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Tarek H, Nam KB, Kim YK, Suchi SA, Yoo JC. Biochemical Characterization and Application of a Detergent Stable, Antimicrobial and Antibiofilm Potential Protease from Bacillus siamensis. Int J Mol Sci 2023; 24:ijms24065774. [PMID: 36982846 PMCID: PMC10056560 DOI: 10.3390/ijms24065774] [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: 02/14/2023] [Revised: 03/09/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Proteases are important enzymes that are engaged in a variety of essential physiological functions and have a significant possible use in industrial applications. In this work, we reported the purification and biochemical characterization of a detergent stable, antimicrobial, and antibiofilm potential protease (SH21) produced by Bacillus siamensis CSB55 isolated from Korean fermented vegetable kimchi. SH21 was purified to obtain homogeneity via ammonium sulfate precipitation (40-80%), Sepharose CL-6B, and Sephadex G-75 column. By analyzing the SDS-PAGE and zymogram, it was determined that the molecular weight was around 25 kDa. The enzyme activity was almost completely inhibited in the presence of PMSF and DFP, which indicated that it was a member of the serine protease family. SH21 showed excellent activity with a broad range of pH and temperature, with its maximum pH of 9.0 and temperature of 55 °C. The enzyme had estimated Km and Vmax values of 0.197 mg/mL and 1.22 × 103 U/mg, respectively. In addition, it preserved good activity in the presence of different organic solvents, surfactants, and other reagents. This enzyme showed good antimicrobial activity that was evaluated by MIC against several pathogenic bacteria. Furthermore, it exhibited strong antibiofilm activity as determined by MBIC and MBEC assay and degraded the biofilms, which were analyzed by confocal microscopic study. These properties established that SH21 is a potent alkaline protease that can be used in industrial and therapeutic applications.
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Affiliation(s)
- Hasan Tarek
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Kyung Bin Nam
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Young Kyun Kim
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Suzia Aktar Suchi
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Jin Cheol Yoo
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
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Asitok A, Ekpenyong M, Takon I, Antai S, Ogarekpe N, Antigha R, Edet P, Ben U, Akpan A, Antai A, Essien J. Overproduction of a thermo-stable halo-alkaline protease on agro-waste-based optimized medium through alternate combinatorial random mutagenesis of Stenotrophomonas acidaminiphila. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2022; 35:e00746. [PMID: 35707314 PMCID: PMC9189783 DOI: 10.1016/j.btre.2022.e00746] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/16/2022] [Accepted: 06/04/2022] [Indexed: 11/22/2022]
Abstract
Alternate combinatorial random mutagenesis selected a protease high-yielding mutant. Medium optimization led to 25.55-fold raise in specific protease yield in bioreactor. 20% PEG-1500/Na+ 15% citrate recovered 74% activity yield with 52.55 purity. Activity was retained at elevated physicochemical levels but inhibited by PMSF. Keratinolytic and blood-stain removal activities confer industrial potential on protease.
A strain of Stenotrophomonas acidaminiphila, isolated from fermenting bean-processing wastewater, produced alkaline protease in pretreated cassava waste-stream, but with low yield. Strain improvement by alternate combinatorial random mutagenesis and bioprocess optimization using comparative statistical and neural network methods enhanced yield by 17.8-fold in mutant kGy-04-UV-25. Kinetics of production by selected mutant modeled by logistic and modified Gompertz functions revealed higher specific growth rate in mutant than in the parent strain, likewise volumetric and specific productivities. Purification by PEG/Na+ citrate aqueous two-phase system recovered 73.87% yield and 52.55-fold of protease. Its activity was stable at 5–35% NaCl, 45–75°C, and was significantly enhanced by 1–15 mM sodium dodecyl sulfate (SDS). The protease was inhibited by low concentrations of phenyl-methyl-sulfonyl fluoride but was activated by 1–5 mM Mn2+ suggesting a manganese-dependent serine‑protease. The 45.7 kDa thermo-halo-stable alkaline protease demonstrated keratinolytic and blood-stain removal potentials showing prospects in textile and detergent industries, respectively.
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Affiliation(s)
- Atim Asitok
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Nigeria
- University of Calabar Collection of Microorganisms (UCCM), Department of Microbiology, University of Calabar, Nigeria
| | - Maurice Ekpenyong
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Nigeria
- University of Calabar Collection of Microorganisms (UCCM), Department of Microbiology, University of Calabar, Nigeria
- Corresponding author.
| | - Iquo Takon
- Industrial Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Nigeria
| | - Sylvester Antai
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Nigeria
- University of Calabar Collection of Microorganisms (UCCM), Department of Microbiology, University of Calabar, Nigeria
| | - Nkpa Ogarekpe
- Environmental Engineering Unit, Department of Civil Engineering, Faculty of Engineering, Cross River University of Technology, Nigeria
| | - Richard Antigha
- Environmental Engineering Unit, Department of Civil Engineering, Faculty of Engineering, Cross River University of Technology, Nigeria
| | - Philomena Edet
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Nigeria
| | - Ubong Ben
- Department of Physics, Faculty of Physical Sciences, University of Calabar, Nigeria
| | - Anthony Akpan
- Department of Physics, Faculty of Physical Sciences, University of Calabar, Nigeria
| | - Agnes Antai
- Department of Economics, Faculty of Social Sciences, University of Calabar, Nigeria
| | - Joseph Essien
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Sciences, University of Uyo, Nigeria
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Thaz CJ, Jayaraman G. Calcium ion induced thermodynamic stability, bisubstrate specificity, and differential organic solvent tolerance of a predominantly β-sheet serine protease from Bacillus aquimaris VITP4. Biotechnol Appl Biochem 2019; 66:955-961. [PMID: 31486109 DOI: 10.1002/bab.1811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/01/2019] [Indexed: 01/22/2023]
Abstract
The present study was aimed to get insights on the role of calcium ions on the thermodynamic stability, substrate specificity, and organic solvent compatibility of the extracellular protease produced by Bacillus aquimaris VITP4. Presence of Ca2+ enhanced the activity of the enzyme in the temperature range of 30-60 °C and increased the half-life from 164 to 234 Min. Circular dichroism experiments indicated that the temperature of half-denaturation (Tm ) of the protease increased from 76 to 86 °C. As judged by fluorescence emission profiles, the overall fold of the enzyme around the tryptophan residues could be similar. Further, thermal inactivation experiments revealed that the enzyme followed first order kinetics, with increase in energy for inactivation (Eai ) by 24.2 ± 1.2 kJ mol -1 in the presence of Ca2+ . Studies with synthetic peptides as well as with bovine serum albumin signified preferential hydrolysis of the peptide bonds at the C-terminus of alanine residues (with a kcat /KM of 141,400 M-1 Sec-1 ) and at the C-terminus of arginine residues with a lower specificity (72,400 M-1 Sec-1 ), indicating bisubstrate specificity of the enzyme. The enzyme was found to be compatible with organic solvents (50%, v/v) such as acetonitrile and butanol, indicating possible application under demanding nonaqueous conditions.
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Affiliation(s)
- Chittoor Jabeena Thaz
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Gurunathan Jayaraman
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, India
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Hammami A, Fakhfakh N, Abdelhedi O, Nasri M, Bayoudh A. Proteolytic and amylolytic enzymes from a newly isolated Bacillus mojavensis SA: Characterization and applications as laundry detergent additive and in leather processing. Int J Biol Macromol 2017; 108:56-68. [PMID: 29180048 DOI: 10.1016/j.ijbiomac.2017.11.148] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/06/2017] [Accepted: 11/23/2017] [Indexed: 10/18/2022]
Abstract
The present work aims to study the simultaneous production of highly alkaline proteases and thermostable α-amylases by a newly isolated bacterium Bacillus mojavensis SA. The optimum pH and temperature of amylase activity were 9.0 and 55°C, respectively, while those of the proteolytic activity were 12.0 and 60°C, respectively. Both α-amylase and protease enzymes showed a high stability towards a wide range of pH and temperature. Furthermore, SA crude enzymes were relatively stable towards non-ionic (Tween 20, Tween 80 and Triton X-100) and anionic (SDS) surfactants, as well as oxidizing agents. Both activities were improved by the presence of polyethylene glycol 4000 and glycerol. Additionally, the crude enzymes showed excellent stability against various solid and liquid detergents. Wash performance analysis revealed that the SA crude enzymes exhibited a remarkable efficiency in the removal of a variety type of stains, such as blood, chocolate, coffee and oil. On the other side, SA proteases revealed a potential dehairing activity of animal hide without chemical assistance or fibrous proteins hydrolysis. Thus, considering their promising properties, B. mojavensis SA crude enzymes could be used in several biotechnological bioprocesses.
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Affiliation(s)
- Amal Hammami
- Laboratory of Enzyme Engineering and Microbiology, Engineering National School of Sfax (ENIS), University of Sfax, Sfax, Tunisia
| | - Nahed Fakhfakh
- Laboratory of Enzyme Engineering and Microbiology, Engineering National School of Sfax (ENIS), University of Sfax, Sfax, Tunisia.
| | - Ola Abdelhedi
- Laboratory of Enzyme Engineering and Microbiology, Engineering National School of Sfax (ENIS), University of Sfax, Sfax, Tunisia
| | - Moncef Nasri
- Laboratory of Enzyme Engineering and Microbiology, Engineering National School of Sfax (ENIS), University of Sfax, Sfax, Tunisia
| | - Ahmed Bayoudh
- Laboratory of Enzyme Engineering and Microbiology, Engineering National School of Sfax (ENIS), University of Sfax, Sfax, Tunisia
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Chittoor JT, Balaji L, Jayaraman G. Optimization of Parameters that Affect the Activity of the Alkaline Protease from Halotolerant Bacterium, Bacillus acquimaris VITP4, by the Application of Response Surface Methodology and Evaluation of the Storage Stability of the Enzyme. IRANIAN JOURNAL OF BIOTECHNOLOGY 2016; 14:23-32. [PMID: 28959314 DOI: 10.15171/ijb.1269] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND It was previously shown that the activity of a serine protease from a moderately halotolerant Bacillus aquimaris VITP4 strain is active in a wide range of pH and temperatures and could be modulated by the presence of the divalent metal ions. OBJECTIVES In the present study, a quantitative analysis was done in order to explore the parameters that are contributing to the protease activity. MATERIALS AND METHODS Changes in the secondary structure of the enzyme was determined by circular dichroism analysis. The conditions for the optimal activity was investigated by Response Surface Methodology. Stability of the enzyme was determined by thermal inactivation experiments. RESULTS The initial one-factor-at-a-time experiments have indicated that the activity of the enzyme could be enhanced not only by the presence of low concentrations of NaCl but also by divalent metal ions, such as Ca2+, Mn2+ and Cu2+. A clear dependence of the activity to the secondary structure of the enzyme could be established using circular dichroism spectroscopy. In the next level of optimization, four factors; viz. pH, temperature, concentration of Ca2+, and Mn2+ were used to optimize the conditions required for the maximal activity of the enzyme by Response Surface Methodology, and the data could be explained using quadratic model. Under optimal condition of 43°C, pH 8.0, 8.2 mM Ca2+, and 4.3 mM Mn2+ a 1.5 times enhancement in the enzyme activity could be achieved. The storage stability of the enzyme under these selected conditions has indicated a non-linear relation between the conditions for the enzymatic activity as well as stability. However, the condition for the maximal stability (267±18 min) has corresponded to that of the optimal conditions for the maximal activity. CONCLUSIONS This study, for the first time, has explored the possibility of using statistical methods for identifying the optimal conditions for alkaline protease activity isolated from the halotolerant Bacillus aquimaris VITP4.
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Affiliation(s)
- Jabeena Thaz Chittoor
- Department School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore 632 014, India
| | - Lavanya Balaji
- Department School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore 632 014, India
| | - Gurunathan Jayaraman
- Department School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore 632 014, India
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Thaz CJ, Jayaraman G. Stability and Detergent Compatibility of a Predominantly β-Sheet Serine Protease from Halotolerant B. aquimaris VITP4 Strain. Appl Biochem Biotechnol 2013; 172:687-700. [DOI: 10.1007/s12010-013-0524-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 09/15/2013] [Indexed: 11/30/2022]
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Öztürk NÇ, Kazan D, Denizci AA, Erarslan A. The influence of copper on alkaline protease stability toward autolysis and thermal inactivation. Eng Life Sci 2012. [DOI: 10.1002/elsc.201200017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Nurçin Çelik Öztürk
- The Scientific and Technological Research Council of Turkey (TUBİTAK), Genetic Engineering and Biotechnology Institute (GEBI); Marmara Research Center Campus (MRC); Gebze - Kocaeli; Turkey
| | - Dilek Kazan
- Department of Bioengineering, Faculty of Engineering; Marmara University; Kadıköy-İstanbul; Turkey
| | - Aziz Akın Denizci
- The Scientific and Technological Research Council of Turkey (TUBİTAK), Genetic Engineering and Biotechnology Institute (GEBI); Marmara Research Center Campus (MRC); Gebze - Kocaeli; Turkey
| | - Altan Erarslan
- Department of Chemistry, Section of Biochemistry; Faculty of Arts and Sciences; Kocaeli University; İzmit-Kocaeli; Turkey
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Jain D, Pancha I, Mishra SK, Shrivastav A, Mishra S. Purification and characterization of haloalkaline thermoactive, solvent stable and SDS-induced protease from Bacillus sp.: a potential additive for laundry detergents. BIORESOURCE TECHNOLOGY 2012; 115:228-236. [PMID: 22100240 DOI: 10.1016/j.biortech.2011.10.081] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 10/20/2011] [Accepted: 10/22/2011] [Indexed: 05/31/2023]
Abstract
An extracellular haloalkaline, thermoactive, solvent stable, SDS-induced serine protease was purified and characterized from an alkali-thermo tolerant strain Bacillus sp. SM2014 isolated from reverse osmosis reject. The enzyme was purified to homogeneity with recovery of 54.4% and purity fold of 64. The purified enzyme was composed of single polypeptide of molecular mass about 71 kDa. The enzyme showed optimum activity at alkaline pH 10 and temperature 60°C. The km and Vmax for the enzyme was 0.57 mg/ml and 445.23 U/ml respectively. The enzyme showed novel catalytic ability at high pH (10), temperature (60°C) and salinity (3M). Moreover, the stability of enzyme in organic solvents (50% v/v) of logP ≥ 2 signified the prospective of this enzyme for peptide synthesis. The compatibility of the enzyme with surfactants and various detergent matrices together with wash performance test confirmed its potential applicability in laundry industry.
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Affiliation(s)
- Deepti Jain
- Discipline of Salt Marine and Inorganic Chemicals, Central Salt and Marine Chemicals Research Institute, Council for Scientific and Industrial Research (CSIR), GB Marg, Bhavnagar, India
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Dasu VV, Sen S, Dutta K, Mandal B. Characterization of a Novel Surfactant and Organic Solvent Stable High-alkaline Protease from New Bacillus pseudofirmus SVB1. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/jm.2011.769.783] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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