High-Resolution Bioactivity Profiling of Mixtures toward the Acetylcholine Binding Protein Using a Nanofractionation Spotter Technology
Open accessAbstract
This study describes the evaluation, validation, and use of contactless postcolumn fractionation of bioactive mixtures with acetylcholine binding protein (AChBP) affinity analysis with help of a spotter technology. The high-resolution fractionation tailors the fractionation frequency to the chromatographic peaks. Postcolumn reagents for AChBP bioaffinity profiling are mixed prior to droplet ejection into 1536-well plates. After an incubation step, microplate reader analysis is used to determine bioactive compounds in a mixture. For ligands tested, a good correlation was found for IC(50)s determined in flow injection analysis mode when compared with traditional radioligand binding assays. After the evaluation and validation, bioaffinity profiling of actual mixtures was performed. The advantage of this "atline" technology using postcolumn bioaffinity analysis when compared to continuous flow online postcolumn bioaffinity profiling is the possibility to choose postcolumn incubation times freely without compromising resolution due to diffusion effects.
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Offline readout methods have the advantage that even compounds suffering from slow binding kinetics can be assigned.
“Offline methods have the advantage that even compounds suffering from slow binding kinetics can be assigned.”
From Connecting metabolome and phenotype: recent advances in functional metabolomics tools for the identification of bioactive natural products (2024) · cites this paper as [55]
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- Authors
- Kool, J., Heus, F., de Kloe, G., Lingeman, H., Smit, A. B., Leurs, R., Edink, E., De Esch, I. J. P., Irth, H., & Niessen, W. M. A.
- Affiliations
- Vrije Universiteit Amsterdam (NL)
- Amsterdam Neuroscience (NL)
- Corresponding author
- Kool, Jeroen
- Venue
- SLAS Discovery
- Publisher
- Elsevier BV
- Published
- 2011-09
- Volume
- 16
- Issue
- 8
- Pages
- 917-924
- ISSN
- 2472-5552 (ISSN-L)
- OpenAlex
- W2138635792
- Cited by
- 21
- References
- 21
- Citations by year
- 2025: 1 · 2024: 1 · 2023: 1 · 2019: 1 · 2017: 1 · 2016: 4 · 2015: 2 · 2014: 1 · 2013: 4 · 2012: 4
- FWCI
- 1.45
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- SLAS DISCOVERY (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- VU Research Portal (submittedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion)
- Topics
- Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
- Physical Sciences › Chemistry › Spectroscopy › Analytical Chemistry and Chromatography
- Physical Sciences › Engineering › Biomedical Engineering › Microfluidic and Capillary Electrophoresis Applications
- Keywords
- acetylcholine binding protein, droplet ejection, ligand binding, flow injection analysis, microplate reader
- MeSH terms
- Carrier Proteins, Chromatography, Affinity, Chromatography, High Pressure Liquid, Chemical Fractionation, Ligands, Nicotine, Protein Binding, Pyridines, Radioligand Assay, Recombinant Proteins, Mass Spectrometry, Reproducibility of Results, Flow Injection Analysis, Nicotinic Agonists, Bridged Bicyclo Compounds, Heterocyclic, Nanotechnology, Complex Mixtures, High-Throughput Screening Assays
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