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State of the art in epitope mapping and opportunities in COVID-19. Future Sci OA 2023; 16:FSO832. [PMID: 36897962 PMCID: PMC9987558 DOI: 10.2144/fsoa-2022-0048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 02/15/2023] [Indexed: 03/08/2023] Open
Abstract
The understanding of any disease calls for studying specific biological structures called epitopes. One important tool recently drawing attention and proving efficiency in both diagnosis and vaccine development is epitope mapping. Several techniques have been developed with the urge to provide precise epitope mapping for use in designing sensitive diagnostic tools and developing rpitope-based vaccines (EBVs) as well as therapeutics. In this review, we will discuss the state of the art in epitope mapping with a special emphasis on accomplishments and opportunities in combating COVID-19. These comprise SARS-CoV-2 variant analysis versus the currently available immune-based diagnostic tools and vaccines, immunological profile-based patient stratification, and finally, exploring novel epitope targets for potential prophylactic, therapeutic or diagnostic agents for COVID-19.
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2
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Shin YS, Fomina N, Johnson C, Rocznik T, Ahmad H, Staley RPA, Weller J, Lang C. Toward Rapid and Automated Immunoassays: Using a Localized Electrochemical pH Modulation Platform to Perform a Single-Step Immunoassay. Anal Chem 2022; 94:13171-13180. [PMID: 36099239 DOI: 10.1021/acs.analchem.2c02686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An electrochemical platform for generating and controlling a localized pH microenvironment on demand is proposed by employing a closed-loop control algorithm based on an iridium oxide pH sensor input. We use a combination of solution-borne quinones and galvanostatic excitation on a prepatterned indium tin oxide (ITO) working electrode to modulate pH within a very well confined, small volume of solution close to the electrode surface. We demonstrate that the rate of pH change can be controlled at up to 2 pH s-1 with an excellent repeatability (±0.004). The desired pH microenvironment can be stably maintained for longer than 2 h within ±0.0012 pH. As a high-impact application of the platform technology, we propose a single-step immunoassay and demonstrate its utility in measuring C-reactive protein (CRP), a critical inflammatory marker in various conditions such as myocardial infarction and even SARS-Cov-2. Utilizing pH modulation technology along with pH-sensitive fluorescence dye simplifies the immunoassay process into a single-step, where a mixture of all of the reagents is incubated only for 1 h without any washing steps or the need to change solution. This simplified immunoassay process minimizes the hands-on time of the end-user and thus decreases technician-driven errors. Moreover, the absence of complicated liquid-handling hardware makes it more suitable and attractive for an ultracompact platform to ultimately be used in a point-of-care diagnostic assay.
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Affiliation(s)
- Young Shik Shin
- Robert Bosch LLC, Research & Technology Center North America, 384 Santa Trinita Avenue, Sunnyvale, California 94085, United States
| | - Nadezda Fomina
- Robert Bosch LLC, Research & Technology Center North America, 384 Santa Trinita Avenue, Sunnyvale, California 94085, United States
| | - Christopher Johnson
- Robert Bosch LLC, Research & Technology Center North America, 384 Santa Trinita Avenue, Sunnyvale, California 94085, United States
| | - Thomas Rocznik
- Robert Bosch LLC, Research & Technology Center North America, 384 Santa Trinita Avenue, Sunnyvale, California 94085, United States
| | - Habib Ahmad
- Robert Bosch LLC, Research & Technology Center North America, 384 Santa Trinita Avenue, Sunnyvale, California 94085, United States
| | - Rachel Patricia-Andrea Staley
- Robert Bosch LLC, Research & Technology Center North America, 384 Santa Trinita Avenue, Sunnyvale, California 94085, United States
| | - Juliane Weller
- Robert Bosch LLC, Research & Technology Center North America, 384 Santa Trinita Avenue, Sunnyvale, California 94085, United States
| | - Christoph Lang
- Robert Bosch LLC, Research & Technology Center North America, 384 Santa Trinita Avenue, Sunnyvale, California 94085, United States
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3
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Woo H, Kang SH, Kwon Y, Choi Y, Kim J, Ha DH, Tanaka M, Okochi M, Kim JS, Kim HK, Choi J. Sensitive and specific capture of polystyrene and polypropylene microplastics using engineered peptide biosensors. RSC Adv 2022; 12:7680-7688. [PMID: 35424716 PMCID: PMC8982333 DOI: 10.1039/d1ra08701k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/19/2022] [Indexed: 12/17/2022] Open
Abstract
Owing to increased environmental pollution, active research regarding microplastics circulating in the ocean has attracted significant interest in recent times. Microplastics accumulate in the bodies of living organisms and adversely affect them. In this study, a new method for the rapid detection of microplastics using peptides was proposed. Among the various types of plastics distributed in the ocean, polystyrene and polypropylene were selected. The binding affinity of the hydrophobic peptides suitable for each type of plastic was evaluated. The binding affinities of peptides were confirmed in unoxidized plastics and plasma-oxidized plastics in deionised or 3.5% saline water. Also, the detection of microplastics in small animals' intestine extracts were possible with the reported peptide biosensors. We expect plastic-binding peptides to be used in sensors to increase the detection efficiency of microplastics and potentially help separate microplastics from seawater.
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Affiliation(s)
- Hyunjeong Woo
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Seung Hyun Kang
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital Seoul 06973 Republic of Korea
| | - Yejin Kwon
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Jiwon Kim
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Don-Hyung Ha
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
| | - Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology 2-12-1-S1-24, O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Mina Okochi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology 2-12-1-S1-24, O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Jin Su Kim
- Division of RI Application, Korea Institute Radiological and Medical Sciences Seoul 01812 Republic of Korea.,Radiological and Medico-Oncological Sciences, University of Science and Technology (UST) Seoul 01812 Republic of Korea
| | - Han Koo Kim
- Department of Plastic and Reconstructive Surgery, Chung-Ang University Hospital Seoul 06973 Republic of Korea
| | - Jonghoon Choi
- School of Integrative Engineering, Chung-Ang University Seoul 06974 Republic of Korea
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4
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Zhan Z, Zhang H, Niu X, Yu X, Sun H, Sha X, Zhao Y, Wang Y, Li WJ. Microliter Sample Insulin Detection Using a Screen-Printed Electrode Modified by Nickel Hydroxide. ACS OMEGA 2020; 5:6169-6176. [PMID: 32226901 PMCID: PMC7098017 DOI: 10.1021/acsomega.0c00194] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/28/2020] [Indexed: 05/03/2023]
Abstract
The monitoring of insulin, which is the only hormone that helps regulate blood glucose levels in the body, plays a key role in the diagnosis and treatment of diabetes. However, most techniques today involve complicated electrode fabrication and testing processes, which are time-consuming and costly, and require a relatively large volume of sample. To overcome these drawbacks, we present here a low-cost insulin detection method based on a screen-printed electrode (SPE) modified by nickel hydroxide (Ni(OH)2). This novel method only requires 300 μL of insulin sample, and the time it takes for electrode preparation is about 12 times shorter than traditional electrode fabrication methods such as coating and sol-gel methods. The electrochemical behaviors of the Ni(OH)2-coated SPE (NSPE) sensing area in insulin aqueous solutions are studied using cyclic voltammetry, amperometric i-t curves, and electrochemical impedance spectroscopy. The results demonstrate that the NSPE sensing surface has excellent detection properties, such as a high sensitivity of 15.3 μA·μM-1 and a low detection limit of 138 nM. It takes a short time (∼10 min) to prepare the NSPE sensing surface, and only two drops (∼300 μL) of insulin samples are required in the detection process. Moreover, the selectivity of this method for insulin detection is verified by detecting mixtures of insulin and ascorbic acid or bovine hemoglobin. Finally, we discuss the potential clinical applications of this method by detecting various concentrations of insulin in human serum.
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Affiliation(s)
- Zhikun Zhan
- Key
Laboratory of Intelligent Rehabilitation and Neromodulation of Hebei
Province, Yanshan University at Qinhuangdao, Qinhuangdao 066004, China
| | - Hongyu Zhang
- Key
Laboratory of Intelligent Rehabilitation and Neromodulation of Hebei
Province, Yanshan University at Qinhuangdao, Qinhuangdao 066004, China
| | - Xuanyu Niu
- School
of Control Engineering, Northeastern University
at Qinhuangdao, Qinhuangdao 066004, China
| | - Xiaodong Yu
- School
of Control Engineering, Northeastern University
at Qinhuangdao, Qinhuangdao 066004, China
| | - Hui Sun
- School
of Control Engineering, Northeastern University
at Qinhuangdao, Qinhuangdao 066004, China
| | - Xiaopeng Sha
- School
of Control Engineering, Northeastern University
at Qinhuangdao, Qinhuangdao 066004, China
| | - Yuliang Zhao
- School
of Control Engineering, Northeastern University
at Qinhuangdao, Qinhuangdao 066004, China
- E-mail: (Y.Z.)
| | - Ying Wang
- School
of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
- Beijing
Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Wen Jung Li
- Department
of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- E-mail: (W.J.L.)
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Khan MS, Ameer H, Ali A, Manzoor R, Yang L, Feng R, Jiang N, Wei Q. Electrochemiluminescence behaviour of silver/silver orthophosphate/graphene oxide quenched by Pd@Au core-shell nanoflowers for ultrasensitive detection of insulin. Biosens Bioelectron 2020; 147:111767. [DOI: 10.1016/j.bios.2019.111767] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/24/2019] [Accepted: 10/07/2019] [Indexed: 12/21/2022]
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6
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A novel fluorescent sensing platform for insulin detection based on competitive recognition of cationic pillar[6]arene. Talanta 2019; 197:130-137. [DOI: 10.1016/j.talanta.2019.01.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/24/2018] [Accepted: 01/02/2019] [Indexed: 01/07/2023]
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7
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Zhao Y, Xu Y, Zhang M, Xiang J, Deng C, Wu H. An electrochemical dual-signaling aptasensor for the ultrasensitive detection of insulin. Anal Biochem 2019; 573:30-36. [PMID: 30862445 DOI: 10.1016/j.ab.2019.02.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/28/2019] [Accepted: 02/28/2019] [Indexed: 01/06/2023]
Abstract
Insulin plays a central role in physiological glycolmetabolism and is associated with diabetes and related diseases. In this work, a dual-signaling electrochemical aptasensor for insulin detection with high sensitivity and specificity has been reported. Methylene blue (MB)-modified insulin-binding aptamer (IBA) as "signal-off" probe, and (DNA2)/Ferrocene (Fc) co-modified gold nanoparticles (DNA2Fc@GNPs) as the "signal-on" probe were integrated with linker mDNA to fabricate the DNA2Fc@GNPs/mDNA/MB-IBA modified Au electrode as the sensing interface, and the current responses of MB and Fc were used as signal indicators. As expected, the incubation of insulin with DNA2Fc@GNPs/mDNA/MB-IBA/Au electrode resulted in the current responses of MB and Fc decreased and increased, respectively. Based on this strategy, the detection of insulin was successfully achieved, and a linear range from 10 pM to 10 nM with the detectable lowest concentration of 0.1 pM was obtained. By measuring the insulin concentrations in serum samples, this proposed aptasensor has been proven to be of high specificity and accuracy. Moreover, the dual-signaling is useful for the more accurate and reproducible detection through their self-referencing capability. This aptasensor possesses such advantages as simplicity, rapid responses, high sensitivity, specificity and accuracy, which is significant for improving the diagnosis of insulin-related diseases.
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Affiliation(s)
- Yana Zhao
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China
| | - Youyou Xu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China
| | - Manman Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China
| | - Juan Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China
| | - Chunyan Deng
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China.
| | - Huiyun Wu
- Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, 100850, PR China.
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8
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Abstract
Good glucose management through an insulin dose regime based on the metabolism of glucose helps millions of people worldwide manage their diabetes. Since Banting and Best extracted insulin, glucose management has improved due to the introduction of insulin analogues that act from 30 minutes to 28 days, improved insulin dose regimes, and portable glucose meters, with a current focus on alternative sampling sites that are less invasive. However, a piece of the puzzle is still missing-the ability to measure insulin directly in a Point-of-Care device. The ability to measure both glucose and insulin concurrently will enable better glucose control by providing an improved estimate for insulin sensitivity, minimizing variability in control, and maximizing safety from hypoglycaemia. However, direct detection of free insulin has provided a challenge due to the size of the molecule, the low concentration of insulin in blood, and the selectivity against interferants in blood. This review summarizes current insulin detection methods from immunoassays to analytical chemistry, and sensors. We also discuss the challenges and potential of each of the methods towards Point-of-Care insulin detection.
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9
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Zinc-doping enhanced cadmium sulfide electrochemiluminescence behavior based on Au-Cu alloy nanocrystals quenching for insulin detection. Biosens Bioelectron 2017; 97:115-121. [DOI: 10.1016/j.bios.2017.05.046] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 05/08/2017] [Accepted: 05/26/2017] [Indexed: 01/29/2023]
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10
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Zil’berg RA, Yarkaeva YA, Maksyutova EI, Sidel’nikov AV, Maistrenko VN. Voltammetric identification of insulin and its analogues using glassy carbon electrodes modified with polyarylenephthalides. JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1134/s1061934817040177] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Fluorescence Immunosensing of Insulin via Protein Functionalized Gold Nanoclusters. J Fluoresc 2017; 27:1541-1546. [PMID: 28401408 DOI: 10.1007/s10895-017-2093-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/04/2017] [Indexed: 10/19/2022]
Abstract
A novel fluorescent immunosensor for the determination of insulin, an important peptide hormone, has been fabricated in homogeneous solution. Bovine serum albumin (BSA) capped gold nanoclusters (AuNCs), being highly biocompatible, were used to label the insulin antibody (Ab). In presence of the target antigen, insulin (Ag), specific immunoreaction between Ab and Ag takes place leading to the fluorescence recovery of AuNCs that provided signal readout for the immunosensing process. A linear relationship between the fluorescence signal and concentration of insulin was obtained in the range of 4.9 × 10-9 g/mL to 3.8 × 10-8 g/mL, with a detection limit of 1.1 × 10-10 g/mL. Furthermore, application of the present approach in human insulin injection and synthetic blood serum has been demonstrated, thus promising an efficient platform for clinical diagnostics.
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12
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Shen M, Rusling J, Dixit CK. Site-selective orientated immobilization of antibodies and conjugates for immunodiagnostics development. Methods 2017; 116:95-111. [PMID: 27876681 PMCID: PMC5374010 DOI: 10.1016/j.ymeth.2016.11.010] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/16/2016] [Accepted: 11/17/2016] [Indexed: 01/11/2023] Open
Abstract
Immobilized antibody systems are the key to develop efficient diagnostics and separations tools. In the last decade, developments in the field of biomolecular engineering and crosslinker chemistry have greatly influenced the development of this field. With all these new approaches at our disposal, several new immobilization methods have been created to address the main challenges associated with immobilized antibodies. Few of these challenges that we have discussed in this review are mainly associated to the site-specific immobilization, appropriate orientation, and activity retention. We have discussed the effect of antibody immobilization approaches on the parameters on the performance of an immunoassay.
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Affiliation(s)
- Min Shen
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060
| | - James Rusling
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060
- Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136
- Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut 060
- School of Chemistry, National University of Ireland at Galway, Galway, Ireland
| | - Chandra K Dixit
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060
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13
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Yu Y, Guo M, Yuan M, Liu W, Hu J. Nickel nanoparticle-modified electrode for ultra-sensitive electrochemical detection of insulin. Biosens Bioelectron 2016; 77:215-9. [DOI: 10.1016/j.bios.2015.09.036] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 09/14/2015] [Accepted: 09/15/2015] [Indexed: 11/28/2022]
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14
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Imanaka H, Yamadzumi D, Yanagita K, Ishida N, Nakanishi K, Imamura K. The use of a proteinaceous "cushion" with a polystyrene-binding peptide tag to control the orientation and function of a target peptide adsorbed to a hydrophilic polystyrene surface. Biotechnol Prog 2016; 32:527-34. [PMID: 26801516 DOI: 10.1002/btpr.2232] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 12/15/2015] [Indexed: 11/08/2022]
Abstract
In immobilizing target biomolecules on a solid surface, it is essential (i) to orient the target moiety in a preferred direction and (ii) to avoid unwanted interactions of the target moiety including with the solid surface. The preferred orientation of the target moiety can be achieved by genetic conjugation of an affinity peptide tag specific to the immobilization surface. Herein, we report on a strategy for reducing the extent of direct interaction between the target moiety and surface in the immobilization of hexahistidine peptide (6His) and green fluorescent protein (GFP) on a hydrophilic polystyrene (PS) surface: Ribonuclease HII from Thermococcus kodakaraensis (cHII) was genetically inserted as a "cushion" between the PS-affinity peptide tag and target moiety. The insertion of a cushion protein resulted in a considerably stronger immobilization of target biomolecules compared to conjugation with only a PS affinity peptide tag, resulting in a substantially enhanced accessibility of the detection antibody to the target 6His peptide. The fluorescent intensity of the GFP moiety was decreased by approximately 30% as the result of fusion with cHII and the PS-affinity peptide tag but was fully retained in the immobilization on the PS surface irrespective of the increased binding force. Furthermore, the fusion of cHII did not impair the stability of the target GFP moiety. Accordingly, the use of a proteinaceous cushion appears to be promising for the immobilization of functional biomolecules on a solid surface. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:527-534, 2016.
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Affiliation(s)
- Hiroyuki Imanaka
- Div. of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-Naka, Kita-Ku, Okayama, 700-8530, Japan
| | - Daisuke Yamadzumi
- Div. of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-Naka, Kita-Ku, Okayama, 700-8530, Japan
| | - Keisuke Yanagita
- Div. of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-Naka, Kita-Ku, Okayama, 700-8530, Japan
| | - Naoyuki Ishida
- Div. of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-Naka, Kita-Ku, Okayama, 700-8530, Japan
| | - Kazuhiro Nakanishi
- Div. of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-Naka, Kita-Ku, Okayama, 700-8530, Japan
| | - Koreyoshi Imamura
- Div. of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-Naka, Kita-Ku, Okayama, 700-8530, Japan
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15
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Ahmad TA, Eweida AE, Sheweita SA. B-cell epitope mapping for the design of vaccines and effective diagnostics. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.trivac.2016.04.003] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Liu Y, Yu J. Oriented immobilization of proteins on solid supports for use in biosensors and biochips: a review. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1623-4] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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17
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Wang C, Feng B. Research progress on site-oriented and three-dimensional immobilization of protein. Mol Biol 2015. [DOI: 10.1134/s0026893315010173] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Kumada Y. Site-specific immobilization of recombinant antibody fragments through material-binding peptides for the sensitive detection of antigens in enzyme immunoassays. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2014; 1844:1960-1969. [PMID: 25119345 DOI: 10.1016/j.bbapap.2014.07.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Revised: 07/05/2014] [Accepted: 07/11/2014] [Indexed: 12/26/2022]
Abstract
The immobilization of an antibody is one of the key technologies that are used to enhance the sensitivity and efficiency of the detection of target molecules in immunodiagnosis and immunoseparation. Recombinant antibody fragments such as VHH, scFv and Fabs produced by microorganisms are the next generation of ligand antibodies as an alternative to conventional whole Abs due to a smaller size and the possibility of site-directed immobilization with uniform orientation and higher antigen-binding activity in the adsorptive state. For the achievement of site-directed immobilization, affinity peptides for a certain ligand molecule or solid support must be introduced to the recombinant antibody fragments. In this mini-review, immobilization technologies for the whole antibodies (whole Abs) and recombinant antibody fragments onto the surfaces of plastics are introduced. In particular, the focus here is on immobilization technologies of recombinant antibody fragments utilizing affinity peptide tags, which possesses strong binding affinity towards the ligand molecules. Furthermore, I introduced the material-binding peptides that are capable of direct recognition of the target materials. Preparation and immobilization strategies for recombinant antibody fragments linked to material-binding peptides (polystyrene-binding peptides (PS-tags) and poly (methyl methacrylate)-binding peptide (PMMA-tag)) are the focus here, and are based on the enhancement of sensitivity and a reduction in the production costs of ligand antibodies. This article is part of a Special Issue entitled: Recent advances in molecular engineering of antibody.
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Affiliation(s)
- Yoichi Kumada
- Department of Biomolecular Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
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19
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Tiwari MP, Prasad BB. An insulin monitoring device based on hyphenation between molecularly imprinted micro-solid phase extraction and complementary molecularly imprinted polymer-sensor. J Chromatogr A 2014; 1337:22-31. [DOI: 10.1016/j.chroma.2014.02.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 02/08/2014] [Accepted: 02/14/2014] [Indexed: 12/11/2022]
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Wakayama H, Henares TG, Jigawa K, Funano SI, Sueyoshi K, Endo T, Hisamoto H. Design of a single-step immunoassay principle based on the combination of an enzyme-labeled antibody release coating and a hydrogel copolymerized with a fluorescent enzyme substrate in a microfluidic capillary device. LAB ON A CHIP 2013; 13:4304-4307. [PMID: 24064761 DOI: 10.1039/c3lc50775k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A combination of an enzyme-labeled antibody release coating and a novel fluorescent enzyme substrate-copolymerized hydrogel in a microchannel for a single-step, no-wash microfluidic immunoassay is demonstrated. This hydrogel discriminates the free enzyme-conjugated antibody from an antigen-enzyme-conjugated antibody immunocomplex based on the difference in molecular size. A selective and sensitive immunoassay, with 10-1000 ng mL(-1) linear range, is reported.
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Affiliation(s)
- Hideki Wakayama
- Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai City, Osaka 599-8531, Japan.
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Rafiee B, Fakhari AR. Electrocatalytic oxidation and determination of insulin at nickel oxide nanoparticles-multiwalled carbon nanotube modified screen printed electrode. Biosens Bioelectron 2013; 46:130-5. [DOI: 10.1016/j.bios.2013.01.037] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 01/16/2013] [Accepted: 01/21/2013] [Indexed: 10/27/2022]
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22
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Improved lectin ELISA for glycosylation analysis of biomarkers using PS-tag-fused single-chain Fv. J Immunol Methods 2012; 385:15-22. [DOI: 10.1016/j.jim.2012.07.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2012] [Revised: 07/25/2012] [Accepted: 07/25/2012] [Indexed: 11/21/2022]
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Increased affinity and solubility of peptides used for direct peptide ELISA on polystyrene surfaces through fusion with a polystyrene-binding peptide tag. Biotechniques 2012; 52:95-102. [PMID: 22313407 DOI: 10.2144/000113810] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Accepted: 12/19/2011] [Indexed: 11/23/2022] Open
Abstract
Peptide reagents can serve as alternatives or replacements to antibodies in sensing or diagnostic applications. The passive adsorption of peptides onto polystyrene surfaces can limit the target binding capability, especially for short, positively charged, or hydrophobic sequences. In this report, we show that fusing a peptide with a previously characterized 12-amino acid polystyrene binding sequence (PS-tag) improves overall peptide solubility and enzyme-linked immunosorbent assay (ELISA) results using the peptide as a capture agent. Specific improvements for protective antigen (PA; Bacillus anthracis) protein binding peptides selected from bacterial surface display were compared with native or biotinylated peptides. The PS-tag was added to either peptide terminus, using a (Gly)(4) spacer, and comparable binding affinities were obtained. Fusion with the PS-tag did not have any negative impact on peptide secondary structure as measured by circular dichroism. The addition of the PS-tag provides a convenient method to utilize peptide reagents from peptide display libraries as capture agents in an ELISA format without the need for a biotin tag or concerns about passive adsorption of critical residues for target capture.
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TSUTSUMI E, HENARES TG, FUNANO SI, KAWAMURA K, ENDO T, HISAMOTO H. Single-Step Sandwich Immunoreaction in a Square Glass Capillary Immobilizing Capture and Enzyme-linked Antibodies for Simplified Enzyme-linked Immunosorbent Assay. ANAL SCI 2012; 28:51-6. [DOI: 10.2116/analsci.28.51] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Erina TSUTSUMI
- Graduate School of Engineering, Osaka Prefecture University
| | | | | | - Kunio KAWAMURA
- Graduate School of Engineering, Osaka Prefecture University
| | - Tatsuro ENDO
- Graduate School of Engineering, Osaka Prefecture University
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Kumada Y, Takase Y, Sasaki E, Kishimoto M. High-throughput, high-level production of PS-tag-fused single-chain Fvs by microplate-based culture. J Biosci Bioeng 2011; 111:569-73. [DOI: 10.1016/j.jbiosc.2011.01.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Revised: 12/29/2010] [Accepted: 01/09/2011] [Indexed: 11/24/2022]
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26
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Preparation of scFv-immobilized quartz crystal microbalance sensor by PS-tag-mediated solid-phase refolding. J Biosci Bioeng 2011; 111:459-64. [DOI: 10.1016/j.jbiosc.2010.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 11/05/2010] [Accepted: 12/01/2010] [Indexed: 11/21/2022]
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27
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Imprinting molecular recognition sites on multiwalled carbon nanotubes surface for electrochemical detection of insulin in real samples. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.09.008] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Feng B, Luo Y, Ge F, Wang L, Huang L, Dai Y. Site-oriented immobilization of fusion antigen directed by an affinity ligand, and its validation in an immunoassay. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3712] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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29
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Novel solid-phase refolding method for preparation of scFv-immobilized polystyrene plates with high-antigen-binding activity. Anal Bioanal Chem 2010; 398:1295-303. [DOI: 10.1007/s00216-010-4035-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2010] [Revised: 07/12/2010] [Accepted: 07/13/2010] [Indexed: 10/19/2022]
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30
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Kumada Y, Kuroki D, Yasui H, Ohse T, Kishimoto M. Characterization of polystyrene-binding peptides (PS-tags) for site-specific immobilization of proteins. J Biosci Bioeng 2009; 109:583-7. [PMID: 20471598 DOI: 10.1016/j.jbiosc.2009.11.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Revised: 11/10/2009] [Accepted: 11/10/2009] [Indexed: 11/30/2022]
Abstract
In this study, we characterized polystyrene-binding peptides (PS-tags) that possess a specific binding affinity for hydrophilic polystyrene (phi-PS) plates. Both the FITC-labeled PS19-1 (RAFIASRRIKRP) and PS19-6 (RIIIRRIRR) peptides showed strong binding affinity for commercially available hydrophilic, but not hydrophobic, PS plates in the presence of the non-ionic surfactant Tween 20. The dissociation constants (K(d)) of the PS19-1 and PS19-6 peptides for the hydrophilic PS-A plate were 169 and 86 nM, respectively, and the K(d) of both peptides increased with the concentration of NaCl or urea. Based on adsorption yield and residual activity of glutathione S-transferase (GST) after fusion with the PS19-6 peptide or its variants, it was found that the basic amino acid in the PS-tags, i.e., Arg was essential for the strong binding affinity of PS-tags in both the peptide and peptide-fused protein forms The aliphatic amino acids in PS19-6 and PS19-6L, such as Ile or Leu, were also effective. Thus, a series of PS-tags that possess this unusual feature, especially the peptides PS19-6 (RIIIRRIRR) and PS19-6L (RLLLRRLRR), are potential candidate affinity peptide tags for site-specific immobilization of proteins onto hydrophilic PS plates, which show potential as solid supports for protein-based biochips.
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Affiliation(s)
- Yoichi Kumada
- Department of Chemistry and Materials Technology, Kyoto Institute of Technology, 1, Hashigami-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
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31
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Kumada Y, Hamasaki K, Shiritani Y, Nakagawa A, Kuroki D, Ohse T, Choi DH, Katakura Y, Kishimoto M. Direct immobilization of functional single-chain variable fragment antibodies (scFvs) onto a polystyrene plate by genetic fusion of a polystyrene-binding peptide (PS-tag). Anal Bioanal Chem 2009; 395:759-65. [PMID: 19680637 DOI: 10.1007/s00216-009-2999-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2009] [Revised: 07/17/2009] [Accepted: 07/20/2009] [Indexed: 11/30/2022]
Abstract
Single-chain Fv antibodies (scFv) genetically fused with polystyrene-binding peptides (PS-tags, (PS19-1; RAFIASRRIRRP, PS19-6; RIIIRRIRR)) were generated by recombinant Escherichia coli for direct and site-specific immobilization of scFv on polystyrene supports with high antigen-binding activity. PS-tag-fused scFvs (scFv-PS-tags) specific for human C-reactive protein (CRP) were successfully over-expressed as an inclusion body and were refolded using the batch-dilution method. When scFv-PS-tags were immobilized on a hydrophilic PS (phi-PS) plate in the presence of Tween 20, they showed high antigen-binding activity comparable to, or greater than, that of a whole monoclonal antibody (mAb) on a hydrophobic PS (pho-PS) plate, which has been the exclusive method for enzyme-linked immunosorbent assay (ELISA). Furthermore, when a scFv-PS-tag was used as a ligand antibody in one- and two-step ELISA, the assay time was reduced without loss of sensitivity. These results indicate that strong and specific attachment of PS-tags onto the phi-PS surface prevented scFv conformational changes and consequently, the high antigen-binding activities of scFvs were preserved. Nearly identical results were obtained by use of PS-tag-fused scFvs with different VH/VL pairs. Therefore, a variety of scFvs could be functionalized onto phi-PS plates by genetic fusion of PS-tags. ScFv-PS-tags, which possess high antigen-binding activity on the phi-PS plate, are more useful ligand antibodies than whole mAbs. Thus, scFv-PS-tags are applicable in both clinical diagnosis and proteomic research.
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Affiliation(s)
- Yoichi Kumada
- Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Kyoto, 606-8585, Japan.
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32
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Kumada Y, Shiritani Y, Hamasaki K, Ohse T, Kishimoto M. High biological activity of a recombinant protein immobilized onto polystyrene. Biotechnol J 2009; 4:1178-89. [DOI: 10.1002/biot.200800192] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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33
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Kumada Y, Hamasaki K, Shiritani Y, Ohse T, Kishimoto M. Efficient immobilization of a ligand antibody with high antigen-binding activity by use of a polystyrene-binding peptide and an intelligent microtiter plate. J Biotechnol 2009; 142:135-41. [DOI: 10.1016/j.jbiotec.2009.03.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2008] [Revised: 03/12/2009] [Accepted: 03/18/2009] [Indexed: 10/21/2022]
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34
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Rich RL, Myszka DG. Survey of the year 2007 commercial optical biosensor literature. J Mol Recognit 2008; 21:355-400. [DOI: 10.1002/jmr.928] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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35
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Kivlehan F, Lanyon YH, Arrigan DWM. Electrochemical study of insulin at the polarized liquid-liquid interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:9876-82. [PMID: 18666786 DOI: 10.1021/la800842f] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
This paper reports on the electrochemical behavior of bovine insulin at the interface between two immiscible electrolyte solutions (ITIES). The voltammetric ion-transfer response obtained in the presence of insulin was dependent on the aqueous phase pH conditions and on the nature of the organic phase electrolyte employed in experiments. Optimal detection was obtained at acidic pH below the isoelectric point of insulin where it was positively charged. A shift in transfer potentials to lower potential values was observed with decreasing hydrophobicity of the anion of the organic phase electrolyte. No ion-transfer response was observed at pH values of the aqueous phase above the isoelectric point, where insulin was negatively charged. These results suggest that the voltammetric response is due to ion-pairing interactions at the ITIES between positively charged insulin and the hydrophobic anion of the organic phase electrolyte, together with adsorption of the ion-pair at the interface. The voltammetric response was obtained for insulin at concentrations down to 1 muM. These results show that electrochemistry is useful in studying the behavior of this important protein molecule at the polarized water-1,2-DCE interface and provides an alternative detection mode for bioanalytical applications.
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Affiliation(s)
- Francine Kivlehan
- Tyndall National Institute, Lee Maltings, University College, Cork, Ireland
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Mersich C, Jungbauer A. Generation of bioactive peptides by biological libraries. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 861:160-70. [PMID: 17644452 DOI: 10.1016/j.jchromb.2007.06.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2007] [Revised: 06/13/2007] [Accepted: 06/23/2007] [Indexed: 11/19/2022]
Abstract
Biological libraries are powerful tools for discovery of new ligands as well as for identification of cellular interaction partners. Since the first development of the first biological libraries in form of phage displays, numerous biological libraries have been developed. For the development of new ligands, the usage of synthetic oligonucleotides is the method of choice. Generation of random oligonucleotides has been refined and various strategies for random oligonucleotide design were developed. We trace the progress and design of new strategies for the generation of random oligonucleotides, and include a look at arising diversity biases. On the other hand, genomic libraries are widely employed for investigation of cellular protein-protein interactions and targeted search of proteomic binding partners. Expression of random peptides and proteins in a linear form or integrated in a scaffold can be facilitated both in vitro and in vivo. A typical in vitro system, ribosome display, provides the largest available library size. In vivo methods comprise smaller libraries, the size of which depends on their transformation efficiency. Libraries in different hosts such as phage, bacteria, yeast, insect cells, mammalian cells exhibit higher biosynthetic capabilities. The latest library systems are compared and their strengths and limitations are reviewed.
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Affiliation(s)
- Christa Mersich
- Department of Biotechnology, University of Natural Resources and Applied Life Sciences Vienna, Muthgasse 18, Vienna, Austria
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