Journal
NANO LETTERS
Volume 10, Issue 8, Pages 3101-3105Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl101746v
Keywords
Gold nanoparticles; NMR; protein-nanoparticle interactions; chemical shift mapping
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We demonstrate that it is possible to identify the protein-nanoparticle interaction site at amino acid scale in solution. Using NMR, chemical shift perturbation analysis, and dynamic light scattering we have identified a specific domain of human ubiquitin that interacts with gold nanoparticles. This method allows a detailed structural analysis of proteins absorbed onto surfaces of nanoparticles in physiological conditions and it will provide much needed experimental data for better modeling and prediction of protein-nanoparticle interactions.
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