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Biomimetic Interactions of Proteins with Functionalized Nanoparticles: A Thermodynamic Study
Abstract
Gold nanoparticles (NPs) functionalized with L-amino acid-terminated monolayers provide an effective platform for the recognition of protein surfaces. Isothermal titration calorimetry (ITC) was used to quantify the binding thermodynamics of these functional NPs with alpha-chymotrypsin (ChT), histone, and cytochrome c (CytC). The enthalpy and entropy changes for the complex formation depend upon the nanoparticle structure and the surface characteristics of the proteins, e.g., distributions of charged and hydrophobic residues on the surface. Enthalpy-entropy compensation studies on these NP-protein systems indicate an excellent linear correlation between DeltaH and TDeltaS with a slope (alpha) of 1.07 and an intercept (TDeltaS0) of 35.2 kJ mol(-1). This behavior is closer to those of native protein-protein systems (alpha = 0.92 and TDeltaS0 = 41.1 kJ mol(-1)) than other protein-ligand and synthetic host-guest systems.
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Cites
Anatomy of hot spots in protein interfaces
Bogan, A. A., & Thorn, K. S. (1998) · Journal of Molecular Biology · doi:10.1006/jmbi.1998.1843 · Cited by 1,988
Fluidity of Bound Hydration Layers
Raviv, U., & Klein, J. (2002) · Science · doi:10.1126/science.1074481 · Cited by 721
Cited by
Walkey, C. D., & Chan, W. C. W. (2012) · Chem. Soc. Rev. · doi:10.1039/c1cs15233e · Cited by 1,758
Sharifi, S., Behzadi, S., Laurent, S., Laird Forrest, M., Stroeve, P., & Mahmoudi, M. (2012) · Chem. Soc. Rev. · doi:10.1039/c1cs15188f · Cited by 1,460
Drug Targeting Strategies Based on Charge Dependent Uptake of Nanoparticles into Cancer Cells
Saadat, M., Zahednezhad, F., Zakeri-Milani, P., Reza Heidari, H., Shahbazi-Mojarrad, J., & Valizadeh, H. (2019) · Journal of Pharmacy & Pharmaceutical Sciences · doi:10.18433/jpps30318 · Cited by 88
Metadata
- Authors
- De, M., You, C.-C., Srivastava, S., & Rotello, V. M.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-08-02
- Volume
- 129
- Issue
- 35
- Pages
- 10747-10753
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2014960272
- Cited by
- 318
- References
- 2
- FWCI
- 10.18
- Type
- journal article
- Language
- en
- Open access
- closed
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- De, M., You, C.-C., Srivastava, S., & Rotello, V. M. (2007). Biomimetic Interactions of Proteins with Functionalized Nanoparticles: A Thermodynamic Study. Journal of the American Chemical Society. https://doi.org/10.1021/ja071642q
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