51
|
Effect of Pyruvate Decarboxylase Knockout on Product Distribution Using Pichia pastoris (Komagataella phaffii) Engineered for Lactic Acid Production. Bioengineering (Basel) 2018; 5:bioengineering5010017. [PMID: 29462904 PMCID: PMC5874883 DOI: 10.3390/bioengineering5010017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 02/11/2018] [Accepted: 02/12/2018] [Indexed: 01/06/2023] Open
Abstract
Lactic acid is the monomer unit of the bioplastic poly-lactic acid (PLA). One candidate organism for lactic acid production is Pichia pastoris, a yeast widely used for heterologous protein production. Nevertheless, this yeast has a poor fermentative capability that can be modulated by controlling oxygen levels. In a previous study, lactate dehydrogenase (LDH) activity was introduced into P. pastoris, enabling this yeast to produce lactic acid. The present study aimed to increase the flow of pyruvate towards the production of lactic acid in P. pastoris. To this end, a strain designated GLp was constructed by inserting the bovine lactic acid dehydrogenase gene (LDHb) concomitantly with the interruption of the gene encoding pyruvate decarboxylase (PDC). Aerobic fermentation, followed by micro-aerophilic culture two-phase fermentations, showed that the GLp strain achieved a lactic acid yield of 0.65 g/g. The distribution of fermentation products demonstrated that the acetate titer was reduced by 20% in the GLp strain with a concomitant increase in arabitol production: arabitol increased from 0.025 g/g to 0.174 g/g when compared to the GS115 strain. Taken together, the results show a significant potential for P. pastoris in producing lactic acid. Moreover, for the first time, physiological data regarding co-product formation have indicated the redox balance limitations of this yeast.
Collapse
|
52
|
Gil de los Santos D, Gil de los Santos JR, Gil-Turnes C, Gaboardi G, Fernandes Silva L, França R, Gevehr Fernandes C, Rochedo Conceição F. Probiotic effect of Pichia pastoris X-33 produced in parboiled rice effluent and YPD medium on broiler chickens. PLoS One 2018; 13:e0192904. [PMID: 29447227 PMCID: PMC5814009 DOI: 10.1371/journal.pone.0192904] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 02/01/2018] [Indexed: 12/23/2022] Open
Abstract
In a previous paper we showed that the yeast Pichia pastoris X-33 grown in parboiled rice effluent supplemented with glycerol byproduct from the biodiesel industry improved the quality of the effluent. In this paper we show the validation of this yeast (PPE) as probiotic for broilers. Its effect on feed efficiency and immunomodulation was compared with the same yeast grown in yeast peptone dextrose medium (PPY), with Saccharomyces boulardii (SBY) and with the controls fed unsupplemented feed (CON). One-day-old female chicks were vaccinated against infectious bursal disease (IBD) and the titers of anti-IBD antibodies were measured by ELISA. PPE group had the highest mean titres on days 14 and 28 (p<0,05), and at 28 days, 64% of the animals showed seroconvertion. The PPE group also showed the best weight gains at 42 days of age, that, on days 7, 14 and 21 were 19%, 15%, and 8.7% higher, respectively, than the control group. The best feed conversion, 8.2% higher than the control group, was obtained by PPY at 42 days. Histopathological studies did not detect any undesirable effects in the supplemented animals. We concluded that Pichia pastoris X-33 when grown in effluents of the rice parboiling industry supplemented with glycerol byproduct from the biodiesel has probiotic properties for poultry.
Collapse
Affiliation(s)
- Diego Gil de los Santos
- Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
- Instituto Federal Sul-riograndense, Pelotas, RS, Brazil
- * E-mail:
| | | | - Carlos Gil-Turnes
- Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
- Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Giana Gaboardi
- Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Luiza Fernandes Silva
- Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Rodrigo França
- Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | | | - Fabricio Rochedo Conceição
- Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
- Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| |
Collapse
|
53
|
Jiao L, Zhou Q, Su Z, Xu L, Yan Y. High-level extracellular production of Rhizopus oryzae lipase in Pichia pastoris via a strategy combining optimization of gene-copy number with co-expression of ERAD-related proteins. Protein Expr Purif 2018; 147:1-12. [PMID: 29452270 DOI: 10.1016/j.pep.2018.02.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/04/2018] [Accepted: 02/11/2018] [Indexed: 12/17/2022]
Abstract
Rhizopus oryzae lipase (ROL) is an important industrial enzyme limited in application due to its low production in native strains. Here, we used a new combined strategy to overexpress ROL in Pichia pastoris. An efficient method based on bio-brick was developed to construct a series of vectors harboring different copy numbers of ROL gene cassettes, which were then transformed into P. pastoris GS115 to generate a strain with specific copy numbers of ROL. An optimized gene-dosage recombinant strain of GS115/pAOα-5ROL 11# harboring five copies of ROL was screened, revealing production of the highest activity (2700 U/mL), which was 8-fold higher than that of the strain harboring one copy. The activity of GS115/pAOα-5ROL 11# was then enhanced to 3080 U/mL in a shaking flask under optimized culture conditions. Subsequently, the endoplasmic reticulum-associated protein-degradation-related genes Ubc1 or/and Hrd1 were co-expressed with ROL to further increase ROL expression. The activities of the recombinant strains, GS115/5ROL-Ubc1 22#, -Hrd1 15#, and -Hrd1-Ubc1 1#, were 4000 U/mL, 4200 U/mL, and 4750 U/mL, which was 29.9%, 36.4%, and 54.2% higher, respectively, than that observed in GS115/pAOα-5ROL 11#. Using the combined strategy, ROL expression was improved 15.8-fold, with maximum GS115/5ROL-Hrd1-Ubc1 1# activity reaching 33,900 U/mL via a sorbitol/methanol co-feeding strategy in a 3-L fermenter and resulting in a 1.65-, 1.26-, and 1.14-fold enhancement relative to the activities observed in strains GS115/pAOα-5ROL 11#, GS115/5ROL-Ubc1 22#, and GS115/5ROL-Hrd1 15#, respectively. These results indicated that heterologous overexpression of ROL in P. pastoris using this combined strategy is feasible for large-scale industrialization.
Collapse
Affiliation(s)
- Liangcheng Jiao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Qinghua Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zhixin Su
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Li Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Yunjun Yan
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| |
Collapse
|
54
|
Acetamidase as a dominant recyclable marker for Komagataella phaffii strain engineering. Appl Microbiol Biotechnol 2018; 102:2753-2761. [PMID: 29435619 DOI: 10.1007/s00253-018-8824-9] [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: 11/10/2017] [Revised: 01/18/2018] [Accepted: 01/20/2018] [Indexed: 12/19/2022]
Abstract
We have investigated the use of the gene coding for acetamidase (amdS) as a recyclable dominant marker for the methylotrophic yeast Komagataella phaffii in order to broaden its genetic toolbox. First, the endogenous constitutive AMD2 gene (a putative acetamidase) was deleted generating strain LA1. A cassette (amdSloxP) was constructed bearing a codon-optimized version of the Aspergillus nidulans amdS gene flanked by loxP sites for marker excision with Cre recombinase. This cassette was successfully tested as a dominant selection marker for transformation of the LA1 strain after selection on plates containing acetamide as a sole nitrogen source. Finally, amdSloxP was used to sequentially disrupt the K. phaffii ADE2 and URA5 genes. After each disruption event, a Cre-mediated marker recycling step was performed by plating cells on medium containing fluoroacetamide. In conclusion, amdS proved to be a suitable tool for K. phaffii transformation and marker recycling thus providing a new antibiotic-free system for genetic manipulation of this yeast.
Collapse
|
55
|
Comparison of secretory signal peptides for heterologous protein expression in microalgae: Expanding the secretion portfolio for Chlamydomonas reinhardtii. PLoS One 2018; 13:e0192433. [PMID: 29408937 PMCID: PMC5800701 DOI: 10.1371/journal.pone.0192433] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 01/22/2018] [Indexed: 12/22/2022] Open
Abstract
Efficient protein secretion is a desirable trait for any recombinant protein expression system, together with simple, low-cost, and defined media, such as the typical media used for photosynthetic cultures of microalgae. However, low titers of secreted heterologous proteins are usually obtained, even with the most extensively studied microalga Chlamydomonas reinhardtii, preventing their industrial application. In this study, we aimed to expand and evaluate secretory signal peptides (SP) for heterologous protein secretion in C. reinhardtii by comparing previously described SP with untested sequences. We compared the SPs from arylsulfatase 1 and carbonic anhydrase 1, with those of untried SPs from binding protein 1, an ice-binding protein, and six sequences identified in silico. We identified over 2000 unique SPs using the SignalP 4.0 software. mCherry fluorescence was used to compare the protein secretion of up to 96 colonies for each construct, non-secretion construct, and parental wild-type cc1690 cells. Supernatant fluorescence varied according to the SP used, with a 10-fold difference observed between the highest and lowest secretors. Moreover, two SPs identified in silico secreted the highest amount of mCherry. Our results demonstrate that the SP should be carefully selected and that efficient sequences can be coded in the C. reinhardtii genome. The SPs described here expand the portfolio available for research on heterologous protein secretion and for biomanufacturing applications.
Collapse
|
56
|
Chahed H, Boumaiza M, Ezzine A, Marzouki M. Heterologous expression and biochemical characterization of a novel thermostable Sclerotinia sclerotiorum GH45 endoglucanase in Pichia pastoris. Int J Biol Macromol 2018; 106:629-635. [DOI: 10.1016/j.ijbiomac.2017.08.062] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 08/08/2017] [Accepted: 08/09/2017] [Indexed: 12/19/2022]
|
57
|
Wang J, Wang X, Shi L, Zhang Y, Zhou X, Cai M. Reduced methanol input induces increased protein output by AOX1 promoter in a trans-acting elements engineered Pichia pastoris. ACTA ACUST UNITED AC 2018; 45:25-30. [DOI: 10.1007/s10295-017-1988-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 11/06/2017] [Indexed: 10/18/2022]
Abstract
Abstract
High oxygen consumption and heat release caused by methanol catabolism usually bring difficulties to industrial scale-up and cost for protein expression driven by methanol-induced AOX1 promoter in Pichia pastoris. Here, reduced methanol feeding levels were investigated for expression of insulin precursor in a trans-acting elements engineered P. pastoris strain MF1-IP. Insulin precursor expression level reached 6.69 g/(L supernatant) at the methanol feeding rate of 6.67 mL/(h·L broth), which was 59% higher than that in the wild-type strain WT-IP at the methanol feeding rate of 12 mL/(h·L broth). Correspondingly, the insulin precursor expression level in fermentation broth and maximum specific insulin precursor production rate was 137 and 77% higher than the WT-IP, respectively. However, oxygen consumption and heat evolution were reduced, and the highest oxygen consumption rate and heat evolution rate of the MF1-IP were 18.0 and 37.7% lower than the WT-IP, respectively.
Collapse
Affiliation(s)
- Jinjia Wang
- 0000 0001 2163 4895 grid.28056.39 State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| | - Xiaolong Wang
- 0000 0001 2163 4895 grid.28056.39 State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| | - Lei Shi
- 0000 0001 2163 4895 grid.28056.39 State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| | - Yuanxing Zhang
- 0000 0001 2163 4895 grid.28056.39 State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
- 0000 0001 2163 4895 grid.28056.39 School of Biotechnology East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
- Shanghai Collaborative Innovation Center for Biomanufacturing 130 Meilong Road 200237 Shanghai China
| | - Xiangshan Zhou
- 0000 0001 2163 4895 grid.28056.39 State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
- 0000 0001 2163 4895 grid.28056.39 School of Biotechnology East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| | - Menghao Cai
- 0000 0001 2163 4895 grid.28056.39 State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
- 0000 0001 2163 4895 grid.28056.39 School of Biotechnology East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| |
Collapse
|
58
|
Transcriptome analysis of Δmig1Δmig2 mutant reveals their roles in methanol catabolism, peroxisome biogenesis and autophagy in methylotrophic yeast Pichia pastoris. Genes Genomics 2017; 40:399-412. [PMID: 29892842 DOI: 10.1007/s13258-017-0641-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Accepted: 12/08/2017] [Indexed: 01/11/2023]
Abstract
Two catabolite repressor genes (MIG1 and MIG2) were previously identified in Pichia pastoris, and the derepression of alcohol oxidase (AOX) expression was realized in Δmig1 or Δmig1Δmig2 mutants grown in glycerol, but not in glucose. In this study, genome-wide RNA-seq analysis of Δmig1Δmig2 and the wild-type strain grown in glycerol revealed that the expression of numerous genes was greatly altered. Nearly 7% (357 genes) of approximately 5276 genes annotated in P. pastoris were significantly upregulated, with at least a two-fold differential expression in Δmig1Δmig2; the genes were mainly related to cell metabolism. Approximately 23% (1197 genes) were significantly downregulated; these were mainly correlated with the physiological characteristics of the cell. The methanol catabolism and peroxisome biogenesis pathways were remarkably enhanced, and the genes AOX1 and AOX2 were upregulated higher than 30-fold, which was consistent with the experimental results of AOX expression. The Mig proteins had a slight effect on autophagy when cells were grown in glycerol. The expression analysis of transcription factors showed that deletion of MIG1 and MIG2 significantly upregulated the binding of an essential transcription activator, Mit1p, with the AOX1 promoter, which suggested that Mig proteins might regulate the AOX1 promoter through the regulation of Mit1p. This work provides a reference for the further exploration of the methanol induction and catabolite repression mechanisms of AOX expression in methylotrophic yeasts.
Collapse
|
59
|
Madhavan A, Pandey A, Sukumaran RK. Expression system for heterologous protein expression in the filamentous fungus Aspergillus unguis. BIORESOURCE TECHNOLOGY 2017; 245:1334-1342. [PMID: 28578805 DOI: 10.1016/j.biortech.2017.05.140] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 05/19/2017] [Accepted: 05/21/2017] [Indexed: 06/07/2023]
Abstract
Heterologous protein expression in filamentous fungi is advantageous, especially in the context of large scale production of high volume low value recombinant proteins. However, such systems are rare and not available in public domain. A novel filamentous fungus - Aspergillus unguis NII 08123 was used as host for developing a protein expression system. An expression cassette was assembled using A. nidulans glyceraldehyde 3 phosphate dehydrogenase promoter (Pgapd), tryptophan synthase transcription terminator (TtrpC) and hygromycin resistance gene (hph) as selection marker. The enhanced green fluorescent protein (GFP) gene from Aequorea victoria was used as the model test protein for the evaluation of the expression system. The genetic transformation of this novel fungus was optimized through electroporation. Use of heterologous signal peptides resulted in high levels of secreted expression. The fungal host-expression system combination was tested successfully for the expression of the recombinant therapeutic protein-human interferon beta (HuIFNβ).
Collapse
Affiliation(s)
- Aravind Madhavan
- Microbial Processes and Technology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Thiruvananthapuram 695 019, India
| | - Ashok Pandey
- Microbial Processes and Technology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Thiruvananthapuram 695 019, India; Center of Innovative and Applied Bioprocessing, Mohali 160 071, Punjab, India
| | - Rajeev K Sukumaran
- Microbial Processes and Technology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Thiruvananthapuram 695 019, India.
| |
Collapse
|
60
|
Chen H, Mao R, Teng D, Wang X, Hao Y, Feng X, Wang J. Design and pharmacodynamics of recombinant NZ2114 histidine mutants with improved activity against methicillin-resistant Staphylococcus aureus. AMB Express 2017; 7:46. [PMID: 28229435 PMCID: PMC5321639 DOI: 10.1186/s13568-017-0345-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 02/14/2017] [Indexed: 12/17/2022] Open
Abstract
NZ2114 is a promising candidate for therapeutic application owing to its potent activity to Staphylococcus aureus. Our objective was to identify NZ2114 derivatives with improved activity through substitution of His16 and His18 with residues Arginine and Lysine. Eight mutants were designed and expressed in Pichia pastoris X-33 via pPICZαA. Five of them exhibited strong antimicrobial activity against S. aureus at low minimal inhibitory concentrations (MICs) of 0.057-0.454 μM. Among them, H1, H2, and H3 showed ideal pharmacodynamic effects on methicillin-resistant S. aureus ATCC43300. The total protein level of H1, H2, and H3 reached 1.70, 1.77 and 1.54 g/l at 120 h of induction in the 5-l fermenter, respectively. They killed over 99.9% of pathogens within 1.5 h at 2× and 4× MIC. The post antibiotic effect of H1, H2 and H3 to S. aureus ATCC43300 was 2.94, 1.75 and 1.55 h at 2× MIC, which was similar with their original peptide NZ2114 (1.43 h) and vancomycin (1.72 h). The fractional inhibitory concentration index (FICI) indicated indifferent effects between H1, H2, H3 and vancomycin, ampicillin, rifampicin. Additionally, they had low hemolysis and high stability in different environments (temperature, pH, proteases, and saline ions). All results indicate that H1, H2, and H3 can be produced in large-scale and have potential as therapeutic drugs against MRSA.
Collapse
|
61
|
Prabhu AA, Venkata Dasu V. Dual-substrate inhibition kinetic studies for recombinant human interferon gamma producing Pichia pastoris. Prep Biochem Biotechnol 2017; 47:953-962. [DOI: 10.1080/10826068.2017.1350977] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ashish A. Prabhu
- Department of Biosciences and Bioengineering, Biochemical Engineering Laboratory, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Veeranki Venkata Dasu
- Department of Biosciences and Bioengineering, Biochemical Engineering Laboratory, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| |
Collapse
|
62
|
Summpunn P, Jomrit J, Panbangred W. Improvement of extracellular bacterial protein production in Pichia pastoris by co-expression of endoplasmic reticulum residing GroEL-GroES. J Biosci Bioeng 2017; 125:268-274. [PMID: 29046263 DOI: 10.1016/j.jbiosc.2017.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 09/20/2017] [Accepted: 09/25/2017] [Indexed: 01/08/2023]
Abstract
Pichia pastoris is an established host system for heterologous protein expression. However, the potential productivity of this system can be limited. In this study, the Escherichia coli chaperones (GroES-GroEL) were expressed from the PGAP promoter and targeted to the secretory pathway through the endoplasmic reticulum (ER). The ability of the ER targeted chaperones to improve production of bacterial protein in P. pastoris was evaluated. The chaperones tagged with α-factor secretion- and ER retention-signal sequences were co-expressed with either extracellularly secreted phytase or intracellular d-phenylglycine aminotransferase (D-PhgAT) enzymes. The ER residing GroEL-GroES successfully increased the levels of active phytase extracellularly, 1.5-2.3-fold higher than the phytase expression alone, but did not enhance the formation of active, intracellular D-PhgAT. These results indicate that the chaperones have the potential to enhance production of active enzymes when present in the same trafficking pathway. This is the first report on the improvement of extracellular bacterial protein production through co-expression with ER residing bacterial chaperones in the Pichia system. The modified P. pastoris expression system may be beneficial for extracellular expression of other prokaryotic proteins.
Collapse
Affiliation(s)
- Pijug Summpunn
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology, Walailak University, Nakhon Si Thammarat 80161, Thailand; Center of Excellence for Shrimp, School of Agricultural Technology, Walailak University, Nakhon Si Thammarat 80161, Thailand.
| | - Juntratip Jomrit
- Department of Microbiology, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand
| | - Watanalai Panbangred
- Department of Biotechnology, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand; Mahidol University-Osaka University Collaborative Research Center for Bioscience and Biotechnology (MU-OU:CRC), Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand
| |
Collapse
|
63
|
Chan MK, Lim SK, Miswan N, Chew AL, Noordin R, Khoo BY. Expression of stable and active human DNA topoisomerase I in Pichia pastoris. Protein Expr Purif 2017; 141:52-62. [PMID: 28893606 DOI: 10.1016/j.pep.2017.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/11/2017] [Accepted: 09/07/2017] [Indexed: 10/18/2022]
Abstract
This study described the isolation of the coding region of human topoisomerase I (TopoI) from MDA-MB-231 and the expression of multiple copy recombinant genes in four Pichia pastoris strains. First, polymerase chain reaction (PCR)-amplification of the enzyme coding region was performed. The PCR fragment was cloned into pPICZ-α-A vector and sequenced. It was then transformed into X33, GS115, SMD1168H and KM71H strains of Pichia. PCR-screening for positive clones was performed, and estimation of multiple copy integrants in each Pichia strain was carried out using agar plates containing increasing concentrations of Zeocin®. The selected clones of multiple copy recombinant genes were then induced for TopoI expression in shaker flasks. GS115 and SMD1168 were found to be better Pichia strains to accommodate the recombinant gene for the expression of TopoI extracellularly. However, the DNA relaxation activity revealed that only the target enzyme in the culture supernatants of GS115-pPICZ-α-A-TopoI exhibited consistent enzyme activity over the cultivation time-points. Active enzyme activity was inhibited by Camptothecin. The enzyme produced can be used for in-house gel-based DNA relaxation assay development in performing high throughput screening for target-specific growth inhibitors that display similar effect as the TopoI inhibitors. These inhibitors may contribute to the improvement of the treatment of cancer patients.
Collapse
Affiliation(s)
- Mooi Kwai Chan
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Shern Kwok Lim
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Noorizan Miswan
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Ai Lan Chew
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Rahmah Noordin
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Boon Yin Khoo
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 Penang, Malaysia.
| |
Collapse
|
64
|
Han C, Su L, Hong R, Wu S, Wu J. A comparative study of maltooligosyltrehalose synthase from Sulfolobus acidocaldarius expressed in Pichia pastoris and Escherichia coli. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.05.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
65
|
Large-Scale Production of Glaciozyma antarctica Antifreeze Protein 1 (Afp1) by Fed-Batch Fermentation of Pichia pastoris. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2017. [DOI: 10.1007/s13369-017-2738-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
66
|
Abd Wahid MA, Megat Mohd Noor MJ, Goto M, Sugiura N, Othman N, Zakaria Z, Ahmad Mohammed T, Jusoh A, Hara H. Recombinant protein expression of Moringa oleifera lectin in methylotrophic yeast as active coagulant for sustainable high turbid water treatment. Biosci Biotechnol Biochem 2017; 81:1642-1649. [PMID: 28585494 DOI: 10.1080/09168451.2017.1329617] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The natural coagulant Moringa oleifera lectin (MoL) as cationic protein is a promising candidate in coagulation process of water treatment plant. Introducing the gene encoding MoL into a host, Pichia pastoris, to secrete soluble recombinant protein is assessed in this study. Initial screening using PCR confirmed the insertion of MoL gene, and SDS-PAGE analysis detected the MoL protein at 8 kDa. Cultured optimization showed the highest MoL protein at 520 mg/L was observed at 28 °C for 144 h of culturing by induction in 1% methanol. Approximately, 0.40 mg/mL of recombinant MoL protein showed 95 ± 2% turbidity removal of 1% kaolin suspension. In 0.1% kaolin suspension, the concentration of MoL at 10 μg/mL exhibits the highest turbidity reduction at 68 ± 1%. Thus, recombinant MoL protein from P. pastoris is an effective coagulant for water treatment.
Collapse
Affiliation(s)
- Muhamad Azhar Abd Wahid
- a Department of Environmental Engineering and Green Technology , Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia , Kuala Lumpur , Malaysia
| | - Megat Johari Megat Mohd Noor
- a Department of Environmental Engineering and Green Technology , Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia , Kuala Lumpur , Malaysia
| | - Masafumi Goto
- a Department of Environmental Engineering and Green Technology , Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia , Kuala Lumpur , Malaysia
| | - Norio Sugiura
- a Department of Environmental Engineering and Green Technology , Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia , Kuala Lumpur , Malaysia.,b Graduate School of Life and Environmental Science , University of Tsukuba , Tsukuba , Japan
| | - Nor'azizi Othman
- c Department of Mechanical Precision Engineering , Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia , Kuala Lumpur , Malaysia
| | - Zuriati Zakaria
- a Department of Environmental Engineering and Green Technology , Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia , Kuala Lumpur , Malaysia
| | | | - Ahmad Jusoh
- e Department of Ocean Engineering , Universiti Malaysia Terengganu , Kuala Terengganu , Malaysia
| | - Hirofumi Hara
- a Department of Environmental Engineering and Green Technology , Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia , Kuala Lumpur , Malaysia
| |
Collapse
|
67
|
Reséndiz-Cardiel G, Arroyo R, Ortega-López J. Expression of the enzymatically active legumain-like cysteine proteinase TvLEGU-1 of Trichomonas vaginalis in Pichia pastoris. Protein Expr Purif 2017; 134:104-113. [DOI: 10.1016/j.pep.2017.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 04/04/2017] [Accepted: 04/14/2017] [Indexed: 01/11/2023]
|
68
|
Methanol-Independent Protein Expression by AOX1 Promoter with trans-Acting Elements Engineering and Glucose-Glycerol-Shift Induction in Pichia pastoris. Sci Rep 2017; 7:41850. [PMID: 28150747 PMCID: PMC5288789 DOI: 10.1038/srep41850] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 12/29/2016] [Indexed: 01/02/2023] Open
Abstract
The alcohol oxidase 1 promoter (PAOX1) of Pichia pastoris is commonly used for high level expression of recombinant proteins. While the safety risk of methanol and tough process control for methanol induction usually cause problems especially in large-scale fermentation. By testing the functions of trans-acting elements of PAOX1 and combinatorially engineering of them, we successfully constructed a methanol-free PAOX1 start-up strain, in which, three transcription repressors were identified and deleted and, one transcription activator were overexpressed. The strain expressed 77% GFP levels in glycerol compared to the wide-type in methanol. Then, insulin precursor (IP) was expressed, taking which as a model, we developed a novel glucose-glycerol-shift induced PAOX1 start-up for this methanol-free strain. A batch phase with glucose of 40 g/L followed by controlling residual glucose not lower than 20 g/L was compatible for supporting cell growth and suppressing PAOX1. Then, glycerol induction was started after glucose used up. Accordingly, an optimal bioprocess was further determined, generating a high IP production of 2.46 g/L in a 5-L bioreactor with dramatical decrease of oxygen consumption and heat evolution comparing with the wild-type in methanol. This mutant and bioprocess represent a safe and efficient alternative to the traditional glycerol-repressed/methanol-induced PAOX1 system.
Collapse
|
69
|
Pratush A, Seth A, Bhalla TC. Expression of nitrile hydratase gene of mutant 4D strain of Rhodococcus rhodochrous PA 34 in Pichia pastoris. BIOCATAL BIOTRANSFOR 2016. [DOI: 10.1080/10242422.2016.1247831] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Amit Pratush
- Department of Bioengineering, School of life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China,
| | - Amit Seth
- Department of Bioengineering, Shoolini University of Biotechnology and management Sciences, Solan, India, and
| | - Tek Chand Bhalla
- Department of Biotechnology, Himachal Pradesh University, Shimla, India
| |
Collapse
|
70
|
Recent advances of molecular toolbox construction expand Pichia pastoris in synthetic biology applications. World J Microbiol Biotechnol 2016; 33:19. [PMID: 27905091 DOI: 10.1007/s11274-016-2185-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 11/24/2016] [Indexed: 10/20/2022]
Abstract
Pichia pastoris: (reclassified as Komagataella phaffii), a methylotrophic yeast strain has been widely used for heterologous protein production because of its unique advantages, such as readily achievable high-density fermentation, tractable genetic modifications and typical eukaryotic post-translational modifications. More recently, P. pastoris as a metabolic pathway engineering platform has also gained much attention. In this mini-review, we addressed recent advances of molecular toolboxes, including synthetic promoters, signal peptides, and genome engineering tools that established for P. pastoris. Furthermore, the applications of P. pastoris towards synthetic biology were also discussed and prospected especially in the context of genome-scale metabolic pathway analysis.
Collapse
|
71
|
Wang M, Jiang S, Zhou L, Wang C, Mao R, Ponnusamy M. Efficient production of recombinant glycoprotein D of herpes simplex virus type 2 in Pichia pastoris and its protective efficacy against viral challenge in mice. Arch Virol 2016; 162:701-711. [PMID: 27868164 DOI: 10.1007/s00705-016-3154-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/07/2016] [Indexed: 12/21/2022]
Abstract
Herpes simplex virus type 2 (HSV-2) infection is the leading cause of genital ulcer disease and a significant public health concern. However, there are no approved vaccines available to prevent HSV-2 infection. The glycoprotein D (gD) of HSV-2 is the most important candidate antigen for vaccine development. In this study, a truncated form of gD (codons 1-340, gD1-340) was produced as a secretory protein in the methylotrophic yeast Pichia pastoris. The recombinant gD1-340 with a His6 tag was purified to homogeneity by one-step affinity chromatography. Mice immunized with the recombinant gD1-340 developed high levels of antigen-specific antibody responses with HSV-2 neutralizing activity. Immunization with the recombinant gD1-340 conferred significant protection against lethal HSV-2 infection in mice. Moreover, measurement of the secretion of gD1-340-specific cytokines demonstrated that the recombinant gD1-340 induced mixed Th1/Th2 cellular immune responses. These findings indicated that P. pastoris-derived gD1-340 represents a promising HSV-2 vaccine candidate with strong immunogenicity and prophylactic efficacy.
Collapse
Affiliation(s)
- Man Wang
- Institute for Translational Medicine, Medical College of Qingdao University, Qingdao, 266021, China.
| | - Shuai Jiang
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Li Zhou
- Animal Biosafety Level III Laboratory at the Center for Animal Experiment, Wuhan University, Wuhan, 430071, China
| | - Chaoqun Wang
- Institute for Translational Medicine, Medical College of Qingdao University, Qingdao, 266021, China
| | - Ruifeng Mao
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Murugavel Ponnusamy
- Institute for Translational Medicine, Medical College of Qingdao University, Qingdao, 266021, China
| |
Collapse
|
72
|
Ezzine A, Souabni H, Machillot P, Bizouarn T, Baciou L. Relationship between p22 phox expression, tag position and oxidase activity of the heterologous NADPH oxidase expressed in Pichia pastoris. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.05.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
73
|
Huang JW, Liu W, Lai HL, Cheng YS, Zheng Y, Li Q, Sun H, Kuo CJ, Guo RT, Chen CC. Crystal structure and genetic modifications of FI-CMCase from Aspergillus aculeatus F-50. Biochem Biophys Res Commun 2016; 478:565-72. [DOI: 10.1016/j.bbrc.2016.07.101] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 07/23/2016] [Indexed: 10/21/2022]
|
74
|
Marquard D, Enders A, Roth G, Rinas U, Scheper T, Lindner P. In situ microscopy for online monitoring of cell concentration in Pichia pastoris cultivations. J Biotechnol 2016; 234:90-98. [DOI: 10.1016/j.jbiotec.2016.07.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 07/23/2016] [Accepted: 07/29/2016] [Indexed: 10/21/2022]
|
75
|
Wongwatanapaiboon J, Malilas W, Ruangchainikom C, Thummadetsak G, Chulalaksananukul S, Marty A, Chulalaksananukul W. Overexpression of Fusarium solani lipase in Pichia pastoris and its application in lipid degradation. BIOTECHNOL BIOTEC EQ 2016. [DOI: 10.1080/13102818.2016.1202779] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Jinaporn Wongwatanapaiboon
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Biofuels by Biocatalysts Research Unit, Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Waraporn Malilas
- Biofuels by Biocatalysts Research Unit, Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Aquatic Resources Research Institute, Chulalongkorn University, Bangkok, Thailand
| | - Chalermchai Ruangchainikom
- Environmental Research and Management Department, PTT Research and Technology Institute, PTT Public Company Limited, Ayuthaya, Thailand
| | - Gamgarn Thummadetsak
- Environmental Research and Management Department, PTT Research and Technology Institute, PTT Public Company Limited, Ayuthaya, Thailand
| | - Suphang Chulalaksananukul
- Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
| | - Alain Marty
- Université de Toulouse, INSA, UPS, INP, LISBP, Toulouse, France
- CNRS, UMR5504, Toulouse, France
- INRA, UMR792, Ingénierie des Systèmes Biologiques et des Procédés, Toulouse, France
| | - Warawut Chulalaksananukul
- Biofuels by Biocatalysts Research Unit, Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Aquatic Resources Research Institute, Chulalongkorn University, Bangkok, Thailand
- Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| |
Collapse
|
76
|
Characterization of a novel enzyme—Starmerella bombicola lactone esterase (SBLE)—responsible for sophorolipid lactonization. Appl Microbiol Biotechnol 2016; 100:9529-9541. [DOI: 10.1007/s00253-016-7633-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 03/30/2016] [Accepted: 05/14/2016] [Indexed: 10/21/2022]
|
77
|
Construction and immunogenicity of a new Fc-based subunit vaccine candidate against Mycobacterium tuberculosis. Mol Biol Rep 2016; 43:911-22. [PMID: 27251218 DOI: 10.1007/s11033-016-4024-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Accepted: 05/27/2016] [Indexed: 12/17/2022]
Abstract
As an ancient disease, tuberculosis (TB) is a major global health threat. Therefore, there is an urgent need for an effective and safe anti-TB vaccine. In the current study, a delivery system of Fc domain of mouse IgG2a and early secreted antigenic target protein 6 (ESAT-6) was evaluated for the selective uptake of antigens by antigen-presenting cells (APCs). Thus, it was based on the immunogenicity of a fusion protein. The study was initiated by the transfer of recombinant expression vectors of pPICZαA-ESAT-6:Fcγ2a and pPICZαA-ESAT-6: His into Pichia pastoris (P. pastoris). Recombinant proteins were assessed for immunogenicity following the immunoblotting analysis. High levels of IFN-γ and IL-12 were produced to induce Th1-type cellular responses through vaccination with both recombinant proteins [ESAT-6:Fcγ2a (EF) and ESAT-6:His (EH)]. The Fc-tagged recombinant protein induced more effective Th1-type cellular responses with a low increment in IL-4 compared to PBS, BCG, and EH groups. Although in all the immunized groups, the ratio of IFN-γ/IL-4 was in favor of Th1 responses, the highest Th1/Th2 balance was observed in EF immunized group. Fc fragment of mouse IgG2a may induce a selective uptake of APCs towards the cross-presentation and formation of Th1 responses in favor of an appropriate protective anti-tuberculosis reaction. Thus, further research on Fc-fusion proteins is required to develop Fc-based TB vaccines.
Collapse
|
78
|
Improving the production of human interferon gamma (hIFN-γ) in Pichia pastoris cell factory: An approach of cell level. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.02.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
79
|
Ben Azoun S, Belhaj AE, Göngrich R, Gasser B, Kallel H. Molecular optimization of rabies virus glycoprotein expression in Pichia pastoris. Microb Biotechnol 2016; 9:355-68. [PMID: 26880068 PMCID: PMC4835572 DOI: 10.1111/1751-7915.12350] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/06/2016] [Accepted: 01/10/2016] [Indexed: 01/13/2023] Open
Abstract
In this work, different approaches were investigated to enhance the expression rabies virus glycoprotein (RABV-G) in the yeast Pichia pastoris; this membrane protein is responsible for the synthesis of rabies neutralizing antibodies. First, the impact of synonymous codon usage bias was examined and an optimized RABV-G gene was synthesized. Nevertheless, data showed that the secretion of the optimized RABV-G gene was not tremendously increased as compared with the non-optimized one. In addition, similar levels of RABV-G were obtained when α-factor mating factor from Saccharomyces cerevisiae or the acid phosphatase PHO1 was used as a secretion signal. Therefore, sequence optimization and secretion signal were not the major bottlenecks for high-level expression of RABV-G in P. pastoris. Unfolded protein response (UPR) was induced in clones containing high copy number of RABV-G expression cassette indicating that folding was the limiting step for RABV-G secretion. To circumvent this limitation, co-overexpression of five factors involved in oxidative protein folding was investigated. Among these factors only PDI1, ERO1 and GPX1 proved their benefit to enhance the expression. The highest expression level of RABV-G reached 1230 ng ml(-1). Competitive neutralizing assay confirmed that the recombinant protein was produced in the correct conformational form in this host.
Collapse
Affiliation(s)
- Safa Ben Azoun
- Laboratory of Molecular Microbiology, Vaccinology and Biotechnology Development, Biofermentation Unit, Institut Pasteur de Tunis, 13, place Pasteur. BP. 74, Tunis, 1002, Tunisia
| | - Aicha Eya Belhaj
- Laboratory of Molecular Microbiology, Vaccinology and Biotechnology Development, Biofermentation Unit, Institut Pasteur de Tunis, 13, place Pasteur. BP. 74, Tunis, 1002, Tunisia
| | - Rebecca Göngrich
- Department of Biotechnology, BOKU - University of Natural Resources and Life Sciences Vienna, Muthgasse 18, Vienna, 1190, Austria
| | - Brigitte Gasser
- Department of Biotechnology, BOKU - University of Natural Resources and Life Sciences Vienna, Muthgasse 18, Vienna, 1190, Austria
| | - Héla Kallel
- Laboratory of Molecular Microbiology, Vaccinology and Biotechnology Development, Biofermentation Unit, Institut Pasteur de Tunis, 13, place Pasteur. BP. 74, Tunis, 1002, Tunisia
| |
Collapse
|
80
|
Xiao X, Liu Z, Chen Y, Wang G, Li X, Fang Z, Huang S, Liu Z, Yan Y, Xu L. Over-expression of activeCandida rugosa lip1inPichia pastorisvia high cell-density fermentation and its application to resolve racemic ibuprofen. BIOCATAL BIOTRANSFOR 2016. [DOI: 10.3109/10242422.2016.1168815] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
81
|
Weninger A, Hatzl AM, Schmid C, Vogl T, Glieder A. Combinatorial optimization of CRISPR/Cas9 expression enables precision genome engineering in the methylotrophic yeast Pichia pastoris. J Biotechnol 2016; 235:139-49. [PMID: 27015975 DOI: 10.1016/j.jbiotec.2016.03.027] [Citation(s) in RCA: 162] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 03/14/2016] [Accepted: 03/16/2016] [Indexed: 01/14/2023]
Abstract
The methylotrophic yeast Pichia pastoris (Komagataella phaffii) is one of the most commonly used expression systems for heterologous protein production. However the recombination machinery in P. pastoris is less effective in contrast to Saccharomyces cerevisiae, where efficient homologous recombination naturally facilitates genetic modifications. The lack of simple and efficient methods for gene disruption and specifically integrating cassettes has remained a bottleneck for strain engineering in P. pastoris. Therefore tools and methods for targeted genome modifications are of great interest. Here we report the establishment of CRISPR/Cas9 technologies for P. pastoris and demonstrate targeting efficiencies approaching 100%. However there appeared to be a narrow window of optimal conditions required for efficient CRISPR/Cas9 function for this host. We systematically tested combinations of various codon optimized DNA sequences of CAS9, different gRNA sequences, RNA Polymerase III and RNA Polymerase II promoters in combination with ribozymes for the expression of the gRNAs and RNA Polymerase II promoters for the expression of CAS9. Only 6 out of 95 constructs were functional for efficient genome editing. We used this optimized CRISPR/Cas9 system for gene disruption studies, to introduce multiplexed gene deletions and to test the targeted integration of homologous DNA cassettes. This system allows rapid, marker-less genome engineering in P. pastoris enabling unprecedented strain and metabolic engineering applications.
Collapse
Affiliation(s)
- Astrid Weninger
- Institute for Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria
| | - Anna-Maria Hatzl
- Institute for Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria
| | - Christian Schmid
- Institute for Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria
| | - Thomas Vogl
- Institute for Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria.
| | - Anton Glieder
- Institute for Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria
| |
Collapse
|
82
|
Comparative Study on Different Expression Hosts for Alkaline Phytase Engineered in Escherichia coli. Appl Biochem Biotechnol 2016; 179:997-1010. [DOI: 10.1007/s12010-016-2046-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 03/07/2016] [Indexed: 10/22/2022]
|
83
|
Chai SY, Abu Bakar FD, Mahadi NM, Murad AMA. A thermotolerant Endo-1,4-β-mannanase from Trichoderma virens UKM1: Cloning, recombinant expression and characterization. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2015.12.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
84
|
Functional expression of human serum albumin-tandem thrombopoietin mimetic peptide fusion protein as a novel thrombopoietin analog in Pichia pastoris. Biotechnol Lett 2016; 38:779-85. [DOI: 10.1007/s10529-016-2049-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 01/21/2016] [Indexed: 10/22/2022]
|
85
|
Mosavat A, Soleimanpour S, Farsiani H, Sadeghian H, Ghazvini K, Sankian M, Jamehdar SA, Rezaee SA. Fused Mycobacterium tuberculosis multi-stage immunogens with an Fc-delivery system as a promising approach for the development of a tuberculosis vaccine. INFECTION GENETICS AND EVOLUTION 2016; 39:163-172. [PMID: 26835592 DOI: 10.1016/j.meegid.2016.01.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 01/23/2016] [Accepted: 01/29/2016] [Indexed: 12/16/2022]
Abstract
Tuberculosis (TB) remains a major health problem worldwide. Currently, the Bacilli Calmette-Guérin (BCG) is the only available licensed TB vaccine, which has low efficacy in protection against adult pulmonary TB. Therefore, the development of a safe and effective vaccine against TB needs global attention. In the present study, a novel multi-stage subunit vaccine candidate from culture filtrate protein-10 (CFP-10) and heat shock protein X (HspX) of Mycobacterium tuberculosis fused to the Fc domain of mouse IgG2a as a selective delivery system for antigen-presenting cells (APCs) was produced and its immunogenicity assessed. The optimized gene constructs were introduced into pPICZαA expression vectors, and the resultant plasmids (pPICZαA-CFP-10:Hspx:Fcγ2a and pPICZαA-CFP-10:Hspx:His) were transferred into Pichia pastoris by electroporation. The identification of both purified recombinant fusion proteins was evaluated by SDS-PAGE and immunoblotting. Then the immunogenicity of the recombinant proteins with and without BCG was evaluated in BALB/c mice by assessing the level of IFN-γ, IL-12, IL-4, IL-17 and TGF-β cytokines. Both multi-stage vaccines (CFP-10:HspX:Fcγ2a and CFP-10:HspX:His) induced Th1-type cellular responses by producing high level of IFN-γ (272 pg/mL, p<0.001) and IL-12 (191 pg/mL, p<0.001). However, the Fc-tagged recombinant protein induced more effective Th1-type cellular responses with a low level of IL-4 (10 pg/mL) compared to the CFP-10:HspX:His group. The production of IFN-γ to CFP-10:HspX:Fcγ2a was markedly consistent and showed an increasing trend for IL-12 compared with the BCG or CFP-10:HspX:His primed and boosted groups. Findings revealed that CFP-10:Hspx:Fcγ2a fusion protein can elicit strong Th1 antigen-specific immune responses in favor of protective immunity in mice and could provide new insight for introducing an effective multi-stage subunit vaccine against TB.
Collapse
Affiliation(s)
- Arman Mosavat
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Antimicrobial Resistance Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saman Soleimanpour
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Antimicrobial Resistance Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hadi Farsiani
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Antimicrobial Resistance Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Sadeghian
- Department of Laboratory Sciences, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kiarash Ghazvini
- Antimicrobial Resistance Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mojtaba Sankian
- Immunobiochemistry Lab, Immunology Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saeid Amel Jamehdar
- Antimicrobial Resistance Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Abdolrahim Rezaee
- Inflammation and Inflammatory Diseases Research Centre, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
86
|
Pérez de los Santos AI, Cayetano-Cruz M, Gutiérrez-Antón M, Santiago-Hernández A, Plascencia-Espinosa M, Farrés A, Hidalgo-Lara ME. Improvement of catalytical properties of two invertases highly tolerant to sucrose after expression in Pichia pastoris . Effect of glycosylation on enzyme properties. Enzyme Microb Technol 2016; 83:48-56. [DOI: 10.1016/j.enzmictec.2015.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 11/16/2022]
|
87
|
Chahardooli M, Niazi A, Aram F, Sohrabi SM. Expression of recombinant Arabian camel lactoferricin-related peptide in Pichia pastoris and its antimicrobial identification. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:569-575. [PMID: 25655077 DOI: 10.1002/jsfa.7125] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 02/02/2015] [Accepted: 02/02/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Lactoferricin (LFcin) is a strong cationic peptide released from the N-terminus of lactoferrin by gastric pepsin digestion. LFcin has some important properties, including high antimicrobial activity. To date, lactoferricins have been isolated and characterised from various animal species, but not from camel. The aim of this study was to characterise and express recombinant camel lactoferricin (LFcinC) in Pichia pastoris and investigate its antimicrobial activity. RESULTS After methanol induction, LFcinC was expressed and secreted into a culture broth medium and the results determined by concentrated supernatant culture medium showed high antimicrobial activity against the following microorganisms: Escherichia coli PTCC 1330 (ATCC 8739), Staphylococcus aureus PTCC 1112 (ATCC 6538), Pseudomonas aeruginosa PTCC 1074 (ATCC 9027), Bacillus subtilis PTCC 1023 (ATCC 6633), and Candida albicans PTCC 5027 (ATCC 10231). Thermal stability was clarified with antibacterial activity against Escherichia coli PTCC 1330 (ATCC 8739). CONCLUSION Results confirmed that camel lactoferricin had suitable antimicrobial activity and its production by Pichia pastoris can be used for recombinant production.
Collapse
Affiliation(s)
| | - Ali Niazi
- Biotechnology Center, College of Agriculture, Shiraz University, Islamic Republic of Iran
| | - Farzaneh Aram
- Institute of Biotechnology, Shiraz University, Islamic Republic of Iran
| | | |
Collapse
|
88
|
Lewin JJ, Choi EJ, Ling G. Pharmacy on demand: New technologies to enable miniaturized and mobile drug manufacturing. Am J Health Syst Pharm 2016; 73:45-54. [DOI: 10.2146/ajhp150639] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- John J. Lewin
- Johns Hopkins Hospital and Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Geoffrey Ling
- Biological Technologies Office, Defense Advanced Research Projects Agency, Arlington, VA
| |
Collapse
|
89
|
Yeast Expression Systems for Industrial Biotechnology. Fungal Biol 2016. [DOI: 10.1007/978-3-319-27951-0_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
90
|
Woon JSK, Mackeen MM, Mahadi NM, Illias RM, Abdul Murad AM, Abu Bakar FD. Expression and characterization of a cellobiohydrolase (CBH7B) from the thermophilic fungusThielavia terrestrisinPichia pastoris. Biotechnol Appl Biochem 2015; 63:690-698. [DOI: 10.1002/bab.1431] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 08/06/2015] [Indexed: 11/06/2022]
Affiliation(s)
- James Sy-Keen Woon
- School of Biosciences and Biotechnology, Faculty of Science and Technology; Universiti Kebangsaan Malaysia; Selangor Malaysia
| | - Mukram Mohamed Mackeen
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology; Universiti Kebangsaan Malaysia; Selangor Malaysia
- Institute of Systems Biology (INBIOSIS); Universiti Kebangsaan Malaysia; Selangor Malaysia
| | - Nor Muhammad Mahadi
- Institute of Systems Biology (INBIOSIS); Universiti Kebangsaan Malaysia; Selangor Malaysia
- Malaysia Genome Institute; Jalan Bangi Lama; Selangor Malaysia
| | - Rosli Md Illias
- Department of Bioprocess Engineering, Faculty of Chemical Engineering; Universiti Teknologi Malaysia; Johor Malaysia
| | - Abdul Munir Abdul Murad
- School of Biosciences and Biotechnology, Faculty of Science and Technology; Universiti Kebangsaan Malaysia; Selangor Malaysia
| | - Farah Diba Abu Bakar
- School of Biosciences and Biotechnology, Faculty of Science and Technology; Universiti Kebangsaan Malaysia; Selangor Malaysia
| |
Collapse
|
91
|
Chen H, Quintana J, Kovalchuk A, Ubhayasekera W, Asiegbu FO. A cerato-platanin-like protein HaCPL2 from Heterobasidion annosum sensu stricto induces cell death in Nicotiana tabacum and Pinus sylvestris. Fungal Genet Biol 2015; 84:41-51. [PMID: 26385823 DOI: 10.1016/j.fgb.2015.09.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 09/11/2015] [Accepted: 09/14/2015] [Indexed: 12/22/2022]
Abstract
The cerato-platanin family is a group of small secreted cysteine-rich proteins exclusive for filamentous fungi. They have been shown to be involved in the interactions between fungi and plants. Functional characterization of members from this family has been performed mainly in Ascomycota, except Moniliophthora perniciosa. Our previous phylogenetic analysis revealed that recent gene duplication of cerato-platanins has occurred in Basidiomycota but not in Ascomycota, suggesting higher functional diversification of this protein family in Basidiomycota than in Ascomycota. In this study, we identified three cerato-platanin homologues from the basidiomycete conifer pathogen Heterobasidion annosum sensu stricto. Expression of the homologues under various conditions as well as their roles in the H. annosum s.s.-Pinus sylvestris (Scots pine) pathosystem was investigated. Results showed that HaCPL2 (cerato-platanin-like protein 2) had the highest sequence similarity to cerato-platanin from Ceratocystis platani and hacpl2 was significantly induced during nutrient starvation and necrotrophic growth. The treatment with recombinant HaCPL2 induced cell death, phytoalexin production and defense gene expression in Nicotiana tabacum. Eliciting and cell death-inducing ability accompanied by retardation of apical root growth was also demonstrated in Scots pine seedlings. Our results suggest that HaCPL2 might contribute to the virulence of H. annosum s.s. by promoting plant cell death.
Collapse
Affiliation(s)
- Hongxin Chen
- Department of Forest Sciences, P.O. Box 27, Latokartanonkaari 7, 00014, University of Helsinki, Helsinki, Finland.
| | - Julia Quintana
- Department of Forest Sciences, P.O. Box 27, Latokartanonkaari 7, 00014, University of Helsinki, Helsinki, Finland
| | - Andriy Kovalchuk
- Department of Forest Sciences, P.O. Box 27, Latokartanonkaari 7, 00014, University of Helsinki, Helsinki, Finland
| | - Wimal Ubhayasekera
- Department of Cell and Molecular Biology, Uppsala University, Box 596, Biomedical Center, SE-751 24 Uppsala, Sweden
| | - Fred O Asiegbu
- Department of Forest Sciences, P.O. Box 27, Latokartanonkaari 7, 00014, University of Helsinki, Helsinki, Finland
| |
Collapse
|
92
|
Looser V, Bruhlmann B, Bumbak F, Stenger C, Costa M, Camattari A, Fotiadis D, Kovar K. Cultivation strategies to enhance productivity of Pichia pastoris: A review. Biotechnol Adv 2015; 33:1177-93. [DOI: 10.1016/j.biotechadv.2015.05.008] [Citation(s) in RCA: 169] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 05/11/2015] [Accepted: 05/25/2015] [Indexed: 12/14/2022]
|
93
|
Sreenivas S, Krishnaiah SM, Shyam Mohan AH, Mallikarjun N, Govindappa N, Chatterjee A, Sastry KN. Disruption of KEX1 gene reduces the proteolytic degradation of secreted two-chain Insulin glargine in Pichia pastoris. Protein Expr Purif 2015; 118:1-9. [PMID: 26470649 DOI: 10.1016/j.pep.2015.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 10/05/2015] [Accepted: 10/06/2015] [Indexed: 10/22/2022]
Abstract
Insulin glargine is a slow acting analog of insulin used in diabetes therapy. It is produced by recombinant DNA technology in different hosts namely E. coli and Pichia pastoris. In our previous study, we have described the secretion of fully folded two-chain Insulin glargine into the medium by over-expression of Kex2 protease. The enhanced levels of the Kex2 protease was responsible for the processing of the glargine precursor with in the host. Apart from the two-chain glargine product we observed a small proportion of arginine clipped species. This might be due to the clipping of arginine present at the C-terminus of the B-chain as it is exposed upon Kex2 cleavage. The carboxypeptidase precursor Kex1 is known to be responsible for clipping of C-terminal lysine or arginine of the proteins or peptides. In order to address this issue we created a Kex1 knock out in the host using Cre/loxP mechanism of targeted gene deletion. When two-chain glargine was expressed in the Kex1 knock out host of P. pastoris GS115 the C-terminal clipped species reduced by ∼80%. This modification further improved the process by reducing the levels of product related impurities.
Collapse
Affiliation(s)
- Suma Sreenivas
- Biocon Research Limited, Plot No. 2&3, Phase IV, Bommasandra-Jigani Link Road, Bangalore, 560099, Karnataka, India.
| | - Sateesh M Krishnaiah
- Molecular Diagnostics Laboratory, Dept. of Microbiology & Biotechnology, Bangalore University, JnanaBharathi Campus, Bangalore, 560 056, Karnataka, India
| | - Anil H Shyam Mohan
- Biocon Research Limited, Plot No. 2&3, Phase IV, Bommasandra-Jigani Link Road, Bangalore, 560099, Karnataka, India
| | - Niveditha Mallikarjun
- Biocon Research Limited, Plot No. 2&3, Phase IV, Bommasandra-Jigani Link Road, Bangalore, 560099, Karnataka, India
| | - Nagaraja Govindappa
- Biocon Research Limited, Plot No. 2&3, Phase IV, Bommasandra-Jigani Link Road, Bangalore, 560099, Karnataka, India
| | - Amarnath Chatterjee
- Biocon Research Limited, Plot No. 2&3, Phase IV, Bommasandra-Jigani Link Road, Bangalore, 560099, Karnataka, India
| | - Kedarnath N Sastry
- Biocon Research Limited, Plot No. 2&3, Phase IV, Bommasandra-Jigani Link Road, Bangalore, 560099, Karnataka, India
| |
Collapse
|
94
|
Engineering of Harobin for enhanced fibrinolytic activity obtained by random and site-directed mutagenesis. Protein Expr Purif 2015; 129:162-172. [PMID: 26363113 DOI: 10.1016/j.pep.2015.09.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/06/2015] [Accepted: 09/08/2015] [Indexed: 11/21/2022]
Abstract
We have previously published a report on the cloning and characterization of Harobin, a fibrinolytic serine protease. However, the broad application of this fibrinolytic enzyme is limited by its low expression level that was achieved in Pichia pastoris. To counteract this shortcoming, random and site-directed mutagenesis have been combined in order to improve functional expression and activity of Harobin. By screening 400 clones from random mutant libraries for enhanced fibrinolytic activity, two mutants were obtained: N111R, R230G. By performing site-directed mutagenesis, a Harobin double mutant, N111R/R230G, was constructed and can be functionally expressed at higher level than the wild type enzyme. In addition, it possessed much higher fibrinolytic and amidolytic activity than the wild type enzyme and other single mutants. The N111R/R230G expressed in basal salts medium was purified by a three step purification procedure. At pH of 6.0-9.0, and the temperature range of 40-90 °C, N111R/R230G was more active and more heat resistant. The fibrinolytic activities of Harobin mutants were completely inhibited by PMSF and SBTI, but not by EDTA, EGTA, DTT, indicating that Harobin is a serine protease. N111R/R230G showed much better anti-thrombosis effect than wild type Harobin and single mutants, and could significantly increase bleeding and clotting time. Intravenous injection of N111R/R230G in spontaneous hypertensive rats (SHR) led to a significant reduction in systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean arterial pressure (MAP) (p < 0.01), while heart rate (HR) was not affected. The in vitro and in vivo results of the present study revealed that Harobin double mutant N111R/R230G is an appropriate candidate for biotechnological applications due to its high expression level and high activity in area of thrombosis and hypertension.
Collapse
|
95
|
Park M, Kim M, Kim S, Ha B, Ro HS. Differential Expression of Laccase Genes in Pleurotus ostreatus and Biochemical Characterization of Laccase Isozymes Produced in Pichia pastoris. MYCOBIOLOGY 2015; 43:280-7. [PMID: 26539044 PMCID: PMC4630434 DOI: 10.5941/myco.2015.43.3.280] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 08/25/2015] [Accepted: 08/31/2015] [Indexed: 05/26/2023]
Abstract
In this study, transcriptome analysis of twelve laccase genes in Pleurotus ostreatus revealed that their expression was differentially regulated at different developmental stages. Lacc5 and Lacc12 were specifically expressed in fruiting bodies and primordia, respectively, whereas Lacc6 was expressed at all developmental stages. Lacc1 and Lacc3 were specific to the mycelial stage in solid medium. In order to investigate their biochemical characteristics, these laccases were heterologously expressed in Pichia pastoris using the pPICHOLI-2 expression vector. Expression of the laccases was facilitated by intermittent addition of methanol as an inducer and sole carbon source, in order to reduce the toxic effects associated with high methanol concentration. The highest expression was observed when the recombinant yeast cells were grown for 5 days at 15℃ with intermittent addition of 1% methanol at a 12-hr interval. Investigation of enzyme kinetics using 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) as a substrate revealed that the primordium-specific laccase Lacc12 was 5.4-fold less active than Lacc6 at low substrate concentration with respect to ABTS oxidation activity. The optimal pH and temperature of Lacc12 were 0.5 pH units and 5℃ higher than those of Lacc6. Lacc12 showed maximal activity at pH 3.5 and 50℃, which may reflect the physiological conditions at the primordiation stage.
Collapse
Affiliation(s)
- Minsa Park
- Division of Applied Life Science and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea
| | - Minseek Kim
- Division of Applied Life Science and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea
| | - Sinil Kim
- Division of Applied Life Science and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea
| | - Byeongsuk Ha
- Division of Applied Life Science and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea
| | - Hyeon-Su Ro
- Division of Applied Life Science and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea
| |
Collapse
|
96
|
Potvin G, Li Z, Zhang Z. Statistical Medium Optimization for the Increased Production of Recombinant Phytase in the Fed-Batch Cultivation of Pichia pastoris. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2015. [DOI: 10.1515/ijcre-2015-0055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Using a 20-run central composite design, standard Basal Salt Media (BSM) was optimized for the production of recombinant phytase by Pichia pastoris in bioreactor-based fed-batch cultivations using glucose as the carbon source. The phytase activity in the supernatant of the cultures at the end of 48-hour runs was modeled as a function of the medium composition, and this model was successfully validated. Using Inductively Coupled Plasma spectroscopy (ICP), residual elements were quantified in the cultivation broth at the end of each run to confirm that differences in final cell density and enzyme activity were not due to nutrient depletion, but indeed associated with the variations in medium composition. The optimized media contains significantly lower concentration of the potassium and magnesium sources (28.7 g/l KH2PO4 and 4.8 g/l MgSO4·7H2O respectively), as well as a reduced concentration of trace salts, and based on experimental results, significantly outperforms standard media in terms of recombinant product yields under the same conditions.
Collapse
|
97
|
Schlenzig D, Wermann M, Ramsbeck D, Moenke-Wedler T, Schilling S. Expression, purification and initial characterization of human meprin β from Pichia pastoris. Protein Expr Purif 2015; 116:75-81. [PMID: 26256061 DOI: 10.1016/j.pep.2015.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 07/30/2015] [Accepted: 08/03/2015] [Indexed: 12/26/2022]
Abstract
Human meprin β (h-meprin β), a single-zinc metalloendoprotease of the astacin family, is potentially involved in disorders such as fibrosis and Alzheimer's disease. Here, we describe the expression of the enzyme in the yeast Pichia pastoris. The N-terminal signal sequence was replaced by the α-leader of Saccharomyces, enabling efficient secretion of the mature enzyme, harboring either an N-terminal or C-terminal His-tag. The purification by affinity and hydrophobic interaction chromatography resulted in isolation of 58.4 mg/l of homogenous human pro-meprin β from fermentation broth. The activated enzyme isolated from yeast (yh-meprin β) displayed virtually identical enzymatic activity as h-meprin from a mammalian cell line. Furthermore, the yh-meprin β was N-glycosylated and secreted as a dimer with a molecular mass of 148 kDa. Endoglycosidase H treatment generated a protein with a molecular mass of 133 kDa, but essentially unchanged kinetic parameters. Thus, our data suggest that human meprin β expressed in P. pastoris displays virtually identical parameters as meprin from other sources. The high yield of protein expression, the ease of purification and the deglycosylation in its native state appear to favor further studies aiming at inhibitor screening and structure-based inhibitor refinement.
Collapse
Affiliation(s)
- D Schlenzig
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Drug Design and Target Validation (IZI-MWT), Weinbergweg 22, 06120 Halle/Saale, Germany
| | - M Wermann
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Drug Design and Target Validation (IZI-MWT), Weinbergweg 22, 06120 Halle/Saale, Germany
| | - D Ramsbeck
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Drug Design and Target Validation (IZI-MWT), Weinbergweg 22, 06120 Halle/Saale, Germany
| | - T Moenke-Wedler
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Drug Design and Target Validation (IZI-MWT), Weinbergweg 22, 06120 Halle/Saale, Germany
| | - S Schilling
- Fraunhofer Institute for Cell Therapy and Immunology, Department of Drug Design and Target Validation (IZI-MWT), Weinbergweg 22, 06120 Halle/Saale, Germany.
| |
Collapse
|
98
|
|
99
|
Mei X, Shpigelman A, Verrijssen TA, Kyomugasho C, Luo Y, Van Loey AM, Michiels C, Huang K, Hendrickx ME. Recombinant kiwi pectin methylesterase inhibitor: Purification and characterization of the interaction with plant pectin methylesterase during thermal and high-pressure processing. INNOV FOOD SCI EMERG 2015. [DOI: 10.1016/j.ifset.2015.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
100
|
Chen Y, Huang JW, Chen CC, Lai HL, Jin J, Guo RT. Crystallization and preliminary X-ray diffraction analysis of an endo-1,4-β-D-glucanase from Aspergillus aculeatus F-50. Acta Crystallogr F Struct Biol Commun 2015; 71:397-400. [PMID: 25849498 PMCID: PMC4388172 DOI: 10.1107/s2053230x15003659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 02/21/2015] [Indexed: 11/10/2022] Open
Abstract
Cellulose is the most abundant renewable biomass on earth, and its decomposition has proven to be very useful in a wide variety of industries. Endo-1,4-β-D-glucanase (EC 3.2.1.4; endoglucanase), which can catalyze the random hydrolysis of β-1,4-glycosidic bonds to cleave cellulose into smaller fragments, is a key cellulolytic enzyme. An endoglucanase isolated from Aspergillus aculeatus F-50 (FI-CMCase) that was classified into glycoside hydrolase family 12 has been found to be effectively expressed in the industrial strain Pichia pastoris. Here, recombinant FI-CMCase was crystallized. Crystals belonging to the orthorhombic space group C222₁, with unit-cell parameters a = 74.2, b = 75.1, c = 188.4 Å, were obtained by the sitting-drop vapour-diffusion method and diffracted to 1.6 Å resolution. Initial phase determination by molecular replacement clearly shows that the crystal contains two protein molecules in the asymmetric unit. Further model building and structure refinement are in progress.
Collapse
Affiliation(s)
- Yun Chen
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, People’s Republic of China
| | - Jian-Wen Huang
- Genozyme Biotechnology Inc., Taipei 106, Taiwan
- AsiaPac Biotechnology Co. Ltd, Dongguan 523808, People’s Republic of China
| | - Chun-Chi Chen
- Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People’s Republic of China
| | - Hui-Lin Lai
- Genozyme Biotechnology Inc., Taipei 106, Taiwan
- AsiaPac Biotechnology Co. Ltd, Dongguan 523808, People’s Republic of China
| | - Jian Jin
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, People’s Republic of China
| | - Rey-Ting Guo
- Industrial Enzymes National Engineering Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People’s Republic of China
| |
Collapse
|