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Dong J, Fu XM, Wang PF, Dong SS, Li X, Xiao DG, Zhang CY. Construction of industrial baker's yeast with high level of cAMP. J Food Biochem 2019; 43:e12846. [PMID: 31353733 DOI: 10.1111/jfbc.12846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/16/2019] [Accepted: 03/06/2019] [Indexed: 11/29/2022]
Abstract
Cyclic adenosine monophosphate (cAMP) plays an important role in modulating the activity of microbe cell. In this study, PKA (protein kinase A) activity was weakened through truncation of TPK2 promoter (-150 bp and -300 bp) and gene deletion of BCY1 (encodes the regulatory subunit of PKA), TPK1 and TPK3, generating strains BY9a-T2-150 and BY9a-T2-300, respectively. High-performance liquid chromatography analysis showed cAMP levels in BY9a-T2-150 and BY9a-T2-300 were increased by 5- and 18-fold, respectively, compared with that of parent strain, BY9a. The expression levels of TPK2 gene in two engineered strains were decreased by 95% and 97% compared with that of BY9a, respectively. The PKA activity reflected by heat resistance of engineered strains enhanced compared with parent strain BY9a. This study show a new method to increase the intracellular cAMP concentration in industrial yeast by fine-tuning of PKA activity, without influence in growth and fermentation properties. PRACTICAL APPLICATIONS: cAMP as the "second messenger," is essential for plant, animal, and microorganisms and human life. But its synthesis is still limited by expensive cost and time-consuming method. We constructed the industrial baker's yeast with high level of cAMP and desired to be used to produce functional food for relaxing smooth muscle, expanding blood vessels, improving liver function, and promoting nerve regeneration and as a food additive for treating hyperthyreosis and hepatopathy. The methods of two step homologous recombination and backcross operated in this study eliminate the exogenous gene in engineered strains, made it safety to be used in food production. Fine-tuning of PKA activity in engineered strains ensure produce high level of cAMP and exhibit normal growth performance in engineering strains. Therefore, this work is significant in functional foods product and has the potential to be used in practical application.
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Affiliation(s)
- Jian Dong
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Xiao-Meng Fu
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Peng-Fei Wang
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Sheng-Sheng Dong
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Xiao Li
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Dong-Guang Xiao
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, P. R. China
| | - Cui-Ying Zhang
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key Laboratory, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, P. R. China
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Production of cyclic adenosine-3′,5′-monophosphate by whole cell catalysis using recombinant Escherichia coli overexpressing adenylate cyclase. KOREAN J CHEM ENG 2013. [DOI: 10.1007/s11814-012-0202-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cloning, expression, and characterization of an adenylate cyclase from Arthrobacter sp. CGMCC 3584. Appl Microbiol Biotechnol 2012; 96:963-70. [DOI: 10.1007/s00253-012-3890-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 12/29/2011] [Accepted: 01/04/2012] [Indexed: 11/25/2022]
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Song H, Chen X, Cao J, Fang T, Bai J, Xiong J, Ying H. Directed breeding of an Arthrobacter mutant for high-yield production of cyclic adenosine monophosphate by N+ ion implantation. Radiat Phys Chem Oxf Engl 1993 2010. [DOI: 10.1016/j.radphyschem.2010.03.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Marais G, Ghisalba O. Chemo-enzymatic synthesis of 2'-O-methoxyethyl ribonucleosides using a phosphodiesterase from Serratia marcescens. Appl Microbiol Biotechnol 2004; 66:512-9. [PMID: 15349700 DOI: 10.1007/s00253-004-1718-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2004] [Revised: 07/12/2004] [Accepted: 07/17/2004] [Indexed: 11/29/2022]
Abstract
An enzyme able to cleave the 3',5'-phosphate ring of 2'-methoxyethyl cyclic nucleotides (3',5'-cyclic nucleotide phosphodiesterase, EC 3.1.4.17) from Serratia marcescens DSM 30121 was used to deprotect the cyclic phosphate nucleotides after chemical alkylation. The process yielded 2'-O-alkylated nucleosides used as building blocks of antisense oligonucleotides for subsequent potential applications in therapeutics (antisense oligonucleotide synthesis) and diagnostics. The phosphodiesterase from the Gram-negative enteric bacterium S. marcescens was selected on account of the broad substrate range and high activity of the enzyme. The protein was purified by heat-treatment of the crude cell-free extract, followed by column chromatography (gel filtration). It was characterised and showed optimal activity at a broad pH range (pH 6.8-9.4, with a peak at ca. pH 8.5) and at a temperature of 60-65 degrees C. No metal ions were required for activity, although Ba2+ was an activator. Conversion of 2'-O-methoxyethyl cAMP into the corresponding nucleoside derivative on a multi-gram scale was successfully performed in two steps, using the S. marcescens enzyme in conjunction with a commercially available alkaline phosphatase from Escherichia coli.
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Affiliation(s)
- Guy Marais
- Novartis Pharma AG, Novartis Institutes of Biomedical Research, Discovery Technologies, 4002 Basel, Switzerland
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Strobel H, Ladant D, Jestin JL. In vitro selection for enzymatic activity: a model study using adenylate cyclase. J Mol Biol 2003; 332:1-7. [PMID: 12946341 DOI: 10.1016/s0022-2836(03)00920-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An in vitro enzyme selection that can, in principle, be generalised to most chemical reactions, is described. It makes use of filamentous phage display and of a tailor-made antibody fragment directed against the reaction product. The conversion of ATP into 3',5'-cyclic AMP catalysed by Bordetella pertussis adenylate cyclase is taken as an example.
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Affiliation(s)
- Heike Strobel
- Unité de Chimie Organique, Institut Pasteur, 28 rue du Dr Roux, 75724 Paris 15, France
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Abstract
Cyclic AMP (cAMP) is found in a variety of prokaryotes including both eubacteria and archaebacteria. cAMP plays a role in regulating gene expression, not only for the classic inducible catabolic operons, but also for other categories. In the enteric coliforms, the effects of cAMP on gene expression are mediated through its interaction with and allosteric modification of a cAMP-binding protein (CRP). The CRP-cAMP complex subsequently binds specific DNA sequences and either activates or inhibits transcription depending upon the positioning of the complex relative to the promoter. Enteric coliforms have provided a model to explore the mechanisms involved in controlling adenylate cyclase activity, in regulating adenylate cyclase synthesis, and in performing detailed examinations of CRP-cAMP complex-regulated gene expression. This review summarizes recent work focused on elucidating the molecular mechanisms of CRP-cAMP complex-mediated processes. For other bacteria, less detail is known. cAMP has been implicated in regulating antibiotic production, phototrophic growth, and pathogenesis. A role for cAMP has been suggested in nitrogen fixation. Often the only data that support cAMP involvement in these processes includes cAMP measurement, detection of the enzymes involved in cAMP metabolism, or observed effects of high concentrations of the nucleotide on cell growth.
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Affiliation(s)
- J L Botsford
- Department of Biology, New Mexico State University, Las Cruces 88003
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Sarfati RS, Namane A, Munier H, Bârzu O. New fluorescent and photoactivable analogs acting on nucleotide binding enzymes. Tetrahedron Lett 1991. [DOI: 10.1016/s0040-4039(00)92285-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Van Lookeren Campagne MM, Villalba Díaz F, Chason KW, Kessin RH. Enzymatic synthesis of the cAMP antagonist (Rp)-adenosine 3',5'-monophosphorothioate on a preparative scale. Anal Biochem 1990; 188:86-90. [PMID: 2171377 DOI: 10.1016/0003-2697(90)90531-d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
(Rp)-Adenosine 3',5'-monophosphorothioate ((Rp)-cAMPS) is a highly specific antagonist of the cAMP-dependent protein kinase from eukaryotic cells and is a very poor substrate for phosphodiesterases. It is therefore a useful tool for investigating the role of cAMP as a second messenger in a variety of biological systems. Taking advantage of stereospecific inversion of configuration around the alpha-phosphate during the adenylate cyclase reaction, we have developed a method for the preparative enzymatic synthesis of the Rp diastereomer of adenosine 3',5'-monophosphorothioate ((Rp)-cAMPS) from the Sp diastereomer of adenosine 5'-O-(1-thiotriphosphate) ((Sp)-ATP alpha S). The adenylate cyclase from Bordetella pertussis, partially purified by calmodulin affinity chromatography, cyclizes (Sp)-ATP alpha S approximately 40-fold more slowly than ATP, but binds (Sp)-ATP alpha S with about 10-fold higher affinity than ATP. The triethylammonium salt of the reaction product can be purified by elution from a gravity flow reversed-phase C18 column with a linear gradient of increasing concentrations of methanol. Yields of the pure (Rp)-cAMPS product of a synthesis with 2 mg of substrate are about 75%.
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Affiliation(s)
- M M Van Lookeren Campagne
- Department of Anatomy and Cell Biology, College of Physicians and Surgeons, Columbia University, New York, New York 10032
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