1
|
Siziya IN, Lim HJ, Baek S, Lee S, Seo MJ. Mannosidase-inhibiting iminosugar production by recombinant Corynebacterium glutamicum harboring the 1-deoxynojirimycin biosynthetic gene cluster. Int J Biol Macromol 2024; 278:134858. [PMID: 39163968 DOI: 10.1016/j.ijbiomac.2024.134858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 08/12/2024] [Accepted: 08/17/2024] [Indexed: 08/22/2024]
Abstract
The iminosugar class of carbohydrate-active enzyme inhibitors has therapeutic applications in metabolic syndrome conditions, viral infections and cancer. Compared to chemical synthesis, microbial iminosugar production has benefits of cost, sustainability and optimization. In this study, the 1-deoxynojirimycin (DNJ) biosynthetic gene cluster from Bacillus velezensis MBLB0692, and its individual genes, were cloned into Corynebacterium glutamicum (Cg). Characterizations of the encoded aminotransferase GabT1, phosphatase Yktc1, and dehydrogenase GutB1, were performed with purified enzymes and whole cell biocatalysts bearing individual and clustered (TYB) genes. GabT1 showed a variable pattern in its half-reaction with a slow turnover. GutB1 was an alkaline dehydrogenase with a broad substrate specificity and no divalent ion dependency while the zinc-dependent phosphatase Yktc1 had substrate specificity that was both pH- and ion-dependent. The CgYktc1 and CgGutB1 whole cells were viable biocatalysts with wider ranges of substrates than their enzyme counterparts. The CgTYB cells produced mannosidase-inhibiting iminosugars corresponding to mannojirimycin dehydrate (162 m/z) and deoxymannojirimycin (164 m/z). Mannosidase inhibitors have been found to be effective in treating orphan diseases, cancer and viral infections, and their biosynthesis by recombinant C. glutamicum can be optimized for industrial production and novel drug development.
Collapse
Affiliation(s)
- Inonge Noni Siziya
- Division of Bioengineering, Incheon National University, Incheon 22012, Republic of Korea; Research Center for Bio Materials & Process Development, Incheon National University, Incheon 22012, Republic of Korea
| | - Hyo Jung Lim
- Department of Bioengineering and Nano-Bioengineering, Graduate School of Incheon National University, Incheon 22012, Republic of Korea
| | - Suhyeon Baek
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, Republic of Korea
| | - Sanggil Lee
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, Republic of Korea; Department of Food Science and Nutrition, College of Fisheries Science, Pukyong National University, Busan 48513, Republic of Korea
| | - Myung-Ji Seo
- Division of Bioengineering, Incheon National University, Incheon 22012, Republic of Korea; Research Center for Bio Materials & Process Development, Incheon National University, Incheon 22012, Republic of Korea; Department of Bioengineering and Nano-Bioengineering, Graduate School of Incheon National University, Incheon 22012, Republic of Korea.
| |
Collapse
|
2
|
Xin X, Jiang X, Thomas A, Niu B, Zhang M, Xu X, Zhang R, Li H, Gui Z. Studies on 1-deoxynojirimycin biosynthesis in mulberry ( Morus alba L.) seeds through comparative transcriptomics. Nat Prod Res 2024; 38:2585-2594. [PMID: 36945193 DOI: 10.1080/14786419.2023.2190114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/07/2023] [Indexed: 03/23/2023]
Abstract
Mulberry (Morus alba L.) plants are rich in 1-deoxynojirimycin (DNJ), which is a potential α-glucosidase inhibitor exhibiting various physiological activities. Compared to other tissues, Morus alba L. seeds contain the highest DNJ content, however, the DNJ biosynthesis mechanisms are unclear. In this study, we examined fruits of 27 mulberry varieties and found that variety MS02 had the highest DNJ levels (22.28 mg/g), whereas variety MS15 contained the lowest DNJ levels (0.37 mg/g). Through comparative transcriptomics, 1,719 differentially expressed genes (DEGs) were identified, 1,170 of which were upregulated, and 549 were downregulated in MS02 compared to MS15. DEGs were associated with cellular processes, metabolic processes, and catalytic activity. Specifically, nine DEGs were identified to be involved in alkaloid biosynthesis pathways, according to Kyoto Encyclopaedia of Genes and Genomes enrichment analysis, and four enzymes, i.e. polyphenol oxidase, tyrosine aminotransferase, aromatic-L-amino-acid decarboxylase, and tropinone reductase, are proposed to play important roles in DNJ biosynthesis. In conclusion, DNJ biosynthesis in mulberry seeds appears to be mediated by upregulation of polyphenol oxidase, tyrosine aminotransferase, aromatic-L-amino-acid decarboxylase, and tropinone reductase.
Collapse
Affiliation(s)
- Xiangdong Xin
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Xueping Jiang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Attaribo Thomas
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- School of Agriculture, C. K. Tedam University of Technology and Applied Science, Navrongo, Upper East, Ghana
| | - Baoxin Niu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Minqi Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Xueming Xu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Ran Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, China
| | - Hao Li
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, China
| | - Zhongzheng Gui
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, China
| |
Collapse
|
3
|
Zhu Y, Chen P, Dong Q, Li Q, Liu D, Liu T, Liu W, Sun Y. Protein engineering of transaminase facilitating enzyme cascade reaction for the biosynthesis of azasugars. iScience 2024; 27:109034. [PMID: 38433920 PMCID: PMC10904899 DOI: 10.1016/j.isci.2024.109034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 12/28/2023] [Accepted: 01/23/2024] [Indexed: 03/05/2024] Open
Abstract
Azasugars, such as 1-deoxynojirimycin (1-DNJ), exhibit unique physiological functions and hold promising applications in medicine and health fields. However, the biosynthesis of 1-DNJ is hindered by the low activity and thermostability of the transaminase. In this study, the transaminase from Mycobacterium vanbaalenii (MvTA) with activity toward d-fructose was engineered through semi-rational design and high-throughput screening method. The final mutant M9-1 demonstrated a remarkable 31.2-fold increase in specific activity and an impressive 200-fold improvement in thermostability compared to the wild-type enzyme. Molecular dynamics (MD) simulations revealed that the mutation sites of H69R and K145R in M9-1 played crucial roles in the binding of the amino acceptor and donor, leading to the stable conformation of substrates within the active pocket. An enzyme cascade reaction was developed using M9-1 and the dehydrogenase from Paenibacillus polymyxa (GutB1) for the production of mannojirimycin (MJ), which provided a new idea for the in vitro biosynthesis of 1-DNJ.
Collapse
Affiliation(s)
- Yueming Zhu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Peng Chen
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Qianzhen Dong
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Li
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Dechuan Liu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Tao Liu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Weidong Liu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Yuanxia Sun
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| |
Collapse
|
4
|
Li X, Zhang M, Lu Y, Wu N, Chen J, Ji Z, Zhan Y, Ma X, Chen J, Cai D, Chen S. Metabolic engineering of Bacillus amyloliquefaciens for efficient production of α-glucosidase inhibitor1-deoxynojirimycin. Synth Syst Biotechnol 2023; 8:378-385. [PMID: 37692204 PMCID: PMC10485785 DOI: 10.1016/j.synbio.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/13/2023] [Accepted: 05/16/2023] [Indexed: 09/12/2023] Open
Abstract
Owing to the feature of strong α-glucosidase inhibitory activity, 1-deoxynojirimycin (1-DNJ) has broad application prospects in areas of functional food, biomedicine, etc., and this research wants to construct an efficient strain for 1-DNJ production, basing on Bacillus amyloliquefaciens HZ-12. Firstly, using the temperature-sensitive shuttle plasmid T2 (2)-Ori, gene ptsG in phosphotransferase system (PTS) was weakened by homologous recombination, and non-PTS pathway was strengthened by deleting its repressor gene iolR, and 1-DNJ yield of resultant strain HZ-S2 was increased by 4.27-fold, reached 110.72 mg/L. Then, to increase precursor fructose-6-phosphate (F-6-P) supply, phosphofructokinase was weaken, fructose phosphatase GlpX and 6-phosphate glucose isomerase Pgi were strengthened by promoter replacement, moreover, regulator gene nanR was deleted, 1-DNJ yield was further increased to 267.37 mg/L by 2.41-fold. Subsequently, promoter of 1-DNJ synthetase cluster was optimized, as well as 5'-UTRs of downstream genes in synthetase cluster, and 1-DNJ produced by the final strain reached 478.62 mg/L. Last but not the least, 1-DNJ yield of 1632.50 mg/L was attained in 3 L fermenter, which was the highest yield of 1-DNJ reported to date. Taken together, our results demonstrated that metabolic engineering was an effective strategy for 1-DNJ synthesis, this research laid a foundation for industrialization of functional food and drugs based on 1-DNJ.
Collapse
Affiliation(s)
- Xujie Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Meng Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Yu Lu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ningyang Wu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Jian'gang Chen
- Wuhan Jun'an Biotechnology Co., Ltd., Wuhan, 430070, China
| | - Zhixia Ji
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yangyang Zhan
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Xin Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Junyong Chen
- Department of Urology, Zhuhai People's Hospital (Zhuhai Hospital Affiliated to Jinan University), Zhuhai, 519000, China
| | - Dongbo Cai
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Shouwen Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| |
Collapse
|
5
|
Straube H. Am-aza-ing antidiabetic: Mulberry dehydrogenase MnGUTB1 contributes to the biosynthesis of 1-deoxynojirimycin. PLANT PHYSIOLOGY 2023; 192:700-702. [PMID: 36880315 DOI: 10.1093/plphys/kiad140] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/16/2023] [Accepted: 02/19/2023] [Indexed: 06/01/2023]
Affiliation(s)
- Henryk Straube
- Plant Physiology, American Society of Plant Biologists, USA
- Faculty of Science, Department of Plant and Environmental Sciences, Section for Plant Biochemistry, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
6
|
Yang Z, Luo Y, Xia X, He J, Zhang J, Zeng Q, Li D, Ma B, Zhang S, Zhai C, Chen M, He N. Dehydrogenase MnGutB1 catalyzes 1-deoxynojirimycin biosynthesis in mulberry. PLANT PHYSIOLOGY 2023; 192:1307-1320. [PMID: 36800200 PMCID: PMC10231399 DOI: 10.1093/plphys/kiad065] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/04/2023] [Indexed: 06/01/2023]
Abstract
As the prevalence of diabetes continues to increase, the number of individuals living with diabetes complications will reach an unprecedented magnitude. Continuous use of some synthetic agents to reduce blood glucose levels causes severe side effects, and thus, the demand for nontoxic, affordable drugs persists. Naturally occurring compounds, such as iminosugars derived from the mulberry (Morus spp.), have been shown to reduce blood glucose levels. In mulberry, 1-deoxynojirimycin (DNJ) is the predominant iminosugar. However, the mechanism underlying DNJ biosynthesis is not completely understood. Here, we showed that DNJ in mulberry is derived from sugar and catalyzed through 2-amino-2-deoxy-D-mannitol (ADM) dehydrogenase MnGutB1. Combining both targeted and nontargeted metabolite profiling methods, DNJ and its precursors ADM and nojirimycin (NJ) were quantified in mulberry samples from different tissues. Purified His-tagged MnGutB1 oxidized the hexose derivative ADM to form the 6-oxo compound DNJ. The mutant MnGutB1 D283N lost this remarkable capability. Furthermore, in contrast to virus-induced gene silencing of MnGutB1 in mulberry leaves that disrupted the biosynthesis of DNJ, overexpression of MnGutB1 in hairy roots and light-induced upregulation of MnGutB1 enhanced DNJ accumulation. Our results demonstrated that hexose derivative ADM, rather than lysine derivatives, is the precursor in DNJ biosynthesis, and it is catalyzed by MnGutB1 to form the 6-oxo compound. These results represent a breakthrough in producing DNJ and its analogs for medical use by metabolic engineering or synthetic biology.
Collapse
Affiliation(s)
- Zhen Yang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Yiwei Luo
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Xiaoyu Xia
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Jinzhi He
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Jiajia Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Qiwei Zeng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Dong Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Bi Ma
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Shaoyu Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Changxin Zhai
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Miao Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Ningjia He
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| |
Collapse
|
7
|
Swanson CB, Ford GJ, Mattey AP, Gourbeyre L, Flitsch SL. Biocatalytic Cascades toward Iminosugar Scaffolds Reveal Promiscuous Activity of Shikimate Dehydrogenases. ACS CENTRAL SCIENCE 2023; 9:103-108. [PMID: 36712485 PMCID: PMC9881201 DOI: 10.1021/acscentsci.2c01169] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Indexed: 06/18/2023]
Abstract
Iminosugar scaffolds are highly sought-after pharmaceutical targets, but their chemical synthesis is lengthy and can suffer from poor scalability and purification. Here we report protecting-group-free chemoenzymatic and biocatalytic cascades to synthesize iminosugars from sugar-derived aminopolyols in two steps. Using galactose oxidase variant F2 followed by a chemical or enzymatic reduction provided an efficient one-pot route to these targets, with product formation >70%. Key to success of this strategy was the application of genome mining, which identified bacterial shikimate dehydrogenases as promiscuous iminosugar reductases. The cell-free protocols allowed for isolation of highly polar iminosugar products from biotransformations in a single step through development of a gradient-elution cation exchange purification. The two-step pathway provides a short synthetic route that can be used as a cell-free platform for broader iminosugar synthesis.
Collapse
|
8
|
Yeow K, Haarr MB, Muldoon J, O'Reilly E. Preparation of iminosugars from aminopolyols via selective oxidation using galactose oxidase. Chem Commun (Camb) 2022; 58:13640-13643. [PMID: 36409216 DOI: 10.1039/d2cc04989a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Minimally protected aminopolyols are novel substrates for the galactose oxidase variant F2. Site-selective oxidation proceeds at the terminal primary alcohol, followed by spontaneous cyclisation to afford stable hemiaminal/hemiacetal anomers of the piperidine and azepane scaffolds, with isolated yields of up to 94%. Simultaneous deprotection and reduction occured readily to afford valuable and biologically relevant iminosugars.
Collapse
Affiliation(s)
- Kathryn Yeow
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Marianne B Haarr
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Jimmy Muldoon
- Mass Spectrometry Facility, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Elaine O'Reilly
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland.
| |
Collapse
|
9
|
Lu Y, Cheng X, Deng H, Chen S, Ji Z. Improvement of 1-deoxynojirimycin production of Bacillus amyloliquefaciens by gene overexpression and medium optimization. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
10
|
Park JS, Kim DE, Hong SC, Kim SY, Kwon HC, Hyun CG, Choi J. Genome Analysis of Streptomyces nojiriensis JCM 3382 and Distribution of Gene Clusters for Three Antibiotics and an Azasugar across the Genus Streptomyces. Microorganisms 2021; 9:microorganisms9091802. [PMID: 34576698 PMCID: PMC8466323 DOI: 10.3390/microorganisms9091802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/15/2021] [Accepted: 08/18/2021] [Indexed: 11/29/2022] Open
Abstract
Streptomyces spp. have been major contributors of novel natural products that are used in many application areas. We found that the nojirimycin (NJ) producer JCM 3382 has antimicrobial activity against Staphylococcus aureus via cellular degradation. Genome analysis revealed 30 biosynthetic gene clusters, including those responsible for producing antibiotics, including an azasugar NJ. In-depth MS/MS analysis confirmed the production of 1-deoxynojirimycin (DNJ) along with NJ. In addition, the production of tambromycins, setomimycin, and linearmycins was verified by spectroscopic analyses, including LC-MS and NMR. The distribution of the clusters of genes coding for antibiotics in 2061 Streptomyces genomes suggested potential producers of tambromycin, setomimycin, and linearmycin. For a DNJ gene cluster, homologs of gabT1 and gutB1 were commonly found; however, yktC1 was identified in only 112 genomes. The presence of several types of clusters suggests that different strains may produce different types of azasugars. Chemical-profile-inspired comparative genome analysis may facilitate a more accurate assessment of the biosynthetic potential to produce secondary metabolites.
Collapse
Affiliation(s)
- Jin-Soo Park
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung 25451, Korea; (J.-S.P.); (D.-E.K.); (S.-C.H.); (H.C.K.)
| | - Da-Eun Kim
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung 25451, Korea; (J.-S.P.); (D.-E.K.); (S.-C.H.); (H.C.K.)
| | - Sung-Chul Hong
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung 25451, Korea; (J.-S.P.); (D.-E.K.); (S.-C.H.); (H.C.K.)
| | - Seung-Young Kim
- Department of Pharmaceutical Engineering & Biotechnology, Sunmoon University, Chungnam 31460, Korea;
| | - Hak Cheol Kwon
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung 25451, Korea; (J.-S.P.); (D.-E.K.); (S.-C.H.); (H.C.K.)
| | - Chang-Gu Hyun
- Department of Chemistry and Cosmetics, Jeju National University, Jeju 63243, Korea
- Correspondence: (C.-G.H.); (J.C.)
| | - Jaeyoung Choi
- Smart Farm Research Center, Korea Institute of Science and Technology, Gangneung 25451, Korea
- Correspondence: (C.-G.H.); (J.C.)
| |
Collapse
|
11
|
Beal HE, Horenstein NA. Comparative genomic analysis of azasugar biosynthesis. AMB Express 2021; 11:120. [PMID: 34424396 PMCID: PMC8382821 DOI: 10.1186/s13568-021-01279-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 08/13/2021] [Indexed: 11/13/2022] Open
Abstract
Azasugars are monosaccharide analogs in which the ring oxygen is replaced with a nitrogen atom. These well-known glycosidase inhibitors are of interest as therapeutics, yet several aspects of azasugars remain unknown including their distribution, structural diversity, and chemical ecology. The hallmark signature of bacterial azasugar biosynthesis is a three gene cluster (3GC) coding for aminotransferase, phosphatase, and dehydrogenase enzymes. Using the bioinformatics platform Enzyme Similarity Tool (EST), we identified hundreds of putative three gene clusters coding for azasugar production in microbial species. In the course of this work, we also report a consensus sequence for the aminotransferase involved in azasugar biosynthesis as being: SGNXFRXXXFPNXXXXXXXLXVPXPYCXRC. Most clusters are found in Bacillus and Streptomyces species which typically inhabit soil and the rhizosphere, but some clusters are found with diverse species representation such as Photorhabdus and Xenorhabdus which are symbiotic with entomopathogenic nematodes; the human skin commensal Cutibacterium acnes, and the marine Bacillus rugosus SPB7, a symbiont to the sea sponge Spongia officinalis. This pan-taxonomic survey of the azasugar 3GC signature may lead to the identification of new azasugar producers, facilitate studies of their natural functions, and lead to new potential therapeutics.
Collapse
|
12
|
Glucosidase Inhibitors Screening in Microalgae and Cyanobacteria Isolated from the Amazon and Proteomic Analysis of Inhibitor Producing Synechococcus sp. GFB01. Microorganisms 2021; 9:microorganisms9081593. [PMID: 34442672 PMCID: PMC8402191 DOI: 10.3390/microorganisms9081593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 11/17/2022] Open
Abstract
Microalgae and cyanobacteria are good sources for prospecting metabolites of biotechnological interest, including glucosidase inhibitors. These inhibitors act on enzymes related to various biochemical processes; they are involved in metabolic diseases, such as diabetes and Gaucher disease, tumors and viral infections, thus, they are interesting hubs for the development of new drugs and therapies. In this work, the screening of 63 environmental samples collected in the Brazilian Amazon found activity against β-glucosidase, of at least 60 min, in 13.85% of the tested extracts, with Synechococcus sp. GFB01 showing inhibitory activity of 90.2% for α-glucosidase and 96.9% against β-glucosidase. It was found that the nutritional limitation due to a reduction in the concentration of sodium nitrate, despite not being sufficient to cause changes in cell growth and photosynthetic apparatus, resulted in reduced production of α and β-glucosidase inhibitors and differential protein expression. The proteomic analysis of cyanobacteria isolated from the Amazon is unprecedented, with this being the first work to evaluate the protein expression of Synechococcus sp. GFB01 subjected to nutritional stress. This evaluation helps to better understand the metabolic responses of this organism, especially related to the production of inhibitors, adding knowledge to the industrial potential of these cyanobacterial compounds.
Collapse
|
13
|
Nguyen KN, Kim Y, Maibunkaew S, Park J, Nguyen MT, Oh DB, Kwon O. Enhanced Production of 1-Deoxynojirimycin in Bacillus subtilis subsp. inaquosorum by Random Mutagenesis and Culture Optimization. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-020-0231-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
14
|
Lee H, Jung DH, Seo DH, Chung WH, Seo MJ. Genome analysis of 1-deoxynojirimycin (1-DNJ)-producing Bacillus velezensis K26 and distribution of Bacillus sp. harboring a 1-DNJ biosynthetic gene cluster. Genomics 2020; 113:647-653. [PMID: 33010389 DOI: 10.1016/j.ygeno.2020.09.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 11/17/2022]
Abstract
1-Deoxynojirumycin (1-DNJ) is a representative iminosugar with α-glucosidase inhibition (AGI) activity. In this study, the full genome sequencing of 1-DNJ-producing Bacillus velezensis K26 was performed. The genome consists of a circular chromosome (4,047,350 bps) with two types of putative virulence factors, five antibiotic resistance genes, and seven secondary metabolite biosynthetic gene clusters. Genomic analysis of a wide range of Bacillus species revealed that a 1-DNJ biosynthetic gene cluster was commonly present in four Bacillus species (B. velezensis, B. pseudomycoides, B. amyloliquefaciens, and B. atrophaeus). In vitro experiments revealed that the increased mRNA expression levels of the three 1-DNJ biosynthetic genes were closely related to increased AGI activity. Genomic comparison and alignment of multiple gene sequences indicated the conservation of the 1-DNJ biosynthetic gene cluster in each Bacillus species. This genomic analysis of Bacillus species having a 1-DNJ biosynthetic gene cluster could provide a basis for further research on 1-DNJ-producing bacteria.
Collapse
Affiliation(s)
- Hyunjin Lee
- Department of Bioengineering and Nano-Bioengineering, Graduate School of Incheon National University, Incheon 22012, Republic of Korea
| | - Dong-Hyun Jung
- Bacteria Research Team, Nakdonggang National Institute of Biological Resources, Sangju 37242, Republic of Korea
| | - Dong-Ho Seo
- Department of Food Science and Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju 54896, Republic of Korea; Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Won-Hyong Chung
- Research Group of Healthcare, Korea Food Research Institute, Wanju 55365, Republic of Korea.
| | - Myung-Ji Seo
- Department of Bioengineering and Nano-Bioengineering, Graduate School of Incheon National University, Incheon 22012, Republic of Korea; Division of Bioengineering, Incheon National University, Incheon 22012, Republic of Korea.
| |
Collapse
|
15
|
Parida IS, Takasu S, Ito J, Ikeda R, Yamagishi K, Kimura T, Eitsuka T, Nakagawa K. Supplementation ofBacillus amyloliquefaciensAS385 culture broth powder containing 1-deoxynojirimycin in a high-fat diet altered the gene expressions related to lipid metabolism and insulin signaling in mice epididymal white adipose tissue. Food Funct 2020; 11:3926-3940. [DOI: 10.1039/d0fo00271b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supplementation ofBacillus amyloliquefaciensAS385 culture broth powder in high-fat diet restored adiposity, glucose tolerance and insulin sensitivity in mice.
Collapse
Affiliation(s)
- Isabella Supardi Parida
- Food and Biodynamic Chemistry Laboratory
- Graduate School of Agricultural Science
- Tohoku University
- Sendai
- Japan
| | - Soo Takasu
- Food and Biodynamic Chemistry Laboratory
- Graduate School of Agricultural Science
- Tohoku University
- Sendai
- Japan
| | - Junya Ito
- Food and Biodynamic Chemistry Laboratory
- Graduate School of Agricultural Science
- Tohoku University
- Sendai
- Japan
| | - Ryoichi Ikeda
- Food Research Laboratory
- Asahimatsu Foods Co
- Ltd
- Iida
- Nagano
| | - Kenji Yamagishi
- Food Research Institute (NFRI)
- National Agriculture and Food Research Organization (NARO)
- Tsukuba
- Japan
| | - Toshiyuki Kimura
- Food Research Institute (NFRI)
- National Agriculture and Food Research Organization (NARO)
- Tsukuba
- Japan
| | - Takahiro Eitsuka
- Food and Biodynamic Chemistry Laboratory
- Graduate School of Agricultural Science
- Tohoku University
- Sendai
- Japan
| | - Kiyotaka Nakagawa
- Food and Biodynamic Chemistry Laboratory
- Graduate School of Agricultural Science
- Tohoku University
- Sendai
- Japan
| |
Collapse
|
16
|
Nuñez C, Horenstein NA. Functional Analysis of a Gene Cluster from Chitinophaga pinensis Involved in Biosynthesis of the Pyrrolidine Azasugar DAB-1. JOURNAL OF NATURAL PRODUCTS 2019; 82:3401-3409. [PMID: 31793783 DOI: 10.1021/acs.jnatprod.9b00758] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Azasugars, "nitrogen in the ring" analogues of monosaccharides, are known to be distributed in select plant, fungal. and bacterial species. We identify Chitinophaga pinensis DSM 2588 as the first bacterial source of the plant pyrrolidine azasugar 1,4-dideoxy-1,4-aminoarabinitol (DAB-1). Comparative sequence analyses identified C. pinensis as a putative azasugar producer, via observation of a three-gene cluster coding for putative aminotransferase, alcohol dehydrogenase, and sugar phosphatase enzymes, similar to the previously reported azasugar biosynthetic signature identified in Bacillus amyloliquefaciens FZB42. Multistep fractionation of C. pinensis culture media guided by a maltase inhibition assay yielded a component with a mass consistent with the structure of DAB-1. Heterologous expression of the three-gene cluster in E. coli, a non-azasugar producer, led to the isolation of nectrisine, a biosynthetic precursor to DAB-1, which displayed potent slow tight binding inhibition of maltase. Reduction of nectrisine with NaBH4 removed the slow tight binding inhibition kinetics, and MS analysis provided evidence for the production of a compound matching that of the isolated DAB-1 from C. pinensis. 1H NMR analysis of the nectrisine produced in E. coli after NaBD4 reduction produced a spectrum consistent with DAB-1 deuterated at C-1, primarily at the pro-S position. These results support the idea that the azasugar three-gene cluster represents a general biosynthetic path leading to several different compounds, which may prove useful for the identification of other azasugar-producing organisms.
Collapse
Affiliation(s)
- Claribel Nuñez
- Department of Chemistry , University of Florida , Gainesville , Florida 32611-7200 , United States
| | - Nicole A Horenstein
- Department of Chemistry , University of Florida , Gainesville , Florida 32611-7200 , United States
| |
Collapse
|
17
|
An overview of the biological production of 1-deoxynojirimycin: current status and future perspective. Appl Microbiol Biotechnol 2019; 103:9335-9344. [DOI: 10.1007/s00253-019-10191-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/27/2019] [Accepted: 10/03/2019] [Indexed: 12/15/2022]
|
18
|
Thakur K, Zhang YY, Mocan A, Zhang F, Zhang JG, Wei ZJ. 1-Deoxynojirimycin, its potential for management of non-communicable metabolic diseases. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.05.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
19
|
PARIDA IS, TAKASU S, ITO J, IKEDA R, YAMAGISHI K, KIMURA T, MIYAZAWA T, EITSUKA T, NAKAGAWA K. Physiological Effects and Organ Distribution of Bacillus amyloliquefaciens AS385 Culture Broth Powder Containing 1-Deoxynojirimycin in C57BL/6J Mice. J Nutr Sci Vitaminol (Tokyo) 2019; 65:157-163. [DOI: 10.3177/jnsv.65.157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Isabella Supardi PARIDA
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Soo TAKASU
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Junya ITO
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | | | - Kenji YAMAGISHI
- Food Research Institute (NFRI), National Agriculture and Food Research Organization (NARO)
| | - Toshiyuki KIMURA
- Food Research Institute (NFRI), National Agriculture and Food Research Organization (NARO)
| | - Teruo MIYAZAWA
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
- New Industry Creation Hatchery Center (NICHe), Tohoku University
| | - Takahiro EITSUKA
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Kiyotaka NAKAGAWA
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| |
Collapse
|
20
|
Characterization of the PLP-dependent transaminase initiating azasugar biosynthesis. Biochem J 2018; 475:2241-2256. [PMID: 29907615 DOI: 10.1042/bcj20180340] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/08/2018] [Accepted: 06/14/2018] [Indexed: 11/17/2022]
Abstract
Biosynthesis of the azasugar 1-deoxynojirimycin (DNJ) critically involves a transamination in the first committed step. Here, we identify the azasugar biosynthetic cluster signature in Paenibacillus polymyxa SC2 (Ppo), homologous to that reported in Bacillus amyloliquefaciens FZB42 (Bam), and report the characterization of the aminotransferase GabT1 (named from Bam). GabT1 from Ppo exhibits a specific activity of 4.9 nmol/min/mg at 30°C (pH 7.5), a somewhat promiscuous amino donor selectivity, and curvilinear steady-state kinetics that do not reflect the predicted ping-pong behavior typical of aminotransferases. Analysis of the first half reaction with l-glutamate in the absence of the acceptor fructose 6-phosphate revealed that it was capable of catalyzing multiple turnovers of glutamate. Kinetic modeling of steady-state initial velocity data was consistent with a novel hybrid branching kinetic mechanism which included dissociation of PMP after the first half reaction to generate the apoenzyme which could bind PLP for another catalytic deamination event. Based on comparative sequence analyses, we identified an uncommon His-Val dyad in the PLP-binding pocket which we hypothesized was responsible for the unusual kinetics. Restoration of the conserved PLP-binding site motif via the mutant H119F restored classic ping-pong kinetic behavior.
Collapse
|
21
|
Takasu S, Parida IS, Onose S, Ito J, Ikeda R, Yamagishi K, Higuchi O, Tanaka F, Kimura T, Miyazawa T, Nakagawa K. Evaluation of the anti-hyperglycemic effect and safety of microorganism 1-deoxynojirimycin. PLoS One 2018; 13:e0199057. [PMID: 29897983 PMCID: PMC5999102 DOI: 10.1371/journal.pone.0199057] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/30/2018] [Indexed: 01/22/2023] Open
Abstract
1-Deoxynojirimycin (DNJ) is a potent α-glucosidase inhibitor and thus beneficial for prevention of diabetes. While we have succeeded in obtaining the culture supernatant extract (CSE) rich in DNJ from microorganism source, information regarding its anti-hyperglycemic effect and safety were still limited. Therefore, this study was aimed to evaluate the anti-hyperglycemic effect and safety of microorganism DNJ. Oral sucrose tolerance test was performed, and the result showed that CSE was able to significantly suppress the blood glucose elevation and suggested DNJ as the main active compound. To determine its safety, the absorption and excretion of microorganism DNJ were evaluated using 15N labeling method. Our findings investigated the recovery rate of 15N from DNJ reached 80% up to 48 hours after oral administration, suggesting its rapid excretion, suggesting the safety of DNJ. This study verified the functional properties and safety of DNJ from microorganisms, suggesting its potential use for functional purpose.
Collapse
Affiliation(s)
- Soo Takasu
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Isabella Supardi Parida
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Shinji Onose
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Junya Ito
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Ryoichi Ikeda
- Food Research Laboratory, Asahimatsu Foods Co., Ltd., Iida, Nagano, Japan
| | - Kenji Yamagishi
- Food Research Institute (NFRI), National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Oki Higuchi
- Biodynamic Plant Institute Co., Ltd., Sapporo, Hokkaido, Japan
| | - Fukuyo Tanaka
- Central Region Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Toshiyuki Kimura
- Food Research Institute (NFRI), National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan
| | - Teruo Miyazawa
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
- New Industry Creation Hatchery Center (NICHe), Tohoku University, Sendai, Japan
| | - Kiyotaka Nakagawa
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| |
Collapse
|
22
|
Improved production of 1-deoxynojirymicin in Escherichia coli through metabolic engineering. World J Microbiol Biotechnol 2018; 34:77. [PMID: 29796897 DOI: 10.1007/s11274-018-2462-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 05/21/2018] [Indexed: 12/11/2022]
Abstract
Azasugars, such as 1-deoxynojirymicin (1-DNJ), are associated with diverse pharmaceutical applications, such as antidiabetic, anti-obesity, anti-HIV, and antitumor properties. Different azasugars have been isolated from diverse microbial and plant sources though complicated purification steps, or generated by costly chemical synthesis processes. But the biosynthesis of such potent molecules using Escherichia coli as a heterologous host provides a broader opportunity to access these molecules, particularly by utilizing synthetic biological, metabolic engineering, and process optimization approaches. This work used an integrated approach of synthetic biology, enzyme engineering, and pathway optimization for rational metabolic engineering, leading to the improved production of 1-DNJ. The production of 1-DNJ in recombinant E. coli culture broth was confirmed by enzymatic assays and mass spectrometric analysis. Specifically, the pathway engineering for its key precursor, fructose-6-phosphate, along with optimized media condition, results in the highest production levels. When combined, 1-DNJ production was extended to ~ 273 mg/L, which is the highest titer of production of 1-DNJ reported using E. coli.
Collapse
|
23
|
Yamagishi K, Onose S, Takasu S, Ito J, Ikeda R, Kimura T, Nakagawa K, Miyazawa T. Lactose Increases the Production of 1-deoxynojirimycin in Bacillus amyloliquefaciens. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2017. [DOI: 10.3136/fstr.23.349] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Kenji Yamagishi
- National Food Research Institute (NFRI), National Agricultural Research Organization (NARO)
| | - Shinji Onose
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - So Takasu
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Junya Ito
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | | | - Toshiyuki Kimura
- National Food Research Institute (NFRI), National Agricultural Research Organization (NARO)
| | - Kiyotaka Nakagawa
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Teruo Miyazawa
- Food and Biotechnology Innovation Project, New Industry Creation Hathery Center (NICHe), Tohoku University
| |
Collapse
|
24
|
Nectrisine Biosynthesis Genes in Thelonectria discophora SANK 18292: Identification and Functional Analysis. Appl Environ Microbiol 2016; 82:6414-6422. [PMID: 27565616 DOI: 10.1128/aem.01709-16] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 08/17/2016] [Indexed: 12/23/2022] Open
Abstract
The fungus Thelonectria discophora SANK 18292 produces the iminosugar nectrisine, which has a nitrogen-containing heterocyclic 5-membered ring and acts as a glycosidase inhibitor. In our previous study, an oxidase (designated NecC) that converts 4-amino-4-deoxyarabinitol to nectrisine was purified from T. discophora cultures. However, the genes required for nectrisine biosynthesis remained unclear. In this study, the nectrisine biosynthetic gene cluster in T. discophora was identified from the contiguous genome sequence around the necC gene. Gene disruption and complementation studies and heterologous expression of the gene showed that necA, necB, and necC could be involved in nectrisine biosynthesis, during which amination, dephosphorylation, and oxidation occur. It was also demonstrated that nectrisine could be produced by recombinant Escherichia coli coexpressing the necA, necB, and necC genes. These findings provide the foundation to develop a bacterial production system for nectrisine or its intermediates through genetic engineering. IMPORTANCE Iminosugars might have great therapeutic potential for treatment of many diseases. However, information on the genes for their biosynthesis is limited. In this study, we report the identification of genes required for biosynthesis of the iminosugar nectrisine in Thelonectria discophora SANK 18292, which was verified by disruption, complementation, and heterologous expression of the genes involved. We also demonstrate heterologous production of nectrisine by recombinant E. coli, toward developing an efficient production system for nectrisine or its intermediates through genetic engineering.
Collapse
|
25
|
Miyauchi R, Takatsu T, Suzuki T, Ono Y, Shiba Y. Biosynthesis of nectrisine in Thelonectria discophora SANK 18292. PHYTOCHEMISTRY 2015; 116:87-93. [PMID: 25865736 DOI: 10.1016/j.phytochem.2015.03.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Revised: 02/27/2015] [Accepted: 03/28/2015] [Indexed: 06/04/2023]
Abstract
Nectrisine, an iminosugar with a heterocyclic nitrogen-containing 5-membered ring, acts as a glycosidase inhibitor. Thelonectria discophora SANK 18292, a fungus, was identified as a nectrisine producer from its microbial library in our screening for nectrisine producing microorganisms. Biosynthesis of nectrisine produced by the fungus was studied using stable isotope tracer techniques. Incorporation of (13)C-labeled d-ribose and d-xylose into nectrisine was confirmed by mass spectrometry and (13)C NMR spectroscopy, which suggested that these were its precursors. Chromatographic separation of the hot water extract from the culture broth afforded not only nectrisine, but also substantial amounts of 4-amino-4-deoxyarabinitol. Incubation of the latter with the crude enzyme of the fungus at room temp. caused an increase in levels of nectrisine together with a decrease in amounts of the administered potential precursor suggesting that it is a biosynthetic intermediate. From these results, a biosynthetic pathway to nectrisine is proposed via d-xylulose 5-phosphate and 4-amino-4-deoxyarabinitol by the pentose phosphate pathway.
Collapse
Affiliation(s)
- Ryuki Miyauchi
- New Modality Research Laboratories, R&D Division, Daiichi Sankyo Co., Ltd., 1-2-58, Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan.
| | - Toshio Takatsu
- Center for Pharmaceutical and Biomedical Analysis, Daiichi Sankyo RD Novare Co., Ltd., 1-16-13, Kitakasai, Edogawa-ku, Tokyo 134-8630, Japan
| | - Tetsuya Suzuki
- Analytical and Quality Evaluation Research Laboratories, Pharmaceutical Technology Division, Daiichi Sankyo Co., Ltd., 1-2-58, Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Yasunori Ono
- Discovery Science and Technology Department, Drug Discovery and Biomedical Technology Unit, Daiichi Sankyo RD Novare Co., Ltd., 1-16-13, Kitakasai, Edogawa-ku, Tokyo 134-8630, Japan
| | - Yoichiro Shiba
- CM&C Planning Department, Pharmaceutical Technology Division, Daiichi Sankyo Co., Ltd., 1-12-1, Shinomiya, Hiratsuka-shi, Kanagawa 254-0014, Japan
| |
Collapse
|
26
|
Jiang P, Mu S, Li H, Li Y, Feng C, Jin JM, Tang SY. Design and application of a novel high-throughput screening technique for 1-deoxynojirimycin. Sci Rep 2015; 5:8563. [PMID: 25708517 PMCID: PMC4338435 DOI: 10.1038/srep08563] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 01/27/2015] [Indexed: 11/17/2022] Open
Abstract
High-throughput screening techniques for small molecules can find intensive applications in the studies of biosynthesis of these molecules. A sensitive, rapid and cost-effective technique that allows high-throughput screening of endogenous production of the natural iminosugar 1-deoxynojirimycin (1-DNJ), an α-glucosidase inhibitor relevant to the pharmaceutical industry, was developed in this study, based on the inhibitory effects of 1-DNJ on the activity of the β-glycosidase LacS from Sulfolobus solfataricus. This technique has been demonstrated effective in engineering both the key enzyme and the expression levels of enzymes in the 1-DNJ biosynthetic pathway from Bacillus atrophaeus cloned in E. coli. Higher biosynthetic efficiency was achieved using directed evolution strategies.
Collapse
Affiliation(s)
- Peixia Jiang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shanshan Mu
- 1] CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China [2] University of Chinese Academy of Sciences, Beijing 100049, China
| | - Heng Li
- 1] CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China [2] University of Chinese Academy of Sciences, Beijing 100049, China
| | - Youhai Li
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Congmin Feng
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jian-Ming Jin
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing 100048, China
| | - Shuang-Yan Tang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| |
Collapse
|
27
|
Seo MJ, Nam YD, Lee SY, Park SL, Yi SH, Lim SI. Isolation of the putative biosynthetic gene cluster of 1-deoxynojirimycin by Bacillus amyloliquefaciens 140N, its production and application to the fermentation of soybean paste. Biosci Biotechnol Biochem 2013; 77:398-401. [PMID: 23391926 DOI: 10.1271/bbb.120753] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The 1-deoxynojirimycin (DNJ) biosynthetic gene cluster of Bacillus amyloliquefaciens 140N isolated from traditional Korean fermented food was isolated by PCR screening. It showed 78.9% inhibitory activity against α-glucosidase and produced 0.8 g/L of DNJ in an optimized medium containing 2% soluble starch, 1% tryptone, 0.05% KH(2)PO(4), and 0.05% (NH(2))(4)SO(4). Soybean paste fermented with B. amyloliquefaciens 140N produced DNJ with 84.4% inhibitory activity.
Collapse
Affiliation(s)
- Myung-Ji Seo
- Division of Bioengineering, University of Incheon, Incheon, Republic of Korea
| | | | | | | | | | | |
Collapse
|
28
|
Onose S, Ikeda R, Nakagawa K, Kimura T, Yamagishi K, Higuchi O, Miyazawa T. Production of the α-glycosidase inhibitor 1-deoxynojirimycin from Bacillus species. Food Chem 2012; 138:516-23. [PMID: 23265519 DOI: 10.1016/j.foodchem.2012.11.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 10/18/2012] [Accepted: 11/07/2012] [Indexed: 10/27/2022]
Abstract
1-Deoxynojirimycin (DNJ), a potent α-glycosidase inhibitor, has therapeutic applications in treatments of HIV, Gaucher's disease, and diabetes. DNJ has been extracted from natural sources (mulberry leaves) for therapeutic purposes; however, DNJ ingredients are in limited supply and are costly to obtain on a large scale. Since certain strains of Bacillus and Streptomyces species reportedly produce DNJ, they may serve as potential sources for high-yield DNJ production. In this study, we obtained evidence for a DNJ production in Bacillus subtilis DSM704 by hydrophilic interaction chromatography-tandem mass spectrometry. In addition, from a screen of 750 microorganisms, we identified additional Bacillus strains (Bacillus amyloliquefaciens AS385 and Bacillus subtilis B4) that produce DNJ in large quantities. Investigation of the effect of various culture conditions, using Bacillus subtilis DSM704 and the DNJ high-production Bacillus strains, provided evidence for the importance of sorbitol supplementation on the yield of the DNJ precursor, 2-amino-2-deoxy-D-mannitol, thereby increasing DNJ production. The role of sorbitol in increased DNJ production was supported by an observed increase in mRNA expression of the biosynthetic gene, gabT1. When Bacillus amyloliquefaciens AS385 was cultured in medium supplemented with sorbitol, extracellular DNJ concentration reached a maximum of 460 mg/l of medium (equivalent to 9.20mg/g of freeze-dried medium), indicating that this strain can serve as a source for food- and drug-grade products. These findings not only lead to a further understanding of the DNJ biosynthetic pathway, but also suggest a method for microbial mass production of DNJ for therapeutic applications.
Collapse
Affiliation(s)
- Shinji Onose
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
| | | | | | | | | | | | | |
Collapse
|