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Denbaum E, Altern SH, Vecchiarello N, Cramer SM. A batch screening technique for the calculation of chromatographic separability. J Chromatogr A 2024; 1732:465170. [PMID: 39098099 DOI: 10.1016/j.chroma.2024.465170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/03/2024] [Accepted: 07/14/2024] [Indexed: 08/06/2024]
Abstract
This paper employs a high-throughput parallel batch (microtiter plate) adsorption screen with sequential salt step increases to rapidly generate protein elution profiles for multiple resins at different pHs using a protein library. The chromatographic set used in this work includes single mode, multimodal anion-exchange (MMA), and multimodal cation-exchange (MMC) resins. The protein library consists of proteins with isoelectric points ranging from 5.1 to 11.4 with varying hydrophobicities as determined by their retention on hydrophobic interaction chromatography. The batch sequential experiments are carried out using one protein at a time with a wide set of resins at multiple pH conditions, thus enabling simple microtiter plate detection. A mathematical formulation is then used to determine the first moment of the distributions from each chromatogram (sequential step elution) generated in the parallel batch experiments. Batch data first moments (expressed in salt concentration) are then compared to results obtained from column linear salt gradient elution, and the techniques are shown to be consistent. In addition, first moment data are used to calculate one-resin separability scores, which are a measure of a resin's ability, at a specified pH, to separate the entire set of proteins in the library from one another. Again, the results from the batch and column experiments are shown to be comparable. The first moment data sets were then employed to calculate the two-resin separability scores, which are a measure of the ability of two resins to synergistically separate the entire set of proteins in the library. Importantly, these results based on the two-resin separability performances derived from the batch and column experiments were again shown to be consistent. This approach for rapidly screening large numbers of chromatographic resins and mobile phase conditions for their elution behavior may prove useful for enabling the rapid discovery of new chromatographic ligands and resins.
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Affiliation(s)
- Eric Denbaum
- Department of Biochemistry and Biophysics and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States
| | - Scott H Altern
- Department of Chemical and Biological Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States
| | - Nicholas Vecchiarello
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA, 22903, United States
| | - Steven M Cramer
- Department of Chemical and Biological Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States.
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Matinja AI, Kamarudin NHA, Leow ATC, Oslan SN, Ali MSM. Cold-Active Lipases and Esterases: A Review on Recombinant Overexpression and Other Essential Issues. Int J Mol Sci 2022; 23:ijms232315394. [PMID: 36499718 PMCID: PMC9740821 DOI: 10.3390/ijms232315394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022] Open
Abstract
Cold environments characterised by diverse temperatures close to or below the water freezing point dominate about 80% of the Earth's biosphere. One of the survival strategies adopted by microorganisms living in cold environments is their expression of cold-active enzymes that enable them to perform an efficient metabolic flux at low temperatures necessary to thrive and reproduce under those constraints. Cold-active enzymes are ideal biocatalysts that can reduce the need for heating procedures and improve industrial processes' quality, sustainability, and cost-effectiveness. Despite their wide applications, their industrial usage is still limited, and the major contributing factor is the lack of complete understanding of their structure and cold adaptation mechanisms. The current review looked at the recombinant overexpression, purification, and recent mechanism of cold adaptation, various approaches for purification, and three-dimensional (3D) crystal structure elucidation of cold-active lipases and esterase.
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Affiliation(s)
- Adamu Idris Matinja
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Department of Biochemistry, Faculty of Science, Bauchi State University, Gadau 751105, Nigeria
| | - Nor Hafizah Ahmad Kamarudin
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Adam Thean Chor Leow
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Enzyme Technology and X-ray Crystallography Laboratory, VacBio 5, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Siti Nurbaya Oslan
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Enzyme Technology and X-ray Crystallography Laboratory, VacBio 5, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Mohd Shukuri Mohamad Ali
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Enzyme Technology and X-ray Crystallography Laboratory, VacBio 5, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Correspondence:
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Kadum H, Hamid AA, Abas F, Ramli NS, Mohammed AKS, Muhialdin BJ, Jaafar AH. Bioactive Compounds Responsible for Antioxidant Activity of Different Varieties of Date ( Phoenix dactylifera L.) Elucidated by 1H- NMR Based Metabolomics. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2019. [DOI: 10.1080/10942912.2019.1590396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Hana Kadum
- Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Malaysia
- Faculty of science, University Al-Muthanna, Al-Muthanna, Iraq
| | - Azizah Abdul Hamid
- Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Malaysia
| | - Faridah Abas
- Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Malaysia
- Institute of Bioscience, University Putra Malaysia, Serdang, Malaysia
| | - Nurul Shazini Ramli
- Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Malaysia
| | | | - Belal J Muhialdin
- Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Malaysia
| | - Ahmad Haniff Jaafar
- Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Malaysia
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Current advances in the development of high-throughput purification strategies for the generation of therapeutic antibodies. ACTA ACUST UNITED AC 2015. [DOI: 10.4155/pbp.15.23] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kloke A, Fiebach AR, Zhang S, Drechsel L, Niekrawietz S, Hoehl MM, Kneusel R, Panthel K, Steigert J, von Stetten F, Zengerle R, Paust N. The LabTube - a novel microfluidic platform for assay automation in laboratory centrifuges. LAB ON A CHIP 2014; 14:1527-1537. [PMID: 24590165 DOI: 10.1039/c3lc51261d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Assay automation is the key for successful transformation of modern biotechnology into routine workflows. Yet, it requires considerable investment in processing devices and auxiliary infrastructure, which is not cost-efficient for laboratories with low or medium sample throughput or point-of-care testing. To close this gap, we present the LabTube platform, which is based on assay specific disposable cartridges for processing in laboratory centrifuges. LabTube cartridges comprise interfaces for sample loading and downstream applications and fluidic unit operations for release of prestored reagents, mixing, and solid phase extraction. Process control is achieved by a centrifugally-actuated ballpen mechanism. To demonstrate the workflow and functionality of the LabTube platform, we show two LabTube automated sample preparation assays from laboratory routines: DNA extractions from whole blood and purification of His-tagged proteins. Equal DNA and protein yields were observed compared to manual reference runs, while LabTube automation could significantly reduce the hands-on-time to one minute per extraction.
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Affiliation(s)
- A Kloke
- HSG-IMIT - Institut für Mikro- und Informationstechnik, Georges-Köhler-Allee 103, 79110 Freiburg, Germany.
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Evaluation of immunoglobulin adsorption on the hydrophobic charge-induction resins with different ligand densities and pore sizes. J Chromatogr A 2013; 1278:61-8. [DOI: 10.1016/j.chroma.2012.12.054] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 12/18/2012] [Accepted: 12/20/2012] [Indexed: 11/24/2022]
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