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Sawetaji, Aggarwal KK. A Protease from Moringa oleifera Lam. Exhibits In-vitro Blood Clot Solubilization and Fibrin Hydrolysis. Protein J 2024; 43:923-934. [PMID: 39068632 DOI: 10.1007/s10930-024-10222-z] [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] [Accepted: 06/28/2024] [Indexed: 07/30/2024]
Abstract
Thrombosis is the formation of abnormal blood clots in the blood vessels that obstruct blood flow and lead to thrombosis. Current treatments for thrombosis are associated with serious side effects. Therefore there is a need for alternative natural therapy. A fibrinolytic protease was isolated from fresh leaves of Moringa oleifera Lam. and characterized for its potential to solubilize blood clots and hydrolyse fibrin under in-vitro conditions. The isolated protease showed a single protein band on native-PAGE. It showed optimum fibrinolytic activity at pH 8.0, 37 oC with 50 µg protein. The fibrinolytic activity of isolated protease was also confirmed by fibrin zymography. Km and Vmax of isolated protease were determined by the Lineweaver Burk plot. The isolated protease could solubilize 96.41% of blood clots by 96 h under in-vitro conditions. In-vitro fibrin hydrolysis and blood clot solubilization activities shown by an isolated protease from leaves of Moringa oleifera Lam. suggest its fibrinolytic potential to dissolve blood clots. Being a natural molecule and from a dietary plant it can be explored as an alternative natural therapy against thrombosis.
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Affiliation(s)
- Sawetaji
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sector 16-C Dwarka, New Delhi, 110078, India
| | - Kamal Krishan Aggarwal
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sector 16-C Dwarka, New Delhi, 110078, India.
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Hamed MB, Busche T, Simoens K, Carpentier S, Kormanec J, Van Mellaert L, Anné J, Kalinowski J, Bernaerts K, Karamanou S, Economou A. Enhanced protein secretion in reduced genome strains of Streptomyces lividans. Microb Cell Fact 2024; 23:13. [PMID: 38183102 PMCID: PMC10768272 DOI: 10.1186/s12934-023-02269-x] [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: 07/26/2023] [Accepted: 12/10/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND S. lividans TK24 is a popular host for the production of small molecules and the secretion of heterologous protein. Within its large genome, twenty-nine non-essential clusters direct the biosynthesis of secondary metabolites. We had previously constructed ten chassis strains, carrying deletions in various combinations of specialized metabolites biosynthetic clusters, such as those of the blue actinorhodin (act), the calcium-dependent antibiotic (cda), the undecylprodigiosin (red), the coelimycin A (cpk) and the melanin (mel) clusters, as well as the genes hrdD, encoding a non-essential sigma factor, and matAB, a locus affecting mycelial aggregation. Genome reduction was aimed at reducing carbon flow toward specialized metabolite biosynthesis to optimize the production of secreted heterologous protein. RESULTS Two of these S. lividans TK24 derived chassis strains showed ~ 15% reduction in biomass yield, 2-fold increase of their total native secretome mass yield and enhanced abundance of several secreted proteins compared to the parental strain. RNAseq and proteomic analysis of the secretome suggested that genome reduction led to cell wall and oxidative stresses and was accompanied by the up-regulation of secretory chaperones and of secDF, a Sec-pathway component. Interestingly, the amount of the secreted heterologous proteins mRFP and mTNFα, by one of these strains, was 12 and 70% higher, respectively, than that secreted by the parental strain. CONCLUSION The current study described a strategy to construct chassis strains with enhanced secretory abilities and proposed a model linking the deletion of specialized metabolite biosynthetic clusters to improved production of secreted heterologous proteins.
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Affiliation(s)
- Mohamed Belal Hamed
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
- Molecular Biology Depart, National Research Centre, Dokii, Cairo, Egypt
- Department of Neurosciences, Leuven Research Institute for Neuroscience and Disease (LIND), KU Leuven, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium
| | - Tobias Busche
- Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany
| | - Kenneth Simoens
- Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS), KU Leuven, Leuven, B-3001, Belgium
| | - Sebastien Carpentier
- SYBIOMA, KU Leuven facility for Systems Biology Based Mass Spectrometry, Leuven, B-3000, Belgium
| | - Jan Kormanec
- Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, Bratislava, 84551, Slovakia
| | - Lieve Van Mellaert
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
| | - Jozef Anné
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
| | - Joern Kalinowski
- Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany
| | - Kristel Bernaerts
- Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS), KU Leuven, Leuven, B-3001, Belgium
| | - Spyridoula Karamanou
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium.
| | - Anastassios Economou
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
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3
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Song P, Zhang X, Wang S, Xu W, Wang F, Fu R, Wei F. Microbial proteases and their applications. Front Microbiol 2023; 14:1236368. [PMID: 37779686 PMCID: PMC10537240 DOI: 10.3389/fmicb.2023.1236368] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/30/2023] [Indexed: 10/03/2023] Open
Abstract
Proteases (proteinases or peptidases) are a class of hydrolases that cleave peptide chains in proteins. Endopeptidases are a type of protease that hydrolyze the internal peptide bonds of proteins, forming shorter peptides; exopeptidases hydrolyze the terminal peptide bonds from the C-terminal or N-terminal, forming free amino acids. Microbial proteases are a popular instrument in many industrial applications. In this review, the classification, detection, identification, and sources of microbial proteases are systematically introduced, as well as their applications in food, detergents, waste treatment, and biotechnology processes in the industry fields. In addition, recent studies on techniques used to express heterologous microbial proteases are summarized to describe the process of studying proteases. Finally, future developmental trends for microbial proteases are discussed.
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Affiliation(s)
- Peng Song
- College of Life Sciences, Liaocheng University, Liaocheng, China
- Shandong Aobo Biotech Co. Ltd., Liaocheng, China
- Jiangxi Zymerck Biotech Co. Ltd., Nanchang, China
| | - Xue Zhang
- College of Life Sciences, Liaocheng University, Liaocheng, China
| | - Shuhua Wang
- Shandong Aobo Biotech Co. Ltd., Liaocheng, China
| | - Wei Xu
- College of Life Sciences, Liaocheng University, Liaocheng, China
| | - Fei Wang
- College of Life Sciences, Liaocheng University, Liaocheng, China
| | - Rongzhao Fu
- Jiangxi Zymerck Biotech Co. Ltd., Nanchang, China
| | - Feng Wei
- College of Life Sciences, Liaocheng University, Liaocheng, China
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Sheng Y, Yang J, Wang C, Sun X, Yan L. Microbial nattokinase: from synthesis to potential application. Food Funct 2023; 14:2568-2585. [PMID: 36857725 DOI: 10.1039/d2fo03389e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Nattokinase (NK) is an alkaline serine protease with strong thrombolytic activity produced by Bacillus spp. or Pseudomonas spp. It is a potential therapeutic agent for thrombotic diseases because of its safety, economy, and lack of side effects. Herein, a comprehensive summary and analysis of the reports surrounding NK were presented, and the physical-chemical properties and producers of NK were first described. The process and mechanism of NK synthesis were summarized, but these are vague and not specific enough. Further results may be achieved if detection techniques such as multi-omics are used to explore the process of NK synthesis. The purification of NK has problems such as a complicated operation and low recovery rate, which were found when summarizing the techniques to improve the quality of finished products. If multiple simple and efficient precipitation methods and purification materials are combined to purify NK, it may be possible to solve the current challenges. Additionally, the application potential of NK in biomedicine was reviewed, but functional foods with NK are challenging for acceptance in daily life due to their unpleasant odor. Accordingly, multi-strain combination fermentation or food flavoring agents can improve the odor of fermented foods and increase people's acceptance of them. Finally, the possible future directions focused on NK studies were proposed and provided suggestions for subsequent researchers.
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Affiliation(s)
- Yanan Sheng
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China.
| | - Jiani Yang
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Changyuan Wang
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China.
| | - Xindi Sun
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Lei Yan
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China.
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
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Yang HR, Hwang DH, Prakash RLM, Kim JH, Hong IH, Kim S, Kim E, Kang C. Exploring the Fibrin(ogen)olytic, Anticoagulant, and Antithrombotic Activities of Natural Cysteine Protease (Ficin) with the κ-Carrageenan-Induced Rat Tail Thrombosis Model. Nutrients 2022; 14:nu14173552. [PMID: 36079810 PMCID: PMC9460133 DOI: 10.3390/nu14173552] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/19/2022] [Accepted: 08/25/2022] [Indexed: 11/25/2022] Open
Abstract
Although fibrinolytic enzymes and thrombolytic agents help in cardiovascular disease treatment, those currently available have several side effects. This warrants the search for safer alternatives. Several natural cysteine protease preparations are used in traditional medicine to improve platelet aggregation and thrombosis-related diseases. Hence, this study aimed to investigate the effect of ficin, a natural cysteine protease, on fibrin(ogen) and blood coagulation. The optimal pH (pH 7) and temperature (37 °C) for proteolytic activity were determined using the azocasein method. Fibrinogen action and fibrinolytic activity were measured both electrophoretically and by the fibrin plate assay. The effect of ficin on blood coagulation was studied by conventional coagulation tests: prothrombin time (PT), activated partial thromboplastin time (aPTT), blood clot lysis assay, and the κ-carrageenan thrombosis model. The Aα, Bβ, and γ bands of fibrinogen are readily cleaved by ficin, and we also observed a significant increase in PT and aPTT. Further, the mean length of the infarcted regions in the tails of Sprague–Dawley rats was shorter in rats administered 10 U/mL of ficin than in control rats. These findings suggest that natural cysteine protease, ficin contains novel fibrin and fibrinogenolytic enzymes and can be used for preventing and/or treating thrombosis-associated cardiovascular disorders.
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Affiliation(s)
- Hye Ryeon Yang
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
- Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Du Hyeon Hwang
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
- Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Ramachandran Loganathan Mohan Prakash
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
- Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Jong-Hyun Kim
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
- Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Il-Hwa Hong
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
- Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Suk Kim
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
- Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Euikyung Kim
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
- Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Korea
| | - Changkeun Kang
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
- Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Korea
- Correspondence: ; Tel.: +82-55-772-2364; Fax: +82-55-772-2349
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Fig “Ficus carica L.” and its by-products: A decade evidence of their health-promoting benefits towards the development of novel food formulations. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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7
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Altaf F, Wu S, Kasim V. Role of Fibrinolytic Enzymes in Anti-Thrombosis Therapy. Front Mol Biosci 2021; 8:680397. [PMID: 34124160 PMCID: PMC8194080 DOI: 10.3389/fmolb.2021.680397] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 05/10/2021] [Indexed: 12/11/2022] Open
Abstract
Thrombosis, a major cause of deaths in this modern era responsible for 31% of all global deaths reported by WHO in 2017, is due to the aggregation of fibrin in blood vessels which leads to myocardial infarction or other cardiovascular diseases (CVDs). Classical agents such as anti-platelet, anti-coagulant drugs or other enzymes used for thrombosis treatment at present could leads to unwanted side effects including bleeding complication, hemorrhage and allergy. Furthermore, their high cost is a burden for patients, especially for those from low and middle-income countries. Hence, there is an urgent need to develop novel and low-cost drugs for thrombosis treatment. Fibrinolytic enzymes, including plasmin like proteins such as proteases, nattokinase, and lumbrokinase, as well as plasminogen activators such as urokinase plasminogen activator, and tissue-type plasminogen activator, could eliminate thrombi with high efficacy rate and do not have significant drawbacks by directly degrading the fibrin. Furthermore, they could be produced with high-yield and in a cost-effective manner from microorganisms as well as other sources. Hence, they have been considered as potential compounds for thrombosis therapy. Herein, we will discuss about natural mechanism of fibrinolysis and thrombus formation, the production of fibrinolytic enzymes from different sources and their application as drugs for thrombosis therapy.
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Affiliation(s)
- Farwa Altaf
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Shourong Wu
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, China
| | - Vivi Kasim
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, China
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8
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Nishimura K, Higashiya K, Ueshima N, Kojima K, Takita T, Abe T, Takahashi T, Yasukawa K. Insight into the collagen-degrading activity of a serine protease in the latex of Ficus carica cultivar Masui Dauphine. Biosci Biotechnol Biochem 2021; 85:1147-1156. [PMID: 33580958 DOI: 10.1093/bbb/zbab025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/05/2021] [Indexed: 02/02/2023]
Abstract
Ficus carica produces, in addition to the cysteine protease ficin, a serine protease. Earlier study on a serine protease from F. carica cultivar Brown Turkey showed that it specifically degraded collagen. In this study, we characterized the collagenolytic activity of a serine protease in the latex of F. carica cultivar Masui Dauphine. The serine protease degraded denatured, but not undenatured, acid-solubilized type I collagen. It also degraded bovine serum albumin, while the collagenase from Clostridium histolyticum did not. These results indicated that the serine protease in Masui Dauphine is not collagen-specific. The protease was purified to homogeneity by two-dimensional gel electrophoresis, and its partial amino acid sequence was determined by liquid chromatography-tandem mass spectrometry. BLAST searches against the Viridiplantae (green plants) genome database revealed that the serine protease was a subtilisin-like protease. Our results contrast with the results of the earlier study stating that the serine protease from F. carica is collagen-specific.
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Affiliation(s)
- Kosaku Nishimura
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan.,Toyo Institute of Food Technology, Kawanishi, Hyogo, Japan
| | - Keisuke Higashiya
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Naoki Ueshima
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Kenji Kojima
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Teisuke Takita
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Tatsuya Abe
- Toyo Institute of Food Technology, Kawanishi, Hyogo, Japan
| | - Toru Takahashi
- Toyo Institute of Food Technology, Kawanishi, Hyogo, Japan
| | - Kiyoshi Yasukawa
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan
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Manjuprasanna VN, Urs AP, Rudresha GV, Milan Gowda MD, Jayachandra K, Hiremath V, Rajaiah R, Vishwanath BS. Drupin, a thrombin-like protease prompts platelet activation and aggregation through protease-activated receptors. J Cell Biochem 2021; 122:870-881. [PMID: 33748988 DOI: 10.1002/jcb.29917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/24/2021] [Accepted: 03/04/2021] [Indexed: 11/10/2022]
Abstract
Hemostasis is a proteolytically regulated process that requires activation of platelets and the blood coagulation cascade upon vascular injury. Activated platelets create a thrombogenic environment and amplify the coagulation process. Plant latex proteases (PLPs) have been used as therapeutic components to treat various ailments by folk healers. One of the main applications of plant latices is to stop bleeding from minor injuries and to enhance wound healing activity. Although many studies have reported the pro-coagulant activities of PLPs, an in-depth investigation is required to understand the mechanism of action of PLPs on platelets. Here, the effect of PLPs on platelet aggregation was studied systematically to validate the observed pharmacological effect by folk healers. Among 29 latices from the Ficus genus tested, Ficus drupacea exhibited potent pro-coagulant and thrombin-like activity. Drupin, a thrombin-like cysteine protease responsible for platelet aggregation was purified from F. drupacea latex. Drupin exhibits pro-coagulant activity and reduces the bleeding time in mice tail. It induces platelet aggregation by activating mitogen-activated protein kinases and the nuclear factor-κB and PI3K/Akt signalling cascade, which, in turn, phosphorylats, cytosolic phospholipase A2 leading to the release of thromboxane A2 from the granules to activate the nearby platelets to aggregate. Furthermore, we investigated the involvement of protease-activated receptors in drupin-induced platelet aggregation using specific protease activated receptor 1 (PAR1) and PAR4 receptor antagonists. The results confirmed that the drupin-induced platelet aggregation was mediated by both PAR1 and PAR4, synergistically. Overall, drupin reduces the bleeding time by exerting pro-coagulant activity and induces platelet aggregation by activating the intracellular signalling cascade.
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Affiliation(s)
| | - Amog P Urs
- Department of Studies in Biochemistry, University of Mysore, Manasagangothri, Mysuru, Karnataka, India
| | - Gotravalli V Rudresha
- Department of Studies in Biochemistry, University of Mysore, Manasagangothri, Mysuru, Karnataka, India
| | | | - Krishnegowda Jayachandra
- Department of Studies in Biochemistry, University of Mysore, Manasagangothri, Mysuru, Karnataka, India
| | - Vilas Hiremath
- Vijayashree Diagnostics, Specialized Coagulation Lab, Bengaluru, Karnataka, India
| | - Rajesh Rajaiah
- Department of Studies in Molecular Biology, University of Mysore, Manasagangothri, Mysuru, Karnataka, India
| | - Bannikuppe S Vishwanath
- Department of Studies in Biochemistry, University of Mysore, Manasagangothri, Mysuru, Karnataka, India.,Department of Studies in Molecular Biology, University of Mysore, Manasagangothri, Mysuru, Karnataka, India
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Singh MK, Rajagopalan A, Tanimu H, Sukumaran BO. Purification, characterization and fibrino(geno)lytic activity of cysteine protease from Tabernaemontana divaricata latex. 3 Biotech 2021; 11:106. [PMID: 33569263 PMCID: PMC7847834 DOI: 10.1007/s13205-021-02643-9] [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: 09/23/2020] [Accepted: 01/03/2021] [Indexed: 11/28/2022] Open
Abstract
Protease was isolated and purified from Tabernaemontana divaricata latex and its hemostatic potential was analyzed. Crude latex enzyme was purified through ion exchange and gel filtration chromatography. Purified protease was characterized and its thrombin-like (coagulant assay, fibrinogen polymerizing, and fibrinogenolytic activity) and plasmin-like (blood and plasma clot lysis) activities were assessed accordingly. The homogeneous nature of protease was confirmed with the identification of a single band approximately at 25-kDa molecular weight position. The purified enzyme showed an enhancement of 77.32% in clot inducing ability and 89.86% improvement in blood clot lysis in comparison to that by the crude enzyme. All three subunits (Aα, Bβ and γ chains) of human fibrinogen were hydrolyzed by the purified enzyme. PAGE results of the fibrinolytic activity and blood clot lytic effect by the purified enzyme indicated the plasmin-like activity. The study lays a foundation for the development of enzyme-based approaches for pharmaceutical innovations, in which plant latex proteases can be utilized as a potential natural agent for wound healing applications.
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Affiliation(s)
- Maheshwari Kumari Singh
- Department of Biochemistry, School of Sciences-Block 1, Jain (Deemed to be University), 9th Main, 18th Cross, Jayanagar 3rd Block, Bangalore, Karnataka India
- Present Address: Karnataka State Pollution Control Board, Bangalore, Karnataka India
| | - Anusha Rajagopalan
- Department of Biochemistry, School of Sciences-Block 1, Jain (Deemed to be University), 9th Main, 18th Cross, Jayanagar 3rd Block, Bangalore, Karnataka India
| | - Habibu Tanimu
- Department of Biochemistry, School of Sciences-Block 1, Jain (Deemed to be University), 9th Main, 18th Cross, Jayanagar 3rd Block, Bangalore, Karnataka India
| | - Bindhu Omana Sukumaran
- Department of Biochemistry, School of Sciences-Block 1, Jain (Deemed to be University), 9th Main, 18th Cross, Jayanagar 3rd Block, Bangalore, Karnataka India
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