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Wang M, Zhou J, Zhang G, Liu Q, Zhang Q. Pyrrolidinyl ligand motif-assisted bovine serum albumin molecularly imprinted polymers with high specificity. J Colloid Interface Sci 2021; 609:102-113. [PMID: 34894545 DOI: 10.1016/j.jcis.2021.11.194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 11/25/2022]
Abstract
Ideal binding ligands for anchoring proteins are essential for the design and assembly of desirable molecularly imprinted polymers (MIPs). In this study, bovine serum albumin-MIPs (BSA-MIPs) were successfully prepared by orchestrating the involvement of orientation-controllable binding ligands via sequential thiol-ene click and thiol-ene-amine conjugation. We showed that the optimal thiol-ene-amine conjugates and binding ligands were decisive in determining the rebinding capacity and selectivity. The pyrrolidinyl MIPs exhibited the best adsorption capacity of 352 ± 22 mg/g and a superior imprinting factor of 4.72 among MIPs with various binding ligands. These favourable results were further studied by computational simulation and isothermal titration calorimetry (ITC). Molecular docking revealed the preferential binding free energy and H-bonds between BSA residues and the thiol-ene-amine conjugates. Meanwhile, the pyrrolidinyl ligand motif enabled entropy-favourable affinity to be achieved via hydrophobic effects with the BSA template by ITC thermodynamics. Because of these favourable bindings, the MIPs exhibited excellent adsorption specificity to BSA over competing proteins. The proof-of-concept of MIPs with orientation-controllable conjugates and proven binding ligands for target proteins demonstrates that this material is promising for use with a real biological sample.
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Affiliation(s)
- Mingqi Wang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Jingjing Zhou
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Guoxian Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Qing Liu
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China.
| | - Qiuyu Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China.
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2
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Mason M, Scampicchio M, Quinn CF, Transtrum MK, Baker N, Hansen LD, Kenealey JD. Calorimetric Methods for Measuring Stability and Reusability of Membrane Immobilized Enzymes. J Food Sci 2017; 83:326-331. [PMID: 29278666 DOI: 10.1111/1750-3841.14023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 11/17/2017] [Accepted: 12/01/2017] [Indexed: 11/30/2022]
Abstract
The aim of this work is to develop calorimetric methods for characterizing the activity and stability of membrane immobilized enzymes. Invertase immobilized on a nylon-6 nanofiber membrane is used as a test case. The stability of both immobilized and free invertase activity was measured by spectrophotometry and isothermal titration calorimetry (ITC). Differential scanning calorimetry was used to measure the thermal stability of the structure and areal concentration of invertase on the membrane. This is the 1st demonstration that ITC can be used to determine activity and stability of an enzyme immobilized on a membrane. ITC and spectrophotometry show maximum activity of free and immobilized invertase at pH 4.5 and 45 to 55 °C. ITC determination of the activity as a function of temperature over an 8-h period shows a similar decline of activity of both free and immobilized invertase at 55 °C. PRACTICAL APPLICATION Enzyme-catalyzed reactions occur in mild and environmentally friendly conditions, but are usually too costly to use in food manufacturing. When free enzymes are used, they are used once and replaced for each reaction, but enzymes immobilized on a solid support can be reused and have the additional advantage of being removed from the product. In this study, new calorimetric methods that are universally applicable to characterizing immobilized enzymes are used to determine the activity, stability, and reusability of invertase immobilized on a nanofiber support.
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Affiliation(s)
- Marco Mason
- Free Univ. of Bolzano/Bozen, Piazza Univ. 1, 39100, Bolzano, Italy.,Dept. of Nutrition, Dietetics and Food Science, Brigham Young Univ., Provo, UT 84602, U.S.A
| | | | | | - Mark K Transtrum
- Dept. of Physics and Astronomy, Brigham Young Univ., Provo, UT 84602, U.S.A
| | - Nicholas Baker
- Dept. of Nutrition, Dietetics and Food Science, Brigham Young Univ., Provo, UT 84602, U.S.A
| | - Lee D Hansen
- Dept. of Chemistry and Biochemistry, Brigham Young Univ., Provo, UT 84602, U.S.A
| | - Jason D Kenealey
- Dept. of Nutrition, Dietetics and Food Science, Brigham Young Univ., Provo, UT 84602, U.S.A
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3
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Development of conductometric biosensor array for simultaneous determination of maltose, lactose, sucrose and glucose. Talanta 2013; 115:200-7. [DOI: 10.1016/j.talanta.2013.04.065] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 04/17/2013] [Accepted: 04/24/2013] [Indexed: 11/22/2022]
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4
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Wang Y, Guan Y, Yang Y, Yu P, Huang Y. Enhancing the stability of immobilized catalase on activated carbon with gelatin encapsulation. J Appl Polym Sci 2013. [DOI: 10.1002/app.39226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yulin Wang
- State Key Laboratory of Chemical Resource Engineering, The Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; 15 Beisanhuan East Road; Beijing; 100029; People's Republic of China
| | - Yuepeng Guan
- Science College of Hunan Agricultural University; Furong District; Changsha City; Hunan Province; 410128; People's Republic of China
| | - Yin Yang
- State Key Laboratory of Chemical Resource Engineering, The Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; 15 Beisanhuan East Road; Beijing; 100029; People's Republic of China
| | - Peng Yu
- Science College of Hunan Agricultural University; Furong District; Changsha City; Hunan Province; 410128; People's Republic of China
| | - Yaqin Huang
- State Key Laboratory of Chemical Resource Engineering, The Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; 15 Beisanhuan East Road; Beijing; 100029; People's Republic of China
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R. R, S. S. Improved biochemical characteristics of crosslinked β-glucosidase on nanoporous silica foams. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2012.08.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mazi H, Emregul E, Rzaev ZMO, Kibarer G. Preparation and properties of invertase immobilized on a poly(maleic anhydride-hexen-1) membrane. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 17:821-35. [PMID: 16909948 DOI: 10.1163/156856206777656490] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Poly(maleic anhydride-alt-hexen-1)(poly(MA-alt-H-1)) has been synthesized by radical polymerization and characterized by DSC, FT-IR, acid number determination, viscometric and NMR methods. Data showed that the co-polymer is an alternating co-polymer whose composition does not depend on the monomer feed composition. Invertase was immobilized onto a poly(MA-alt-H-1) membrane via glutaraldehyde and bovine serum albumin. The Km value of poly(MA-alt-H-1)-invertase was approximately 4.4-fold higher than the free enzyme, indicating decreased affinity by the invertase for its substrate (sucrose), whereas Vmax was lower for the immobilized invertase. Immobilization improved the pH stability of the enzyme, as well as its temperature stability. Immobilized samples obtained were stable and could be used many times over a period of 2 months without considerable activity loss.
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Affiliation(s)
- Hidayet Mazi
- Department of Chemistry, Faculty of Science, Hacettepe University, 06532, Ankara, Turkey
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Tanriverdi S, Tuncagil S, Toppare L. A New Amperometric Alcohol Oxidase Biosensor Based on Conducting Polymer of (4,7-Dithien-2-yl-2, 1,3-benzothiadiazole). JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2012. [DOI: 10.1080/10601325.2012.649210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mohd Zain NA, Mohd Suardi S, Idris A. Hydrolysis of liquid pineapple waste by invertase immobilized in PVA–alginate matrix. Biochem Eng J 2010. [DOI: 10.1016/j.bej.2010.02.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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de Los Angeles Calixto-Romo M, Santiago-Hernández JA, Vallejo-Becerra V, Amaya-Delgado L, del Carmen Montes-Horcasitas M, Hidalgo-Lara ME. Expression, purification and immobilization of the intracellular invertase INVA, from Zymomonas mobilis on crystalline cellulose and Nylon-6. J Ind Microbiol Biotechnol 2008; 35:1455-63. [PMID: 18712537 DOI: 10.1007/s10295-008-0447-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2008] [Accepted: 07/30/2008] [Indexed: 11/25/2022]
Abstract
This paper presents two immobilization methods for the intracellular invertase (INVA), from Zymomonas mobilis. In the first method, a chimeric protein containing the invertase INVA, fused through its C-terminus to CBDCex from Cellulomonas fimi was expressed in Escherichia coli strain BL21 (DE3). INVA was purified and immobilized on crystalline cellulose (Avicel) by means of affinity, in a single step. No changes were detected in optimal pH and temperature when INVA-CBD was immobilized on Avicel, where values of 5.5 and 30 degrees C, respectively, were registered. The kinetic parameters of the INVA-CBD fusion protein were determined in both its free form and when immobilized on Avicel. Km and Vmax were affected with immobilization, since both showed an increase of up to threefold. Additionally, we found that subsequent to immobilization, the INVA-CBD fusion protein was 39% more susceptible to substrate inhibition than INVA-CBD in its free form. The second method of immobilization was achieved by the expression of a 6xHis-tagged invertase purified on Ni-NTA resin, which was then immobilized on Nylon-6 by covalent binding. An optimal pH of 5.5 and a temperature of 30 degrees C were maintained, subsequent to immobilization on Nylon-6 as well as with immobilization on crystalline cellulose. The kinetic parameters relating to Vmax increased up to 5.7-fold, following immobilization, whereas Km increased up to 1.7-fold. The two methods were compared showing that when invertase was immobilized on Nylon-6, its activity was 1.9 times that when immobilized on cellulose for substrate concentrations ranging from 30 to 390 mM of sucrose.
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Affiliation(s)
- María de Los Angeles Calixto-Romo
- Departamento de Biotecnología y Bioingeniería, CINVESTAV-IPN. Av. Instituto Politécnico, Nacional 2508 Col. San Pedro Zacatenco, CP 07360, Mexico D.F., Mexico
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Kim YH, Stites WE. Effects of excluded volume upon protein stability in covalently cross-linked proteins with variable linker lengths. Biochemistry 2008; 47:8804-14. [PMID: 18656955 DOI: 10.1021/bi800297j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To explore the effects of molecular crowding and excluded volume upon protein stability, we used a series of cross-linking reagents with nine different single-cysteine mutants of staphylococcal nuclease to make covalently linked dimers. These cross-linkers ranged in length from 10.5 to 21.3 A, compelling separations which would normally be found only in the most concentrated protein solutions. The stabilities of the dimeric proteins and monomeric controls were determined by guanidine hydrochloride and thermal denaturation. Dimers with short linkers tend to exhibit pronounced three-state denaturation behavior, as opposed to the two-state behavior of the monomeric controls. Increasing linker length leads to less pronounced three-state behavior. The three-state behavior is interpreted in a three-state model where cross-linked native protein dimer, N-N, interconverts in a two-state transition with a dimer where one protein subunit is denatured, N-D. The remaining native protein in turn can denature in another two-state transition to a state, D-D, in which both tethered proteins are denatured. Three-state behavior is best explained by excluded volume effects in the denatured state. For many dimers, linkers longer than 17 A removed most three-state character. This sets a limit on the flexibility and size of the denatured state. Notably, in contradiction to theoretical predictions, these cross-linked dimers were not stabilized. The failure of these predictions is possibly due to neglect of the alteration in hydrophobic exposure that accompanies any significant reduction in the conformational space of the denatured state.
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Affiliation(s)
- Yun Ho Kim
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701-1021, USA
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Idris A, Zain NAM, Suhaimi MS. Immobilization of Baker's yeast invertase in PVA–alginate matrix using innovative immobilization technique. Process Biochem 2008. [DOI: 10.1016/j.procbio.2007.12.008] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Emregul E, Sungur S, Akbulut U. Polyacrylamide–gelatine carrier system used for invertase immobilization. Food Chem 2006. [DOI: 10.1016/j.foodchem.2005.05.017] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Amaya-Delgado L, Hidalgo-Lara M, Montes-Horcasitas M. Hydrolysis of sucrose by invertase immobilized on nylon-6 microbeads. Food Chem 2006. [DOI: 10.1016/j.foodchem.2005.07.048] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Extracellular Proteolytic Enzymes of Azospirillum brasilense Strain Sp7 and Regulation of Their Activity by a Homologous Lectin. APPL BIOCHEM MICRO+ 2005. [DOI: 10.1007/s10438-005-0066-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
Enzyme immobilisation is experiencing an important transition. Combinatorial approaches are increasingly applied in the design of robust immobilised enzymes by rational combination of fundamental immobilisation techniques (i.e. non-covalent adsorption, covalent binding, entrapment and encapsulation) or with other relevant technologies. The objective is to solve specific problems that cannot be solved by one of these basic immobilisation techniques.
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Affiliation(s)
- Linqiu Cao
- DMV-International, P.O. Box 13, 5460 BA, Veghel, The Netherlands.
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Mislovicová D, Masárová J, Vikartovská A, Gemeiner P, Michalková E. Biospecific immobilization of mannan-penicillin G acylase neoglycoenzyme on Concanavalin A-bead cellulose. J Biotechnol 2005; 110:11-9. [PMID: 15099901 DOI: 10.1016/j.jbiotec.2004.01.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2003] [Revised: 12/08/2003] [Accepted: 01/16/2004] [Indexed: 11/26/2022]
Abstract
The matter of this work was to evaluate possibilities of biospecific immobilization of synthetic mannan-penicillin G acylase neoglycoconjugate on Concanavalin A support. The conjugate containing 37% (w/w) of yeast mannan was prepared. Significant biospecific interaction of this neoglycoenzyme with Con A was confirmed by precipitation method. The biospecific sorption of conjugate was investigated using Concanavalin A-triazine bead celluloses MT-100 with different content of Con A (from 1.4 to 9.8 mgCon A/gwet support). The results obtained under optimal conditions were compared with those from covalent immobilization of PGA. The sorbent capacity was observed higher for covalent binding of enzyme. On the other hand, the biospecifically immobilized neoglycoenzyme retained a greater amount of initial activity. The maximum amount of 6.6mgimmobilizedneoglycoenzyme/gwet Con A-sorbent (18.1 U/g) was achieved. The amount as well as activity of immobilized mannan-penicillin G acylase was increased by its two multiple layering on surface of sorbent (10.1mg, respectively, 23.5 U/gwet sorbent). Determined storage and operational (using flow calorimetric method) stabilities of biospecifically immobilized enzyme, were similar, possibly somewhat higher that those of covalent bound penicillin G acylase.
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Affiliation(s)
- Danica Mislovicová
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 38 Bratislava, Slovak Republic.
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Covalent immobilisation of invertase onto a reactive film composed of 2-hydroxyethyl methacrylate and glycidyl methacrylate: properties and application in a continuous flow system. Biochem Eng J 2003. [DOI: 10.1016/s1369-703x(02)00170-5] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shafiq K, . SA, . AE, . IUH. Optimization of Assay Conditions and Inoculum Size with Kinetic Analysis for Biosynthesis of Invertase by Saccharomyces cerevisiae GCB-K5. ACTA ACUST UNITED AC 2003. [DOI: 10.3923/jbs.2003.191.196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mislovicová D, Masárová J, Svitel J, Gemeiner P. Influence of mannan epitopes in glycoproteins–Concanavalin A interaction. Comparison of natural and synthetic glycosylated proteins. Int J Biol Macromol 2002; 30:251-8. [PMID: 12297232 DOI: 10.1016/s0141-8130(02)00035-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Two natural glycoproteins/glycoenzymes, invertase and glucoamylase, and two neoglycoconjugates, synthetized from Saccharomyces cerevisiae mannan, bovine serum albumin and penicillin G acylase were tested for interaction with lectin Concanavalin A (Con A). The interaction of natural and synthetic glycoproteins with Con A was studied using three different experimental methods: (i). quantitative precipitation in solution (ii). sorption to Con A immobilized on bead cellulose; and (iii). kinetic measurement of the interaction by surface plasmon resonance. Prepared neoglycoproteins were further characterized: saccharide content, molecular weight, polydispersion, kinetic and equilibrium association constants with Con A were determined. It can be concluded that the used conjugation method proved to be able to produce neoglycoproteins with similar properties like natural glycoproteins, i.e. enzymatic activity (protein part) and lectin binding activity (mannan part) were preserved and the neoglycoconjugates interact with Con A similarly as natural mannan-type glycoproteins.
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Affiliation(s)
- D Mislovicová
- Institute of Chemistry, Slovak Academy of Sciences, SK-842 38, Bratislava, Slovakia.
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