SwePub - search: WFRF:(van Elk René)

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1.	de Kloe, Gerdien E, et al. (author) Surface Plasmon Resonance Biosensor Based Fragment Screening Using Acetylcholine Binding Protein Identifies Ligand Efficiency Hot Spots (LE Hot Spots) by Deconstruction of Nicotinic Acetylcholine Receptor α7 Ligands 2010 In: Journal of Medicinal Chemistry. - : American Chemical Society (ACS). - 0022-2623 .- 1520-4804. ; 53:19, s. 7192-7201 Journal article (peer-reviewed)abstract The soluble acetylcholine binding protein (AChBP) is a homologue of the ligand-binding domain of the nicotinic acetylcholine receptors (nAChR). To guide future fragment-screening using surface plasmon resonance (SPR) biosensor technology as a label-free, direct binding, biophysical screening assay, a focused fragment library was generated based on deconstruction of a set of α7 nAChR selective quinuclidine containing ligands with nanomolar affinities. The interaction characteristics of the fragments and the parent compounds with AChBP were evaluated using an SPR biosensor assay. The data obtained from this direct binding assay correlated well with data from the reference radioligand displacement assay. Ligand efficiencies for different (structural) groups of fragments in the library were correlated to binding with distinct regions of the binding pocket, thereby identifying ligand efficiency hot spots (LE hot spots). These hot spots can be used to identity the most promising hit fragments in a large scale fragment library screen.

de Kloe, Gerdien E, et al. (author)
Surface Plasmon Resonance Biosensor Based Fragment Screening Using Acetylcholine Binding Protein Identifies Ligand Efficiency Hot Spots (LE Hot Spots) by Deconstruction of Nicotinic Acetylcholine Receptor α7 Ligands
2010
In: Journal of Medicinal Chemistry. - : American Chemical Society (ACS). - 0022-2623 .- 1520-4804. ; 53:19, s. 7192-7201
Journal article (peer-reviewed)abstract
- The soluble acetylcholine binding protein (AChBP) is a homologue of the ligand-binding domain of the nicotinic acetylcholine receptors (nAChR). To guide future fragment-screening using surface plasmon resonance (SPR) biosensor technology as a label-free, direct binding, biophysical screening assay, a focused fragment library was generated based on deconstruction of a set of α7 nAChR selective quinuclidine containing ligands with nanomolar affinities. The interaction characteristics of the fragments and the parent compounds with AChBP were evaluated using an SPR biosensor assay. The data obtained from this direct binding assay correlated well with data from the reference radioligand displacement assay. Ligand efficiencies for different (structural) groups of fragments in the library were correlated to binding with distinct regions of the binding pocket, thereby identifying ligand efficiency hot spots (LE hot spots). These hot spots can be used to identity the most promising hit fragments in a large scale fragment library screen.

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