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Zhu X, Aoyama E, Birk AV, Onasanya O, Carr WH, Mourokh L, Minteer SD, Vittadello M. Cytochrome c oxidase oxygen reduction reaction induced by cytochrome c on nickel-coordination surfaces based on graphene oxide in suspension. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2020; 1861:148262. [PMID: 32673675 DOI: 10.1016/j.bbabio.2020.148262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 07/01/2020] [Accepted: 07/07/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND The electrochemical and spectroscopic investigation of bacterial electron-transfer proteins stabilized on solid state electrodes has provided an effective approach for functional respiratory enzyme studies. METHODS We assess the biocompatibility of carboxylated graphene oxide (CGO) functionalized with Nickel nitrilotriacetic groups (CGO-NiNTA) ccordinating His-tagged cytochrome c oxidase (CcO) from Rhodobacter sphaeroides. RESULTS Kinetic studies employing UV-visible absorption spectroscopy confirmed that the immobilized CcO oxidized horse-heart cytochrome c (Cyt c) albeit at a slower rate than isolated CcO. The oxygen reduction reaction as catalyzed by immobilized CcO could be clearly distinguished from that arising from CGO-NiNTA in the presence of Cyt c and dithiothreitol (DTT) as a sacrificial reducing agent. Our findings indicate that while the protein content is about 3.7‰ by mass with respect to the support, the contribution to the oxygen consumption activity averaged at 56.3%. CONCLUSIONS The CGO-based support stabilizes the free enzyme which, while capable of Cyt c oxidation, is unable to carry out oxygen consumption in solution on its own under our conditions. The turnover rate for the immobilized CcO was as high as 240 O2 molecules per second per CcO unit. GENERAL SIGNIFICANCE In vitro investigations of electron flow on isolated components of bacterial electron-transfer enzymes immobilized on the surface of CGO in suspension are expected to shed new light on microbial bioenergetic functions, that could ultimately contribute toward the improvement of performance in living organisms.
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Affiliation(s)
- Xiaoping Zhu
- Department of Chemistry and Environmental Science, Medgar Evers College of the City University of New York (CUNY), Brooklyn, NY 11225, USA
| | - Erika Aoyama
- Department of Chemistry, The University of Utah, Salt Lake City, UT 84112, USA
| | - Alexander V Birk
- Department of Chemistry and Environmental Science, Medgar Evers College of the City University of New York (CUNY), Brooklyn, NY 11225, USA; Department of Biology, York College of CUNY, Jamaica, NY 11451, USA
| | - Oladapo Onasanya
- Department of Chemistry and Environmental Science, Medgar Evers College of the City University of New York (CUNY), Brooklyn, NY 11225, USA
| | - William H Carr
- Department of Biology, Medgar Evers College of the City University of New York (CUNY), Brooklyn, NY 11225, USA
| | - Lev Mourokh
- Department of Physics, Queens College of CUNY, Queens, NY 11367, USA; The Graduate Center of CUNY, New York, NY 10016, USA
| | - Shelley D Minteer
- Department of Chemistry, The University of Utah, Salt Lake City, UT 84112, USA
| | - Michele Vittadello
- Department of Chemistry and Environmental Science, Medgar Evers College of the City University of New York (CUNY), Brooklyn, NY 11225, USA; The Graduate Center of CUNY, New York, NY 10016, USA.
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52
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Moriiwa Y, Suzuki N, Shoji A, Yanagida A. Analysis of Complexation Interactions between Metal Ions and Drugs under Pseudo-physiological pH Conditions by a High-throughput Screening Method Using a Solid-phase Extraction Cartridge. ANAL SCI 2020; 36:709-715. [PMID: 31866609 DOI: 10.2116/analsci.19p413] [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] [Indexed: 11/23/2022]
Abstract
A high-throughput screening method for the complexation between metal ions and drugs was established by combining solid-phase extraction (SPE) using a nitrilotriacetic acid (NTA) modified silica spin cartridge with subsequent HPLC analysis. First, a test metal ion solution was passed through the NTA cartridge, then a test drug solution diluted in phosphate buffered saline (pH 7.4) was passed through the metal-chelated NTA cartridge. The complexation behavior between the metal and the drug on the NTA cartridge was evaluated by HPLC quantification of the drug in the SPE eluate. Comprehensive analysis of the complexation behavior between 11 different metal ions and 55 drugs showed that Cu2+, Ni2+, Co2+, Zn2+, Cr3+ and Fe3+ formed complexes with 12, 5, 4, 2, 1 and 1 kinds of drugs, respectively. Bromazepam selectively formed complexes with Cu2+, Ni2+ and Co2+.
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Affiliation(s)
- Yukiko Moriiwa
- Department of Biomedical Analysis, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Naoko Suzuki
- Department of Biomedical Analysis, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Atsushi Shoji
- Department of Biomedical Analysis, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Akio Yanagida
- Department of Biomedical Analysis, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
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53
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Arshavsky-Graham S, Urmann K, Salama R, Massad-Ivanir N, Walter JG, Scheper T, Segal E. Aptamers vs. antibodies as capture probes in optical porous silicon biosensors. Analyst 2020; 145:4991-5003. [PMID: 32519701 DOI: 10.1039/d0an00178c] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Over the past decade aptamers have emerged as a promising class of bioreceptors for biosensing applications with significant advantages over conventional antibodies. However, experimental studies comparing aptasensors and immunosensors, under equivalent conditions, are limited and the results are inconclusive, in terms of benefits and limitations of each bioreceptor type. In the present work, the performance of aptamer and antibody bioreceptors for the detection of a his-tagged protein, used as a model target, is compared. The bioreceptors are immobilized onto a nanostructured porous silicon (PSi) thin film, used as the optical transducer, and the target protein is detected in a real-time and label-free format by reflective interferometric Fourier transform spectroscopy. For the antibodies, random-oriented immobilization onto the PSi nanostructure results in a poor biosensing performance. Contrary, Fc-oriented immobilization of the antibodies shows a similar biosensing performance to that exhibited by the aptamer-based biosensor, in terms of binding rate, dynamic detection range, limit of detection and selectivity. The aptasensor outperforms in terms of its reusability and storability, while the immunosensor could not be regenerated for subsequent experiments.
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Affiliation(s)
- Sofia Arshavsky-Graham
- Institute of Technical Chemistry, Leibniz University of Hannover, Callinstr. 5, 30167 Hannover, Germany.
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Schneier M, Razdan S, Miller AM, Briceno ME, Barua S. Current technologies to endotoxin detection and removal for biopharmaceutical purification. Biotechnol Bioeng 2020; 117:2588-2609. [PMID: 32333387 DOI: 10.1002/bit.27362] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 12/21/2022]
Abstract
Endotoxins are the major contributors to the pyrogenic response caused by contaminated pharmaceutical products, formulation ingredients, and medical devices. Recombinant biopharmaceutical products are manufactured using living organisms, including Gram-negative bacteria. Upon the death of a Gram-negative bacterium, endotoxins (also known as lipopolysaccharides) in the outer cell membrane are released into the lysate where they can interact with and form bonds with biomolecules, including target therapeutic compounds. Endotoxin contamination of biologic products may also occur through water, raw materials such as excipients, media, additives, sera, equipment, containers closure systems, and expression systems used in manufacturing. The manufacturing process is, therefore, in critical need of methods to reduce and remove endotoxins by monitoring raw materials and in-process intermediates at critical steps, in addition to final drug product release testing. This review paper highlights a discussion on three major topics about endotoxin detection techniques, upstream processes for the production of therapeutic molecules, and downstream processes to eliminate endotoxins during product purification. Finally, we have evaluated the effectiveness of endotoxin removal processes from a perspective of high purity and low cost.
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Affiliation(s)
- Mason Schneier
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
| | - Sidharth Razdan
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
| | - Allison M Miller
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
| | - Maria E Briceno
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
| | - Sutapa Barua
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
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55
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Hebbi V, Kumar D, Rathore AS. Process intensification in peptide manufacturing: Recombinant lethal toxin neutralizing factor (rLTNF) as a case study. Process Biochem 2020. [DOI: 10.1016/j.procbio.2019.10.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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56
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Lee PY, Saraygord-Afshari N, Low TY. The evolution of two-dimensional gel electrophoresis - from proteomics to emerging alternative applications. J Chromatogr A 2020; 1615:460763. [DOI: 10.1016/j.chroma.2019.460763] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/28/2019] [Accepted: 11/30/2019] [Indexed: 01/05/2023]
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57
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Simplification of affinity macroporous monolith microfluidic column synthesis and its ability for protein separation. J Pharm Biomed Anal 2020; 181:113099. [DOI: 10.1016/j.jpba.2020.113099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/03/2020] [Accepted: 01/06/2020] [Indexed: 01/10/2023]
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58
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Bresolin ITL, Bresolin IRAP, Bueno SMA. Evaluation of Iminodiacetic Acid (IDA) as an Ionogenic Group for Adsorption of IgG 1 Monoclonal Antibodies by Membrane Chromatography. Appl Biochem Biotechnol 2019; 191:810-823. [PMID: 31863350 DOI: 10.1007/s12010-019-03217-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/05/2019] [Indexed: 11/29/2022]
Abstract
Iminodiacetic acid (IDA) is one of the chelating ligands most frequently employed in immobilized metal-ion affinity chromatography (IMAC) due to its ability to act as electron-pair donor, forming stable complexes with intermediate and borderline Lewis metal ions (electron acceptor). Thus, IDA can also be employed in ion exchange chromatography to purify positively charged proteins at neutral pH values. This study aimed to evaluate IDA as an ionogenic group (ion exchanger) immobilized on poly (ethylene vinyl alcohol) (PEVA) hollow fiber membranes for immunoglobulin G1 (IgG1) monoclonal antibody (MAb) purification. IDA-PEVA membranes showed considerable promise for MAb purification, since IgG1 was recovered in eluted fractions with traces of contaminants as confirmed by Western blotting and ELISA analysis. Quantification of IgG1 showed that a purity of 94.2% was reached in the elution step. Breakthrough curve and batch adsorption experiments showed that the MAb dynamic binding capacity (DBC) of 3.10 mg g-1 and the maximum adsorption capacity of 70 mg g-1 were of the same order of magnitude as those found in the literature. The results obtained showed that the IDA-PEVA hollow fiber membrane could be a powerful adsorbent for integrating large-scale processes for purification of MAb from cell culture supernatant.
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Affiliation(s)
| | | | - Sônia Maria Alves Bueno
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, 13083-970, Brazil
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59
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Ma S, Li Y, Ma C, Wang Y, Ou J, Ye M. Challenges and Advances in the Fabrication of Monolithic Bioseparation Materials and their Applications in Proteomics Research. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1902023. [PMID: 31502719 DOI: 10.1002/adma.201902023] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 06/29/2019] [Indexed: 06/10/2023]
Abstract
High-performance liquid chromatography integrated with tandem mass spectrometry (HPLC-MS/MS) has become a powerful technique for proteomics research. Its performance heavily depends on the separation efficiency of HPLC, which in turn depends on the chromatographic material. As the "heart" of the HPLC system, the chromatographic material is required to achieve excellent column efficiency and fast analysis. Monolithic materials, fabricated as continuous supports with interconnected skeletal structure and flow-through pores, are regarded as an alternative to particle-packed columns. Such materials are featured with easy preparation, fast mass transfer, high porosity, low back pressure, and miniaturization, and are next-generation separation materials for high-throughput proteins and peptides analysis. Herein, the recent progress regarding the fabrication of various monolithic materials is reviewed. Special emphasis is placed on studies of the fabrication of monolithic capillary columns and their applications in separation of biomolecules by capillary liquid chromatography (cLC). The applications of monolithic materials in the digestion, enrichment, and separation of phosphopeptides and glycopeptides from biological samples are also considered. Finally, advances in comprehensive 2D HPLC separations using monolithic columns are also shown.
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Affiliation(s)
- Shujuan Ma
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
| | - Ya Li
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
| | - Chen Ma
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
| | - Yan Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
| | - Junjie Ou
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mingliang Ye
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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60
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Kreher U, Spiccia L, Hearn MTW. Interactions between an amphipathic di-histidine peptide and a metal affinity chromatographic resin derived from a bis(tacn)butane chelating ligand. J Sep Sci 2019; 42:3631-3639. [PMID: 31651081 DOI: 10.1002/jssc.201900908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/04/2019] [Accepted: 10/04/2019] [Indexed: 11/06/2022]
Abstract
The interactive behavior of an amphipathic peptide with the Cu2+ , Ni2+ , and Zn2+ complexes of 1,4-bis(triazacyclonon-1-yl)butane), bis(tacn)but , immobilized onto Sepharose CL-4B, has been investigated. The effects of incubation time, as well as the incubation buffer pH and ionic strength, have been examined. The binding data have been interrogated using Langmuir, Langmuir-Freundlich, bi-Langmuir, and Temkin isothermal models and Scatchard plots. These results confirm that this amphipathic peptide binds with relatively high capacities to the immobilized Cu2+ - and Ni2+ -1,4-bis(triazacyclonon-1-yl)butane)-Sepharose CL-4B sorbents via at least two discrete sites. However, the corresponding immobilized Zn2+ -sorbent had low binding capacity. Moreover, the magnitude of the binding capacities of these sorbents was dependent on the pH and ionic strength of the incubation buffer. These results are relevant to the isolation of E. coli expressed recombinant proteins that incorporate this and related amphipathic peptide tags, containing two or more histidine residues, located at the N- or C-terminus of the recombinant protein, and the co-purification of low abundance host cell proteins of diverse structure, by immobilized metal ion affinity chromatographic methods.
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Affiliation(s)
- Ute Kreher
- Centre for Green Chemistry, School of Chemistry, Monash University, Clayton, Australia
| | - Leone Spiccia
- Centre for Green Chemistry, School of Chemistry, Monash University, Clayton, Australia
| | - Milton T W Hearn
- Centre for Green Chemistry, School of Chemistry, Monash University, Clayton, Australia
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61
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Purification of Recombinant ADAMTSL2. Methods Mol Biol 2019. [PMID: 31463910 DOI: 10.1007/978-1-4939-9698-8_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Recombinantly produced proteins are used in many biological disciplines. However, their purity and quality are vital for downstream applications used to determine their structure and functions. Several purification and detection strategies can be used in combination to obtain protein samples with homogeneity and structural conformity. Here we detail the protocols involved in the purification of ADAMTSL2 from mammalian cells. We also describe the protocols used to validate the purity of the protein samples.
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62
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Zhao M, Vandersluis M, Stout J, Haupts U, Sanders M, Jacquemart R. Affinity chromatography for vaccines manufacturing: Finally ready for prime time? Vaccine 2019; 37:5491-5503. [DOI: 10.1016/j.vaccine.2018.02.090] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 01/22/2018] [Accepted: 02/22/2018] [Indexed: 01/15/2023]
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63
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Jiang L, Ye L. Nanoparticle-supported temperature responsive polymer brushes for affinity separation of histidine-tagged recombinant proteins. Acta Biomater 2019; 94:447-458. [PMID: 31055124 DOI: 10.1016/j.actbio.2019.04.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 04/25/2019] [Accepted: 04/25/2019] [Indexed: 01/14/2023]
Abstract
We developed a modular approach for the preparation of nanoparticle-supported polymer brushes carrying repeating iminodiacetate units for affinity separation of histidine-tagged recombinant proteins. The nanoparticle-supported polymer brushes were prepared via the combination of surface-initiated atom transfer radical polymerization with Cu(I)-catalyzed azide-alkyne cycloaddition reaction. The nanocomposite materials were characterized to determine the particle size, morphology, organic content, densities of polymer chains and the affinity ligand. Protein binding assay illustrated that the iminodiacetate-rich polymer brushes enable to selectively bind histidine-tagged recombinant proteins in the presence of abundant interfering proteins. More importantly, the protein binding capacity can be tuned by adjusting the environmental temperature. STATEMENT OF SIGNIFICANCE: The nanoparticle core-polymer brush structure enables selective binding of histidine-tagged recombinant proteins via multiple metal-coordination interactions. The soft and flexible structure of the polymer brushes was found beneficial for lowering the steric hindrance in protein binding. Taking advantage of the conformational changes of the polymer brushes at different temperatures, it is possible to modulate the protein binding on the nanocomposite by adjusting the environmental temperature. In general, the iminodiacetate-rich core-brush nano adsorbents are attractive for purifying histidine-tagged recombinant proteins practically. The synthetic approach reported here may be expanded to develop other advanced functional materials for applications in various biomedical fields ranging from biosensors to drug delivery.
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Affiliation(s)
- Lingdong Jiang
- Division of Pure and Applied Biochemistry, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Lei Ye
- Division of Pure and Applied Biochemistry, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden.
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64
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Promiscuity of host cell proteins in the purification of histidine tagged recombinant xylanase A by IMAC procedures: A case study with a Ni 2+-tacn-based IMAC system. Protein Expr Purif 2019; 162:51-61. [PMID: 31170454 DOI: 10.1016/j.pep.2019.05.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 11/23/2022]
Abstract
Determination of the extent of host cell protein (HCP) contamination is an essential pre-requisite to validate the chromatographic purification of recombinant proteins. This study explores how different experimental conditions affect the HCP profiles generated during the immobilised metal ion affinity chromatographic (IMAC) purification with a Ni2+-1,4,7-triaza-cyclononane (tacn) Sepharose FF™ sorbent of the Bacillus halodurans N- and C-terminal His6-tagged xylanase A, expressed by Escherichia coli BL21(DE3) cells, and captured directly from cell lysates. Comparative studies were also carried out under identical loading, wash and elution conditions using nitrilotriacetic acid (NTA), also immobilised onto an agarose support and complexed with Ni2+ ions. High-resolution tandem mass spectrometry of the tryptic peptides derived from the proteins present in the IMAC flow-through, wash and elution fractions confirmed that the E. coli BL21(DE3) HCP profiles were dependent on the choice of adsorbent. With feedstocks containing the N- or C-terminal His6-tagged xylanase A, in several instances the same E. coli BL21(DE3) HCPs were found to co-elute with the tagged protein from either adsorbent, indicating a preferential ability of some HCPs to bind to both the IMAC resin and to the recombinant protein. This promiscuous behaviour has been found to be due to factors other than just the presence of histidine-rich motifs within the amino acid sequences of these HCPs. This case study demonstrates that the choice of protein expression and separation conditions impact on the levels of HCP contamination when different IMAC systems are employed.
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65
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Islam MR, Kwak J, Lee J, Hong S, Khan MRI, Lee Y, Lee Y, Lee S, Hwang I. Cost-effective production of tag-less recombinant protein in Nicotiana benthamiana. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:1094-1105. [PMID: 30468023 PMCID: PMC6523591 DOI: 10.1111/pbi.13040] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 11/02/2018] [Accepted: 11/04/2018] [Indexed: 05/03/2023]
Abstract
Plants have recently received a great deal of attention as a means of producing recombinant proteins. Despite this, a limited number of recombinant proteins are currently on the market and, if plants are to be more widely used, a cost-effective and efficient purification method is urgently needed. Although affinity tags are convenient tools for protein purification, the presence of a tag on the recombinant protein is undesirable for many applications. A cost-effective method of purification using an affinity tag and the removal of the tag after purification has been developed. The family 3 cellulose-binding domain (CBM3), which binds to microcrystalline cellulose, served as the affinity tag and the small ubiquitin-related modifier (SUMO) and SUMO-specific protease were used to remove it. This method, together with size-exclusion chromatography, enabled purification of human interleukin-6 (hIL6) with a yield of 18.49 mg/kg fresh weight from leaf extracts of Nicotiana benthamiana following Agrobacterium-mediated transient expression. Plant-produced hIL6 (P-hIL6) contained less than 0.2 EU/μg (0.02 ng/mL) endotoxin. P-hIL6 activated the Janus kinase-signal transducer and activator of transcriptional pathways in human LNCaP cells, and induced expression of IL-21 in activated mouse CD4+ T cells. This approach is thus a powerful method for producing recombinant proteins in plants.
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Affiliation(s)
- Md Reyazul Islam
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
| | - Ju‐Won Kwak
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
| | - Jeon‐soo Lee
- Department of Life SciencePohang University of Science and TechnologyPohangKorea
| | - Sung‐Wook Hong
- Department of Life SciencePohang University of Science and TechnologyPohangKorea
| | - Md Rezaul Islam Khan
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
| | - Yongjik Lee
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
| | - Yoontae Lee
- Department of Life SciencePohang University of Science and TechnologyPohangKorea
| | - Seung‐Woo Lee
- Department of Life SciencePohang University of Science and TechnologyPohangKorea
| | - Inhwan Hwang
- Division of Integrative Biosciences and BiotechnologyPohang University of Science and TechnologyPohangKorea
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66
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Affiliation(s)
- Duygu Çimen
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey
| | - Nilay Bereli
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey
| | - Adil Denizli
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey
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67
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Kutyshenko VP, Mikoulinskaia GV, Chernyshov SV, Yegorov AY, Prokhorov DA, Uversky VN. Effect of C-terminal His-tag and purification routine on the activity and structure of the metalloenzyme, l-alanyl-d-glutamate peptidase of the bacteriophage T5. Int J Biol Macromol 2019; 124:810-818. [DOI: 10.1016/j.ijbiomac.2018.11.219] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/07/2018] [Accepted: 11/24/2018] [Indexed: 02/01/2023]
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68
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Jose L, Lee C, Hwang A, Park JH, Song JK, Paik HJ. Magnetically steerable Fe3O4@Ni2+-NTA-polystyrene nanoparticles for the immobilization and separation of his6-protein. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.01.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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69
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Leitão ALODS, Caldas MCB, Eduardo de Araújo Padilha C, Nogueira da Costa C, Rocha PM, Canindé de Sousa Junior F, Ribeiro de Macedo G, Silvino dos Santos E. Recovery and purification of 503 antigen from Leishmania i. chagasi with simultaneous removal of lipopolysaccharides: Influence of immobilized metals and elution strategies during expanded bed adsorption (EBA). J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2019.1565829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | | | | | | | - Patrícia Maria Rocha
- Departamento de Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Francisco Canindé de Sousa Junior
- Departamento de Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal, Brazil
- Departamento de Farmácia, Universidade Federal do Rio Grande do Norte, Natal, Brazil
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70
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Li H, Ali Z, Liu X, Jiang L, Tang Y, Dai J. Expression of recombinant tachyplesin I in Pichia pastoris. Protein Expr Purif 2019; 157:50-56. [PMID: 30711625 DOI: 10.1016/j.pep.2019.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/20/2019] [Accepted: 01/30/2019] [Indexed: 11/19/2022]
Abstract
The development of antibiotic-resistant bacteria has become a major public health problem, prompting the search for alternative solutions. Tachyplesin I (TP-I) is an antimicrobial peptide, which exhibits potent and broad-spectrum activities against bacteria, fungi, viruses, and tumor cells. However, limited amounts of TP-I produced in horseshoe crab restrict its large-scale use. In order to solve this problem, a eukaryotic expression system of Pichia pastoris with high TP-I expression was constructed by gene engineering. To achieve high expression of TP-I, 74 amino acid-long peptide (4TP-1) was designed containing 4 copies of TP-I, and specific cleavage sites for pancreatic elastase (-Ala↓ or -Gly↓) and carboxypeptidase A (cleaves C terminal amino acid); these cleavage sites for enzymes were located between the four copies of TP-I. The gene sequence for the designed peptide was synthesized taking into consideration codon preferences for P. pastoris, and cloned into the highly efficient expression vector pGAPZα B. Host Pichia pastoris strain GS115 cells were transfected by the constructed expression vector pGAPZα B-4tp-I by electroporation. Tricine-SDS-PAGE electrophoresis was carried out to detect the expression of target peptides in the fermentation medium. This analysis showed a protein band of 3.3 kDa, identical to that of chemically synthesized TP-I, verifying that successful synthesis and secretion of TP-I by genetically engineered P. pastoris. The concentration of TP-I in the fermentation broth was 27.24-29.53 mg/L. High-resolution mass spectrometry analysis documented that the TP-I monomer had the same molecular weight, 2262.85, as the designed 17-amino acid sequence. The recombinant TP-I peptide displayed different levels of bactericidal activity against Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa, and Staphylococcus aureus. Thus, the present study demonstrated the feasibility of achieving high levels of expression of TP-I in P. pastoris.
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Affiliation(s)
- Hanmei Li
- Shenzhen Key Laboratory of Fermentation, Purification and Analysis, Shenzhen Polytechnic, Shenzhen, 518055, China
| | - Zeeshan Ali
- Shenzhen Key Laboratory of Fermentation, Purification and Analysis, Shenzhen Polytechnic, Shenzhen, 518055, China; School of Medicine, Southeast University, Nanjing, 210009, China
| | - Xiaolong Liu
- Shenzhen Key Laboratory of Fermentation, Purification and Analysis, Shenzhen Polytechnic, Shenzhen, 518055, China
| | - Li Jiang
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Yongjun Tang
- Shenzhen Key Laboratory of Fermentation, Purification and Analysis, Shenzhen Polytechnic, Shenzhen, 518055, China.
| | - Jianguo Dai
- Shenzhen Key Laboratory of Fermentation, Purification and Analysis, Shenzhen Polytechnic, Shenzhen, 518055, China.
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71
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Markwalter C, Kantor AG, Moore CP, Richardson KA, Wright DW. Inorganic Complexes and Metal-Based Nanomaterials for Infectious Disease Diagnostics. Chem Rev 2019; 119:1456-1518. [PMID: 30511833 PMCID: PMC6348445 DOI: 10.1021/acs.chemrev.8b00136] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Indexed: 12/12/2022]
Abstract
Infectious diseases claim millions of lives each year. Robust and accurate diagnostics are essential tools for identifying those who are at risk and in need of treatment in low-resource settings. Inorganic complexes and metal-based nanomaterials continue to drive the development of diagnostic platforms and strategies that enable infectious disease detection in low-resource settings. In this review, we highlight works from the past 20 years in which inorganic chemistry and nanotechnology were implemented in each of the core components that make up a diagnostic test. First, we present how inorganic biomarkers and their properties are leveraged for infectious disease detection. In the following section, we detail metal-based technologies that have been employed for sample preparation and biomarker isolation from sample matrices. We then describe how inorganic- and nanomaterial-based probes have been utilized in point-of-care diagnostics for signal generation. The following section discusses instrumentation for signal readout in resource-limited settings. Next, we highlight the detection of nucleic acids at the point of care as an emerging application of inorganic chemistry. Lastly, we consider the challenges that remain for translation of the aforementioned diagnostic platforms to low-resource settings.
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Affiliation(s)
| | | | | | | | - David W. Wright
- Department of Chemistry, Vanderbilt
University, Nashville, Tennessee 37235, United States
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72
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Pearson AJ, Gallagher ES. Overview of Characterizing Cancer Glycans with Lectin-Based Analytical Methods. Methods Mol Biol 2019; 1928:389-408. [PMID: 30725466 DOI: 10.1007/978-1-4939-9027-6_20] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Glycosylation is a post-translational modification that is often altered in disease development and progression, including cancer. In cancerous patients, the abnormal expression of glycosylation enzymes leads to aberrant glycosylation, which has been linked to malignant tissues. Due to aberrant glycosylation, the presence of specific glycans can be used as biomarkers for identifying the type and stage of cancer. Glycan structures are heterogeneous, with different protein glycoforms having different functional activities. Lectins are an important tool in glycan analysis due to their specificity in binding to unique glycan linkages and monosaccharide units, which allows for the identification of unique glycan structural properties. In this review, we will discuss the use of lectins in microarrays and chromatography for characterizing glycan structures.
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Affiliation(s)
- Amanda J Pearson
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX, USA
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73
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Tovar CN, Odunuga OO. Size of Protein is a Major Factor that Affects Retention on Preparative IMAC Columns. Protein J 2018; 38:76-82. [PMID: 30448899 DOI: 10.1007/s10930-018-9803-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Immobilized metal affinity chromatography (IMAC) is a specific high-capacity technique used in large-scale purification of proteins. IMAC exploits the ability of immobilized metal ions to form coordination bonds with atoms in the side chains of certain amino acids. The technique is generally robust. However, several factors still affect column binding capacity, retention, yield and purity of proteins during IMAC. It was observed that the recovery of 6× histidine, (His)6-tagged proteins from metal affinity columns differ significantly depending on the size of the protein. To test this observation, we determined the effect of protein size, flow-rate, number and position of (His)6 tag on the retention of highly expressing proteins on commercial Ni2+ and Co2+ IMAC columns. All experiments were performed in phosphate buffer to eliminate interference of amine-containing buffers with the binding of the (His)6 tag to the columns. Column retention was determined as the ratio of protein of interest in the supernatant (input) to flow-through (output). Data obtained suggest that regardless of the flow-rate, (His)6 tag position and number, the size of protein is a major factor affecting column retention and therefore recovery during column IMAC purification. Small and medium-sized proteins (~ 50 kDa) have higher column retention than bigger proteins, resulting in higher recovery. These outcomes provide important information to consider when performing IMAC.
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Affiliation(s)
- Carmel N Tovar
- Department of Chemistry and Biochemistry, Stephen F. Austin State University, PO Box 13006, SFA Station, Nacogdoches, TX, 75962, USA
| | - Odutayo O Odunuga
- Department of Chemistry and Biochemistry, Stephen F. Austin State University, PO Box 13006, SFA Station, Nacogdoches, TX, 75962, USA.
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74
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Lai WJ, Lin SC. Hydroxyethyl cellulose-grafted loofa sponge-based metal affinity adsorbents for protein purification and enzyme immobilization. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.08.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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75
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Dual column approach for the purification of zinc finger proteins by immobilized metal affinity chromatography. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.08.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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76
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77
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Application of nickel (II) thermo-responsive affinity polymer to porcine circovirus type 2 (PCV2) cap protein purification and interaction analysis by X-ray photoelectron spectroscopy (XPS). Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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78
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Yu H, Ke H, Chen T, Li X, Tan S, Zhou L, Wang S. Zn2+-loaded cellulose beads stabilized by chitosan and prepared via freeze-drying for removing human testosterone in plasma. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:912-920. [PMID: 29774753 DOI: 10.1080/21691401.2018.1473411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Huibin Yu
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Department of Pharmacy, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Hongqin Ke
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Tu Chen
- Department of Clinical Laboratory, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Xing Li
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Shenglong Tan
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Zhou
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Shenqi Wang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
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79
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Hebbi V, Kathiresan P, Kumar D, Komives C, Rathore AS. Process for production and purification of Lethal Toxin Neutralizing Factor (LTNF) from E. coli and its economic analysis. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (OXFORD, OXFORDSHIRE : 1986) 2018; 93:959-967. [PMID: 30034071 PMCID: PMC6052786 DOI: 10.1002/jctb.5537] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 11/30/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND Purification of peptides offers unique challenges with respect to obtaining the desired process yield and selectivity. Lethal Toxin Neutralizing Factor (LTNF) is a peptide that is known to neutralize snake venom in mice when the peptide is preincubated with the venom prior to intravenous injection. A process for producing highly purified recombinant LTNF has been developed. The process has been modelled in SuperPro designer using laboratory data for a plant capable of producing 10 Kg of purified rLTNF. Economic analysis has been performed for manufacturing 3 ton of purified rLTNF. RESULTS The process developed produces peptide in the form of concatemer that has been specifically designed to accumulate as insoluble inclusion bodies (IB) during expression in E. coli. A cation exchange chromatography step has been developed to capture the rLTNF concatemer at 140 g/L dynamic binding capacity. Further, the purified concatemer is cleaved completely into monomeric rLTNF using alpha-chymotrypsin enzyme. Finally, a reversed phase high performance liquid chromatography has been designed to purify rLTNF with a recovery of more than 90% and purity greater than 98%. The overall process recovery is 78±2% resulting in 3.36 g of purified product per batch. Techno-economic evaluation of the process has been performed to demonstrate its economic feasibility against currently marketed antivenom products. CONCLUSIONS The developed process is able to produce purified rLTNF with 78±2% recovery. The study shows that recombinant technology can be used to produce rLTNF cost effectively and shows potential as a substitute for currently available antivenoms against snakebite.
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Affiliation(s)
- Vishwanath Hebbi
- Department of Chemical Engineering, Indian Institute of Technology, 110016, Hauz Khas, India
| | - P. Kathiresan
- Department of Chemical Engineering, Indian Institute of Technology, 110016, Hauz Khas, India
| | - Devendra Kumar
- Department of Chemical Engineering, Indian Institute of Technology, 110016, Hauz Khas, India
| | - Claire Komives
- Department of Biomedical, Chemical and Materials Engineering, San Jose State University, 951920082 San Jose, USA
| | - Anurag S. Rathore
- Department of Chemical Engineering, Indian Institute of Technology, 110016, Hauz Khas, India
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80
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81
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Chu CC, Silverman SK. Assessing histidine tags for recruiting deoxyribozymes to catalyze peptide and protein modification reactions. Org Biomol Chem 2018; 14:4697-703. [PMID: 27138704 DOI: 10.1039/c6ob00716c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We evaluate the ability of hexahistidine (His6) tags on peptide and protein substrates to recruit deoxyribozymes for modifying those substrates. For two different deoxyribozymes, one that creates tyrosine-RNA nucleopeptides and another that phosphorylates tyrosine side chains, we find substantial improvements in yield, kobs, and Km for peptide substrates due to recruiting by His6/Cu(2+). However, the recruiting benefits of the histidine tag are not observed for larger protein substrates, likely because the tested deoxyribozymes either cannot access the target peptide segments or cannot function when these segments are presented in a structured protein context.
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Affiliation(s)
- Chih-Chi Chu
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA.
| | - Scott K Silverman
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA.
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82
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Zhu Q, Zhuang W, Niu H, Ge L, Villacorta Hernandez B, Wu J, Wang K, Liu D, Chen Y, Zhu C, Ying H. Affinity induced immobilization of adenylate cyclase from the crude cell lysate for ATP conversion. Colloids Surf B Biointerfaces 2018; 164:155-164. [PMID: 29413592 DOI: 10.1016/j.colsurfb.2018.01.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 12/19/2017] [Accepted: 01/19/2018] [Indexed: 11/16/2022]
Abstract
The development of an orientation immobilization technique via affinity between polyhistidine tags and metal ions aims at maintaining biocatalytic activity of the enzymes. In this work, to tackle the issue of the immobilization of adenylate cyclase (AC), a simple and effective approach of synthesizing iminodiacetic acid (IDA)-Ni2+ particles was applied for simultaneously purifying and immobilizing his-tagged AC. We chose agarose particles as carriers, and then decorated them with IDA, leading to the formation of a coordination combination of Ni2+. The porous carriers with a large pore size of 50 nm and a specific surface area of 45.8 m2/g exhibited favorable enzymatic activity and loading capacity. The optimal pH of the immobilized enzyme increased from 8.0 to 9.0 and the optimal temperature increased from 30 °C to 35 °C, compared to the free AC. Moreover, the immobilized AC retained a residual activity of approximately 80% after storing it at 25 °C for 48 h, whereas only 40% of the activity was left in the free AC at the same conditions. Maximum yield of cyclic adenosine-3', 5'- monophosphate (cAMP) reached up to the summit of the reaction. The immobilized AC by affinity adsorption will provide a promising route for the industrial production of cAMP.
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Affiliation(s)
- Qianqian Zhu
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
| | - Wei Zhuang
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5, Xinmofan Road, Nanjing 210009, China; Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China; School of Chemical Engineering, The University of Queensland, St Lucia, Queensland 4072, Australia.
| | - Huanqing Niu
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China; Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
| | - Lei Ge
- Centre for Future Materials, University of Southern Queensland, Springfield, Queensland 4300, Australia
| | | | - Jinglan Wu
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5, Xinmofan Road, Nanjing 210009, China
| | - Kai Wang
- Freshwater Fisheries Research Institute of Jiangsu Province, No. 79 Chating East Street, Nanjing 210017, China
| | - Dong Liu
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5, Xinmofan Road, Nanjing 210009, China
| | - Yong Chen
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5, Xinmofan Road, Nanjing 210009, China; Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
| | - Chenjie Zhu
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5, Xinmofan Road, Nanjing 210009, China; Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
| | - Hanjie Ying
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5, Xinmofan Road, Nanjing 210009, China; Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
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83
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Purification of Histidine-Tagged Membrane-Bound Catechol-O-Methyltransferase from Detergent-Solubilized Pichia pastoris Membranes. Chromatographia 2018. [DOI: 10.1007/s10337-017-3453-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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84
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Li S, Yang K, Liu L, Zhao B, Chen Y, Li X, Zhang L, Zhang Y. Surface sieving coordinated IMAC material for purification of His-tagged proteins. Anal Chim Acta 2018; 997:9-15. [DOI: 10.1016/j.aca.2017.10.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 10/18/2017] [Accepted: 10/22/2017] [Indexed: 10/18/2022]
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85
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Zhang H, Wang W, Li M, Lu Z, Liu K, Wang Y, Wang D. Affinity functionalization of PVA-co-PE nanofibrous membrane with Ni(ii)-chelated ligand for bovine hemoglobin adsorption. NEW J CHEM 2018. [DOI: 10.1039/c8nj00064f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ni(ii)-Chelated PVA-co-PE nanofibrous membrane can be prepared easily and this study provides an exploratory research for the large-scale purification of BHb.
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Affiliation(s)
- Hao Zhang
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
| | - Wenwen Wang
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
| | - Mufang Li
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
| | - Zhentan Lu
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
| | - Ke Liu
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
| | - Yuedan Wang
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
| | - Dong Wang
- School of Materials Science and Engineering
- Wuhan Textile University
- Wuhan 430073
- China
- Hubei Key Laboratory of Advanced Textile Materials & Application
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86
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Carneiro LA, Ward RJ. Functionalization of paramagnetic nanoparticles for protein immobilization and purification. Anal Biochem 2018; 540-541:45-51. [DOI: 10.1016/j.ab.2017.11.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 11/08/2017] [Accepted: 11/13/2017] [Indexed: 12/15/2022]
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87
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Lin H, Deng C. Development of immobilized Sn 4+ affinity chromatography material for highly selective enrichment of phosphopeptides. Proteomics 2017; 16:2733-2741. [PMID: 27650410 DOI: 10.1002/pmic.201600187] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 09/01/2016] [Accepted: 09/16/2016] [Indexed: 01/24/2023]
Abstract
In this work, we first immobilized tin(IV) ion on polydopamine-coated magnetic graphene (magG@PDA) to synthesize Sn4+ -immobilized magG@PDA (magG@PDA-Sn4+ ) and successfully applied the material to highly selective enrichment of phosphopeptides. The material gathered the advantages of large surface area of graphene, superparamagnetism of Fe3 O4 , good hydrophilicity and biocompatibility of polydopamine, and strong interaction between Sn4+ and phosphopeptides. The enrichment performance of magG@PDA-Sn4+ toward phosphopeptides from digested β-casein at different concentrations, with and without added digested BSA was investigated and compared with magG@PDA-Ti4+ . The results showed high selectivity and sensitivity of the Sn4+ -IMAC material toward phosphopeptides, as good as the Ti4+ -IMAC material. Finally, magG@PDA-Sn4+ was applied to the analysis of endogenous phosphopeptides from a real sample, human saliva, with both MALDI-TOF MS and nano-LC-ESI-MS/MS. The results indicated that the as-synthesized Sn4+ -IMAC material not only has good enrichment performance, but also could serve as a supplement to the Ti4+ -IMAC material and expand the phosphopeptide coverage enriched by the single Ti4+ -IMAC material, demonstrating the broad application prospects of magG@PDA-Sn4+ in phosphoproteome research.
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Affiliation(s)
- Haizhu Lin
- Department of Chemistry and Institutes of Biomedical Sciences, Collaborative Innovation Center of Genetics and Development, Fudan University, Shanghai, P. R. China
| | - Chunhui Deng
- Department of Chemistry and Institutes of Biomedical Sciences, Collaborative Innovation Center of Genetics and Development, Fudan University, Shanghai, P. R. China.
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88
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Hu Y, Romão E, Vertommen D, Vincke C, Morales-Yánez F, Gutiérrez C, Liu C, Muyldermans S. Generation of Nanobodies against SlyD and development of tools to eliminate this bacterial contaminant from recombinant proteins. Protein Expr Purif 2017; 137:64-76. [DOI: 10.1016/j.pep.2017.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 06/24/2017] [Accepted: 06/27/2017] [Indexed: 12/26/2022]
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89
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Kupcik R, Rehulka P, Bilkova Z, Sopha H, Macak JM. New Interface for Purification of Proteins: One-Dimensional TiO 2 Nanotubes Decorated by Fe 3O 4 Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:28233-28242. [PMID: 28787115 DOI: 10.1021/acsami.7b08445] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
In this work, a high surface area interface, based on anodic one-dimensional (1D) TiO2 nanotubes homogeneously decorated by Fe3O4 nanoparticles (TiO2NTs@Fe3O4NPs) is reported for the first time for an unprecedented purification of His-tagged recombinant proteins. Excellent purification results were achieved from the model protein mixture, as well as from the whole cell lysate (with His-tagged ubiquitin). Compared to a conventional immobilized-metal affinity chromatography (IMAC) system, specific isolation of selected His-tagged proteins on behalf of other proteins was significantly enhanced on TiO2NTs@Fe3O4NPs interface under optimized binding and elution conditions. The combination of specific isolation properties, magnetic features, biocompatibility, and ease of preparation of this material consisting of two basic metal oxides makes it a suitable candidate for future purification of recombinant proteins in biotechnology. The principally new material bears a large potential to open new pathways for discoveries in nanobiotechnology and nanomedicine.
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Affiliation(s)
- Rudolf Kupcik
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice , Studentska 573, 532 10 Pardubice, Czech Republic
| | - Pavel Rehulka
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice , Studentska 573, 532 10 Pardubice, Czech Republic
| | - Zuzana Bilkova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice , Studentska 573, 532 10 Pardubice, Czech Republic
| | - Hanna Sopha
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice , Nam. Cs. Legii 565, 530 02 Pardubice, Czech Republic
| | - Jan M Macak
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice , Nam. Cs. Legii 565, 530 02 Pardubice, Czech Republic
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91
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Wang Y, Hu L, Xu F, Quan Q, Lai YT, Xia W, Yang Y, Chang YY, Yang X, Chai Z, Wang J, Chu IK, Li H, Sun H. Integrative approach for the analysis of the proteome-wide response to bismuth drugs in Helicobacter pylori. Chem Sci 2017. [PMID: 28626571 PMCID: PMC5471454 DOI: 10.1039/c7sc00766c] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
An integrative metalloproteomic approach to unveil the role of antimicrobial metals in general using bismuth as an example.
Bismuth drugs, despite being clinically used for decades, surprisingly remain in use and effective for the treatment of Helicobacter pylori infection, even for resistant strains when co-administrated with antibiotics. However, the molecular mechanisms underlying the clinically sustained susceptibility of H. pylori to bismuth drugs remain elusive. Herein, we report that integration of in-house metalloproteomics and quantitative proteomics allows comprehensive uncovering of the bismuth-associated proteomes, including 63 bismuth-binding and 119 bismuth-regulated proteins from Helicobacter pylori, with over 60% being annotated with catalytic functions. Through bioinformatics analysis in combination with bioassays, we demonstrated that bismuth drugs disrupted multiple essential pathways in the pathogen, including ROS defence and pH buffering, by binding and functional perturbation of a number of key enzymes. Moreover, we discovered that HpDnaK may serve as a new target of bismuth drugs to inhibit bacterium-host cell adhesion. The integrative approach we report, herein, provides a novel strategy to unveil the molecular mechanisms of antimicrobial metals against pathogens in general. This study sheds light on the design of new types of antimicrobial agents with multiple targets to tackle the current crisis of antimicrobial resistance.
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Affiliation(s)
- Yuchuan Wang
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China . .,School of Chemistry , Sun Yat-sen University , Guangzhou , P. R. China
| | - Ligang Hu
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Feng Xu
- Center for Genome Sciences , The University of Hong Kong , Hong Kong , P. R. China
| | - Quan Quan
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Yau-Tsz Lai
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Wei Xia
- School of Chemistry , Sun Yat-sen University , Guangzhou , P. R. China
| | - Ya Yang
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Yuen-Yan Chang
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Xinming Yang
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Zhifang Chai
- CAS Key Laboratory of Nuclear Analytical Techniques , Institute of High Energy Physics , Chinese Academy of Sciences , Beijing , P. R. China
| | - Junwen Wang
- Center for Genome Sciences , The University of Hong Kong , Hong Kong , P. R. China.,Center for Individualized Medicine , Department of Health Sciences Research , Mayo Clinic , Scottsdale , AZ 85259 , USA.,Department of Biomedical Informatics , Arizona State University , Scottsdale , AZ 85259 , USA
| | - Ivan K Chu
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Hongyan Li
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Hongzhe Sun
- Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China . .,School of Chemistry , Sun Yat-sen University , Guangzhou , P. R. China
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92
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Göktürk I, Perçin I, Denizli A. Catalase purification from rat liver with iron-chelated poly(hydroxyethyl methacrylate-N-methacryloyl-(l)-glutamic acid) cryogel discs. Prep Biochem Biotechnol 2017; 46:602-9. [PMID: 26460882 DOI: 10.1080/10826068.2015.1085400] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this study, iron-chelated poly(hydroxyethyl methacrylate-N-methacryloyl-(l)-glutamic acid) (PHEMAGA/Fe(3+)) cryogel discs were prepared. The PHEMAGA/Fe(3+) cryogel discs were characterized by elemental analysis, scanning electron microscopy, Fourier transform infrared spectroscopy, swelling tests, and surface area measurements. The PHEMAGA/Fe(3+) cryogel discs had large pores ranging from 10 to 100 µm with a swelling degree of 9.36 g H2O/g cryogel. Effects of pH, temperature, initial catalase concentration, and flow rate on adsorption capacity of the PHEMAGA/Fe(3+) cryogel discs were investigated. Maximum catalase adsorption capacity (62.6 mg/g) was obtained at pH 7.0, 25°C, and 3 mg/ml initial catalase concentration. The PHEMAGA/Fe(3+) cryogel discs were also tested for the purification of catalase from rat liver. After tissue homogenization, purification of catalase was performed using the PHEMAGA/Fe(3+) cryogel discs and catalase was obtained with a yield of 54.34 and 16.67 purification fold.
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Affiliation(s)
- Ilgım Göktürk
- a Biochemistry Division, Department of Chemistry , Hacettepe University , Beytepe , Ankara , Turkey.,b Nanotechnology and Nanomedicine Division , Institute of Science, Hacettepe University , Beytepe , Ankara , Turkey
| | - Işık Perçin
- c Molecular Biology Division, Department of Biology , Hacettepe University , Beytepe , Ankara , Turkey
| | - Adil Denizli
- a Biochemistry Division, Department of Chemistry , Hacettepe University , Beytepe , Ankara , Turkey
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93
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Abstract
Efficacy of de novo gene synthesis largely depends on the quality of overlapping oligonucleotides used as template for PCR assembly. The error rate associated with current gene synthesis protocols limits the efficient and accurate production of synthetic genes, both in the small and large scales. Here, we analysed the ability of different endonuclease enzymes, which specifically recognize and cleave DNA mismatches resulting from incorrect impairments between DNA strands, to remove mutations accumulated in synthetic genes. The gfp gene, which encodes the green fluorescent protein, was artificially synthesized using an integrated protocol including an enzymatic mismatch cleavage step (EMC) following gene assembly. Functional and sequence analysis of resulting artificial genes revealed that number of deletions, insertions and substitutions was strongly reduced when T7 endonuclease I was used for mutation removal. This method diminished mutation frequency by eightfold relative to gene synthesis not incorporating an error correction step. Overall, EMC using T7 endonuclease I improved the population of error-free synthetic genes, resulting in an error frequency of 0.43 errors per 1 kb. Taken together, data presented here reveal that incorporation of a mutation-removal step including T7 endonuclease I can effectively improve the fidelity of artificial gene synthesis.
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94
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Facial synthesis of nickel(II)-immobilized carboxyl cotton chelator for purification of histidine-tagged proteins. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1043:122-127. [DOI: 10.1016/j.jchromb.2016.06.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/08/2016] [Accepted: 06/17/2016] [Indexed: 11/21/2022]
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95
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Wong P, Li L, Chea J, Delgado MK, Crow D, Poku E, Szpikowska B, Bowles N, Channappa D, Colcher D, Wong JYC, Shively JE, Yazaki PJ. PET imaging of 64Cu-DOTA-scFv-anti-PSMA lipid nanoparticles (LNPs): Enhanced tumor targeting over anti-PSMA scFv or untargeted LNPs. Nucl Med Biol 2017; 47:62-68. [PMID: 28126683 DOI: 10.1016/j.nucmedbio.2017.01.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 11/24/2016] [Accepted: 01/12/2017] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Single chain (scFv) antibodies are ideal targeting ligands due to their modular structure, high antigen specificity and affinity. These monovalent ligands display rapid tumor targeting but have limitations due to their fast urinary clearance. METHODS An anti-prostate membrane antigen (PSMA) scFv with a site-specific cysteine was expressed and evaluated in a prostate cancer xenograft model by Cu-64 PET imaging. To enhance tumor accumulation, the scFv-cys was conjugated to the co-polymer DSPE-PEG-maleimide that spontaneously assembled into a homogeneous multivalent lipid nanoparticle (LNP). RESULTS The targeted LNP exhibited a 2-fold increase in tumor uptake compared to the scFv alone using two different thiol ester chemistries. The anti-PSMA scFv-LNP exhibited a 1.6 fold increase in tumor targeting over the untargeted LNP. CONCLUSIONS The targeted anti-PSMA scFv-LNP showed enhanced tumor accumulation over the scFv alone or the untargeted DOTA-micelle providing evidence for the development of this system for drug delivery. ADVANCES IN KNOWLEDGE AND IMPLICATIONS FOR PATIENT CARE Anti-tumor scFv antibody fragments have not achieved their therapeutic potential due to their fast blood clearance. Conjugation to an LNP enables multivalency to the tumor antigen as well as increased molecular size for chemotherapy drug delivery.
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Affiliation(s)
- Patty Wong
- Department of Radiation Oncology, City of Hope Medical Center, City of Hope, Duarte, CA, 91010-3000, USA
| | - Lin Li
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - Junie Chea
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - Melissa K Delgado
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - Desiree Crow
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - Erasmus Poku
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - Barbara Szpikowska
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - Nicole Bowles
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - Divya Channappa
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - David Colcher
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - Jeffrey Y C Wong
- Department of Radiation Oncology, City of Hope Medical Center, City of Hope, Duarte, CA, 91010-3000, USA
| | - John E Shively
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA
| | - Paul J Yazaki
- Department of Molecular Immunology, Beckman Research Institute, City of Hope, Duarte, CA, 91010-3000, USA.
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96
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Coolbaugh M, Shakalli Tang M, Wood D. High-throughput purification of recombinant proteins using self-cleaving intein tags. Anal Biochem 2017; 516:65-74. [DOI: 10.1016/j.ab.2016.10.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 10/16/2016] [Accepted: 10/18/2016] [Indexed: 12/13/2022]
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97
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Structure-Based Design and Synthesis of a New Phenylboronic-Modified Affinity Medium for Metalloprotease Purification. Mar Drugs 2016; 15:md15010005. [PMID: 28036010 PMCID: PMC5295225 DOI: 10.3390/md15010005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/19/2016] [Accepted: 12/21/2016] [Indexed: 12/16/2022] Open
Abstract
Metalloproteases are emerging as useful agents in the treatment of many diseases including arthritis, cancer, cardiovascular diseases, and fibrosis. Studies that could shed light on the metalloprotease pharmaceutical applications require the pure enzyme. Here, we reported the structure-based design and synthesis of the affinity medium for the efficient purification of metalloprotease using the 4-aminophenylboronic acid (4-APBA) as affinity ligand, which was coupled with Sepharose 6B via cyanuric chloride as spacer. The molecular docking analysis showed that the boron atom was interacting with the hydroxyl group of Ser176 residue, whereas the hydroxyl group of the boronic moiety is oriented toward Leu175 and His177 residues. In addition to the covalent bond between the boron atom and hydroxyl group of Ser176, the spacer between boronic acid derivatives and medium beads contributes to the formation of an enzyme-medium complex. With this synthesized medium, we developed and optimized a one-step purification procedure and applied it for the affinity purification of metalloproteases from three commercial enzyme products. The native metalloproteases were purified to high homogeneity with more than 95% purity. The novel purification method developed in this work provides new opportunities for scientific, industrial and pharmaceutical projects.
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98
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Arora S, Saxena V, Ayyar BV. Affinity chromatography: A versatile technique for antibody purification. Methods 2016; 116:84-94. [PMID: 28012937 DOI: 10.1016/j.ymeth.2016.12.010] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 12/16/2016] [Accepted: 12/17/2016] [Indexed: 12/19/2022] Open
Abstract
Antibodies continue to be extremely utilized entities in myriad applications including basic research, imaging, targeted delivery, chromatography, diagnostics, and therapeutics. At production stage, antibodies are generally present in complex matrices and most of their intended applications necessitate purification. Antibody purification has always been a major bottleneck in downstream processing of antibodies, due to the need of high quality products and associated high costs. Over the years, extensive research has focused on finding better purification methodologies to overcome this holdup. Among a plethora of different techniques, affinity chromatography is one of the most selective, rapid and easy method for antibody purification. This review aims to provide a detailed overview on affinity chromatography and the components involved in purification. An array of support matrices along with various classes of affinity ligands detailing their underlying working principles, together with the advantages and limitations of each system in purifying different types of antibodies, accompanying recent developments and important practical methodological considerations to optimize purification procedure are discussed.
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Affiliation(s)
- Sushrut Arora
- Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Vikas Saxena
- Center for Vascular and Inflammatory Diseases, School of Medicine, University of Maryland, Baltimore, MD 21201, USA
| | - B Vijayalakshmi Ayyar
- Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA.
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99
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Erol K. The Adsorption of Calmoduline via Nicotinamide Immobilized Poly(HEMA-GMA) Cryogels. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2016. [DOI: 10.18596/jotcsa.287321] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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100
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Merthe DJ, Kresin VV. Electrostatic Deflection of a Molecular Beam of Massive Neutral Particles: Fully Field-Oriented Polar Molecules within Superfluid Nanodroplets. J Phys Chem Lett 2016; 7:4879-4883. [PMID: 27934050 DOI: 10.1021/acs.jpclett.6b02401] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Electric deflection measurements on liquid helium nanodroplets doped with individual polar molecules demonstrate that the cold superfluid matrix enables full orientation of the molecular dipole along the external field. This translates into a deflection force that is increased enormously by comparison with typical deflection experiments, and it becomes possible to measurably deflect neutral doped droplets with masses of tens to hundreds of thousands of Daltons. By using continuous fluxes of fully oriented polar molecules and measuring the deflection of the doped nanodroplet beam, this approach makes it possible to directly determine the dipole moments of internally cryogenically cold molecules. The technique is broadly and generally applicable, including to complex and biological molecules.
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Affiliation(s)
- Daniel J Merthe
- Department of Physics and Astronomy, University of Southern California , Los Angeles, California 90089-0484, United States
| | - Vitaly V Kresin
- Department of Physics and Astronomy, University of Southern California , Los Angeles, California 90089-0484, United States
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