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Nishimiya Y, Morita Y, Wu C, Ohyama Y, Tochigi Y, Okuzawa T, Sakashita M, Asakawa A, Irie T, Ohmiya Y, Ohgiya S, Morita N. Molecular evolution of Cypridina noctiluca secretory luciferase for production of spectrum-shifted luminescence-emitting mutants and their application in nuclear receptor-reporter assays. Photochem Photobiol 2024; 100:573-586. [PMID: 37715991 DOI: 10.1111/php.13857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/18/2023]
Abstract
Luciferase is a popular enzyme used for biological analyses, such as reporter assays. In addition to a conventional reporter assay using a pair of firefly and Renilla luciferases, a simple multicolor reporter assay using multiple firefly or beetle luciferases emitting different color luminescence with a single substrate has been reported. Secretory luciferases have also been used for convenient sample preparation in reporter assays; however, reporter assay using secretory luciferase mutants that emit spectrum-shifted luminescence have not yet been reported. In this study, we generated blue- and red-shifted (-16 and 12 nm) luminescence-emitting Cypridina secretory luciferase (CLuc) mutants using multiple cycles of random and site-directed mutagenesis. Even for red-shifted CLuc mutant, which exhibited relatively low activity and stability, its enzymatic activity was sufficiently high for a luciferase assay (3.26 × 106 relative light unit/s), light emission was sufficiently prolonged (half-life is 3 min), and stability at 37°C was high. We independently determined the luminescence of these CLuc mutants using a luminometer with an optical filter. Finally, we replaced the commonly used reporters, firefly and Renilla luciferases used in a conventional nuclear receptor-reporter assay with these CLuc mutants and established a secretory luciferase-based single-substrate dual-color nuclear receptor-reporter assay.
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Affiliation(s)
- Yoshiyuki Nishimiya
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
| | - Yosuke Morita
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan
| | - Chun Wu
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Japan
| | - Yasushi Ohyama
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
| | - Yuki Tochigi
- Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Tsugumi Okuzawa
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
| | - Mami Sakashita
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
| | | | | | - Yoshihiro Ohmiya
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Japan
- Osaka Institute of Technology (OIT), Osaka, Japan
| | - Satoru Ohgiya
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan
- NOASTEC Foundation, Sapporo, Japan
| | - Naoki Morita
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
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Kikuta H, Aramaki T, Mabu S, Akada R, Hoshida H. The presence of an intron relieves gene repression caused by promoter-proximal four-bp specific sequences in yeast. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2023; 1866:194982. [PMID: 37659722 DOI: 10.1016/j.bbagrm.2023.194982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/24/2023] [Accepted: 08/24/2023] [Indexed: 09/04/2023]
Abstract
Introns can enhance gene expression in eukaryotic cells in a process called intron-mediated enhancement (IME). The levels of enhancement are affected not only by the intron sequence but also by coding sequences (CDSs). However, the parts of CDSs responsible for mediating IME have not yet been identified. In this study, we identified an IME-mediating sequence by analyzing three pairs of IME-sensitive and -insensitive CDSs in Saccharomyces cerevisiae. Expression of the CDSs yCLuc, yRoGLU1, and KmBGA1 was enhanced by the presence of an intron (i.e., they were IME sensitive), but the expression of each corresponding codon-changed CDS, which encoded the identical amino acid sequence, was not enhanced (i.e., they were IME insensitive). Interestingly, the IME-insensitive CDSs showed higher expression levels that were like intron-enhanced expression of IME-sensitive CDSs, suggesting that expression of IME-sensitive CDSs was repressed. A four-nucleotide sequence (TCTT) located in the promoter-proximal position of either the untranslated or coding region was found to be responsible for repression in IME-sensitive CDSs, and repression caused by the TCTT sequence was relieved by the presence of an intron. Further, it was found that the expression of intron-containing yeast-native genes, UBC4 and MPT5, was repressed by TCTT in the CDS but relieved by the introns. These results indicate that TCTT sequences in promoter-proximal positions repress gene expression and that introns play a role in relieving gene repression caused by sequences such as TCTT.
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Affiliation(s)
- Hiroki Kikuta
- Division of Applied Chemistry, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611, Japan
| | - Takahiro Aramaki
- Division of Applied Chemistry, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611, Japan
| | - Shingo Mabu
- Division of Electrical, Electronic and Information Engineering, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611, Japan
| | - Rinji Akada
- Division of Applied Chemistry, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611, Japan; Research Center for Thermotolerant Microbial Resources, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8315, Japan; Yamaguchi University Biomedical Engineering Center, 2-16-1 Tokiwadai, Ube 755-8611, Japan
| | - Hisashi Hoshida
- Division of Applied Chemistry, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611, Japan; Research Center for Thermotolerant Microbial Resources, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8315, Japan; Yamaguchi University Biomedical Engineering Center, 2-16-1 Tokiwadai, Ube 755-8611, Japan.
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3
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Selection of the methylotrophic yeast Ogataea minuta as a high-producing host for heterologous protein expression. J Biosci Bioeng 2023; 135:196-202. [PMID: 36702678 DOI: 10.1016/j.jbiosc.2022.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/28/2022] [Accepted: 12/11/2022] [Indexed: 01/26/2023]
Abstract
Three Ogataea minuta var. minuta strains have been deposited as NBRC 0975, NBRC 10402, and NBRC 10746 in the National Institute of Technology and Evaluation (NITE) Biological Resource Center (NBRC) collection. We investigated the ability to produce secretory proteins and several genotypic and phenotypic characteristics in order to select the best strain for heterologous protein expression. NBRC 10746 showed the best performance as evaluated by Cypridina noctiluca luciferase expression. Subsequently, clone #5-30 named tat06213, which was obtained by single-colony isolation from NBRC 10746, was established as a promising host for heterologous protein expression. To deepen our understanding of the characteristics of O.minuta var. minuta strains, sequence analysis of the D1/D2 domain of large subunit rRNA was conducted and the resulting phylogenetic tree derived from the D1/D2 domain showed that NBRC 10402 and NBRC 10746 were grouped into a different cluster far from NBRC 0975. Furthermore, a chromosome structure topology with electrophoretic karyotype and AOX1 loci analyzed by pulsed-field gel electrophoresis with Southern blotting showed different chromosome patterns and AOX1-hybridization loci among the strains. Additionally, the sequences of the promoter regions of the cloned AOX1 genes were not identical among the three strains. These findings might explain the differences in heterologous protein expression among the tested O. minuta var. minuta strains.
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Niwa K, Kubota H, Enomoto T, Ichino Y, Ohmiya Y. Quantitative Analysis of Bioluminescence Optical Signal. BIOSENSORS 2023; 13:223. [PMID: 36831989 PMCID: PMC9953788 DOI: 10.3390/bios13020223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Bioluminescence is light emission based on the luciferin-luciferase enzymatic reaction in living organisms. Optical signals from bioluminescence (BL) reactions are available for bioanalysis and bioreporters for gene expression, in vitro, in vivo, and ex vivo bioimaging, immunoassay, and other applications. Although there are numerous bioanalysis methods based on BL signal measurements, the BL signal is measured as a relative value, and not as an absolute value. Recently, some approaches have been established to completely quantify the BL signal, resulting in, for instance, the redetermination of the quantum yield of the BL reaction and counting the photon number of the BL signal at the single-cell level. Reliable and reproducible understanding of biological events in the bioanalysis and bioreporter fields can be achieved by means of standardized absolute optical signal measurements, which is described in an International Organization for Standardization (ISO) document.
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Affiliation(s)
- Kazuki Niwa
- National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba 305-8563, Japan
| | | | | | - Yoshiro Ichino
- National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba 305-8563, Japan
| | - Yoshihiro Ohmiya
- National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba 305-8563, Japan
- Osaka Institute of Technology (OIT), Osaka 535-8585, Japan
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5
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Triple gene expressions in yeast, Escherichia coli, and mammalian cells by transferring DNA fragments amplified from a mother yeast expression plasmid. J Biosci Bioeng 2022; 133:587-595. [DOI: 10.1016/j.jbiosc.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/18/2022] [Accepted: 03/04/2022] [Indexed: 11/22/2022]
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6
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Mitani Y, Yasuno R, Kihira K, Chung K, Mitsuda N, Kanie S, Tomioka A, Kaji H, Ohmiya Y. Host-Dependent Producibility of Recombinant Cypridina noctiluca Luciferase With Glycosylation Defects. Front Bioeng Biotechnol 2022; 10:774786. [PMID: 35198542 PMCID: PMC8859458 DOI: 10.3389/fbioe.2022.774786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 01/17/2022] [Indexed: 11/13/2022] Open
Abstract
Cypridina noctiluca luciferase (CLuc) is a secreted luminescent protein that reacts with its substrate (Cypridina luciferin) to emit light. CLuc is known to be a thermostable protein and has been used for various research applications, including in vivo imaging and high-throughput reporter assays. Previously, we produced a large amount of recombinant CLuc for crystallographic analysis. However, this recombinant protein did not crystallize, probably due to heterogeneous N-glycan modifications. In this study, we produced recombinant CLuc without glycan modifications by introducing mutations at the N-glycan modification residues using mammalian Expi293F cells, silkworms, and tobacco Bright Yellow-2 cells. Interestingly, recombinant CLuc production depended heavily on the expression hosts. Among these selected hosts, we found that Expi293F cells efficiently produced the recombinant mutant CLuc without significant effects on its luciferase activity. We confirmed the lack of N-glycan modifications for this mutant protein by mass spectrometry analysis but found slight O-glycan modifications that we estimated were about 2% of the ion chromatogram peak area for the detected peptide fragments. Moreover, by using CLuc deletion mutants during the investigation of O-glycan modifications, we identified amino acid residues important to the luciferase activity of CLuc. Our results provide invaluable information related to CLuc function and pave the way for its crystallographic analysis.
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Affiliation(s)
- Yasuo Mitani
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
- *Correspondence: Yasuo Mitani,
| | - Rie Yasuno
- Cellular and Molecular Biotechnology Research Institute, AIST, Tsukuba, Japan
| | | | - KwiMi Chung
- Bioproduction Research Institute, AIST, Tsukuba, Japan
| | | | - Shusei Kanie
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
| | - Azusa Tomioka
- Cellular and Molecular Biotechnology Research Institute, AIST, Tsukuba, Japan
| | - Hiroyuki Kaji
- Cellular and Molecular Biotechnology Research Institute, AIST, Tsukuba, Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute, AIST, Ikeda, Japan
- Osaka Institute of Technology (OIT), Osaka, Japan
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7
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Heintz VJ, Wang L, LaCount DJ. NanoLuc luciferase as a quantitative yeast two-hybrid reporter. FEMS Yeast Res 2021; 21:6481623. [PMID: 34940882 PMCID: PMC8755890 DOI: 10.1093/femsyr/foab069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/21/2021] [Indexed: 12/25/2022] Open
Abstract
The yeast two-hybrid (Y2H) assay is a powerful technique to identify protein-protein interactions. However, the auxotrophic markers that are the most common Y2H reporters take several days to yield data and require subjective assessment of semiquantitative data to identify interactions. Several reporters have been developed to overcome these disadvantages, but there is still a need for a Y2H reporter that is objective, fast and able to be performed with common laboratory equipment. In this report, we replaced the ADE2 reporter in BK100 with NanoLuc luciferase to yield BK100Nano. We developed an optimized assay to measure NanoLuc activity in 96-well plates and analyzed a set of 74 pairs identified in Y2H library screens, which revealed 44 positive interactions using an unbiased cutoff based on the mean luminescence of negative control samples. The same set was also tested for growth on Y2H selection medium via expression of the HIS3 reporter. We found 91% agreement between the two assays, with discrepancies attributed to weak interactions that displayed variable growth on Y2H medium. Overall, the new BK100Nano strain establishes a quantitative and convenient method to identify Y2H interactions and has potential to be applied to a high throughput manner.
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Affiliation(s)
- Veronica J Heintz
- Department of Medicinal Chemistry and Molecular Pharmacology, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA
- Purdue Institute of Inflammation, Immunology and Infectious Disease Purdue University, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Ling Wang
- Department of Medicinal Chemistry and Molecular Pharmacology, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA
- Purdue Institute of Inflammation, Immunology and Infectious Disease Purdue University, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA
| | - Douglas J LaCount
- Corresponding author: Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, DLR 442, 207 South Martin Jischke Drive, West Lafayette, IN 47907, USA. Tel: 765-496-7835; E-mail:
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8
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Hensley NM, Ellis EA, Leung NY, Coupart J, Mikhailovsky A, Taketa DA, Tessler M, Gruber DF, De Tomaso AW, Mitani Y, Rivers TJ, Gerrish GA, Torres E, Oakley TH. Selection, drift, and constraint in cypridinid luciferases and the diversification of bioluminescent signals in sea fireflies. Mol Ecol 2021; 30:1864-1879. [PMID: 33031624 DOI: 10.1111/mec.15673] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/09/2020] [Accepted: 09/18/2020] [Indexed: 02/07/2023]
Abstract
Understanding the genetic causes of evolutionary diversification is challenging because differences across species are complex, often involving many genes. However, cases where single or few genetic loci affect a trait that varies dramatically across a radiation of species provide tractable opportunities to understand the genetics of diversification. Here, we begin to explore how diversification of bioluminescent signals across species of cypridinid ostracods ("sea fireflies") was influenced by evolution of a single gene, cypridinid-luciferase. In addition to emission spectra ("colour") of bioluminescence from 21 cypridinid species, we report 13 new c-luciferase genes from de novo transcriptomes, including in vitro assays to confirm function of four of those genes. Our comparative analyses suggest some amino acid sites in c-luciferase evolved under episodic diversifying selection and may be associated with changes in both enzyme kinetics and colour, two enzymatic functions that directly impact the phenotype of bioluminescent signals. The analyses also suggest multiple other amino acid positions in c-luciferase evolved neutrally or under purifying selection, and may have impacted the variation of colour of bioluminescent signals across genera. Previous mutagenesis studies at candidate sites show epistatic interactions, which could constrain the evolution of c-luciferase function. This work provides important steps toward understanding the genetic basis of diversification of behavioural signals across multiple species, suggesting different evolutionary processes act at different times during a radiation of species. These results set the stage for additional mutagenesis studies that could explicitly link selection, drift, and constraint to the evolution of phenotypic diversification.
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Affiliation(s)
- Nicholai M Hensley
- Department of Ecology, Evolution, & Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Emily A Ellis
- Department of Ecology, Evolution, & Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Nicole Y Leung
- Neuroscience Research Institute, University of California, Santa Barbara, Santa Barbara, CA, USA
- Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - John Coupart
- Department of Ecology, Evolution, & Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Alexander Mikhailovsky
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Daryl A Taketa
- Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Michael Tessler
- American Museum of Natural History and New York University, New York, NY, USA
- Department of Biology, St. Francis College, Brooklyn, NY, USA
| | - David F Gruber
- Department of Biology and Environmental Science, City University of New York Baruch College, New York, NY, USA
| | - Anthony W De Tomaso
- Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Yasuo Mitani
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
| | - Trevor J Rivers
- Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS, USA
| | - Gretchen A Gerrish
- Department of Biology, University of Wisconsin - La Crosse, La Crosse, WI, USA
| | - Elizabeth Torres
- Department of Biological Sciences, California State University, Los Angeles, Los Angeles, CA, USA
| | - Todd H Oakley
- Department of Ecology, Evolution, & Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
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9
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Garg S, Wu C, Ohmiya Y, Kaul SC, Wadhwa R. Express ELISA for detection of mortalin. Biotechniques 2019; 67:166-171. [PMID: 31502469 DOI: 10.2144/btn-2018-0158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Mortalin is a widely studied stress chaperone that plays a significant role in diseases such as cancer, diabetes mellitus, liver cirrhosis, neurodegeneration and generalized aging. Based on these, the level of mortalin expression has been predicted to be an important and valuable diagnostic and prognostic marker. Conventional methods of protein analyses, such as Western blotting, immunohistochemistry or ELISA with antibodies provide specific, sensitive and useful outcomes. However, they are limited by lengthy and time-consuming protocols. Here, we present an upgrade to the existing ELISA techniques. We have prepared a conjugate of anti-mortalin antibody and luciferase enzyme that can be recruited for rapid (∼3 h) and quantitative detection of mortalin expression in a given biological sample.
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Affiliation(s)
- Sukant Garg
- DAILAB, DBT-AIST International Center for Translational & Environmental Research (DAICENTER), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba 305-8565, Japan.,School of Integrative & Global Majors, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Chun Wu
- DAILAB, DBT-AIST International Center for Translational & Environmental Research (DAICENTER), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba 305-8565, Japan
| | - Yoshihiro Ohmiya
- DAILAB, DBT-AIST International Center for Translational & Environmental Research (DAICENTER), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba 305-8565, Japan
| | - Sunil C Kaul
- DAILAB, DBT-AIST International Center for Translational & Environmental Research (DAICENTER), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba 305-8565, Japan
| | - Renu Wadhwa
- DAILAB, DBT-AIST International Center for Translational & Environmental Research (DAICENTER), National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba 305-8565, Japan.,School of Integrative & Global Majors, University of Tsukuba, Tsukuba 305-8577, Japan
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10
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Reifenrath M, Bauer M, Oreb M, Boles E. Bacterial bifunctional chorismate mutase-prephenate dehydratase PheA increases flux into the yeast phenylalanine pathway and improves mandelic acid production. Metab Eng Commun 2018; 7:e00079. [PMID: 30370221 PMCID: PMC6199770 DOI: 10.1016/j.mec.2018.e00079] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 08/21/2018] [Accepted: 09/17/2018] [Indexed: 01/29/2023] Open
Abstract
Mandelic acid is an important aromatic fine chemical and is currently mainly produced via chemical synthesis. Recently, mandelic acid production was achieved by microbial fermentations using engineered Escherichia coli and Saccharomyces cerevisiae expressing heterologous hydroxymandelate synthases (hmaS). The best-performing strains carried a deletion of the gene encoding the first enzyme of the tyrosine biosynthetic pathway and therefore were auxotrophic for tyrosine. This was necessary to avoid formation of the competing intermediate hydroxyphenylpyruvate, the preferred substrate for HmaS, which would have resulted in the predominant production of hydroxymandelic acid. However, feeding tyrosine to the medium would increase fermentation costs. In order to engineer a tyrosine prototrophic mandelic acid-producing S. cerevisiae strain, we tested three strategies: (1) rational engineering of the HmaS active site for reduced binding of hydroxyphenylpyruvate, (2) compartmentalization of the mandelic acid biosynthesis pathway by relocating HmaS together with the two upstream enzymes chorismate mutase Aro7 and prephenate dehydratase Pha2 into mitochondria or peroxisomes, and (3) utilizing a feedback-resistant version of the bifunctional E. coli enzyme PheA (PheAfbr) in an aro7 deletion strain. PheA has both chorismate mutase and prephenate dehydratase activity. Whereas the enzyme engineering approaches were only successful in respect to reducing the preference of HmaS for hydroxyphenylpyruvate but not in increasing mandelic acid titers, we could show that strategies (2) and (3) significantly reduced hydroxymandelic acid production in favor of increased mandelic acid production, without causing tyrosine auxotrophy. Using the bifunctional enzyme PheAfbr turned out to be the most promising strategy, and mandelic acid production could be increased 12-fold, yielding titers up to 120 mg/L. Moreover, our results indicate that utilizing PheAfbr also shows promise for other industrial applications with S. cerevisiae that depend on a strong flux into the phenylalanine biosynthetic pathway. Increased mandelic acid production in tyrosine prototrophic S. cerevisiae. Bifunctional E. coli enzyme PheA increases flux into yeast phenylalanine branch. PheA allows mandelic acid production in prototrophic S. cerevisiae. Compartmentalized mandelic acid production in yeast mitochondria/peroxisomes.
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Affiliation(s)
- Mara Reifenrath
- Institute of Molecular Biosciences, Faculty of Biological Sciences, Goethe University Frankfurt, Max-von-Laue Straße 9, 60438 Frankfurt am Main, Germany
| | - Maren Bauer
- Institute of Molecular Biosciences, Faculty of Biological Sciences, Goethe University Frankfurt, Max-von-Laue Straße 9, 60438 Frankfurt am Main, Germany
| | - Mislav Oreb
- Institute of Molecular Biosciences, Faculty of Biological Sciences, Goethe University Frankfurt, Max-von-Laue Straße 9, 60438 Frankfurt am Main, Germany
| | - Eckhard Boles
- Institute of Molecular Biosciences, Faculty of Biological Sciences, Goethe University Frankfurt, Max-von-Laue Straße 9, 60438 Frankfurt am Main, Germany
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11
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Brückner C, Oreb M, Kunze G, Boles E, Tripp J. An expanded enzyme toolbox for production of cis, cis-muconic acid and other shikimate pathway derivatives in Saccharomyces cerevisiae. FEMS Yeast Res 2018; 18:4862472. [DOI: 10.1093/femsyr/foy017] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 02/14/2018] [Indexed: 11/14/2022] Open
Affiliation(s)
- Christine Brückner
- Institute of Molecular Biosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
| | - Mislav Oreb
- Institute of Molecular Biosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
| | - Gotthard Kunze
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstraße 3, 06466 Gatersleben, Germany
| | - Eckhard Boles
- Institute of Molecular Biosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
| | - Joanna Tripp
- Institute of Molecular Biosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
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12
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Kaskova ZM, Tsarkova AS, Yampolsky IV. 1001 lights: luciferins, luciferases, their mechanisms of action and applications in chemical analysis, biology and medicine. Chem Soc Rev 2018; 45:6048-6077. [PMID: 27711774 DOI: 10.1039/c6cs00296j] [Citation(s) in RCA: 200] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bioluminescence (BL) is a spectacular phenomenon involving light emission by live organisms. It is caused by the oxidation of a small organic molecule, luciferin, with molecular oxygen, which is catalysed by the enzyme luciferase. In nature, there are approximately 30 different BL systems, of which only 9 have been studied to various degrees in terms of their reaction mechanisms. A vast range of in vitro and in vivo analytical techniques have been developed based on BL, including tests for different analytes, immunoassays, gene expression assays, drug screening, bioimaging of live organisms, cancer studies, the investigation of infectious diseases and environmental monitoring. This review aims to cover the major existing applications for bioluminescence in the context of the diversity of luciferases and their substrates, luciferins. Particularly, the properties and applications of d-luciferin, coelenterazine, bacterial, Cypridina and dinoflagellate luciferins and their analogues along with their corresponding luciferases are described. Finally, four other rarely studied bioluminescent systems (those of limpet Latia, earthworms Diplocardia and Fridericia and higher fungi), which are promising for future use, are also discussed.
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Affiliation(s)
- Zinaida M Kaskova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia. and Pirogov Russian National Research Medical University, Ostrovitianova 1, Moscow 117997, Russia
| | - Aleksandra S Tsarkova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia. and Pirogov Russian National Research Medical University, Ostrovitianova 1, Moscow 117997, Russia
| | - Ilia V Yampolsky
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia. and Pirogov Russian National Research Medical University, Ostrovitianova 1, Moscow 117997, Russia
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13
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Yasuno R, Mitani Y, Ohmiya Y. Effects of N
-Glycosylation Deletions on Cypridina
Luciferase Activity. Photochem Photobiol 2017. [DOI: 10.1111/php.12847 and 1=1#] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rie Yasuno
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Yasuo Mitani
- Bioproduction Research Institute; AIST; Sapporo Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
- DAILAB; Biomedical Research Institute; AIST; Tsukuba Japan
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14
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Yasuno R, Mitani Y, Ohmiya Y. Effects of N
-Glycosylation Deletions on Cypridina
Luciferase Activity. Photochem Photobiol 2017. [DOI: 10.1111/php.12847 and 1=1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Rie Yasuno
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Yasuo Mitani
- Bioproduction Research Institute; AIST; Sapporo Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
- DAILAB; Biomedical Research Institute; AIST; Tsukuba Japan
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15
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Yasuno R, Mitani Y, Ohmiya Y. Effects of N
-Glycosylation Deletions on Cypridina
Luciferase Activity. Photochem Photobiol 2017. [DOI: 10.1111/php.12847 or(1=2)-- -] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Rie Yasuno
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Yasuo Mitani
- Bioproduction Research Institute; AIST; Sapporo Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
- DAILAB; Biomedical Research Institute; AIST; Tsukuba Japan
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16
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Yasuno R, Mitani Y, Ohmiya Y. Effects of N
-Glycosylation Deletions on Cypridina
Luciferase Activity. Photochem Photobiol 2017. [DOI: 10.1111/php.12847 and 1=2-- -] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rie Yasuno
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Yasuo Mitani
- Bioproduction Research Institute; AIST; Sapporo Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
- DAILAB; Biomedical Research Institute; AIST; Tsukuba Japan
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17
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Yasuno R, Mitani Y, Ohmiya Y. Effects of N
-Glycosylation Deletions on Cypridina
Luciferase Activity. Photochem Photobiol 2017. [DOI: 10.1111/php.12847 and 1=1-- -] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rie Yasuno
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Yasuo Mitani
- Bioproduction Research Institute; AIST; Sapporo Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
- DAILAB; Biomedical Research Institute; AIST; Tsukuba Japan
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18
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Yasuno R, Mitani Y, Ohmiya Y. Effects of N
-Glycosylation Deletions on Cypridina
Luciferase Activity. Photochem Photobiol 2017; 94:338-342. [DOI: 10.1111/php.12847] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 09/15/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Rie Yasuno
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Yasuo Mitani
- Bioproduction Research Institute; AIST; Sapporo Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
- DAILAB; Biomedical Research Institute; AIST; Tsukuba Japan
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19
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Yasuno R, Mitani Y, Ohmiya Y. Effects of N
-Glycosylation Deletions on Cypridina
Luciferase Activity. Photochem Photobiol 2017. [DOI: 10.1111/php.12847 and 1=2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rie Yasuno
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Yasuo Mitani
- Bioproduction Research Institute; AIST; Sapporo Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
- DAILAB; Biomedical Research Institute; AIST; Tsukuba Japan
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20
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Yasuno R, Mitani Y, Ohmiya Y. Effects of N
-Glycosylation Deletions on Cypridina
Luciferase Activity. Photochem Photobiol 2017. [DOI: 10.1111/php.12847 and 1=2#] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rie Yasuno
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Yasuo Mitani
- Bioproduction Research Institute; AIST; Sapporo Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
- DAILAB; Biomedical Research Institute; AIST; Tsukuba Japan
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21
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Yasuno R, Mitani Y, Ohmiya Y. Effects of N
-Glycosylation Deletions on Cypridina
Luciferase Activity. Photochem Photobiol 2017. [DOI: 10.1111/php.12847 or(1=1)-- -] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rie Yasuno
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
| | - Yasuo Mitani
- Bioproduction Research Institute; AIST; Sapporo Japan
| | - Yoshihiro Ohmiya
- Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Japan
- DAILAB; Biomedical Research Institute; AIST; Tsukuba Japan
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22
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Generoso WC, Brinek M, Dietz H, Oreb M, Boles E. Secretion of 2,3-dihydroxyisovalerate as a limiting factor for isobutanol production in Saccharomyces cerevisiae. FEMS Yeast Res 2017; 17:3821180. [DOI: 10.1093/femsyr/fox029] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 05/11/2017] [Indexed: 01/23/2023] Open
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23
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Mitani Y, Oshima Y, Mitsuda N, Tomioka A, Sukegawa M, Fujita M, Kaji H, Ohmiya Y. Efficient production of glycosylated Cypridina luciferase using plant cells. Protein Expr Purif 2017; 133:102-109. [DOI: 10.1016/j.pep.2017.03.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 02/28/2017] [Accepted: 03/08/2017] [Indexed: 11/30/2022]
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24
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Improvement of the yeast based (R)-phenylacetylcarbinol production process via reduction of by-product formation. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2016.09.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Ding BW, Naumov P, Liu YJ. Mechanistic insight into marine bioluminescence: photochemistry of the chemiexcited Cypridina (sea firefly) lumophore. J Chem Theory Comput 2016; 11:591-9. [PMID: 26580916 DOI: 10.1021/ct5009203] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cypridina hilgendorfii (sea firefly) is a bioluminescent crustacean whose bioluminescence (BL) reaction is archetypal for a number of marine organisms, notably other bioluminescent crustaceans and coelenterates. Unraveling the mechanism of its BL is paramount for future applications of its strongly emissive lumophore. Cypridina produces light in a three-step reaction: First, the cypridinid luciferin is activated by an enzyme to produce a peroxide intermediate, cypridinid dioxetanone (CDO), which then decomposes to generate excited oxyluciferin (OxyCLnH*). Finally, OxyCLnH* deexcites to its ground state along with emission of bright blue light. Unfortunately, the detailed mechanism of the critical step, the thermolysis of CDO, remains unknown, and it is unclear whether the light emitter is generated from a neutral form (CDOH) or anionic form (CDO(-)) of the CDO precursor. In this work, we investigated the key step in the process by modeling the thermal decompositions of both CDOH and CDO(-). The calculated results indicate that the decomposition of CDO(-) occurs via the gradually reversible charge transfer (CT)-initiated luminescence (GRCTIL) mechanism, whereas CDOH decomposes through an entropic trapping mechanism without an obvious CT process. The thermolysis of CDO(-) is sensitive to solvent effects and is energetically favorable in polar environments compared with the thermolysis of CDOH. The thermolysis of CDO(-) produces the excited oxyluciferin anion (OxyCLn(-)*), which combines with a proton from the environment to form OxyCLnH*, the actual light emitter for the natural system.
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Affiliation(s)
- Bo-Wen Ding
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University , Beijing 100875, China
| | - Panče Naumov
- New York University Abu Dhabi , P.O. Box 129188, Abu Dhabi, United Arab Emirates
| | - Ya-Jun Liu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University , Beijing 100875, China
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26
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Yeast Biosensors for Detection of Environmental Pollutants: Current State and Limitations. Trends Biotechnol 2016; 34:408-419. [DOI: 10.1016/j.tibtech.2016.01.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/19/2016] [Accepted: 01/20/2016] [Indexed: 01/17/2023]
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27
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Sorenson MR, Stevens SW. Rapid identification of mRNA processing defects with a novel single-cell yeast reporter. RNA (NEW YORK, N.Y.) 2014; 20:732-45. [PMID: 24671766 PMCID: PMC3988574 DOI: 10.1261/rna.042663.113] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
It has become increasingly evident that gene expression processes in eukaryotes involve communication and coordination between many complex, independent macromolecular machines. To query these processes and to explore the potential relationships between them in the budding yeast Saccharomyces cerevisiae, we designed a versatile reporter using multicolor high-throughput flow cytometry. Due to its design, this single reporter exhibits a distinctive signature for many defects in gene expression including transcription, histone modification, pre-mRNA splicing, mRNA export, nonsense-mediated decay, and mRNA degradation. Analysis of the reporter in 4967 nonessential yeast genes revealed striking phenotypic overlaps between chromatin remodeling, histone modification, and pre-mRNA splicing. Additionally, we developed a copper-inducible reporter, with which we demonstrate that 5-fluorouracil mimics the mRNA decay phenotype of cells lacking the 3'-5' exonuclease Rrp6p. Our reporter is capable of performing high-throughput, rapid, and large-scale screens to identify and characterize genetic and chemical perturbations of the major eukaryotic gene expression processes.
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Affiliation(s)
| | - Scott W. Stevens
- Department of Molecular Biosciences
- Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA
- Corresponding authorE-mail
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28
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Fukunaga T, Cha-aim K, Hirakawa Y, Sakai R, Kitagawa T, Nakamura M, Nonklang S, Hoshida H, Akada R. Designed construction of recombinant DNA at theura3Δ0locus in the yeastSaccharomyces cerevisiae. Yeast 2013; 30:243-53. [DOI: 10.1002/yea.2957] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 04/08/2013] [Accepted: 04/15/2013] [Indexed: 11/08/2022] Open
Affiliation(s)
- Tomoaki Fukunaga
- Department of Applied Molecular Bioscience, Graduate School of Medicine; Yamaguchi University; Tokiwadai; Ube; Japan
| | - Kamonchai Cha-aim
- Department of Applied Molecular Bioscience, Graduate School of Medicine; Yamaguchi University; Tokiwadai; Ube; Japan
| | - Yuki Hirakawa
- Department of Applied Molecular Bioscience, Graduate School of Medicine; Yamaguchi University; Tokiwadai; Ube; Japan
| | - Ryota Sakai
- Department of Applied Molecular Bioscience, Graduate School of Medicine; Yamaguchi University; Tokiwadai; Ube; Japan
| | - Takao Kitagawa
- Department of Applied Molecular Bioscience, Graduate School of Medicine; Yamaguchi University; Tokiwadai; Ube; Japan
| | - Mikiko Nakamura
- Innovation Centre; Yamaguchi University; Tokiwadai; Ube; Japan
| | - Sanom Nonklang
- Department of Applied Molecular Bioscience, Graduate School of Medicine; Yamaguchi University; Tokiwadai; Ube; Japan
| | - Hisashi Hoshida
- Department of Applied Molecular Bioscience, Graduate School of Medicine; Yamaguchi University; Tokiwadai; Ube; Japan
| | - Rinji Akada
- Department of Applied Molecular Bioscience, Graduate School of Medicine; Yamaguchi University; Tokiwadai; Ube; Japan
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29
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Ainsworth WB, Rome CM, Hjortsø MA, Benton MG. Construction of a cytosolic firefly luciferase reporter cassette for use in PCR-mediated gene deletion and fusion in Saccharomyces cerevisiae. Yeast 2012; 29:505-17. [PMID: 23172625 DOI: 10.1002/yea.2931] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Accepted: 09/14/2012] [Indexed: 11/07/2022] Open
Abstract
Monitoring promoter response to environmental changes using reporter systems has provided invaluable information regarding cellular state. With the development of in vivo luciferase reporter systems, inexpensive, sensitive and accurate promoter assays have been developed without the variability reported between in vitro samplings. Current luciferase reporter systems, however, are largely inflexible to modifications to the promoter of interest. To overcome problems in flexibility and stability of these expression vectors, we report the creation of a novel vector system which introduces a cytosol-localized Photinus pyralis luciferase [LUC*(-SKL)] capable of one-step, in vivo measurements into a promoter-reporter system via PCR-based gene deletion and fusion. After introduction of the reporter under HUG1 promoter control, cytosolic localization was confirmed by fluorescence microscopy. The dose-response of this novel construct was then compared with that of a similar HUG1Δ::yEGFP1 promoter-reporter system and shown to give a similar response pattern.
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Affiliation(s)
- W B Ainsworth
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
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30
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Kim IK, Roldão A, Siewers V, Nielsen J. A systems-level approach for metabolic engineering of yeast cell factories. FEMS Yeast Res 2012; 12:228-48. [DOI: 10.1111/j.1567-1364.2011.00779.x] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Revised: 12/05/2011] [Accepted: 12/09/2011] [Indexed: 12/01/2022] Open
Affiliation(s)
- Il-Kwon Kim
- Department of Chemical and Biological Engineering; Chalmers University of Technology; Gothenburg; Sweden
| | - António Roldão
- Department of Chemical and Biological Engineering; Chalmers University of Technology; Gothenburg; Sweden
| | - Verena Siewers
- Department of Chemical and Biological Engineering; Chalmers University of Technology; Gothenburg; Sweden
| | - Jens Nielsen
- Department of Chemical and Biological Engineering; Chalmers University of Technology; Gothenburg; Sweden
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31
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Krivoruchko A, Siewers V, Nielsen J. Opportunities for yeast metabolic engineering: Lessons from synthetic biology. Biotechnol J 2011; 6:262-76. [DOI: 10.1002/biot.201000308] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2010] [Revised: 01/06/2011] [Accepted: 01/13/2011] [Indexed: 11/08/2022]
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32
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Ochi Y, Sugawara H, Iwami M, Tanaka M, Eki T. Sensitive detection of chemical-induced genotoxicity by the Cypridina secretory luciferase reporter assay, using DNA repair-deficient strains of Saccharomyces cerevisiae. Yeast 2011; 28:265-78. [DOI: 10.1002/yea.1837] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 11/25/2010] [Indexed: 11/10/2022] Open
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