ArticleJournal of biomolecular NMR2011
Elucidating slow binding kinetics of a protein without observable bound resonances by longitudinal relaxation NMR spectroscopy.
Article in Journal of biomolecular NMR, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 4 citations in OpenAlex.
- Characterizing RNA dynamics at atomic resolution using solution-state NMR spectroscopy.Nature methods · 2011Review
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1 author at 1 institution in 1 country.
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Abstract
We developed a new method to elucidate the binding kinetics k(on) and k(off), and the dissociation constant K(D) (=k(off)/k(on)), of protein-protein interactions without observable bound resonances of the protein of interest due to high molecular weight in a complex with a large target protein. In our method, k(on) and k(off) rates are calculated from the analysis of longitudinal relaxation rates of free resonances measured for multiple samples containing different concentration ratios of (15)N-labeled protein and substoichiometric amounts of the target protein. The method is applicable to interactions that cannot be analyzed by relaxation dispersion spectroscopy due to slow interactions on millisecond to second timescale and/or minimal conformational (chemical shift) change upon binding. We applied the method to binding of the B1 domain of protein G (GB1) to immunoglobulin G, and derived the binding kinetics despite the absence of observable bound GB1 resonances.
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