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Wang XH, Zhang YQ, Zhang XR, Zhang XD, Sun XM, Wang XF, Sun XH, Song XY, Zhang YZ, Wang N, Chen XL, Xu F. High-Level Extracellular Production of a Trisaccharide-Producing Alginate Lyase AlyC7 in Escherichia coli and Its Agricultural Application. Mar Drugs 2024; 22:230. [PMID: 38786621 PMCID: PMC11123115 DOI: 10.3390/md22050230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/11/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
Alginate oligosaccharides (AOS), products of alginate degradation by endotype alginate lyases, possess favorable biological activities and have broad applications. Although many have been reported, alginate lyases with homogeneous AOS products and secretory production by an engineered host are scarce. Herein, the alginate lyase AlyC7 from Vibrio sp. C42 was characterized as a trisaccharide-producing lyase exhibiting high activity and broad substrate specificity. With PelB as the signal peptide and 500 mM glycine as the additive, the extracellular production of AlyC7 in Escherichia coli reached 1122.8 U/mL after 27 h cultivation in Luria-Bertani medium. The yield of trisaccharides from sodium alginate degradation by the produced AlyC7 reached 758.6 mg/g, with a purity of 85.1%. The prepared AOS at 20 μg/mL increased the root length of lettuce, tomato, wheat, and maize by 27.5%, 25.7%, 9.7%, and 11.1%, respectively. This study establishes a robust foundation for the industrial and agricultural applications of AlyC7.
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Affiliation(s)
- Xiao-Han Wang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China;
- Joint Research Center for Marine Microbial Science and Technology, Shandong University and Ocean University of China, Qingdao 266237, China
- Shandong Key Laboratory of Marine Ecological Restoration, Shandong Marine Resource and Environment Research Institute, Yantai 264006, China
| | - Yu-Qiang Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
| | - Xin-Ru Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
| | - Xiao-Dong Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
| | - Xiao-Meng Sun
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China;
| | - Xiao-Fei Wang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
| | - Xiao-Hui Sun
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
| | - Xiao-Yan Song
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
- Joint Research Center for Marine Microbial Science and Technology, Shandong University and Ocean University of China, Qingdao 266237, China
| | - Yu-Zhong Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China;
- Joint Research Center for Marine Microbial Science and Technology, Shandong University and Ocean University of China, Qingdao 266237, China
| | - Ning Wang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
- Joint Research Center for Marine Microbial Science and Technology, Shandong University and Ocean University of China, Qingdao 266237, China
| | - Xiu-Lan Chen
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
- Joint Research Center for Marine Microbial Science and Technology, Shandong University and Ocean University of China, Qingdao 266237, China
| | - Fei Xu
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, China; (X.-H.W.); (Y.-Q.Z.); (X.-R.Z.); (X.-D.Z.); (X.-F.W.); (X.-H.S.); (X.-Y.S.); (Y.-Z.Z.)
- Joint Research Center for Marine Microbial Science and Technology, Shandong University and Ocean University of China, Qingdao 266237, China
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Liang Q, Huang Y, Liu Z, Xiao M, Ren X, Liu T, Li H, Yu D, Wang Y, Zhu C. A Recombinant Alginate Lyase Algt1 with Potential in Preparing Alginate Oligosaccharides at High-Concentration Substrate. Foods 2023; 12:4039. [PMID: 37959158 PMCID: PMC10649253 DOI: 10.3390/foods12214039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 09/30/2023] [Accepted: 10/18/2023] [Indexed: 11/15/2023] Open
Abstract
Alginate lyase has been demonstrated as an efficient tool in the preparation of functional oligosaccharides (AOS) from alginate. The high viscosity resulting from the high concentration of alginate poses a limiting factor affecting enzymatic hydrolysis, particularly in the preparation of the fragments with low degrees of polymerization (DP). Herein, a PL7 family alginate lyase Algt from Microbulbifer thermotolerans DSM 19189 was developed and expressed in Pichia pastoris. The recombinant alginate lyase Algt1 was constructed by adopting the structural domain truncation strategy, and the enzymatic activity towards the alginate was improved from 53.9 U/mg to 212.86 U/mg compared to Algt. Algt1 was stable when incubated at 40 °C for 90 min, remaining with approximately 80.9% of initial activity. The analyses of thin-layer chromatography (TLC), fast protein liquid chromatography (FPLC), and electrospray ionization mass spectrometry (ESI-MS) demonstrated that the DP of the minimum identifiable substrate of Algt1 was five, and the main hydrolysis products were AOS with DP 1-4. Additionally, 1-L the enzymatic hydrolysis system demonstrated that Algt1 exhibited an effective degradation at alginate concentrations of up to 20%, with the resulting products of monosaccharides (14.02%), disaccharides (21.10%), trisaccharides (37.08%), and tetrasaccharides (27.80%). These superior properties of Algt1 make it possible to efficiently generate functional AOS with low DP in industrial processing.
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Affiliation(s)
- Qingping Liang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
| | - Youtao Huang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
| | - Zhemin Liu
- Fundamental Science R&D Center of Vazyme Biotech Co., Ltd., Nanjing 210000, China;
| | - Mengshi Xiao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
| | - Xinmiao Ren
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
| | - Tianhong Liu
- Marine Science Research Institute of Shandong Province, Qingdao 266003, China; (T.L.); (H.L.)
- Municipal Engineering Research Center of Aquatic Biological Quality Evaluation and Application, Qingdao 266104, China
| | - Hongyan Li
- Marine Science Research Institute of Shandong Province, Qingdao 266003, China; (T.L.); (H.L.)
- Municipal Engineering Research Center of Aquatic Biological Quality Evaluation and Application, Qingdao 266104, China
| | - Dongxing Yu
- SOHAO FD-TECH Co., Ltd., Qingdao 266700, China;
| | - Ying Wang
- Marine Science Research Institute of Shandong Province, Qingdao 266003, China; (T.L.); (H.L.)
- Municipal Engineering Research Center of Aquatic Biological Quality Evaluation and Application, Qingdao 266104, China
| | - Changliang Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
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Shu Z, Wang G, Liu F, Xu Y, Sun J, Hu Y, Dong H, Zhang J. Genome Sequencing-Based Mining and Characterization of a Novel Alginate Lyase from Vibrio alginolyticus S10 for Specific Production of Disaccharides. Mar Drugs 2023; 21:564. [PMID: 37999388 PMCID: PMC10672080 DOI: 10.3390/md21110564] [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: 07/31/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 11/25/2023] Open
Abstract
Alginate oligosaccharides prepared by alginate lyases attracted great attention because of their desirable biological activities. However, the hydrolysis products are always a mixture of oligosaccharides with different degrees of polymerization, which increases the production cost because of the following purification procedures. In this study, an alginate lyase, Alg4755, with high product specificity was identified, heterologously expressed, and characterized from Vibrio alginolyticus S10, which was isolated from the intestine of sea cucumber. Alg4755 belonged to the PL7 family with two catalytic domains, which was composed of 583 amino acids. Enzymatic characterization results show that the optimal reaction temperature and pH of Alg4755 were 35 °C and 8.0, respectively. Furthermore, Alg4755 was identified to have high thermal and pH stability. Moreover, the final hydrolysis products of sodium alginate catalyzed by Alg4755 were mainly alginate disaccharides with a small amount of alginate trisaccharides. The results demonstrate that alginate lyase Alg4755 could have a broad application prospect because of its high product specificity and desirable catalytic properties.
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Affiliation(s)
- Zhiqiang Shu
- Department of Food Science and Technology, Shanghai Ocean University, Shanghai 200120, China;
- Shandong Marine Resource and Environment Research Institute, Yantai 264006, China; (G.W.)
| | - Gongming Wang
- Shandong Marine Resource and Environment Research Institute, Yantai 264006, China; (G.W.)
- Yantai Key Laboratory of Quality and Safety Control and Deep Processing of Marine Food, Yantai 264006, China
| | - Fang Liu
- Shandong Marine Resource and Environment Research Institute, Yantai 264006, China; (G.W.)
- Yantai Key Laboratory of Quality and Safety Control and Deep Processing of Marine Food, Yantai 264006, China
| | - Yingjiang Xu
- Shandong Marine Resource and Environment Research Institute, Yantai 264006, China; (G.W.)
- Yantai Key Laboratory of Quality and Safety Control and Deep Processing of Marine Food, Yantai 264006, China
| | - Jianan Sun
- Qingdao Key Laboratory of Food Biotechnology, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (J.S.)
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, China
| | - Yang Hu
- Qingdao Key Laboratory of Food Biotechnology, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (J.S.)
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, China
| | - Hao Dong
- Qingdao Key Laboratory of Food Biotechnology, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (J.S.)
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, China
| | - Jian Zhang
- Shandong Marine Resource and Environment Research Institute, Yantai 264006, China; (G.W.)
- Yantai Key Laboratory of Quality and Safety Control and Deep Processing of Marine Food, Yantai 264006, China
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Cloning, Expression and Characterization of an Alginate Lyase in Bacillus subtilis WB600. FERMENTATION 2023. [DOI: 10.3390/fermentation9020144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was to further broaden the heterologous expression of alginate lyase from Vibrio alginolyticus in a Bacillus subtilis expression vector. A B. subtilis WB600/pP43NMK-alg62 strain was constructed. (NH4)2SO4 precipitation and Ni-affinity chromatography were performed to purify the enzyme. We then characterized the enzyme. Its molecular weight was 57.64 kDa, and it worked optimally at 30 °C with a pH of 8.0. Ca2+ markedly enhanced the enzymatic activity of Alg62 while Cu2+ and Ni2+ inhibited its activity. Alg62 had a wide range of substrate specificity, showing high activity toward sodium alginate and polyG. Following optimization of the fermentation process, the optimal conditions for the recombinant expression of Alg62 were as follows: temperature of 37 °C, pH of 7.0, medium consisting of glycerol 15 g/L, yeast powder 25 g/L and K+ 1.5 mmol/L. At these optimal conditions, enzyme activity reached 318.21 U/mL, which was 1.54 times higher than the initial enzyme activity.
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