fischer
- Department of Microbiology, Karlsruhe Institute of Technology (KIT)-South Campus, Fritz-Haber-Weg 4, D-76131, Karlsruhe, Germany
| | - Marcel Li Del Olmo
- Departament de Bioquímica i Biologia Molecular, Facultat de Ciències Biològiques, Universitat de València, Burjassot, València, Spain.
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Nawaz MZ, Bilal M, Tariq A, Iqbal HMN, Alghamdi HA, Cheng H. Bio-purification of sugar industry wastewater and production of high-value industrial products with a zero-waste concept. Crit Rev Food Sci Nutr 2021; 61:3537-3554. [PMID: 32820646 DOI: 10.1080/10408398.2020.1802696] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In recent years, biorefinery approach with a zero-waste concept has gained a lot research impetus to boost the environment and bioeconomy in a sustainable manner. The wastewater from sugar industries contains miscellaneous compounds and need to be treated chemically or biologically before being discharged into water bodies. Efficient utilization of wastewater produced by sugar industries is a key point to improve its economy. Thus, interest in the sugar industry wastes has grown in both fundamental and applied research fields, over the years. Although, traditional methods being used to process such wastewaters are effective yet are tedious, laborious and time intensive. Considering the diverse nature of wastewaters from various sugar-manufacturing processes, the development of robust, cost-competitive, sustainable and clean technologies has become a challenging task. Under the recent scenario of cleaner production and consumption, the biorefinery and/or close-loop concept, though using different technologies and multi-step processes, namely, bio-reduction, bio-accumulation or biosorption using a variety of microbial strains, has stepped-up as the method of choice for a sustainable exploitation of a wide range of organic waste matter along with the production of high-value products of industrial interests. This review comprehensively describes the use of various microbial strains employed for eliminating the environmental pollutants from sugar industry wastewater. Moreover, the main research gaps are also critically discussed along with the prospects for the efficient purification of sugar industry wastewaters with the concomitant production of high-value products using a biorefinery approach. In this review, we emphasized that the biotransformation/biopurification of sugar industry waste into an array of value-added compounds such as succinic acid, L-arabinose, solvents, and xylitol is a need of hour and is futuristic approach toward achieving cleaner production and consumption.
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Affiliation(s)
- Muhammad Zohaib Nawaz
- Center for Advanced Studies in Agriculture and Food Security, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Arslan Tariq
- Center for Advanced Studies in Agriculture and Food Security, University of Agriculture, Faisalabad, Pakistan
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, Mexico
| | - Huda Ahmed Alghamdi
- Department of Biology, College of Sciences, King Khalid University, Abha, Saudi Arabia
| | - Hairong Cheng
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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Hwang J, Bang I, Kim D, Shin SC, Chin YW, Kim TW, Kim HJ. Genome sequence of the potential probiotic eukaryote Saccharomyces cerevisiae KCCM 51299. 3 Biotech 2020; 10:185. [PMID: 32257741 DOI: 10.1007/s13205-020-02174-9] [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: 10/22/2019] [Accepted: 03/20/2020] [Indexed: 10/24/2022] Open
Abstract
Saccharomyces cerevisiae KCCM 51299, a potential probiotic yeast overproducing glutathione, has been isolated from among 272 yeast strains from the relatively safe Nuruk. The genome sequence of S. cerevisiae KCCM 51299 was analyzed and a near-complete genome (12 Mb) with 19 contigs was assembled after PacBio single-molecule real-time (SMRT) sequencing. The genome of S. cerevisiae KCCM 51299 was compared to the S. cerevisiae s288c reference genome. Additionally, genes involved in glutathione biosynthesis were identified, and the glutathione biosynthesis pathway was constructed in silico based on these genes. Furthermore, S. cerevisiae KCCM 51299 genes were compared with those in other yeast genomes. Finally, genome-scale in silico flux analysis was carried out, and a metabolic engineering strategy for glutathione biosynthesis was generated. These results provide useful information to further develop eukaryotic probiotics to overproduce glutathione.
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Immobilization of permeabilized cells of baker’s yeast for decomposition of H2O2 by catalase. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2019. [DOI: 10.2478/pjct-2019-0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Permeabilization is one of the effective tools, used to increase the accessibility of intracellular enzymes. Immobilization is one of the best approaches to reuse the enzyme. Present investigation use both techniques to obtain a biocatalyst with high catalase activity. At the beginning the isopropyl alcohol was used to permeabilize cells of baker’s yeast in order to maximize the catalase activity within the treated cells. Afterwards the permeabilized cells were immobilized in calcium alginate beads and this biocatalyst was used for the degradation of hydrogen peroxide to oxygen and water. The optimal sodium alginate concentration and cell mass concentration for immobilization process were determined. The temperature and pH for maximum decomposition of hydrogen peroxide were assigned and are 20°C and 7 respectively. Prepared biocatalyst allowed 3.35-times faster decomposition as compared to alginate beads with non permeabilized cells. The immobilized biocatalyst lost ca. 30% activity after ten cycles of repeated use in batch operations. Each cycles duration was 10 minutes. Permeabilization and subsequent immobilization of the yeast cells allowed them to be transformed into biocatalysts with an enhanced catalase activity, which can be successfully used to decompose hydrogen peroxide.
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Lehnen M, Ebert BE, Blank LM. Elevated temperatures do not trigger a conserved metabolic network response among thermotolerant yeasts. BMC Microbiol 2019; 19:100. [PMID: 31101012 PMCID: PMC6525440 DOI: 10.1186/s12866-019-1453-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 04/09/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Thermotolerance is a highly desirable trait of microbial cell factories and has been the focus of extensive research. Yeast usually tolerate only a narrow temperature range and just two species, Kluyveromyces marxianus and Ogataea polymorpha have been described to grow at reasonable rates above 40 °C. However, the complex mechanisms of thermotolerance in yeast impede its full comprehension and the rare physiological data at elevated temperatures has so far not been matched with corresponding metabolic analyses. RESULTS To elaborate on the metabolic network response to increased fermentation temperatures of up to 49 °C, comprehensive physiological datasets of several Kluyveromyces and Ogataea strains were generated and used for 13C-metabolic flux analyses. While the maximum growth temperature was very similar in all investigated strains, the metabolic network response to elevated temperatures was not conserved among the different species. In fact, metabolic flux distributions were remarkably irresponsive to increasing temperatures in O. polymorpha, while the K. marxianus strains exhibited extensive flux rerouting at elevated temperatures. CONCLUSIONS While a clear mechanism of thermotolerance is not deducible from the fluxome level alone, the generated data can be valued as a knowledge repository for using temperature to modulate the metabolic activity towards engineering goals.
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Affiliation(s)
- Mathias Lehnen
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and Biotechnology, RWTH Aachen University, Worringer Weg 1, D-52074 Aachen, Germany
| | - Birgitta E. Ebert
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and Biotechnology, RWTH Aachen University, Worringer Weg 1, D-52074 Aachen, Germany
| | - Lars M. Blank
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and Biotechnology, RWTH Aachen University, Worringer Weg 1, D-52074 Aachen, Germany
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Immobilized Whole-Cell Transaminase Biocatalysts for Continuous-Flow Kinetic Resolution of Amines. Catalysts 2019. [DOI: 10.3390/catal9050438] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Immobilization of transaminases creates promising biocatalysts for production of chiral amines in batch or continuous-flow mode reactions. E. coli cells containing overexpressed transaminases of various selectivities and hollow silica microspheres as supporting agent were immobilized by an improved sol-gel process to produce immobilized transaminase biocatalysts with suitable stability and mechanical properties for continuous-flow applications. The immobilized cell-based transaminase biocatalyst proved to be durable and easy-to-use in kinetic resolution of four racemic amines 1a–d. The batch and continuous-flow mode kinetic resolutions with transaminase biocatalyst of opposite stereopreference provided access to both enantiomers of the corresponding amines. By using the most suitable immobilized transaminase biocatalysts, this study describes the first transaminase-based approach for the production of both pure enantiomers of 1-(3,4-dimethoxyphenyl)ethan-1-amine 1d.
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Lee H, Han C, Lee HW, Park G, Jeon W, Ahn J, Lee H. Development of a promising microbial platform for the production of dicarboxylic acids from biorenewable resources. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:310. [PMID: 30455739 PMCID: PMC6225622 DOI: 10.1186/s13068-018-1310-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/30/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND As a sustainable industrial process, the production of dicarboxylic acids (DCAs), used as precursors of polyamides, polyesters, perfumes, plasticizers, lubricants, and adhesives, from vegetable oil has continuously garnered interest. Although the yeast Candida tropicalis has been used as a host for DCA production, additional strains are continually investigated to meet productivity thresholds and industrial needs. In this regard, the yeast Wickerhamiella sorbophila, a potential candidate strain, has been screened. However, the lack of genetic and physiological information for this uncommon strain is an obstacle that merits further research. To overcome this limitation, we attempted to develop a method to facilitate genetic recombination in this strain and produce high amounts of DCAs from methyl laurate using engineered W. sorbophila. RESULTS In the current study, we first developed efficient genetic engineering tools for the industrial application of W. sorbophila. To increase homologous recombination (HR) efficiency during transformation, the cell cycle of the yeast was synchronized to the S/G2 phase using hydroxyurea. The HR efficiency at POX1 and POX2 loci increased from 56.3% and 41.7%, respectively, to 97.9% in both cases. The original HR efficiency at URA3 and ADE2 loci was nearly 0% during the early stationary and logarithmic phases of growth, and increased to 4.8% and 25.6%, respectively. We used the developed tools to construct W. sorbophila UHP4, in which β-oxidation was completely blocked. The strain produced 92.5 g/l of dodecanedioic acid (DDDA) from methyl laurate over 126 h in 5-l fed-batch fermentation, with a productivity of 0.83 g/l/h. CONCLUSIONS Wickerhamiella sorbophila UHP4 produced more DDDA methyl laurate than C. tropicalis. Hence, we demonstrated that W. sorbophila is a powerful microbial platform for vegetable oil-based DCA production. In addition, by using the developed genetic engineering tools, this emerging yeast could be used for the production of a variety of fatty acid derivatives, such as fatty alcohols, fatty aldehydes, and ω-hydroxy fatty acids.
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Affiliation(s)
- Heeseok Lee
- Biotechnology Process Engineering Center, Korean Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116 Republic of Korea
- Department of Bioprocess Engineering, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113 Republic of Korea
| | - Changpyo Han
- Biotechnology Process Engineering Center, Korean Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116 Republic of Korea
| | - Hyeok-Won Lee
- Biotechnology Process Engineering Center, Korean Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116 Republic of Korea
| | - Gyuyeon Park
- Biotechnology Process Engineering Center, Korean Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116 Republic of Korea
- Department of Bioprocess Engineering, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113 Republic of Korea
| | - Wooyoung Jeon
- Biotechnology Process Engineering Center, Korean Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116 Republic of Korea
| | - Jungoh Ahn
- Biotechnology Process Engineering Center, Korean Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116 Republic of Korea
| | - Hongweon Lee
- Biotechnology Process Engineering Center, Korean Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116 Republic of Korea
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12
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Brandt SC, Ellinger B, van Nguyen T, Thi QD, van Nguyen G, Baschien C, Yurkov A, Hahnke RL, Schäfer W, Gand M. A unique fungal strain collection from Vietnam characterized for high performance degraders of bioecological important biopolymers and lipids. PLoS One 2018; 13:e0202695. [PMID: 30161149 PMCID: PMC6117010 DOI: 10.1371/journal.pone.0202695] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/07/2018] [Indexed: 11/18/2022] Open
Abstract
Fungal strains are abundantly used throughout all areas of biotechnology and many of them are adapted to degrade complex biopolymers like chitin or lignocellulose. We therefore assembled a collection of 295 fungi from nine different habitats in Vietnam, known for its rich biodiversity, and investigated their cellulase, chitinase, xylanase and lipase activity. The collection consists of 70 isolates from wood, 55 from soil, 44 from rice straw, 3 found on fruits, 24 from oil environments (butchery), 12 from hot springs, 47 from insects as well as 27 from shrimp shells and 13 strains from crab shells. These strains were cultivated and selected by growth differences to enrich phenotypes, resulting in 211 visually different fungi. DNA isolation of 183 isolates and phylogenetic analysis was performed and 164 species were identified. All were subjected to enzyme activity assays, yielding high activities for every investigated enzyme set. In general, enzyme activity corresponded with the environment of which the strain was isolated from. Therefore, highest cellulase activity strains were isolated from wood substrates, rice straw and soil and similar substrate effects were observed for chitinase and lipase activity. Xylanase activity was similarly distributed as cellulase activity, but substantial activity was also found from fungi isolated from insects and shrimp shells. Seven strains displayed significant activities against three of the four tested substrates, while three degraded all four investigated carbon sources. The collection will be an important source for further studies. Therefore representative strains were made available to the scientific community and deposited in the public collection of the Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Braunschweig.
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Affiliation(s)
- Sophie C. Brandt
- Department of Molecular Phytopathology, University Hamburg, Hamburg, Germany
| | - Bernhard Ellinger
- Department ScreeningPort, Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Hamburg, Germany
| | - Thuat van Nguyen
- Department of Molecular Phytopathology, University Hamburg, Hamburg, Germany
| | - Quyen Dinh Thi
- Institue of Biotechnology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Giang van Nguyen
- Faculty of Biotechnology, Vietnam National University of Agriculture, Trâu Quỳ, Gia Lâm, Hanoi, Vietnam
| | - Christiane Baschien
- Leibniz Institute DSMZ—German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Andrey Yurkov
- Leibniz Institute DSMZ—German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Richard L. Hahnke
- Leibniz Institute DSMZ—German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Wilhelm Schäfer
- Department of Molecular Phytopathology, University Hamburg, Hamburg, Germany
| | - Martin Gand
- Department of Molecular Phytopathology, University Hamburg, Hamburg, Germany
- * E-mail:
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Nagy-Győr L, Abaházi E, Bódai V, Sátorhelyi P, Erdélyi B, Balogh-Weiser D, Paizs C, Hornyánszky G, Poppe L. Co-immobilized Whole Cells with ω-Transaminase and Ketoreductase Activities for Continuous-Flow Cascade Reactions. Chembiochem 2018; 19:1845-1848. [PMID: 29944204 DOI: 10.1002/cbic.201800286] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Indexed: 01/29/2023]
Abstract
An improved sol-gel process involving the use of hollow silica microspheres as a supporting additive was applied for the co-immobilization of whole cells of Escherichia coli with Chromobacterium violaceum ω-transaminase activity and Lodderomyces elongisporus with ketoreductase activity. The co-immobilized cells with two different biocatalytic activities could perform a cascade of reactions to convert racemic 4-phenylbutan-2-amine or heptan-2-amine into a nearly equimolar mixture of the corresponding enantiomerically pure R amine and S alcohol even in continuous-flow mode. The novel co-immobilized whole-cell system proved to be an easy-to-store and durable biocatalyst.
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Affiliation(s)
- László Nagy-Győr
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary
| | - Emese Abaházi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary
| | - Viktória Bódai
- Fermentia Microbiological Ltd., Berlini út 47-49, 1045, Budapest, Hungary
| | - Péter Sátorhelyi
- Fermentia Microbiological Ltd., Berlini út 47-49, 1045, Budapest, Hungary
| | - Balázs Erdélyi
- Fermentia Microbiological Ltd., Berlini út 47-49, 1045, Budapest, Hungary
| | - Diána Balogh-Weiser
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary.,SynBiocat Ltd, Szilasilget u 3, 1172, Budapest, Hungary
| | - Csaba Paizs
- Biocatalysis and Biotransformation Research Centre, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University of Cluj-Napoca, Arany János Str. 11, 400028, Cluj-Napoca, Romania
| | - Gábor Hornyánszky
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary.,SynBiocat Ltd, Szilasilget u 3, 1172, Budapest, Hungary
| | - László Poppe
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary.,SynBiocat Ltd, Szilasilget u 3, 1172, Budapest, Hungary.,Biocatalysis and Biotransformation Research Centre, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University of Cluj-Napoca, Arany János Str. 11, 400028, Cluj-Napoca, Romania
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14
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Chavan AS, Kharat AS, Bhosle MR, Mane RA. Baker’s yeast catalyzed one-pot synthesis of bioactive 2-[benzylidene(or pyrazol-4-ylmethylene)hydrazono]-1,3-thiazolidin-4-one-5-yl-acetic acids. HETEROCYCL COMMUN 2018. [DOI: 10.1515/hc-2017-0130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
An efficient and simple one-pot protocol has been developed for synthesis of substituted derivatives of 2-hydrazono-4-thiazolidinone-5-acetic acids 4a–j and 6a–g by cyclocondensation of aryl/pyrazolyl aldehyde, thiosemicarbazide and maleic anhydride in acetonitrile in the presence of readily available whole cell biocatalyst, baker’s yeast (Saccharomyces cerevisiae). The reaction is enhanced by ultrasonication.
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15
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Queiroz M, Pinheiro L, Sutili F, de Souza P, Seldin L, Muzitano M, de Souza R, Guimarães D, Leal I. Enantioselective biotransformation of sterically hindered amine substrates by the fungus
Stemphylium lycopersici. J Appl Microbiol 2018; 124:1107-1121. [DOI: 10.1111/jam.13684] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 12/01/2017] [Accepted: 12/11/2017] [Indexed: 01/09/2023]
Affiliation(s)
- M.S.R. Queiroz
- Laboratório de Produtos Naturais e Ensaios Biológicos (LaProNEB) Faculdade de Farmácia DPNA, Cidade Universitária Rio de Janeiro RJ Brazil
| | - L.Z. Pinheiro
- Laboratório de Produtos Naturais e Ensaios Biológicos (LaProNEB) Faculdade de Farmácia DPNA, Cidade Universitária Rio de Janeiro RJ Brazil
| | - F.K. Sutili
- Departamento de Engenharia de Bioprocessos e Biotecnologia Unesp‐Universidade Estadual Paulista ‐ Campus Botucatu Botucatu SP Brazil
| | - P.M. de Souza
- Laboratório de Genética Microbiana CCS Instituto de Microbiologia UFRJ, Cidade Universitária Rio de Janeiro RJ Brazil
| | - L. Seldin
- Laboratório de Genética Microbiana CCS Instituto de Microbiologia UFRJ, Cidade Universitária Rio de Janeiro RJ Brazil
| | - M.F. Muzitano
- Laboratório de Produtos Bioativos (LPBio) Curso de Farmácia Pólo Novo Cavaleiro‐ IMCT UFRJ‐Macaé Macaé RJ Brazil
| | - R.O.M.A. de Souza
- Laboratório de Biocatálise e Síntese Orgânica (BOSS Group) IQ Centro de Tecnologia UFRJ‐ Cidade Universitária Rio de Janeiro Brazil
| | - D.O. Guimarães
- Laboratório de Produtos Bioativos (LPBio) Curso de Farmácia Pólo Novo Cavaleiro‐ IMCT UFRJ‐Macaé Macaé RJ Brazil
| | - I.C.R. Leal
- Laboratório de Produtos Naturais e Ensaios Biológicos (LaProNEB) Faculdade de Farmácia DPNA, Cidade Universitária Rio de Janeiro RJ Brazil
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16
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Abstract
Biocatalytic processes are increasingly playing a key role in the development of sustainable asymmetric syntheses, which are central to pharmaceutical companies for the production of chiral enantiopure drugs. This work describes a simple and economically viable chemoenzymatic process for the production of (S)-rivastigmine, which is an important drug for the treatment of mild to moderate dementia of the Alzheimer’s type. The described protocol involves the R-regioselective bioreduction of an aromatic ketone by Lactobacillus reuteri DSM 20016 whole cells in phosphate buffered saline (PBS) (37 °C, 24 h) as a key step. Biocatalytic performance of baker’s yeast whole cells in water and in aqueous eutectic mixtures have been evaluated and discussed as well. The route is scalable, environmentally friendly, and the target drug is obtained via four steps in overall 78% yield and 98% ee.
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17
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Tomàs-Gamisans M, Ferrer P, Albiol J. Fine-tuning the P. pastoris iMT1026 genome-scale metabolic model for improved prediction of growth on methanol or glycerol as sole carbon sources. Microb Biotechnol 2017; 11:224-237. [PMID: 29160039 PMCID: PMC5743807 DOI: 10.1111/1751-7915.12871] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 07/28/2017] [Accepted: 08/25/2017] [Indexed: 11/30/2022] Open
Abstract
The methylotrophic yeast Pichia pastoris (Komagataella spp.) is widely used as cell factory for recombinant protein production. In the past recent years, important breakthroughs in the systems-level quantitative analysis of its physiology have been achieved. This wealth of information has allowed the development of genome-scale metabolic models, which make new approaches possible for host cell and bioprocess engineering. Nevertheless, the predictive accuracy of the previous consensus model required to be upgraded and validated with new experimental data sets for P. pastoris growing on glycerol or methanol as sole carbon sources, two of the most relevant substrates for this cell factory. In this study, we have characterized P. pastoris growing in chemostat cultures using glycerol or methanol as sole carbon sources over a wide range of growth rates, thereby providing physiological data on the effect of growth rate and culture conditions on biomass macromolecular and elemental composition. In addition, these data sets were used to improve the performance of the P. pastoris consensus genomic-scale metabolic model iMT1026. Thereupon, new experimentally determined bounds, including the representation of biomass composition for these growth conditions, have been incorporated. As a result, here, we present version 3 (v3.0) of the consensus P. pastoris genome-scale metabolic model as an update of the iMT1026 model. The v3.0 model was validated for growth on glycerol and methanol as sole carbon sources, demonstrating improved prediction capabilities over an extended substrate range including two biotechnologically relevant carbon sources.
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Affiliation(s)
- Màrius Tomàs-Gamisans
- Department of Chemical Biological and Environmental Engineering, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - Pau Ferrer
- Department of Chemical Biological and Environmental Engineering, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - Joan Albiol
- Department of Chemical Biological and Environmental Engineering, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
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18
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Behrouz S, Soltani Rad MN, Piltan MA, Doroodmand MM. Chitosan-Silica Sulfate Nano Hybrid as a Novel and Highly Proficient Heterogeneous Nano Catalyst for Regioselective Ring Opening of Epoxides via
Carboxylic Acids. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Somayeh Behrouz
- Medicinal Chemistry Research Laboratory; Department of Chemistry; Shiraz University of Technology; Shiraz 71555-313 Iran
| | - Mohammad Navid Soltani Rad
- Medicinal Chemistry Research Laboratory; Department of Chemistry; Shiraz University of Technology; Shiraz 71555-313 Iran
| | - Mohammad Amin Piltan
- Medicinal Chemistry Research Laboratory; Department of Chemistry; Shiraz University of Technology; Shiraz 71555-313 Iran
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19
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Lee H, Sugiharto YEC, Lee S, Park G, Han C, Jang H, Jeon W, Park H, Ahn J, Kang K, Lee H. Characterization of the newly isolated ω-oxidizing yeast Candida sorbophila DS02 and its potential applications in long-chain dicarboxylic acid production. Appl Microbiol Biotechnol 2017; 101:6333-6342. [PMID: 28589225 DOI: 10.1007/s00253-017-8321-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/18/2017] [Accepted: 04/29/2017] [Indexed: 12/13/2022]
Abstract
α, ω-Dicarboxylic acids (DCAs) are multipurpose chemicals widely used in polymers, perfumes, plasticizers, lubricants, and adhesives. The biotransformation of DCAs from alkanes and fatty acids by microorganisms has attracted recent interest, since synthesis via chemical oxidation causes problems in terms of the environment and safety. We isolated an ω-oxidizing yeast from a wastewater disposal facility of a petrochemical factory by chemostat enrichment culture. The haploid strain identified as Candida sorbophila DS02 grew on glucose and dodecane, exhibiting greater cell shrinkage on the latter. In flask cultures with mixed alkanes (C10-16) and fatty acid methyl esters (C10-16), DS02 used mixed alkanes simultaneously unlike Candida tropicalis and Yarrowia lipolytica and showed high substrate resistance. In flask cultures with acrylic acid-a known inhibitor of β-oxidation-DS02 produced 0.28 g/l dodecanedioic acid (DDDA) from dodecane, similar to wild-type C. tropicalis ATCC 20336. In fed-batch fermentation, DS02 produced 9.87 g/l DDDA, which was 5.7-fold higher than wild-type C. tropicalis. These results suggest that C. sorbophila strain DS02 has potential applications for the large-scale production of DCA.
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Affiliation(s)
- Heeseok Lee
- Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
- Biotechnology Process Engineering Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Yohanes Eko Chandra Sugiharto
- Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
- Biotechnology Process Engineering Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Seunghoon Lee
- R&D Center, Lotte Chemical Corporation, 115 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34110, Republic of Korea
| | - Gyuyeon Park
- Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
- Biotechnology Process Engineering Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Changpyo Han
- Biotechnology Process Engineering Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Hyeran Jang
- R&D Center, Lotte Chemical Corporation, 115 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34110, Republic of Korea
| | - Wooyoung Jeon
- Biotechnology Process Engineering Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Heejoon Park
- R&D Center, Lotte Chemical Corporation, 115 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34110, Republic of Korea
| | - Jungoh Ahn
- Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
- Biotechnology Process Engineering Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Kyungbo Kang
- R&D Center, Lotte Chemical Corporation, 115 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34110, Republic of Korea
| | - Hongwoen Lee
- Department of Biosystems and Bioengineering, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea.
- Biotechnology Process Engineering Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea.
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20
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Davis D, Doloman A, Podgorski GJ, Vargis E, Flann NS. Exploiting Self-organization in Bioengineered Systems: A Computational Approach. Front Bioeng Biotechnol 2017; 5:27. [PMID: 28503548 PMCID: PMC5408088 DOI: 10.3389/fbioe.2017.00027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 04/03/2017] [Indexed: 11/13/2022] Open
Abstract
The productivity of bioengineered cell factories is limited by inefficiencies in nutrient delivery and waste and product removal. Current solution approaches explore changes in the physical configurations of the bioreactors. This work investigates the possibilities of exploiting self-organizing vascular networks to support producer cells within the factory. A computational model simulates de novo vascular development of endothelial-like cells and the resultant network functioning to deliver nutrients and extract product and waste from the cell culture. Microbial factories with vascular networks are evaluated for their scalability, robustness, and productivity compared to the cell factories without a vascular network. Initial studies demonstrate that at least an order of magnitude increase in production is possible, the system can be scaled up, and the self-organization of an efficient vascular network is robust. The work suggests that bioengineered multicellularity may offer efficiency improvements difficult to achieve with physical engineering approaches.
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Affiliation(s)
- Delin Davis
- Computer Science Department, Utah State University, Logan, UT, USA
| | - Anna Doloman
- Department of Biological Engineering, Utah State University, Logan, UT, USA
| | | | - Elizabeth Vargis
- Department of Biological Engineering, Utah State University, Logan, UT, USA
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21
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Lee SQE, Tan TS, Kawamukai M, Chen ES. Cellular factories for coenzyme Q 10 production. Microb Cell Fact 2017; 16:39. [PMID: 28253886 PMCID: PMC5335738 DOI: 10.1186/s12934-017-0646-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 02/10/2017] [Indexed: 04/20/2023] Open
Abstract
Coenzyme Q10 (CoQ10), a benzoquinone present in most organisms, plays an important role in the electron-transport chain, and its deficiency is associated with various neuropathies and muscular disorders. CoQ10 is the only lipid-soluble antioxidant found in humans, and for this, it is gaining popularity in the cosmetic and healthcare industries. To meet the growing demand for CoQ10, there has been considerable interest in ways to enhance its production, the most effective of which remains microbial fermentation. Previous attempts to increase CoQ10 production to an industrial scale have thus far conformed to the strategies used in typical metabolic engineering endeavors. However, the emergence of new tools in the expanding field of synthetic biology has provided a suite of possibilities that extend beyond the traditional modes of metabolic engineering. In this review, we cover the various strategies currently undertaken to upscale CoQ10 production, and discuss some of the potential novel areas for future research.
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Affiliation(s)
- Sean Qiu En Lee
- Department of Biochemistry, National University of Singapore, Singapore, Singapore
| | - Tsu Soo Tan
- School of Chemical & Life Sciences, Nanyang Polytechnic, Singapore, Singapore
| | - Makoto Kawamukai
- Faculty of Life and Environmental Science, Shimane University, Matsue, 690-8504, Japan
| | - Ee Sin Chen
- Department of Biochemistry, National University of Singapore, Singapore, Singapore. .,National University Health System (NUHS), Singapore, Singapore. .,NUS Synthetic Biology for Clinical and Technological Innovation (SynCTI), Life Sciences Institute, National University of Singapore, Singapore, Singapore. .,NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, Singapore.
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22
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de Carvalho CCCR. Whole cell biocatalysts: essential workers from Nature to the industry. Microb Biotechnol 2017; 10:250-263. [PMID: 27145540 PMCID: PMC5328830 DOI: 10.1111/1751-7915.12363] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/28/2016] [Accepted: 03/31/2016] [Indexed: 11/30/2022] Open
Abstract
Microorganisms have been exposed to a myriad of substrates and environmental conditions throughout evolution resulting in countless metabolites and enzymatic activities. Although mankind have been using these properties for centuries, we have only recently learned to control their production, to develop new biocatalysts with high stability and productivity and to improve their yields under new operational conditions. However, microbial cells still provide the best known environment for enzymes, preventing conformational changes in the protein structure in non-conventional medium and under harsh reaction conditions, while being able to efficiently regenerate necessary cofactors and to carry out cascades of reactions. Besides, a still unknown microbe is probably already producing a compound that will cure cancer, Alzeihmer's disease or kill the most resistant pathogen. In this review, the latest developments in screening desirable activities and improving production yields are discussed.
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Affiliation(s)
- Carla C. C. R. de Carvalho
- iBB‐Institute for Bioengineering and BiosciencesDepartment of BioengineeringInstituto Superior TécnicoUniversidade de LisboaAv. Rovisco PaisLisbon1049‐001Portugal
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23
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Chate AV, Sukale SB, Ugale RS, Gill CH. Baker’s yeast: An efficient, green, and reusable biocatalyst for the one-pot synthesis of biologically important N-substituted decahydroacridine-1,8-dione derivatives. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2016.1266501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Asha V. Chate
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Shital B. Sukale
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Reshma S. Ugale
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Charansingh H. Gill
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
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24
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Bódai V, Nagy-Győr L, Örkényi R, Molnár Z, Kohári S, Erdélyi B, Nagymáté Z, Romsics C, Paizs C, Poppe L, Hornyánszky G. Wickerhamomyces subpelliculosus as whole-cell biocatalyst for stereoselective bioreduction of ketones. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Tong X, Barberi TT, Botting CH, Sharma SV, Simmons MJH, Overton TW, Goss RJM. Rapid enzyme regeneration results in the striking catalytic longevity of an engineered, single species, biocatalytic biofilm. Microb Cell Fact 2016; 15:180. [PMID: 27769259 PMCID: PMC5073922 DOI: 10.1186/s12934-016-0579-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 10/14/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Engineering of single-species biofilms for enzymatic generation of fine chemicals is attractive. We have recently demonstrated the utility of an engineered Escherichia coli biofilm as a platform for synthesis of 5-halotryptophan. E. coli PHL644, expressing a recombinant tryptophan synthase, was employed to generate a biofilm. Its rapid deposition, and instigation of biofilm formation, was enforced by employing a spin-down method. The biofilm presents a large three-dimensional surface area, excellent for biocatalysis. The catalytic longevity of the engineered biofilm is striking, and we had postulated that this was likely to largely result from protection conferred to recombinant enzymes by biofilm's extracellular matrix. SILAC (stable isotopic labelled amino acids in cell cultures), and in particular dynamic SILAC, in which pulses of different isotopically labelled amino acids are administered to cells over a time course, has been used to follow the fate of proteins. To explore within our spin coated biofilm, whether the recombinant enzyme's longevity might be in part due to its regeneration, we introduced pulses of isotopically labelled lysine and phenylalanine into medium overlaying the biofilm and followed their incorporation over the course of biofilm development. RESULTS Through SILAC analysis, we reveal that constant and complete regeneration of recombinant enzymes occurs within spin coated biofilms. The striking catalytic longevity within the biofilm results from more than just simple protection of active enzyme by the biofilm and its associated extracellular matrix. The replenishment of recombinant enzyme is likely to contribute significantly to the catalytic longevity observed for the engineered biofilm system. CONCLUSIONS Here we provide the first evidence of a recombinant enzyme's regeneration in an engineered biofilm. The recombinant enzyme was constantly replenished over time as evidenced by dynamic SILAC, which suggests that the engineered E. coli biofilms are highly metabolically active, having a not inconsiderable energetic demand. The constant renewal of recombinant enzyme highlights the attractive possibility of utilising this biofilm system as a dynamic platform into which enzymes of interest can be introduced in a "plug-and-play" fashion and potentially be controlled through promoter switching for production of a series of desired fine chemicals.
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Affiliation(s)
- Xiaoxue Tong
- School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.,Biomedical Sciences Research Complex, University of St. Andrews, St. Andrews, KY16 9ST, UK
| | - Tania Triscari Barberi
- School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.,Biomedical Sciences Research Complex, University of St. Andrews, St. Andrews, KY16 9ST, UK
| | - Catherine H Botting
- Biomedical Sciences Research Complex, University of St. Andrews, St. Andrews, KY16 9ST, UK
| | - Sunil V Sharma
- School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.,Biomedical Sciences Research Complex, University of St. Andrews, St. Andrews, KY16 9ST, UK
| | - Mark J H Simmons
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, B152TT, UK
| | - Tim W Overton
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, B152TT, UK
| | - Rebecca J M Goss
- School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK. .,Biomedical Sciences Research Complex, University of St. Andrews, St. Andrews, KY16 9ST, UK.
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26
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Durairaj P, Hur JS, Yun H. Versatile biocatalysis of fungal cytochrome P450 monooxygenases. Microb Cell Fact 2016; 15:125. [PMID: 27431996 PMCID: PMC4950769 DOI: 10.1186/s12934-016-0523-6] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 07/10/2016] [Indexed: 11/19/2022] Open
Abstract
Cytochrome P450 (CYP) monooxygenases, the nature’s most versatile biological catalysts have unique ability to catalyse regio-, chemo-, and stereospecific oxidation of a wide range of substrates under mild reaction conditions, thereby addressing a significant challenge in chemocatalysis. Though CYP enzymes are ubiquitous in all biological kingdoms, the divergence of CYPs in fungal kingdom is manifold. The CYP enzymes play pivotal roles in various fungal metabolisms starting from housekeeping biochemical reactions, detoxification of chemicals, and adaptation to hostile surroundings. Considering the versatile catalytic potentials, fungal CYPs has gained wide range of attraction among researchers and various remarkable strategies have been accomplished to enhance their biocatalytic properties. Numerous fungal CYPs with multispecialty features have been identified and the number of characterized fungal CYPs is constantly increasing. Literature reveals ample reviews on mammalian, plant and bacterial CYPs, however, modest reports on fungal CYPs urges a comprehensive review highlighting their novel catalytic potentials and functional significances. In this review, we focus on the diversification and functional diversity of fungal CYPs and recapitulate their unique and versatile biocatalytic properties. As such, this review emphasizes the crucial issues of fungal CYP systems, and the factors influencing efficient biocatalysis.
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Affiliation(s)
- Pradeepraj Durairaj
- Korean Lichen Research Institute, Sunchon National University, Suncheon, South Korea
| | - Jae-Seoun Hur
- Korean Lichen Research Institute, Sunchon National University, Suncheon, South Korea
| | - Hyungdon Yun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, South Korea.
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27
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Baker’s yeast as an efficient biocatalyst for regioselective 1,4-conjugate addition of indoles to nitroolefins in aqueous medium. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Cheap and environmentally sustainable stereoselective arylketones reduction by Lactobacillus reuteri whole cells. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2015.11.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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29
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Biocatalytic reduction of racemic 2-arenoxycycloalkanones by yeasts P. glucozyma and C. glabrata: one way of achieving chiral 2-arenoxycycloalcohols. Appl Microbiol Biotechnol 2016; 100:4865-73. [PMID: 26754816 DOI: 10.1007/s00253-015-7261-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/15/2015] [Accepted: 12/19/2015] [Indexed: 10/22/2022]
Abstract
Chiral β-aryloxy alcohols are interesting building blocks that form part of drugs like β adrenergic antagonists. Acquiring cyclic rigid analogs to obtain more selective drugs is interesting. Thus, we used whole cells of yeast strains Pichia glucozyma and Candida glabrata to catalyze the reduction of several 2-arenoxycycloalkanones to produce chiral 2-arenoxycycloalcohols with good/excellent enantioselectivity. In both cases, the alcohol configuration that resulted from the carbonyl group reduction was S. Yeast P. glucozyma allowed the conversion of both enantiomers of the starting material to produce 2-arenoxycycloalcohols with configuration (1S, 2R) and (1S, 2S). The reaction with C. glabrata nearly always allowed the kinetic resolution of the starting ketone, recovering 2-arenoxycycloalkanone with configuration S and (1S, 2R)-2-arenoxycycloalcohol.All the four possible stereoisomers of 2-phenoxycyclohexanol and the two enantiomers of 2-phenoxycyclohexanone were obtained by combining the biocatalyzed reaction with the oxidation/reduction of the chiral compounds with standard reagents. This is a simple approach for the synthesis of the rigid chiral moiety 2-arenoxycycloalcohols contained in putative β-blockers 2-arenoxycycloalkanepropanolamines.
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Mane A, Salokhe P, More P, Salunkhe R. An efficient practical chemo-enzymatic protocol for the synthesis of pyrazoles in aqueous medium at ambient temperature. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.05.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chen R, Deng J, Lin J, Yin X, Xie T, Yang S, Wei D. Assessing the stereoselectivity of carbonyl reductases toward the reduction of OPBE and docking analysis. Biotechnol Appl Biochem 2015; 63:465-70. [DOI: 10.1002/bab.1397] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 05/14/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Rong Chen
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
- Center for Biomedicine and Health; Division of Basical Medicine; Hangzhou Normal University; Hangzhou People's Republic of China
| | - Jian Deng
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
| | - Jinping Lin
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
| | - Xiaopu Yin
- Center for Biomedicine and Health; Division of Basical Medicine; Hangzhou Normal University; Hangzhou People's Republic of China
| | - Tian Xie
- Center for Biomedicine and Health; Division of Basical Medicine; Hangzhou Normal University; Hangzhou People's Republic of China
| | - Shengli Yang
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
| | - Dongzhi Wei
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
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Hussain A, Kangwa M, Abo-Elwafa AG, Fernandez-Lahore M. Influence of operational parameters on the fluid-side mass transfer resistance observed in a packed bed bioreactor. AMB Express 2015; 5:25. [PMID: 25977875 PMCID: PMC4416096 DOI: 10.1186/s13568-015-0111-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 02/26/2015] [Indexed: 12/30/2022] Open
Abstract
The influence of mass transfer on productivity as well as the performance of packed bed bioreactor was determined by varying a number of parameters; flow rate, glucose concentration and polymers (chitosan). Saccharomyces cerevisiae cells were immobilized in chitosan and non-chitosan coated alginate beads to demonstrate the effect on external mass transfer by substrate consumption time, lag phase and ethanol production. The results indicate that coating has a significant effect on the lag phase duration, being 30-40 min higher than non-coated beads. After lag phase, no significant change was observed in both types of beads on consumption of glucose with the same flow rate. It was observed that by increasing flow rates; lag phase and glucose consumption time decreased. The reason is due to the reduction of external mass transfer as a result of increase in flow rate as glucose is easily transported to and from the beads surface by diffusion. It is observed that chitosan acts as barrier for transfer of substrate and products, in and out of beads, at initial time of fermentation as it shows longer lag phase for chitosan coated beads than non-coated. Glucose consumption at low flow rate was lower as compared to higher flow rates. The optimum combination of parameters consisting of higher flow rates 30-90 ml/min and between 10 and 20 g/l of glucose was found for maximum production of ethanol.
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Durairaj P, Malla S, Nadarajan SP, Lee PG, Jung E, Park HH, Kim BG, Yun H. Fungal cytochrome P450 monooxygenases of Fusarium oxysporum for the synthesis of ω-hydroxy fatty acids in engineered Saccharomyces cerevisiae. Microb Cell Fact 2015; 14:45. [PMID: 25880760 PMCID: PMC4387584 DOI: 10.1186/s12934-015-0228-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 03/12/2015] [Indexed: 01/03/2023] Open
Abstract
Background Omega hydroxy fatty acids (ω-OHFAs) are multifunctional compounds that act as the basis for the production of various industrial products with broad commercial and pharmaceutical implications. However, the terminal oxygenation of saturated or unsaturated fatty acids for the synthesis of ω-OHFAs is intricate to accomplish through chemocatalysis, due to the selectivity and controlled reactivity in C-H oxygenation reactions. Cytochrome P450, the ubiquitous enzyme is capable of catalyzing the selective terminal omega hydroxylation naturally in biological kingdom. Results To gain a deep insight on the biochemical role of fungal P450s towards the production of omega hydroxy fatty acids, two cytochrome P450 monooxygenases from Fusarium oxysporum (FoCYP), FoCYP539A7 and FoCYP655C2; were identified, cloned, and heterologously expressed in Saccharomyces cerevisiae. For the efficient production of ω-OHFAs, the S. cerevisiae was engineered to disrupt the acyl-CoA oxidase enzyme and the β-oxidation pathway inactivated (ΔPox1) S. cerevisiae mutant was generated. To elucidate the significance of the interaction of redox mechanism, FoCYPs were reconstituted with the heterologous and homologous reductase systems - S. cerevisiae CPR (ScCPR) and F. oxysporum CPR (FoCPR). To further improve the yield, the effect of pH was analyzed and the homologous FoCYP-FoCPR system efficiently hydroxylated caprylic acid, capric acid and lauric acid into their respective ω-hydroxy fatty acids with 56%, 79% and 67% conversion. Furthermore, based on computational simulations, we identified the key residues (Asn106 of FoCYP539A7 and Arg235 of FoCYP655C2) responsible for the recognition of fatty acids and demonstrated the structural insights of the active site of FoCYPs. Conclusion Fungal CYP monooxygenases, FoCYP539A7 and FoCYP655C2 with its homologous redox partner, FoCPR constitutes a promising catalyst due to its high regio- and stereo-selectivity in the hydroxylation of fatty acids and in the substantial production of industrially valuable ω-hydroxy fatty acids. Electronic supplementary material The online version of this article (doi:10.1186/s12934-015-0228-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Sailesh Malla
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea. .,Current position: Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Copenhagen, Denmark.
| | | | - Pyung-Gang Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea.
| | - Eunok Jung
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea.
| | - Hyun Ho Park
- School of Biotechnology, Yeungnam University, Gyeongsan, South Korea.
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea.
| | - Hyungdon Yun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, South Korea.
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Ju XM, Wang DH, Zhang GC, Cao D, Wei GY. Efficient pullulan production by bioconversion using Aureobasidium pullulans as the whole-cell catalyst. Appl Microbiol Biotechnol 2014; 99:211-20. [DOI: 10.1007/s00253-014-6100-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 09/11/2014] [Accepted: 09/13/2014] [Indexed: 11/29/2022]
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Perpiñá C, Vinaixa J, Andreu C, del Olmo M. Development of new tolerant strains to hydrophilic and hydrophobic organic solvents by the yeast surface display methodology. Appl Microbiol Biotechnol 2014; 99:775-89. [PMID: 25267156 DOI: 10.1007/s00253-014-6048-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 08/13/2014] [Accepted: 08/21/2014] [Indexed: 11/29/2022]
Abstract
Yeast surface display is a research methodology based on anchoring functional proteins and peptides onto the surface of the cells of this eukaryotic organism. Its development has resulted in the construction of a good number of new whole-cell biocatalysts with diverse applications in biotechnology, pharmacy, and medicine. In this work, we describe the design of new yeast strains in which several proteins and peptides have been introduced at the N-terminal position of protein agglutinin Aga2p. In all cases, proteins were correctly expressed and displayed on the cell surface according to the western blot, fluorescence microscopy, and fluorescence-activated cell sorting (FACS) analyses. The introduction of a glycosylable, Ser/Thr-rich protein (S1) resulted in improved resistance to ethanol, nonane, and dimethyl sulfoxide (DMSO) stress. The protein with a very high hydrophobic content (S2d) proved to confer tolerance to acetonitrile, ethanol, nonane, salt, and sodium dodecyl sulfate (SDS). The introduction of five leucine residues at the N-terminal position of S1 and S2 resulted in similar or increased resistance to the above-mentioned stress conditions. The adverse effects described in a previous work, when these residues were introduced into the N-terminus of Aga2p, with no other protein acting as a spacer, were not observed. Indeed, these strains grew better in the presence of hydrophilic solvents such as acetonitrile and ethanol. The new strains reported in this work have biotechnological potentiality given their behavior under adverse conditions of interest for biocatalytic and industrial processes.
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Affiliation(s)
- C Perpiñá
- Departament de Bioquímica i Biologia Molecular, Facultat de Ciències Biològiques, Universitat de València, Dr. Moliner, 50, E-46100, Burjassot (València), Spain
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Potential of some yeast strains in the stereoselective synthesis of (R)-(-)-phenylacetylcarbinol and (S)-(+)-phenylacetylcarbinol and their reduced 1,2-dialcohol derivatives. Appl Microbiol Biotechnol 2014; 98:5901-13. [PMID: 24671162 DOI: 10.1007/s00253-014-5635-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 02/19/2014] [Accepted: 02/21/2014] [Indexed: 10/25/2022]
Abstract
Whole cells of different yeast species have been widely used for a number of asymmetric transformations. In the present study, the screening of several yeast strains revealed the utility of Debaryomyces etchellsii in acyloin condensation for (R)-(-)-phenylacetylcarbinol production. Some conditions for the efficient biotransformation of benzaldehyde and minimization in the production of by-products were explored: pH of the reaction medium, use of additives (ethanol or acetonitrile), temperature, time, and substrate concentration and dosing. The optimal conditions found allowed the transformation of up to 10 g/L of the starting material in reactions carried out at high scale. Furthermore, the yeast Kluyveromyces marxianus was seen to be a convenient biocatalyst to carry out the kinetic resolution by the bioreduction of racemic (+/-)-phenylacetylcarbinol, resulting in (S)-(+)-phenylacetylcarbinol with excellent stereoselectivity. Finally, the ketone reduction of both isolated stereoisomers (R and S) by D. etchellsii allowed the obtainment of two of the four diastereoisomers of 1-phenyl-1,2-propanediol. All these compounds are key precursors for the production of interesting pharmaceutical and chemical products.
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Vogl T, Thallinger GG, Zellnig G, Drew D, Cregg JM, Glieder A, Freigassner M. Towards improved membrane protein production in Pichia pastoris: general and specific transcriptional response to membrane protein overexpression. N Biotechnol 2014; 31:538-52. [PMID: 24594271 DOI: 10.1016/j.nbt.2014.02.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 02/20/2014] [Accepted: 02/23/2014] [Indexed: 01/13/2023]
Abstract
Membrane proteins are the largest group of human drug targets and are also used as biocatalysts. However, due to their complexity, efficient expression remains a bottleneck for high level production. In recent years, the methylotrophic yeast Pichia pastoris has emerged as one of the most commonly used expression systems for membrane protein production. Here, we have analysed the transcriptomes of P. pastoris strains producing different classes of membrane proteins (mitochondrial, ER/Golgi and plasma membrane localized) to understand the cellular response and to identify targets to engineer P. pastoris towards an improved chassis for membrane protein production. Microarray experiments revealed varying transcriptional responses depending on the enzymatic activity, subcellular localization and physiological role of the membrane proteins. While an alternative oxidase evoked primarily a response within the mitochondria, the overexpression of transporters entering the secretory pathway had a wide effect on lipid metabolism and induced the upregulation of the UPR (unfolded protein response) transcription factor Hac1p. Coexpression of P. pastoris endogenous HAC1 increased the levels of ER-resident membrane proteins 1.5- to 2.1-fold. Subsequent transcriptome analysis of HAC1 coexpression revealed an upregulation of the folding machinery correlating with an expansion of the ER membrane capacity, thus boosting membrane protein production. Hence, our study has helped to elucidate the cellular response of P. pastoris to the expression of different classes of membrane proteins and led specifically to new insights into the effect of PpHac1p on membrane proteins entering the secretory pathway.
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Affiliation(s)
- Thomas Vogl
- Institute for Molecular Biotechnology, Graz University of Technology, Petersgasse 14/2, 8010 Graz, Austria
| | - Gerhard G Thallinger
- Institute for Genomics and Bioinformatics, Graz University of Technology, Petersgasse 14/5, 8010 Graz, Austria; Omics Center Graz, Stiftingtalstrasse 24, 8036 Graz, Austria; Austrian Centre of Industrial Biotechnology (ACIB GmbH), Petersgasse 14/5, 8010 Graz, Austria
| | - Guenther Zellnig
- Institute of Plant Sciences, University of Graz, Schubertstrasse 51, 8010 Graz, Austria
| | - David Drew
- Division of Molecular Biosciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - James M Cregg
- Keck Graduate Institute of Applied Life Sciences, 535 Watson Drive, Claremont, CA 91711, USA
| | - Anton Glieder
- Austrian Centre of Industrial Biotechnology (ACIB GmbH), Petersgasse 14/5, 8010 Graz, Austria
| | - Maria Freigassner
- Institute for Molecular Biotechnology, Graz University of Technology, Petersgasse 14/2, 8010 Graz, Austria.
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Cheng H, Lv J, Wang H, Wang B, Li Z, Deng Z. Genetically engineered Pichia pastoris yeast for conversion of glucose to xylitol by a single-fermentation process. Appl Microbiol Biotechnol 2014; 98:3539-52. [PMID: 24419799 DOI: 10.1007/s00253-013-5501-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 12/10/2013] [Accepted: 12/24/2013] [Indexed: 12/22/2022]
Abstract
Xylitol is industrially synthesized by chemical reduction of D-xylose, which is more expensive than glucose. Thus, there is a growing interest in the production of xylitol from a readily available and much cheaper substrate, such as glucose. The commonly used yeast Pichia pastoris strain GS115 was shown to produce D-arabitol from glucose, and the derivative strain GS225 was obtained to produce twice amount of D-arabitol than GS115 by adaptive evolution during repetitive growth in hyperosmotic medium. We cloned the D-xylulose-forming D-arabitol dehydrogenase (DalD) gene from Klebsiella pneumoniae and the xylitol dehydrogenase (XDH) gene from Gluconobacter oxydans. Recombinant P. pastoris GS225 strains with the DalD gene only or with both DalD and XDH genes could produce xylitol from glucose in a single-fermentation process. Three-liter jar fermentation results showed that recombinant P. pastoris cells with both DalD and XDH converted glucose to xylitol with the highest yield of 0.078 g xylitol/g glucose and productivity of 0.29 g xylitol/L h. This was the first report to convert xylitol from glucose by the pathway of glucose-D-arabitol-D-xylulose-xylitol in a single process. The recombinant yeast could be used as a yeast cell factory and has the potential to produce xylitol from glucose.
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Affiliation(s)
- Hairong Cheng
- The State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, 200240, China,
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Rowan AS, Moody TS, Howard RM, Underwood TJ, Miskelly IR, He Y, Wang B. Preparative access to medicinal chemistry related chiral alcohols using carbonyl reductase technology. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.09.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Johnson EA. Biotechnology of non-Saccharomyces yeasts—the basidiomycetes. Appl Microbiol Biotechnol 2013; 97:7563-77. [DOI: 10.1007/s00253-013-5046-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 06/05/2013] [Accepted: 06/07/2013] [Indexed: 12/24/2022]
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Yeast arming by the Aga2p system: effect of growth conditions in galactose on the efficiency of the display and influence of expressing leucine-containing peptides. Appl Microbiol Biotechnol 2013; 97:9055-69. [PMID: 23868296 DOI: 10.1007/s00253-013-5086-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 06/24/2013] [Accepted: 06/25/2013] [Indexed: 10/26/2022]
Abstract
The amino or carboxy-terminal regions of certain cell wall proteins are capable of anchoring foreign proteins or peptides on the cell wall of the yeast Saccharomyces cerevisiae. This possibility has resulted in the development of a methodology known as yeast display which has powerful applications in biotechnology, pharmacy, and medicine. This work describes the results of experiments in which the agglutinin Aga2p protein is used as an anchor and several leucine-based peptides have been introduced into its N-terminal or C-terminal position. We found that the sequence of these peptides can affect plasmid stability, growth kinetics, and levels of the fusion protein displayed, and we analyzed how the incubation conditions influence these parameters. Besides, we show that the introduction of these small peptides can modify the properties of cell cover; in particular, fusing five or ten leucine residues to the Aga2p protein results in greater hydrophobicity of the cell wall and also in increased resistance to the presence of the organic solvents acetonitrile and ethanol and to high salt concentrations. The introduction of the RLRLL sequence also results in higher resistance to the exposure of yeast cells to NaCl stress.
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Saha M, Pal AK. Fermented Baker's Yeast: An Efficient Catalyst for the Synthesis of Pyran Derivatives in Water at Room Temperature. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2012.665559] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Saccharomyces cerevisiae catalyzed one pot synthesis of isoindolo[2,1-a]quinazoline performed under ultrasonication. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.01.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Xu G, Yu H, Xu J. Facile Access to Chiral Alcohols with Pharmaceutical Relevance Using a Ketoreductase Newly Mined fromPichia guilliermondii. CHINESE J CHEM 2013. [DOI: 10.1002/cjoc.201201119] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Liang J, Ning JC, Zhao H. Coordinated induction of multi-gene pathways in Saccharomyces cerevisiae. Nucleic Acids Res 2012; 41:e54. [PMID: 23262224 PMCID: PMC3581276 DOI: 10.1093/nar/gks1293] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Bacterial operons are nature’s tool for regulating and coordinating multi-gene expression in prokaryotes. They are also a gene architecture commonly used in the biosynthesis of many pharmaceutically important compounds and industrially useful chemicals. Despite being an important eukaryotic production host, Saccharomyces cerevisiae has never had such gene architecture. Here, we report the development of a system to assemble and regulate a multi-gene pathway in S. cerevisiae. Full pathways can be constructed using pre-made parts from a plasmid toolbox. Subsequently, through the use of a yeast strain containing a stably integrated gene switch, the assembled pathway can be regulated using a readily available and inexpensive compound—estradiol—with extremely high sensitivity (10 nM). To demonstrate the use of the system, we assembled the five-gene zeaxanthin biosynthetic pathway in a single step and showed the ligand-dependent coordinated expression of all five genes as well as the tightly regulated production of zeaxanthin. Compared with a previously reported constitutive zeaxanthin pathway, our inducible pathway was shown to have 50-fold higher production level.
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Affiliation(s)
- Jing Liang
- Department of Chemical and Biomolecular Engineering and Departments of Chemistry, Biochemistry, and Bioengineering, Center for Biophysics and Computational Biology, Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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Brenna E, Fronza G, Fuganti C, Gatti FG, Manfredi A, Parmeggiani F, Ronchi P. On the stereochemistry of the Baker's Yeast-mediated reduction of regioisomeric unsaturated aldehydes: Examples of enantioselectivity switch promoted by substrate-engineering. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2012.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Biochemical and molecular characterization of a thermostable chitosanase produced by the strain Paenibacillus sp. 1794 newly isolated from compost. Appl Microbiol Biotechnol 2012; 97:5801-13. [DOI: 10.1007/s00253-012-4483-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 09/25/2012] [Accepted: 09/29/2012] [Indexed: 12/12/2022]
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Kato H, Izumi Y, Hasunuma T, Matsuda F, Kondo A. Widely targeted metabolic profiling analysis of yeast central metabolites. J Biosci Bioeng 2012; 113:665-73. [DOI: 10.1016/j.jbiosc.2011.12.013] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 12/09/2011] [Accepted: 12/25/2011] [Indexed: 11/26/2022]
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