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Niu C, Liu G, Yang S, He L, Liu C, Zheng F, Wang J, Li Q. Enhanced expression of a novel trypsin from Streptomyces fradiae in Komagataella phaffii GS115 through combinational strategies of propeptide engineering and self-degredation sites modification. Int J Biol Macromol 2024; 254:127382. [PMID: 37838138 DOI: 10.1016/j.ijbiomac.2023.127382] [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: 07/19/2023] [Revised: 09/09/2023] [Accepted: 10/09/2023] [Indexed: 10/16/2023]
Abstract
This study aimed to enhance the expression level of a novel trypsin gene from Streptomyces fradiae ATCC14544 in Komagataella phaffii GS115 through the combinational use of propeptide engineering and self-degradation residues modification strategies. An artificial propeptide consisted of thioredoxin TrxA, the bovine propeptide DDDDK and the hydrophobic peptide FVEF was introduced to replace the original propeptide while the self-degradation residue sites were predicted and analyzed through alanine screening. The results showed that the quantity and enzymatic activity of asft with engineered propeptide reached 47.02 mg/mL and 33.9 U/mL, which were 9.6 % and 59.29 % higher than those of wild-type (42.9 mg/mL and 13.8 U/mL). Moreover, the introduction of R295A/R315A mutation further enhanced the enzymatic activity (58.86 U/mL) and obviously alleviated the phenomena of self-degradation. The tolerance of trypsin towards alkaline environment was also improved since the optimal pH was shifted from pH 9.0 to pH 9.5 and the half-life value at pH 10 was significantly extended. Finally, the fermentation media composition and condition were optimized and trypsin activity in optimal condition reached 160.58 U/mL, which was 2.73-fold and 11.64-fold of that before optimization or before engineering. The results obtained in this study indicated that the combinational use of propeptide engineering and self-degradation sites modification might have great potential application in production of active trypsins.
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Affiliation(s)
- Chengtuo Niu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Guozheng Liu
- School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Shijing Yang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Linman He
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Chunfeng Liu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Feiyun Zheng
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Jinjing Wang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Qi Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
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Zhu G, Ren B, Zhou Q, Xiong J, Ma X, Zhao L, Jiang F, Yang X, Wang S. Outstanding Performance of the Deep Eutectic Solvent-Based Aqueous Biphasic System Constructed with Sodium Citrate for a Green Gold Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37366178 DOI: 10.1021/acs.langmuir.3c01076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Aqueous biphasic systems (ABSs) that are based on deep eutectic solvents (DESs) are environmentally benign systems to use for metal ion separation. In this work, a series of DESs was synthesized for the first time with PEG 400 as hydrogen bond donors and tetrabutylphonium bromide (P4Br), tetrabutylammonium bromide (N4Br), or tetrabutylammonium chloride (N4Cl) as hydrogen bond acceptors, and then they were combined with citrate (Na3C6H5O7), which is eco-friendly, to construct an ABS for use in the separation of Au(I) from an aurocyanide solution. Phase diagrams of DESs + Na3C6H5O7 + H2O systems were constructed using the experimentally measured data. Multiple factors that affect the efficiency of the gold extraction were studied; these factors were the species of salt or DES and their content, the equilibrium pH, the oscillation time, and the initial gold concentration. Gold(I) is preferentially retained in the DES-rich phase, and the P4Br:PEG 1:2 + Na3C6H5O7 + H2O system has a high extraction efficiency of 100.0% under optimized conditions. FT-IR, NMR, and TEM characterizations and DFT calculations show that the migration of Au(I) from the salt-rich to the DES-rich phase follows an ion exchange mechanism. Specifically, Au(CN)2- replaces Br- in the original P4Br and generates a stable ion pair with the quaternary phosphonium salt cation, P+, and this replacement is driven by electrostatic attractions. A new strong hydrogen bond network simultaneously forms between the anionic Au(CN)2- and the -OH group in the PEG 400 component. Finally, the gold of Au(I)-loaded P4Br:PEG 1:2 can be successfully reduced by sodium borohydride with an efficiency of 100.0%. The strategy to extract gold(I) from alkaline cyanide solutions using an ABS based on DESs as proposed in this work provides a potential platform for developing green technology for recovering gold.
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Affiliation(s)
- Guiping Zhu
- Research Center of Lake Restoration Technology Engineering for Universities of Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Boxian Ren
- Research Center of Lake Restoration Technology Engineering for Universities of Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Qiaoshu Zhou
- Research Center of Lake Restoration Technology Engineering for Universities of Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Jiaxing Xiong
- Research Center of Lake Restoration Technology Engineering for Universities of Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Xiaoyu Ma
- Research Center of Lake Restoration Technology Engineering for Universities of Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Lingling Zhao
- Research Center of Lake Restoration Technology Engineering for Universities of Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Fengzhi Jiang
- Research Center of Lake Restoration Technology Engineering for Universities of Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Xiangjun Yang
- Research Center of Lake Restoration Technology Engineering for Universities of Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Shixiong Wang
- Research Center of Lake Restoration Technology Engineering for Universities of Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
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Pillaca-Pullo OS, Intiquilla A, Santos JHPM, Sánchez-Moguel I, Brandelli A, Zavaleta AI. Purification of Pseudomonas sp. proteases through aqueous biphasic systems as an alternative source to obtain bioactive protein hydrolysates. Biotechnol Prog 2020; 37:e3003. [PMID: 32281294 DOI: 10.1002/btpr.3003] [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: 06/25/2019] [Revised: 03/30/2020] [Accepted: 04/03/2020] [Indexed: 11/10/2022]
Abstract
Aqueous biphasic systems (ABSs) are an interesting alternative for separating industrial enzymes due to easy scale-up and low operational cost. The proteases of Pseudomonas sp. M211 were purified through ABS platforms formed by polyethylene glycol (PEG) and citrate buffer salt. Two experimental designs 23 + 4 were performed to evaluate the following parameters: molar mass of PEG (MPEG ), concentration of PEG (CPEG ), concentration of citrate buffer (CCit ), and pH. The partition coefficient (K), activity yield (Y), and purification factor (PF) were the responses analyzed. The best purification performance was obtained with the system composed of MPEG = 10,000 g/mol, CPEG = 22 wt%, CCit = 12 wt%, pH = 8.0; the responses obtained were K = 4.9, Y = 84.5%, PF = 15.1, and tie-line length = 52.74%. The purified proteases of Pseudomonas sp. (PPP) were used to obtain hydrolysates of Lupinus mutabilis (Peruvian lupin cultivar) seed protein in comparison with the commercial protease Alcalase® 2.4L. A strong correlation between hydrolysis degree and radical scavenging activity was observed, and the highest antioxidant activity was obtained with Alcalase® (1.40 and 3.47 μmol Trolox equivalent/mg protein, for 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) and oxygen radical absorbance capacity, respectively) compared with PPP (0.55 and 1.03 μmol Trolox/mg protein). Nevertheless, the IC50 values were lower than those often observed for antioxidant hydrolysates from plant proteins. PEG/citrate buffer system is valuable to purify Pseudomonas proteases from the fermented broth, and the purified protease could be promising to produce antioxidant protein hydrolysates.
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Affiliation(s)
- Omar S Pillaca-Pullo
- Laboratorio de Biología Molecular, Facultad de Farmacia y Bioquímica, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Arturo Intiquilla
- Laboratorio de Biología Molecular, Facultad de Farmacia y Bioquímica, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - João H P M Santos
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, Portugal.,Department of Pharmaceutical-Biochemical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ignacio Sánchez-Moguel
- Department of Pharmaceutical-Biochemical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Adriano Brandelli
- Laboratório de Bioquimica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Amparo I Zavaleta
- Laboratorio de Biología Molecular, Facultad de Farmacia y Bioquímica, Universidad Nacional Mayor de San Marcos, Lima, Peru
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Wang Z, Li X, Tian J, Chu Y, Tian Y. Cloning, heterologous expression and characterization of a novel streptomyces trypsin in Bacillus subtilis SCK6. Int J Biol Macromol 2020; 147:890-897. [PMID: 31739056 DOI: 10.1016/j.ijbiomac.2019.09.248] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/21/2019] [Accepted: 09/24/2019] [Indexed: 01/10/2023]
Abstract
A novel streptomyces trypsin GM2938 was selected as the object of study. The active GM2938 contains 223 amino acid residues. Constructing recombinant plasmid and transforming Bacillus subtilis SCK6, the heterogenous expression of GM2938 was achieved. Through optimization of fermentation conditions, the expression level of GM2938 reached 1622.2 U/mL (esterase activity) and 33.8 U/mL (amidase activity). The recombinant trypsin was purified and measured: the specific activity of esterase was 5.6 × 103 U/mg, and the specific activity of amidase was 1.1 × 103 U/mg. Furthermore, the enzymatic properties of GM2938 were explore: the optimal reaction temperature and pH were 50 °C and 9.0, respectively; the recombinant enzyme show high stability at 25 °C and range of pH 5.0-9.0; Ca2+, K+, Mg2+, EDTA, DTT, DMSO, methanol, glycerin and ethanediol could promote the esterase and amidase activities at the investigated concentrations, while Fe2+, SDS, tritonx-100, acetone, chloroform and n-hexane inhibited the trypsin activities. Kinetic parameters of GM2938 were calculated: the Km of BAEE was 3.15 × 10-5 mol·L-1, Vmax value was 2.87 × 10-4 mol·L-1·min-1; the Km of BAPAN was 2.20 × 10-4 mol·L-1, the Vmax was 2.40 × 10-4 mol·L-1·min-1. These properties give trypsin GM2938 a potential application prospect.
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Affiliation(s)
- Zhikuan Wang
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education and College of Biomass Science & Engineering, Sichuan University, Chengdu 610065, PR China
| | - Xiaoguang Li
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education and College of Biomass Science & Engineering, Sichuan University, Chengdu 610065, PR China
| | - Jiewei Tian
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education and College of Biomass Science & Engineering, Sichuan University, Chengdu 610065, PR China
| | - Yiwen Chu
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, PR China.
| | - Yongqiang Tian
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education and College of Biomass Science & Engineering, Sichuan University, Chengdu 610065, PR China.
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Khan BM, Cheong KL, Liu Y. ATPS: “Aqueous two-phase system” as the “answer to protein separation” for protein-processing food industry. Crit Rev Food Sci Nutr 2018; 59:3165-3178. [PMID: 29883189 DOI: 10.1080/10408398.2018.1486283] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Bilal Muhammad Khan
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Shantou, Guangdong, PR China
| | - Kit-Leong Cheong
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Shantou, Guangdong, PR China
| | - Yang Liu
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Shantou, Guangdong, PR China
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Alhelli AM, Abdul Manap MY, Mohammed AS, Mirhosseini H, Suliman E, Shad Z, Mohammed NK, Meor Hussin AS. Use of response surface methodology for partitioning, one-step purification of alkaline extracellular lipase from Penicillium candidum (PCA 1/TT031). J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1039:66-73. [DOI: 10.1016/j.jchromb.2016.10.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 09/27/2016] [Accepted: 10/26/2016] [Indexed: 10/20/2022]
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7
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Alhelli AM, Abdul Manap MY, Mohammed AS, Mirhosseini H, Suliman E, Shad Z, Mohammed NK, Meor Hussin AS. Response Surface Methodology Modelling of an Aqueous Two-Phase System for Purification of Protease from Penicillium candidum (PCA 1/TT031) under Solid State Fermentation and Its Biochemical Characterization. Int J Mol Sci 2016; 17:E1872. [PMID: 27845736 PMCID: PMC5133872 DOI: 10.3390/ijms17111872] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 11/01/2016] [Accepted: 11/03/2016] [Indexed: 11/18/2022] Open
Abstract
Penicillium candidum (PCA 1/TT031) synthesizes different types of extracellular proteases. The objective of this study is to optimize polyethylene glycol (PEG)/citrate based on an aqueous two-phase system (ATPS) and Response Surface Methodology (RSM) to purify protease from Penicillium candidum (PCA 1/TT031). The effects of different PEG molecular weights (1500-10,000 g/mol), PEG concentration (9%-20%), concentrations of NaCl (0%-10%) and the citrate buffer (8%-16%) on protease were also studied. The best protease purification could be achieved under the conditions of 9.0% (w/w) PEG 8000, 5.2% NaCl, and 15.9% sodium citrate concentration, which resulted in a one-sided protease partitioning for the bottom phase with a partition coefficient of 0.2, a 6.8-fold protease purification factor, and a yield of 93%. The response surface models displayed a significant (p ≤ 0.05) response which was fit for the variables that were studied as well as a high coefficient of determination (R²). Similarly, the predicted and observed values displayed no significant (p > 0.05) differences. In addition, our enzyme characterization study revealed that Penicillium candidum (PCA 1/TT031) produced a slight neutral protease with a molecular weight between 100 and 140 kDa. The optimal activity of the purified enzyme occurred at a pH of 6.0 and at a temperature of 50 °C. The stability between different pH and temperature ranges along with the effect of chemical metal ions and inhibitors were also studied. Our results reveal that the purified enzyme could be used in the dairy industry such as in accelerated cheese ripening.
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Affiliation(s)
- Amaal M Alhelli
- Faculty of Food Science and Technology, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
- Institute of technology, Middle technical University, 29008 Alzafaranya, Baghdad, Iraq.
| | - Mohd Yazid Abdul Manap
- Faculty of Food Science and Technology, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
- Halal Products Research Institute, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
| | - Abdulkarim Sabo Mohammed
- Faculty of Food Science and Technology, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
| | - Hamed Mirhosseini
- Faculty of Food Science and Technology, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
| | - Eilaf Suliman
- Faculty of Food Science and Technology, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
| | - Zahra Shad
- Faculty of Food Science and Technology, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
| | - Nameer Khairulla Mohammed
- Faculty of Food Science and Technology, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
| | - Anis Shobirin Meor Hussin
- Faculty of Food Science and Technology, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
- Halal Products Research Institute, University Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia.
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Rocha MV, Di Giacomo M, Beltramino S, Loh W, Romanini D, Nerli BB. A sustainable affinity partitioning process to recover papain from Carica papaya latex using alginate as macro-ligand. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.05.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gomez G, Leiva L, Nerli BB. Aqueous two-phase systems: A simple methodology to obtain mixtures enriched in main toxins of Bothrops alternatus venom. Protein Expr Purif 2016; 124:68-74. [DOI: 10.1016/j.pep.2015.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 08/08/2015] [Accepted: 09/08/2015] [Indexed: 11/28/2022]
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10
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Partitioning and purification of menadione induced NAD(P)H oxidase from Phanerochaete chrysosporium in aqueous two-phase systems. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.03.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Loureiro DB, Romanini D, Tubio G. Structural and functional analysis of Aspergillus niger xylanase to be employed in polyethylenglycol/salt aqueous two-phase extraction. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2016. [DOI: 10.1016/j.bcab.2015.12.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Gong JS, Li W, Zhang DD, Xie MF, Yang B, Zhang RX, Li H, Lu ZM, Xu ZH, Shi JS. Biochemical Characterization of An Arginine-Specific Alkaline Trypsin from Bacillus licheniformis. Int J Mol Sci 2015; 16:30061-74. [PMID: 26694369 PMCID: PMC4691143 DOI: 10.3390/ijms161226200] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 12/08/2015] [Accepted: 12/09/2015] [Indexed: 11/23/2022] Open
Abstract
In the present study, we isolated a trypsin-producing strain DMN6 from the leather waste and identified it as Bacillus licheniformis through a two-step screening strategy. The trypsin activity was increased up to 140 from 20 U/mL through culture optimization. The enzyme was purified to electrophoretic homogeneity with a molecular mass of 44 kDa by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and the specific activity of purified enzyme is 350 U/mg with Nα-Benzoyl-l-arginine ethylester as the substrate. The optimum temperature and pH for the trypsin are 65 °C and pH 9.0, respectively. Also, the enzyme can be significantly activated by Ba2+. This enzyme is relatively stable in alkaline environment and displays excellent activity at low temperatures. It could retain over 95% of enzyme activity after 180 min of incubation at 45 °C. The distinguished activity under low temperature and prominent stability enhance its catalytic potential. In the current work, the open reading frame was obtained with a length of 1371 nucleotides that encoded a protein of 456 amino acids. These data would warrant the B. licheniformis trypsin as a promising candidate for catalytic application in collagen preparation and leather bating through further protein engineering.
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Affiliation(s)
- Jin-Song Gong
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Wei Li
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Dan-Dan Zhang
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Min-Feng Xie
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Biao Yang
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Rong-Xian Zhang
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Heng Li
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Zhen-Ming Lu
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Zheng-Hong Xu
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Jin-Song Shi
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
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Effect of sodium chloride on solute–solvent interactions in aqueous polyethylene glycol–sodium sulfate two-phase systems. J Chromatogr A 2015; 1425:51-61. [PMID: 26615710 DOI: 10.1016/j.chroma.2015.11.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 01/01/2023]
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14
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Phase Separation Behavior and System Properties of Aqueous Two-Phase Systems with Polyethylene Glycol and Different Salts: Experiment and Correlation. ACTA ACUST UNITED AC 2015. [DOI: 10.1155/2015/682476] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The phase separation behaviors of PEG1000/sodium citrate, PEG4000/sodium citrate, PEG1000/ammonium sulfate, and PEG4000/ammonium sulfate aqueous two-phase systems were investigated, respectively. There are two distinct situations for the phase separation rate in the investigated aqueous two-phase systems: one state is top-continuous phase with slow phase separation rate and strong bottom-continuous phase with fast phase separation rate and weak volume ratio dependence. The system properties such as density, viscosity, and interfacial tension between top and bottom phases which have effects on the phase separation rate of aqueous two-phase systems were measured. The property parameter differences between the two phases increased with increasing tie line length and then improved the phase separation rate. Moreover, a modified correlation equation including the phase separation rate, tie line length, and physical properties of the four aqueous two-phase systems has been proposed and successfully tested in the bottom-continuous phase, whose coefficients were estimated through regression analysis. The predicted results of PEG1000/sodium citrate aqueous two-phase systems were verified through the stationary phase retention in the cross-axis countercurrent chromatography.
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Grilo AL, Raquel Aires-Barros M, Azevedo AM. Partitioning in Aqueous Two-Phase Systems: Fundamentals, Applications and Trends. SEPARATION AND PURIFICATION REVIEWS 2014. [DOI: 10.1080/15422119.2014.983128] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Abbasiliasi S, Tan JS, Ibrahim TAT, Kadkhodaei S, Ng HS, Vakhshiteh F, Ajdari Z, Mustafa S, Ling TC, Rahim RA, Ariff AB. Primary recovery of a bacteriocin-like inhibitory substance derived from Pediococcus acidilactici Kp10 by an aqueous two-phase system. Food Chem 2014; 151:93-100. [DOI: 10.1016/j.foodchem.2013.11.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 09/12/2013] [Accepted: 11/04/2013] [Indexed: 11/26/2022]
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17
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Rocha MV, Nerli BB. Molecular features determining different partitioning patterns of papain and bromelain in aqueous two-phase systems. Int J Biol Macromol 2013; 61:204-11. [DOI: 10.1016/j.ijbiomac.2013.06.055] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 06/20/2013] [Accepted: 06/28/2013] [Indexed: 11/29/2022]
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18
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Lombardi J, Woitovich Valetti N, Picó G, Boeris V. Obtainment of a highly concentrated pancreatic serine proteases extract from bovine pancreas by precipitation with polyacrylate. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.05.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Aqueous two-phase systems: new strategies for separation and purification of lectin from crude extract of Cratylia mollis seeds. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.05.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lima CA, Júnior ACF, Filho JLL, Converti A, Marques DAV, Carneiro-da-Cunha MG, Porto ALF. Two-phase partitioning and partial characterization of a collagenase from Penicillium aurantiogriseum URM4622: Application to collagen hydrolysis. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2013.03.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kavakçıoğlu B, Tarhan L. Initial purification of catalase from Phanerochaete chrysosporium by partitioning in poly(ethylene glycol)/salt aqueous two phase systems. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2012.12.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Rocha MV, Romanini D, Nerli BB, Tubio G. Pancreatic serine protease extraction by affinity partition using a free triazine dye. Int J Biol Macromol 2012; 50:303-9. [DOI: 10.1016/j.ijbiomac.2011.12.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/13/2011] [Accepted: 12/14/2011] [Indexed: 10/14/2022]
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LI JUNLAN, YU QUNLI, ZHANG LI, LIU LIANGLIANG, GUO ZHAOBIN. PURIFICATION AND CHARACTERISTICS OF TRYPSIN FROM THE PANCREAS OF TIBETAN SHEEP. J Food Biochem 2012. [DOI: 10.1111/j.1745-4514.2011.00588.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Lee A, Tang SKY, Mace CR, Whitesides GM. Denaturation of proteins by SDS and tetraalkylammonium dodecyl sulfates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:11560-74. [PMID: 21834533 PMCID: PMC3172379 DOI: 10.1021/la201832d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
This article describes the use of capillary electrophoresis (CE) to examine the influence of different cations (C(+); C(+) = Na(+) and tetra-n-alkylammonium, NR(4)(+), where R = Me, Et, Pr, and Bu) on the rates of denaturation of bovine carbonic anhydrase II (BCA) in the presence of anionic surfactant dodecylsulfate (DS(-)). An analysis of the denaturation of BCA in solutions of Na(+)DS(-) and NR(4)(+)DS(-) (in Tris-Gly buffer) indicated that the rates of formation of complexes of denatured BCA with DS(-) (BCA(D)-DS(-)(n,sat)) are indistinguishable and independent of the cation below the critical micellar concentration (cmc) and independent of the total concentration of DS(-) above the cmc. At concentrations of C(+)DS(-) above the cmc, BCA denatured at rates that depended on the cation; the rates decreased by a factor >10(4) in the order of Na(+) ≈ NMe(4)(+) > NEt(4)(+) > NPr(4)(+) > NBu(4)(+), which is the same order as the values of the cmc (which decrease from 4.0 mM for Na(+)DS(-) to 0.9 mM for NBu(4)(+)DS(-) in Tris-Gly buffer). The relationship between the cmc values and the rates of formation of BCA(D)-DS(-)(n,sat()) suggested that the kinetics of denaturation of BCA involve the association of this protein with monomeric DS(-) rather than with micelles of (C(+)DS(-))(n). A less-detailed survey of seven other proteins (α-lactalbumin, β-lactoglobulin A, β-lactoglobulin B, carboxypeptidase B, creatine phosphokinase, myoglobin, and ubiquitin) showed that the difference between Na(+)DS(-) and NR(4)(+)DS(-) observed with BCA was not general. Instead, the influence of NR(4)(+) on the association of DS(-) with these proteins depended on the protein. The selection of the cation contributed to the properties (including the composition, electrophoretic mobility, and partitioning behavior in aqueous two-phase systems) of aggregates of denatured protein and DS(-). These results suggest that the variation in the behavior of NR(4)(+)DS(-) with changes in R may be exploited in methods used to analyze and separate mixtures of proteins.
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Affiliation(s)
- Andrew Lee
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts, USA
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Effect of salt additives on partition of nonionic solutes in aqueous PEG–sodium sulfate two-phase system. J Chromatogr A 2011; 1218:5031-9. [DOI: 10.1016/j.chroma.2011.05.068] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Revised: 05/18/2011] [Accepted: 05/19/2011] [Indexed: 11/15/2022]
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26
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The partitioning of protease from Calotropis procera latex by aqueous two-phase systems and its hydrolytic pattern on muscle proteins. FOOD AND BIOPRODUCTS PROCESSING 2011. [DOI: 10.1016/j.fbp.2010.02.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Chaiwut P, Rawdkuen S, Benjakul S. Extraction of protease from Calotropis procera latex by polyethylene glycol–salts biphasic system. Process Biochem 2010. [DOI: 10.1016/j.procbio.2010.04.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Purification and in situ immobilization of lipase from of a mutant of Trichosporon laibacchii using aqueous two-phase systems. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:909-12. [DOI: 10.1016/j.jchromb.2010.01.045] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Revised: 01/27/2010] [Accepted: 01/27/2010] [Indexed: 11/19/2022]
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