2
|
Hou Y, Chen S, Wang J, Liu G, Wu S, Tao Y. Isolating promoters from Corynebacterium ammoniagenes ATCC 6871 and application in CoA synthesis. BMC Biotechnol 2019; 19:76. [PMID: 31718625 PMCID: PMC6849255 DOI: 10.1186/s12896-019-0568-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 10/10/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Corynebacterium ammoniagenes is an important industrial organism that is widely used to produce nucleotides and the potential for industrial production of coenzyme A by C. ammoniagenes ATCC 6871 has been shown. However, the yield of coenzyme A needs to be improved, and the available constitutive promoters are rather limited in this strain. RESULTS In this study, 20 putative DNA promoters derived from genes with high transcription levels and 6 promoters from molecular chaperone genes were identified. To evaluate the activity of each promoter, red fluorescence protein (RFP) was used as a reporter. We successfully isolated a range of promoters with different activity levels, and among these a fragment derived from the upstream sequence of the 50S ribosomal protein L21 (Prpl21) exhibited the strongest activity among the 26 identified promoters. Furthermore, type III pantothenate kinase from Pseudomonas putida (PpcoaA) was overexpressed in C. ammoniagenes under the control of Prpl21, CoA yield increased approximately 4.4 times. CONCLUSIONS This study provides a paradigm for rational isolation of promoters with different activities and their application in metabolic engineering. These promoters will enrich the available promoter toolkit for C. ammoniagenes and should be valuable in current platforms for metabolic engineering and synthetic biology for the optimization of pathways to extend the product spectrum or improve the productivity in C. ammoniagenes ATCC 6871 for industrial applications.
Collapse
Affiliation(s)
- Yingshuo Hou
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Siyu Chen
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Jianjun Wang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Guizhen Liu
- Kaiping Genuine Biochemical Pharmaceutical Co. Ltd, Kaiping, People's Republic of China
| | - Sheng Wu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.
| | - Yong Tao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.
| |
Collapse
|
3
|
Duncan D, Auclair K. The coenzyme A biosynthetic pathway: A new tool for prodrug bioactivation. Arch Biochem Biophys 2019; 672:108069. [PMID: 31404525 DOI: 10.1016/j.abb.2019.108069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/05/2019] [Accepted: 08/08/2019] [Indexed: 11/29/2022]
Abstract
Prodrugs account for more than 5% of pharmaceuticals approved worldwide. Over the past decades several prodrug design strategies have been firmly established; however, only a few functional groups remain amenable to this approach. The aim of this overview is to highlight the use of coenzyme A (CoA) biosynthetic enzymes as a recently explored bioactivation scheme and provide information about its scope of utility. This emerging tool is likely to have a strong impact on future medicinal and biological studies as it offers promiscuity, orthogonal selectivity, and the capability of assembling exceptionally large molecules.
Collapse
Affiliation(s)
- Dustin Duncan
- Department of Chemistry, McGill University, Sherbrooke Street West, Montreal, Quebec, H3A 0B8, Canada
| | - Karine Auclair
- Department of Chemistry, McGill University, Sherbrooke Street West, Montreal, Quebec, H3A 0B8, Canada.
| |
Collapse
|
4
|
Richts B, Rosenberg J, Commichau FM. A Survey of Pyridoxal 5'-Phosphate-Dependent Proteins in the Gram-Positive Model Bacterium Bacillus subtilis. Front Mol Biosci 2019; 6:32. [PMID: 31134210 PMCID: PMC6522883 DOI: 10.3389/fmolb.2019.00032] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 04/18/2019] [Indexed: 11/13/2022] Open
Abstract
The B6 vitamer pyridoxal 5′-phosphate (PLP) is a co-factor for proteins and enzymes that are involved in diverse cellular processes. Therefore, PLP is essential for organisms from all kingdoms of life. Here we provide an overview about the PLP-dependent proteins from the Gram-positive soil bacterium Bacillus subtilis. Since B. subtilis serves as a model system in basic research and as a production host in industry, knowledge about the PLP-dependent proteins could facilitate engineering the bacteria for biotechnological applications. The survey revealed that the majority of the PLP-dependent proteins are involved in metabolic pathways like amino acid biosynthesis and degradation, biosynthesis of antibacterial compounds, utilization of nucleotides as well as in iron and carbon metabolism. Many PLP-dependent proteins participate in de novo synthesis of the co-factors biotin, folate, heme, and NAD+ as well as in cell wall metabolism, tRNA modification, regulation of gene expression, sporulation, and biofilm formation. A surprisingly large group of PLP-dependent proteins (29%) belong to the group of poorly characterized proteins. This review underpins the need to characterize the PLP-dependent proteins of unknown function to fully understand the “PLP-ome” of B. subtilis.
Collapse
Affiliation(s)
- Björn Richts
- Department of General Microbiology, University of Goettingen, Göttingen, Germany
| | - Jonathan Rosenberg
- Department of General Microbiology, University of Goettingen, Göttingen, Germany
| | - Fabian M Commichau
- Department of General Microbiology, University of Goettingen, Göttingen, Germany
| |
Collapse
|
5
|
Ogata Y, Chohnan S. Prokaryotic type III pantothenate kinase enhances coenzyme A biosynthesis in Escherichia coli. J GEN APPL MICROBIOL 2016; 61:266-9. [PMID: 26782658 DOI: 10.2323/jgam.61.266] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Yuta Ogata
- Department of Applied Life Science, United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology
| | | |
Collapse
|
6
|
Hondo S, Takahashi M, Osanai T, Matsuda M, Hasunuma T, Tazuke A, Nakahira Y, Chohnan S, Hasegawa M, Asayama M. Genetic engineering and metabolite profiling for overproduction of polyhydroxybutyrate in cyanobacteria. J Biosci Bioeng 2015; 120:510-7. [PMID: 26055446 DOI: 10.1016/j.jbiosc.2015.03.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 02/28/2015] [Accepted: 03/03/2015] [Indexed: 11/15/2022]
Abstract
Genetic engineering and metabolite profiling for the overproduction of polyhydroxybutyrate (PHB), which is a carbon material in biodegradable plastics, were examined in the unicellular cyanobacterium Synechocystis sp. PCC 6803. Transconjugants harboring cyanobacterial expression vectors that carried the pha genes for PHB biosynthesis were constructed. The overproduction of PHB by the engineering cells was confirmed through microscopic observations using Nile red, transmission electron microscopy (TEM), or nuclear magnetic resonance (NMR). We successfully recovered PHB from transconjugants prepared from nitrogen-depleted medium without sugar supplementation in which PHB reached approximately 7% (w/w) of the dry cell weight, showing a value of 12-fold higher productivity in the transconjugant than that in the control strain. We also measured the intracellular levels of acetyl-CoA, acetoacetyl-CoA, and 3-hydroxybutyryl-CoA (3HB-CoA), which are intermediate products for PHB. The results obtained indicated that these products were absent or at markedly low levels when cells were subjected to the steady-state growth phase of cultivation under nitrogen depletion for the overproduction of bioplastics. Based on these results, efficient factors were discussed for the overproduction of PHB in recombinant cyanobacteria.
Collapse
Affiliation(s)
- Sayaka Hondo
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan
| | - Masatoshi Takahashi
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan
| | - Takashi Osanai
- Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan; RIKEN Genomic Sciences Center, 1-7-22 Suehiro-cho, Yokohama 230-0045, Japan
| | - Mami Matsuda
- Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan; Organization of Advanced Science and Technology, Kobe University, 1-1 Rokkodai, Kobe 657-8501, Japan
| | - Tomohisa Hasunuma
- Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan; Organization of Advanced Science and Technology, Kobe University, 1-1 Rokkodai, Kobe 657-8501, Japan
| | - Akio Tazuke
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan
| | - Yoichi Nakahira
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan
| | - Shigeru Chohnan
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan
| | - Morifumi Hasegawa
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan
| | - Munehiko Asayama
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan.
| |
Collapse
|