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Gagaoua M. Aqueous Methods for Extraction/Recovery of Macromolecules From Microorganisms of Atypical Environments: A Focus on Three Phase Partitioning. METHODS IN MICROBIOLOGY 2018. [DOI: 10.1016/bs.mim.2018.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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2
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Anti-angiogenic potential of trypsin inhibitor purified from Cucumis melo seeds: Homology modeling and molecular docking perspective. Int J Biol Macromol 2017; 96:118-128. [DOI: 10.1016/j.ijbiomac.2016.12.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 12/07/2016] [Accepted: 12/09/2016] [Indexed: 12/15/2022]
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3
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Carvalho BMA, Silva Júnior WF, Carvalho LM, Minim LA, Carvalho GGP. STERIC MASS ACTION MODEL FOR LACTOFERRIN ADSORPTION IN CRYOGEL WITH IMMOBILIZED COPPER IONS. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2016. [DOI: 10.1590/0104-6632.20160331s20140112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Samie N, Haerian B, Muniandy S, Green D, Ashouri M. Exhaustive study of the novel hyper alkalophil, thermostable, and chelator resistant metalloprotease. Appl Biochem Biotechnol 2015; 175:3397-417. [PMID: 25820296 DOI: 10.1007/s12010-015-1513-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 01/21/2015] [Indexed: 12/01/2022]
Abstract
Our newly discovered metalloprotease, designated as ALP NS12 was selected using gelatin agar plates with incubation at 100 °C. Subcloning of the fragments in to pUC118 to make E. coli HB101 (pPEMP01NS) with following two-step chromatography using diethylaminoethyl sepharose (DEAE-sepharose) and Sephadex G-100 columns to purify 97-kDa expressed enzyme was performed. Although activity of immobilized ALP NS12 on glass surface was established at temperatures between 70 and 120 °C and pH ranges 4.0-13.0, the optimum temperature and pH were achieved at 100 °C and 11.0, respectively. Enhancement of enzyme activity was obtained in the presence of 5 mM MnCl2 (91 %), CaCl2 (357 %), FeCl2 (175 %), MgCl2 (94 %), ZnCl2 (412 %), NiCl (86 %), NaCl (239 %), and Na-sulfate (81 %) while inhibition was observed with EDTA (5 mM), PMSF (3 mM), urea (8 M), and SDS (1 %) at 65, 37, 33, and 42 %, respectively. Consequently, the enzyme was well analyzed using crystallography and protein modeling. ALP NS12 can be applied in industrial processes at extreme temperatures and under highly basic conditions, chelators, and detergents.
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Affiliation(s)
- Nima Samie
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia,
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5
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Chang YL, Liu TC, Tsai ML. Selective isolation of trypsin inhibitor and lectin from soybean whey by chitosan/tripolyphosphate/genipin co-crosslinked beads. Int J Mol Sci 2014; 15:9979-90. [PMID: 24901528 PMCID: PMC4100134 DOI: 10.3390/ijms15069979] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 05/20/2014] [Accepted: 05/22/2014] [Indexed: 12/12/2022] Open
Abstract
Selective isolation of Kunitz trypsin inhibitor (KTI) and lectin from soybean whey solutions by different types of chitosan beads was investigated. The chitosan beads were co-crosslinked with tripolyphosphate/genipin in solutions at pH 5, 7 or 9 (CB5, CB7, CB9). The maximum adsorption ratios of chitosan beads to KTI and lectin were observed at pH 4.4 and 5.4, respectively; highly selective separation was also demonstrated at these pHs. The adsorption ratios increased with temperature, rising between 5 and 25 °C. CB9 produced the best adsorption ratio, followed by CB7 then CB5. The critical interaction governing absorption of chitosan beads to KTI and lectin could be hydrogen bonding. At pH 9, KTI and lectin desorbed efficiently from CB7 with desorption ratios of 80.9% and 81.4%, respectively. The desorption was most likely caused predominantly by electrostatic repulsion. KTI and lectin can effectively be selectively isolated from soybean whey using this novel separation technique.
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Affiliation(s)
- Yu-Lung Chang
- Department of Food Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 20224, Taiwan.
| | - Tristan C Liu
- Department of Food Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 20224, Taiwan.
| | - Min-Lang Tsai
- Department of Food Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 20224, Taiwan.
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6
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Metal-Chelating Nanopolymers for Antibody Purification from Human Plasma. Appl Biochem Biotechnol 2012; 168:1528-39. [DOI: 10.1007/s12010-012-9875-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 08/28/2012] [Indexed: 10/27/2022]
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7
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Çimen D, Denizli A. Immobilized metal affinity monolithic cryogels for cytochrome c purification. Colloids Surf B Biointerfaces 2012; 93:29-35. [DOI: 10.1016/j.colsurfb.2011.11.058] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Revised: 11/24/2011] [Accepted: 11/27/2011] [Indexed: 10/14/2022]
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8
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Baydemir G, Derazshamshir A, Andaç M, Andaç C, Denizli A. Reversible immobilization of glycoamylase by a variety of Cu2+-chelated membranes. J Appl Polym Sci 2012. [DOI: 10.1002/app.36837] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Altintaş EB, Yavuz H, Say R, Denizli A. Methacryloylamidoglutamic acid having porous magnetic beads as a stationary phase in metal chelate affinity chromatography. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 17:213-26. [PMID: 16411610 DOI: 10.1163/156856206774879045] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We have prepared a novel magnetic metal-chelate adsorbent utilizing methacryloylamidoglutamic acid (MAGA) as a metal-chelating ligand. MAGA was synthesized by using methacryloyl chloride and L-glutamic acid dihydrochloride. Magnetic beads with an average diameter of 50-100 microm were produced by suspension polymerization of 2-hydroxyethyl methacrylate (HEMA) and MAGA in the presence of Fe3O4 particles carried out in an aqueous dispersion medium. Magnetic beads were charged with the Cu2+ ions directly via MAGA for the adsorption of cytochrome c (cyt c) from aqueous solutions. The maximum cyt c adsorption capacity of the Cu2+-chelated beads (0.86 mmol/g Cu2+ loading) was found to be 37 mg/g at pH 8.0 in phosphate buffer. Cyt c adsorption on the poly(HEMA-MAGA) beads was 15.4 mg/g. Cu2+ charging increased the cyt c adsorption significantly (37 mg/g). Cyt c adsorption decreased with increasing temperature. Cyt c molecules could be adsorbed and desorbed five times with these adsorbents without noticeable loss in their cyt c adsorption capacity. The resulting magnetic chelator beads posses excellent long term storage stability.
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Affiliation(s)
- Evrim Banu Altintaş
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey
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10
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Tüzmen N, Kalburcu T, Denizli A. Immobilization of catalase via adsorption onto metal-chelated affinity cryogels. Process Biochem 2012. [DOI: 10.1016/j.procbio.2011.09.021] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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11
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Akamatsu K, Maruyama K, Chen W, Nakao A, Nakao SI. Drastic difference in porous structure of calcium alginate microspheres prepared with fresh or hydrolyzed sodium alginate. J Colloid Interface Sci 2011; 363:707-10. [DOI: 10.1016/j.jcis.2011.08.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 08/02/2011] [Accepted: 08/03/2011] [Indexed: 11/16/2022]
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12
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Ünlü N, Ceylan Ş, Erzengin M, Odabaşı M. Investigation of protein adsorption performance of Ni2+
-attached diatomite particles embedded in composite monolithic cryogels. J Sep Sci 2011; 34:2173-80. [DOI: 10.1002/jssc.201100269] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Revised: 05/18/2011] [Accepted: 05/18/2011] [Indexed: 11/09/2022]
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13
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Methacryloylamidohistidine in affinity ligands for immobilized metal-ion affinity chromatography of ferritin. BIOTECHNOL BIOPROC E 2011. [DOI: 10.1007/s12257-009-0162-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Erzengin M, Ünlü N, Odabaşı M. A novel adsorbent for protein chromatography: Supermacroporous monolithic cryogel embedded with Cu2+-attached sporopollenin particles. J Chromatogr A 2011; 1218:484-90. [DOI: 10.1016/j.chroma.2010.11.074] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 11/08/2010] [Accepted: 11/29/2010] [Indexed: 11/28/2022]
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15
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Köster J, Hayen H, von Wirén N, Weber G. Isoelectric focusing of small non-covalent metal species from plants. Electrophoresis 2010; 32:772-81. [PMID: 21192102 DOI: 10.1002/elps.201000529] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Revised: 11/08/2010] [Accepted: 11/09/2010] [Indexed: 12/12/2022]
Abstract
IEF is known as a powerful electrophoretic separation technique for amphoteric molecules, in particular for proteins. The objective of the present work is to prove the suitability of IEF also for the separation of small, non-covalent metal species. Investigations are performed with copper-glutathione complexes, with the synthetic ligand ethylenediamine-N,N'-bis(o-hydroxyphenyl)acetic acid (EDDHA) and respective metal complexes (Fe, Ga, Al, Ni, Zn), and with the phytosiderophore 2'-deoxymugineic acid (DMA) and its ferric complex. It is shown that ethylenediamine-N,N'-bis(o-hydroxyphenyl)acetic acid and DMA species are stable during preparative scale IEF, whereas copper-glutathione dissociates considerably. It is also shown that preparative scale IEF can be applied successfully to isolate ferric DMA from real plant samples, and that multidimensional separations are possible by combining preparative scale IEF with subsequent HPLC-MS analysis. Focusing of free ligands and respective metal complexes with di- and trivalent metals results in different pIs, but CIEF is usually needed for a reliable estimation of pI values. Limitations of the proposed methods (preparative IEF and CIEF) and consequences of the results with respect to metal speciation in plants are discussed.
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Affiliation(s)
- Jessica Köster
- Leibniz-Institut für Analytische Wissenschaften, ISAS, Dortmund, Germany
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16
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Sari MM. Investigation of Yeast Invertase Immobilization onto Cupric Ion-Chelated, Porous, and Biocompatible Poly(Hydroxyethyl Methacrylate-n-Vinyl Imidazole) Microspheres. Appl Biochem Biotechnol 2010; 163:1020-37. [DOI: 10.1007/s12010-010-9106-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Accepted: 10/10/2010] [Indexed: 10/18/2022]
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17
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LEELAPONGWATTANA KITTIMA, BENJAKUL SOOTTAWAT, VISESSANGUAN WONNOP, HOWELL NAZLINK. EFFECTS OF TRIMETHYLAMINE-N-OXIDE DEMETHYLASE (TMAOase) INHIBITORS AND ANTIOXIDANTS ON PHYSICOCHEMICAL AND BIOCHEMICAL CHANGES OF HADDOCK MUSCLE INDUCED BY LIZARDFISH TMAOase DURING FROZEN STORAGE. J Food Biochem 2010. [DOI: 10.1111/j.1745-4514.2010.00347.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Uzun L, Kara A, Osman B, Yılmaz E, Beşirli N, Denizli A. Removal of heavy-metal ions by magnetic beads containing triazole chelating groups. J Appl Polym Sci 2009. [DOI: 10.1002/app.30511] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Lo HF, Hu HY, Hung CP, Chen SC, Lin LL. Cobalt-chelated magnetic particles for one-step purification and immobilization of His6-taggedEscherichia coliγ-glutamyltranspeptidase. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242420903219167] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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20
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Platis D, Labrou NE. Application of a PEG/salt aqueous two-phase partition system for the recovery of monoclonal antibodies from unclarified transgenic tobacco extract. Biotechnol J 2009; 4:1320-7. [PMID: 19557796 DOI: 10.1002/biot.200800359] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Aqueous two-phase partition systems (ATPS) have been widely used for the separation of a large variety of biomolecules. In the present report, the application of a polyethylene glycol/phosphate (PEG/phosphate) ATPS for the separation of anti-HIV monoclonal antibodies 2G12 (mAb 2G12) and 4E10 (mAb 4E10) from unclarified transgenic tobacco crude extract was investigated. Optimal conditions that favor opposite phase partitioning of plant debris/mAb as well as high recovery and purification were found to be 13.1% w/w (PEG 1500), 12.5% w/w (phosphate) at pH 5 with a phase ratio of 1.3 and 8.25% w/w unclarified tobacco extract load. Under these conditions, mAb 2G12 and mAb 4E10 were partitioned at the bottom phosphate phase with 85 and 84% yield and 2.4- and 2.1-fold purification, respectively. The proposed ATPS was successfully integrated in an affinity-based purification protocol, using Protein A, yielding antibodies of high purity and yield. In this study, ATPS was shown to be suitable for initial protein recovery and partial purification of mAb from unclarified transgenic tobacco crude extract.
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Affiliation(s)
- Dimitris Platis
- Enzyme Technology Laboratory, Department of Agricultural Biotechnology, Agricultural University of Athens, Athens, Greece
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21
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Abstract
Alginate is a polysaccharide that is a block polymer consisting of block units of guluronic acid and mannuronic acid. It shows inherent biological affinity for a variety of enzymes such as pectinase, lipase, phospholipase D, a and ss amylases and glucoamylase. Taking advantage of its precipitation with Ca2+ and the above-mentioned property, alginate has been used for purification of these enzymes by affinity precipitation, aqueous two phase separation, macroaffinity ligand facilitated three phase partitioning, immobilized metal affinity chromatography and expanded bed affinity chromatography. Thus, this versatile marine resource has tremendous potential in bioseparation of proteins.
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Affiliation(s)
- Sulakshana Jain
- Chemistry Department, Indian Institute of Technology, New Delhi, India
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22
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Single-step purification of recombinant green fluorescent protein on expanded beds of immobilized metal affinity chromatography media. Biochem Eng J 2008. [DOI: 10.1016/j.bej.2008.07.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Emir S, Say R, Yavuz H, Denizli A. A New Metal Chelate Affinity Adsorbent for Cytochrome c. Biotechnol Prog 2008; 20:223-8. [PMID: 14763846 DOI: 10.1021/bp030033t] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have prepared a novel metal-chelate adsorbent utilizing N-methacryloyl-L-histidine methyl ester (MAH) as a metal-chelating ligand. MAH was synthesized by using methacryloyl chloride and l-histidine methyl ester dihydrochloride. Spherical beads with an average diameter of 75-125 microm were produced by suspension polymerization of 2-hydroxyethyl methacrylate (HEMA) and MAH carried out in an aqueous dispersion medium. Then, Cu(2+) ions were chelated directly on the chelating beads. Cu(2+)-chelated beads were used in the adsorption of cytochrome c (cyt c) from aqueous solutions. The maximum cyt c adsorption capacity of the Cu(2+)-chelated beads (658.2 micromol/g Cu(2+) loading) was found to be 31.7 mg/g at pH 10 in phosphate buffer. The nonspecific cyt c adsorption on the naked PHEMA beads was 0.2 mg/g. Cyt c adsorption increased with increasing Cu(2+) loading. Cyt c adsorption capacity was demonstrated for the buffer types with the effects in the order phosphate > HEPES > MOPS > MES > Tris-HCl. Cyt c molecules could be adsorbed and desorbed five times with these adsorbents without noticeable loss in their cyt c adsorption capacity.
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Affiliation(s)
- Sibel Emir
- Department of Chemistry, Anadolu University, Eskişehir, Turkey
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24
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Senel S, Uzun L, Kara A, Denizli A. Heavy Metal Removal from Synthetic Solutions with Magnetic Beads Under Magnetic Field. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2008. [DOI: 10.1080/10601320802168801] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Integrated bioprocess for the production and purification of recombinant proteins by affinity chromatography in Escherichia coli. Bioprocess Biosyst Eng 2008; 32:149-58. [DOI: 10.1007/s00449-008-0227-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2007] [Accepted: 04/14/2008] [Indexed: 11/26/2022]
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26
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Leelapongwattana K, Benjakul S, Visessanguan W, Howell NK. Effect of some additives on the inhibition of lizardfish trimethylamine-N-oxide demethylase and frozen storage stability of minced flesh. Int J Food Sci Technol 2008. [DOI: 10.1111/j.1365-2621.2006.01466.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Derazshamshir A, Ergün B, Peşint G, Odabaşı M. Preparation of Zn2+-chelated poly(HEMA-MAH) cryogel for affinity purification of chicken egg lysozyme. J Appl Polym Sci 2008. [DOI: 10.1002/app.28345] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Saz JM, Marina ML. High performance liquid chromatography and capillary electrophoresis in the analysis of soybean proteins and peptides in foodstuffs. J Sep Sci 2007; 30:431-51. [PMID: 17444213 DOI: 10.1002/jssc.200600247] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The increasing interest in functional and healthy food products has promoted the use of soybean in the manufacture of foods for human consumption. Soybean basic products (soybeans, textured soybean, soybean flour, soybean protein concentrate and soybean protein isolate) as well as soybean derivatives (soybean dairy-like products, soybean drinks with fruits, meat analogues, etc.) are commercially available. In addition, due to the interesting nutritional and functional properties of soybean proteins, they are usually employed as ingredient in the elaboration of a large number of food products such as bakery or meat products among others. In spite of the good characteristics of soybean proteins, their addition to some products is forbidden or allowed up to a certain limit. Therefore, analytical methodologies to achieve the determination of soybean proteins in foods are necessary in order to make possible adequate quality control and to prove that legal regulations controlling their addition are accomplished. However, this is not an easy task due to the diversity and complexity of the food matrices and the technological treatments to which some of these foods are submitted during their elaboration. This article presents for the first time a comprehensive review on the analytical methodologies developed using HPLC and CE to characterize soybeans and to analyse soybean proteins in meals. Moreover, the use of HPLC and CE in the characterization of soybean protein fractions and their hydrolyzates, and a study of their relationships to nutritional, functional and biomedical properties are included. Finally, the application of proteomic methodologies in soybean food technology is also reviewed.
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Affiliation(s)
- José María Saz
- Departamento de Química Analítica, Facultad de Química, Universidad de Alcalá, Madrid, Spain
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29
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N-methacryloyl-(l)-histidine methyl ester carrying porous magnetic beads for metal chelate adsorption of cytochrome c. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2007. [DOI: 10.1016/j.msec.2006.04.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Mondal K, Gupta MN. The affinity concept in bioseparation: Evolving paradigms and expanding range of applications. ACTA ACUST UNITED AC 2006; 23:59-76. [PMID: 16527537 DOI: 10.1016/j.bioeng.2006.01.004] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2005] [Revised: 01/26/2006] [Accepted: 01/30/2006] [Indexed: 11/19/2022]
Abstract
The meaning of the word affinity in the context of protein separation has undergone evolutionary changes over the years. The exploitation of molecular recognition phenomenon is no longer limited to affinity chromatography modes. Affinity based separations today include precipitation, membrane based purification and two-phase/three-phase extractions. Apart from the affinity ligands, which have biological relationship (in vivo) with the target protein, a variety of other ligands are now used in the affinity based separations. These include dyes, chelated metal ions, peptides obtained by phage display technology, combinatorial synthesis, ribosome display methods and by systematic evolution of ligands by exponential enrichment (SELEX). Molecular modeling techniques have also facilitated the designing of biomimetic ligands. Fusion proteins obtained by recombinatorial methods have emerged as a powerful approach in bioseparation. Overexpression in E. coli often result in inactive and insoluble inclusion bodies. A number of interesting approaches are used for simultaneous refolding and purification in such cases. Proteomics also needs affinity chromatography to reduce the complexity of the system before analysis by electrophoresis and mass spectrometry are made. At industrial level, validation, biosafety and process hygiene are also important aspects. This overview looks at these evolving paradigms and various strategies which utilize affinity phenomenon for protein separations.
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Affiliation(s)
- Kalyani Mondal
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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31
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Türkmen D, Yavuz H, Denizli A. Synthesis of tentacle type magnetic beads as immobilized metal chelate affinity support for cytochrome c adsorption. Int J Biol Macromol 2006; 38:126-33. [PMID: 16519931 DOI: 10.1016/j.ijbiomac.2006.01.018] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2005] [Revised: 01/26/2006] [Accepted: 01/26/2006] [Indexed: 11/16/2022]
Abstract
Magnetic poly(2-hydroxyethylmethacrylate) (mPHEMA) beads with an average diameter of 100-140 microm were produced by suspension polymerization in the presence of magnetite particles (i.e. Fe3O4). Specific surface area and average pore size of the magnetic beads was found to be 50 m2/g and 819 nm, respectively. Ester groups in the mPHEMA structure were converted to imine groups by reacting with poly(ethyleneimine) (PEI) in the presence of NaH. Amino (-NH2) content of PEI-attached mPHEMA beads was determined as 102 mg PEI/g. Then, Cu2+ ions were chelated on the magnetic beads in the range of 20-793 micromol Cu2+/g. Cytochrome c (cyt c) adsorption was performed on the metal chelating beads from aqueous solutions containing different amounts of cyt c at different pHs, Cu2+ loadings and temperatures. Cyt c adsorption on the mPHEMA/PEI beads was 4.6 mg/g. Cu2+ chelation increased the cyt c adsorption significantly (40.1 mg/g). Adsorption capacity increased with Cu2+ loading and then reached a saturation value. Cyt c adsorption decreased with increasing temperature. Cyt c molecules could be reversibly adsorbed and eluted ten times with the magnetic adsorbents without noticeable loss in their cyt c adsorption capacity. The applicability of two kinetic models including pseudo-first order and pseudo-second order model was estimated on the basis of comparative analysis of the corresponding rate parameters, equilibrium capacity and correlation coefficients. Results suggest that chemisorption processes could be the rate-limiting step in the adsorption process. In the last part of this article, cyt c adsorption experiments were performed in a magnetically stabilized fluidized bed (MSFB) system at optimum conditions determined from the batch experiments. The adsorption capacity decreased significantly from 46.8 to 15.4 mg/g polymer with the increase of the flow-rate from 0.5 to 4.0 ml/min. The resulting magnetic chelator beads possessed excellent long-term storage stability.
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Affiliation(s)
- Deniz Türkmen
- Department of Chemistry, Hacettepe University, Ankara, Turkey
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32
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Yavuz H, Odabaşi M, Akgöl S, Denizli A. Immobilized metal affinity beads for ferritin adsorption. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2006; 16:673-84. [PMID: 16001724 DOI: 10.1163/1568562053783713] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A new metal-chelate adsorbent utilizing N-methacryloyl-(L)-cysteine methyl ester (MAC) was prepared as a metal-chelating ligand. MAC was synthesized by using methacryloyl chloride and L-cysteine methyl ester dihydrochloride. Spherical beads with an average diameter of 150-200 microm were produced by suspension polymerization of 2-hydroxyethyl methacrylate (HEMA) and MAC carried out in an aqueous dispersion medium. Then, Fe(3+) ions were chelated directly on the beads. Properties such as specific surface area, specific pore volume and ligand occupation were determined. The specific surface area of the beads was found to be 18.9 m2/g. The total pore volume was 2.8 ml/g and represented a porosity over 52%. The average pore size of the poly(HEMA-MAC) beads was 620 nm. Fe(3+)-chelated beads were used in the adsorption of ferritin from aqueous solutions. Ferritin adsorption increased with increasing ferritin concentration. The maximum ferritin adsorption capacity of the Fe(3+)-chelated poly(HEMA-MAC) beads (Fe(3+) loading 0.81 mmol/g) was found to be 3.7 mg/g at pH 4.0 in acetate buffer. The non-specific ferritin adsorption on the poly(HEMA-MAC) beads were 0.4 mg/g. Adsorption behavior of ferritin could be modelled using both the Langmuir and Freundlich isotherms. Adsorption capacity decreased with increasing ionic strength of the binding buffer. Ferritin molecules could be adsorbed and desorbed five times with these adsorbents without noticeable loss in their ferritin adsorption capacity.
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Affiliation(s)
- Handan Yavuz
- Department of Chemistry, Biochemistry Division, Hacettepe University, Beytepe, Ankara, Turkey
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Bereli N, Uzun L, Yavuz H, Elkak A, Denizli A. Antibody purification using porous metal–chelated monolithic columns. J Appl Polym Sci 2006. [DOI: 10.1002/app.23894] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liu DZ, Lu YL, Cheng HC, Hou WC. Immobilized zinc affinity chromatography of pectin hydroxamic acids for purification of trypsin inhibitors from soybean and sweet potato. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2005; 53:10219-23. [PMID: 16366718 DOI: 10.1021/jf051574w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Commercial pectin (with a 94% degree of esterification, DE94) suspended in methanol was reacted with methanolic alkaline hydroxylamine at room temperature for 20 h to prepare pectin hydroxamic acids (PHAs). The prepared PHA was coupled to the epoxy-activated Sepharose 6B gel to get immobilized PHA resins. The immobilized PHA resin was then balanced in column with 2 mM ZnCl2 in 50 mM Tris-HCl buffer (pH 7.9) to test the immobilized Zn-PHA gel as solid phase for immobilized metal affinity chromatography for the purification of trypsin inhibitors (TIs) from soybean and sweet potato. Using TI activity staining, it was found that purified TIs from the commercial soybean and sweet potato after trypsin affinity column purification could be adsorbed onto an immobilized Zn-PHA affinity column and eluted by 100 mM EDTA in 10 mM Tris-HCl buffer (pH 7.9). The immobilized Zn-PHA affinity column was used for TI purifications from crude extracts of sweet potato. The recovery of TI activity for one step was 90%, with 19.74-fold purification increase.
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Affiliation(s)
- Der-Zen Liu
- Graduate Institute of Biomedical Materials and Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei 110, Taiwan
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Bajpai S, Sharma A, Nath Gupta M. Removal and recovery of antinutritional factors from soybean flour. Food Chem 2005. [DOI: 10.1016/j.foodchem.2004.02.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Garipcan B, Andaç M, Uzun L, Denizli A. Methacryloylamidocysteine functionalized poly(2-hydroxyethyl methacrylate) beads and its design as a metal-chelate affinity support for human serum albumin adsorption. REACT FUNCT POLYM 2004. [DOI: 10.1016/j.reactfunctpolym.2004.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Şenel S, Elmas B, Çamlı T, Andaç M, Denizli A. Poly(hydroxyethylmethacrylate‐N‐methacryloyl‐(L)‐histidine‐methyl‐ester) Based Metal‐Chelate Affinity Adsorbent for Separation of Lysozyme. SEP SCI TECHNOL 2004. [DOI: 10.1081/ss-200041105] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Odaba?? M, Uzun L, Denizli A. Porous magnetic chelator support for albumin adsorption by immobilized metal affinity separation. J Appl Polym Sci 2004. [DOI: 10.1002/app.20826] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Denizli A, Alkan M, Garipcan B, Ozkara S, Pişkin E. Novel metal-chelate affinity adsorbent for purification of immunoglobulin-G from human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2003; 795:93-103. [PMID: 12957173 DOI: 10.1016/s1570-0232(03)00550-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Metal-chelating ligand and/or comonomer 2-methacrylolyamidohistidine (MAH) was synthesized by using methacryloyl chloride and L-histidine methyl ester. MAH was characterized by NMR and FTIR. Spherical beads with an average diameter of 75-125 microm were produced by suspension polymerization of methylmethacrylate (MMA) and MAH carried out in an aqueous dispersion medium. Poly(MMA-MAH) beads had a specific surface area of 37.5 m(2)/g. Poly(MMA-MAH) beads were characterized by water uptake studies, FTIR, SEM and elemental analysis. Elemental analysis of MAH for nitrogen was estimated as 34.7 microM/g of polymer. Then, Cu(2+) ions were chelated on the beads. Cu(2+)-chelated beads with a swelling ratio of 38% were used in the adsorption of human-immunoglobulin G (HIgG) from both aqueous solutions and human plasma. The maximum adsorption capacities of the Cu(2+)-chelated beads were found to be 12.2 mg/g at pH 6.5 in phosphate buffer and 15.7 mg/g at pH 7.0 in MOPS. Higher adsorption value was obtained from human plasma (up to 54.3 mg/g) with a purity of 90.7%. The metal-chelate affinity beads allowed one-step separation of HIgG from human plasma. The adsorption-desorption cycle was repeated 10 times using the same beads without noticeable loss in their HIgG adsorption capacity.
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Affiliation(s)
- Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey.
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Duranti M, Barbiroli A, Scarafoni A, Tedeschi G, Morazzoni P. One-step purification of Kunitz soybean trypsin inhibitor. Protein Expr Purif 2003; 30:167-70. [PMID: 12880764 DOI: 10.1016/s1046-5928(03)00106-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A fast and simple method for the extraction and purification of Kunitz trypsin inhibitor from soybean seeds is described. The first step consisted in the heat treatment of whole soybean seeds in water at 60 degrees C for 90 min. It was found that 8.4% of total trypsin inhibitory activity of the seeds was secreted during heat treatment. The aqueous medium was loaded onto an affinity chromatography column with immobilized trypsin. The retained fraction, eluted with 0.01 N HCl, contained the purified Kunitz trypsin inhibitor, which was subsequently stabilized by freeze-drying without loss of activity. From 1g soybean seeds, 0.7 mg inhibitor with a specific trypsin inhibitory (TI) activity of 11,430 TIU/mg was obtained. The yield was greater than that obtained with established procedures. Due to the ease of the procedure proposed, the method is readily scalable to pilot plant or industrial preparations.
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Affiliation(s)
- Marcello Duranti
- Dipartimento di Scienze Molecolari Agroalimentari, Università di Milano, Via Celoria 2, I-20133 Milan, Italy.
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