1
|
Horiguchi HK, Semba H, Yamada H, Tsuboi H, Bogaki T, Koda A, Kataoka K, Takagi M, Tsujino Y. Bilirubin oxidase expression and activity enhancement from Myrothecium verrucaria in Aspergillus species. J Biosci Bioeng 2024:S1389-1723(24)00165-8. [PMID: 38969547 DOI: 10.1016/j.jbiosc.2024.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 07/07/2024]
Abstract
We constructed a new Aspergillus expression vector (pSENSU2512nid) under the control of the enolase promoter with 12 tandem repeats of cis-acting elements (region III) and the heat shock protein 12 (Hsp12) 5' untranslated region (UTR). Bilirubin oxidase (EC: 1.3.3.5) from Myrothecium verrucaria, which catalyzes the oxidation of bilirubin to biliverdin, was overexpressed in Aspergillus oryzae and A. niger. The productivity was estimated to be approximately 1.2 g/L in the culture broth, which was approximately 6-fold higher than that of recombinant bilirubin oxidase (BOD) expressed in Pichia pastoris (Komagataella phaffii). BOD was purified using hydrophobic interaction chromatography, followed by ion exchange chromatography. The specific activity of the purified BOD against 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) substrate was 57.6 U/mg and 66.4 U/mg for A. oryzae and A. niger, respectively. l-Ascorbic acid (4 mM) addition and storage under deoxygenated conditions for 3-7 d increased the specific activity of these Aspergillus-expressed BODs approximately 2.3-fold (154.1 U/mg). The BOD specific activity was enhanced by incubation at higher temperature (30-50 °C). Further characterization of the enzyme catalytic efficiency revealed that the Km value remained unchanged, whereas the kcat value improved 3-fold. In conclusion, this high-level of BOD expression meets the requirements for industrial-level production. Additionally, we identified an effective method to enhance the low specific activity during expression, making it advantageous for industrial applications.
Collapse
Affiliation(s)
- Haruka Kado Horiguchi
- General Research Laboratory, Ozeki Corporation, 4-9 Imazu, Dezaike-Cho, Nishinomiya, Hyogo 663-8227, Japan; Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe 657-8501, Japan
| | - Hironori Semba
- General Research Laboratory, Ozeki Corporation, 4-9 Imazu, Dezaike-Cho, Nishinomiya, Hyogo 663-8227, Japan
| | - Hiroyuki Yamada
- General Research Laboratory, Ozeki Corporation, 4-9 Imazu, Dezaike-Cho, Nishinomiya, Hyogo 663-8227, Japan
| | - Hirokazu Tsuboi
- General Research Laboratory, Ozeki Corporation, 4-9 Imazu, Dezaike-Cho, Nishinomiya, Hyogo 663-8227, Japan
| | - Takayuki Bogaki
- General Research Laboratory, Ozeki Corporation, 4-9 Imazu, Dezaike-Cho, Nishinomiya, Hyogo 663-8227, Japan
| | - Akio Koda
- General Research Laboratory, Ozeki Corporation, 4-9 Imazu, Dezaike-Cho, Nishinomiya, Hyogo 663-8227, Japan
| | - Kunishige Kataoka
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Masahiro Takagi
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe 657-8501, Japan; School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Yoshio Tsujino
- General Research Laboratory, Ozeki Corporation, 4-9 Imazu, Dezaike-Cho, Nishinomiya, Hyogo 663-8227, Japan; Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe 657-8501, Japan; School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.
| |
Collapse
|
2
|
Wei X, Chen X, Chen L, Yan D, Wang WG, Matsuda Y. Heterologous Biosynthesis of Tetrahydroxanthone Dimers: Determination of Key Factors for Selective or Divergent Synthesis. JOURNAL OF NATURAL PRODUCTS 2021; 84:1544-1549. [PMID: 33891392 DOI: 10.1021/acs.jnatprod.1c00022] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Tetrahydroxanthone dimers are fungal products, among which secalonic acid D (1) is one of the most studied compounds because of its potent biological activity. Because the biosynthetic gene cluster of 1 has been previously identified, we sought to heterologously produce 1 in Aspergillus oryzae by expressing the relevant biosynthetic genes. However, our initial attempt of the total biosynthesis of 1 failed; instead, it produced four isomers of 1 due to the activity of an endogenous enzyme of A. oryzae. Subsequent overexpression of the Baeyer-Villiger monooxygenase, AacuH, which competes with the endogenous enzyme, altered the product profile and successfully generated 1. Characterization of the key biosynthetic enzymes revealed the surprising substrate promiscuity of the dimerizing enzyme, AacuE, and indicated that efficient synthesis of 1 requires highly selective preparation of the tetrahydroxanthone monomer, which is apparently controlled by AacuH. This study facilitates engineered biosynthesis of tetrahydroxanthone dimers both in a selective and divergent manner.
Collapse
Affiliation(s)
- Xingxing Wei
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
| | - Xiaoxuan Chen
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
| | - Lin Chen
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
| | - Dexiu Yan
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
| | - Wei-Guang Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650031, People's Republic of China
| | - Yudai Matsuda
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, People's Republic of China
| |
Collapse
|
3
|
Jin FJ, Hu S, Wang BT, Jin L. Advances in Genetic Engineering Technology and Its Application in the Industrial Fungus Aspergillus oryzae. Front Microbiol 2021; 12:644404. [PMID: 33708187 PMCID: PMC7940364 DOI: 10.3389/fmicb.2021.644404] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/05/2021] [Indexed: 12/19/2022] Open
Abstract
The filamentous fungus Aspergillus oryzae is an important strain in the traditional fermentation and food processing industries and is often used in the production of soy sauce, soybean paste, and liquor-making. In addition, A. oryzae has a strong capacity to secrete large amounts of hydrolytic enzymes; therefore, it has also been used in the enzyme industry as a cell factory for the production of numerous native and heterologous enzymes. However, the production and secretion of foreign proteins by A. oryzae are often limited by numerous bottlenecks that occur during transcription, translation, protein folding, translocation, degradation, transport, secretion, etc. The existence of these problems makes it difficult to achieve the desired target in the production of foreign proteins by A. oryzae. In recent years, with the decipherment of the whole genome sequence, basic research and genetic engineering technologies related to the production and utilization of A. oryzae have been well developed, such as the improvement of homologous recombination efficiency, application of selectable marker genes, development of large chromosome deletion technology, utilization of hyphal fusion techniques, and application of CRISPR/Cas9 genome editing systems. The development and establishment of these genetic engineering technologies provided a great deal of technical support for the industrial production and application of A. oryzae. This paper reviews the advances in basic research and genetic engineering technologies of the fermentation strain A. oryzae mentioned above to open up more effective ways and research space for the breeding of A. oryzae production strains in the future.
Collapse
Affiliation(s)
- Feng-Jie Jin
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Shuang Hu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Bao-Teng Wang
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Long Jin
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| |
Collapse
|
4
|
Umemura M, Kuriiwa K, Dao LV, Okuda T, Terai G. Promoter tools for further development of Aspergillus oryzae as a platform for fungal secondary metabolite production. Fungal Biol Biotechnol 2020; 7:3. [PMID: 32211196 PMCID: PMC7092444 DOI: 10.1186/s40694-020-00093-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 03/05/2020] [Indexed: 01/14/2023] Open
Abstract
Background The filamentous fungus Aspergillus oryzae is widely used for secondary metabolite production by heterologous expression; thus, a wide variety of promoter tools is necessary to broaden the application of this species. Here we built a procedure to survey A. flavus genes constitutively highly expressed in 83 transcriptome datasets obtained under various conditions affecting secondary metabolite production, to find promoters useful for heterologous expression of genes in A. oryzae. Results To test the ability of the promoters of the top 6 genes to induce production of a fungal secondary metabolite, ustiloxin B, we inserted the promoters before the start codon of ustR, which encodes the transcription factor of the gene cluster responsible for ustiloxin B biosynthesis, in A. oryzae. Four of the 6 promoters induced ustiloxin B production in all tested media (solid maize, liquid V8 and PDB media), and also ustR expression. Two of the 4 promoters were those of tef1 and gpdA, which are well characterized in A. oryzae and A. nidulans, respectively, whereas the other two, those of AFLA_030930 and AFLA_113120, are newly reported here and show activities comparable to that of the gpdA promoter with respect to induction of gene expression and ustiloxin B production. Conclusion We newly reported two sequences as promoter tools for secondary metabolite production in A. oryzae. Our results demonstrate that our simple strategy of surveying for constitutively highly expressed genes in large-scale transcriptome datasets is useful for finding promoter sequences that can be used as heterologous expression tools in A. oryzae.
Collapse
Affiliation(s)
- Maiko Umemura
- 1Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, 305-8566 Japan.,2Computational Bio Big Data Open Innovation Laboratory, AIST, Ibaraki, 305-8566 Japan
| | - Kaoru Kuriiwa
- 1Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, 305-8566 Japan.,3Department of Zoology, National Museum of Nature and Science, Ibaraki, 305-0005 Japan
| | - Linh Viet Dao
- 1Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, 305-8566 Japan.,5Present Address: Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583 Singapore
| | - Tetsuya Okuda
- 1Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, 305-8566 Japan
| | - Goro Terai
- 4Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, Chiba, 277-8561 Japan
| |
Collapse
|
5
|
Matsumoto S, Yamada H, Kunishige Y, Takenaka S, Nakazawa M, Ueda M, Sakamoto T. Identification of a novel Penicillium chrysogenum rhamnogalacturonan rhamnohydrolase and the first report of a rhamnogalacturonan rhamnohydrolase gene. Enzyme Microb Technol 2017; 98:76-85. [DOI: 10.1016/j.enzmictec.2016.12.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/04/2016] [Accepted: 12/26/2016] [Indexed: 01/29/2023]
|
6
|
|
7
|
Adachi D, Hama S, Nakashima K, Bogaki T, Ogino C, Kondo A. Production of biodiesel from plant oil hydrolysates using an Aspergillus oryzae whole-cell biocatalyst highly expressing Candida antarctica lipase B. BIORESOURCE TECHNOLOGY 2013; 135:410-416. [PMID: 22850174 DOI: 10.1016/j.biortech.2012.06.092] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 06/21/2012] [Accepted: 06/26/2012] [Indexed: 06/01/2023]
Abstract
For enzymatic biodiesel production from plant oil hydrolysates, an Aspergillus oryzae whole-cell biocatalyst that expresses Candida antarctica lipase B (r-CALB) with high esterification activity was developed. Each of soybean and palm oils was hydrolyzed using Candida rugosa lipase, and the resultant hydrolysates were subjected to esterification where immobilized r-CALB was used as a catalyst. In esterification, r-CALB afforded a methyl ester content of more than 90% after 6 h with the addition of 1.5 M equivalents of methanol. Favorably, stepwise additions of methanol and a little water were unnecessary for maintaining the lipase stability of r-CALB during esterification. During long-term esterification in a rotator, r-CALB can be recycled for 20 cycles without a significant loss of lipase activity, resulting in a methyl ester content of more than 90% even after the 20th batch. Therefore, the presented reaction system using r-CALB shows promise for biodiesel production from plant oil hydrolysates.
Collapse
Affiliation(s)
- Daisuke Adachi
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Kobe 657-8501, Japan
| | | | | | | | | | | |
Collapse
|
8
|
Tamayo-Ramos JA, Barends S, de Lange D, de Jel A, Verhaert R, de Graaff L. Enhanced production ofAspergillus nigerlaccase-like multicopper oxidases through mRNA optimization of the glucoamylase expression system. Biotechnol Bioeng 2012; 110:543-51. [DOI: 10.1002/bit.24723] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 08/14/2012] [Accepted: 08/17/2012] [Indexed: 02/03/2023]
|
9
|
Lavut A, Raveh D. Sequestration of highly expressed mRNAs in cytoplasmic granules, P-bodies, and stress granules enhances cell viability. PLoS Genet 2012; 8:e1002527. [PMID: 22383896 PMCID: PMC3285586 DOI: 10.1371/journal.pgen.1002527] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Accepted: 12/21/2011] [Indexed: 02/07/2023] Open
Abstract
Transcriptome analyses indicate that a core 10%–15% of the yeast genome is modulated by a variety of different stresses. However, not all the induced genes undergo translation, and null mutants of many induced genes do not show elevated sensitivity to the particular stress. Elucidation of the RNA lifecycle reveals accumulation of non-translating mRNAs in cytoplasmic granules, P-bodies, and stress granules for future regulation. P-bodies contain enzymes for mRNA degradation; under stress conditions mRNAs may be transferred to stress granules for storage and return to translation. Protein degradation by the ubiquitin-proteasome system is elevated by stress; and here we analyzed the steady state levels, decay, and subcellular localization of the mRNA of the gene encoding the F-box protein, UFO1, that is induced by stress. Using the MS2L mRNA reporter system UFO1 mRNA was observed in granules that colocalized with P-bodies and stress granules. These P-bodies stored diverse mRNAs. Granules of two mRNAs transported prior to translation, ASH1-MS2L and OXA1-MS2L, docked with P-bodies. HSP12 mRNA that gave rise to highly elevated protein levels was not observed in granules under these stress conditions. ecd3, pat1 double mutants that are defective in P-body formation were sensitive to mRNAs expressed ectopically from strong promoters. These highly expressed mRNAs showed elevated translation compared with wild-type cells, and the viability of the mutants was strongly reduced. ecd3, pat1 mutants also exhibited increased sensitivity to different stresses. Our interpretation is that sequestration of highly expressed mRNAs in P-bodies is essential for viability. Storage of mRNAs for future regulation may contribute to the discrepancy between the steady state levels of many stress-induced mRNAs and their proteins. Sorting of mRNAs for future translation or decay by individual cells could generate potentially different phenotypes in a genetically identical population and enhance its ability to withstand stress. 10%–15% of the yeast genome is modulated by stress; however, there is a discrepancy between the genes that are upregulated and the sensitivity of the null mutants of those genes to the stress. The question is: what happens to these highly expressed mRNAs? mRNAs have a complex lifecycle and non-translating mRNAs can be stored in cytoplasmic granules, processing P-bodies, and stress granules for decay or future translation, respectively. UFO1 encodes a component of the regulated protein degradation system, and its transcription is elevated by stress; however, the deletion mutants do not show enhanced sensitivity. UFO1 mRNA is stored in P-bodies and stress granules. Storage of mRNAs may contribute to the discrepancy between the steady state levels of stress-induced mRNAs and their proteins. To test this hypothesis, we expressed high levels of mRNA in cells unable to form P-bodies. We found that translation of these mRNAs was 3–8 fold higher than in wild-type cells. Furthermore high level expression of mRNA affected the viability of the mutants. The ability to store mRNAs for future translation or decay would generate different phenotypes in a genetically identical population and enhance its ability to withstand stress.
Collapse
Affiliation(s)
- Anna Lavut
- Department of Life Sciences, Ben Gurion University of the Negev, Beersheba, Israel
| | - Dina Raveh
- Department of Life Sciences, Ben Gurion University of the Negev, Beersheba, Israel
- * E-mail:
| |
Collapse
|
10
|
Adachi D, Hama S, Numata T, Nakashima K, Ogino C, Fukuda H, Kondo A. Development of an Aspergillus oryzae whole-cell biocatalyst coexpressing triglyceride and partial glyceride lipases for biodiesel production. BIORESOURCE TECHNOLOGY 2011; 102:6723-6729. [PMID: 21507622 DOI: 10.1016/j.biortech.2011.03.066] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2010] [Revised: 03/17/2011] [Accepted: 03/19/2011] [Indexed: 05/30/2023]
Abstract
An Aspergillus oryzae whole-cell biocatalyst which coexpresses Fusarium heterosporum lipase (FHL) and mono- and di-acylglycerol lipase B (mdlB) in the same cell has been developed to improve biodiesel production. By screening a number of transformants, the best strain was obtained when FHL gene was integrated into A. oryzae chromosome using sC selection marker while mdlB was integrated using niaD selection marker. The reaction system using the lipase-coexpressing whole-cells was found to be superior in biodiesel production to others such as lipase-mixing and two-step reactions, affording the highest reaction rate and the highest ME content (98%). Moreover, an ME content of more than 90% was maintained during 10 repeated batch cycles. The whole-cell biocatalyst developed in this work would be promising biocatalysts for efficient biodiesel production.
Collapse
Affiliation(s)
- Daisuke Adachi
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe 657-8501, Japan
| | | | | | | | | | | | | |
Collapse
|
11
|
Highly efficient biodiesel production by a whole-cell biocatalyst employing a system with high lipase expression in Aspergillus oryzae. Appl Microbiol Biotechnol 2011; 90:1171-7. [DOI: 10.1007/s00253-011-3186-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 02/09/2011] [Accepted: 02/12/2011] [Indexed: 10/18/2022]
|
12
|
Developing Aspergillus as a host for heterologous expression. Biotechnol Adv 2009; 27:53-75. [DOI: 10.1016/j.biotechadv.2008.09.001] [Citation(s) in RCA: 204] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2008] [Revised: 09/04/2008] [Accepted: 09/07/2008] [Indexed: 12/11/2022]
|