Abstract
Through contact-angle measurements with a number of liquids, on layers of hydrated human serum albumin (HSA), built on anisotropic ultrafilter membranes, the apolar, Lifshitz-van der Waals surface tension component, as well as the polar, electron-acceptor and electron-donor parameters of the hydrated layers could be determined. From these data, it was found that the degree of orientation of the water molecules of hydration of HSA is ≈98% in the first layer of hydration and ≈30% of the second layer. The water molecules of hydration are oriented with the H atoms closest to, and the O atoms farthest from, the protein surface.
References
Chaudhury, M. K. (1984).Short Range and Long Range Forces in Colloid and Macroscopic Systems. Ph.D. thesis, State University of New York at Buffalo.
Chaudhury, M. K., van Oss, C. J., and Good, R. J. (1988).J. Colloid Interface Sci. (submitted).
Good, R. J. (1957).J. Phys. Chem. 61, 810–812.
Holmes-Farley, S. R., Reamey, R. H., McCarthy, T. J., Deutch, J., and Whitesides, G. M. (1985).Langmuir 1, 725–740.
Kollman, P. (1977).J. Am. Chem. Soc. 99, 4875–4894.
Ling, G. N. (1972). InWater and Aqueous Solutions (Horne, R. A., ed.), Wiley (Interscience), New York, pp. 663–700.
Marcelja, S., and Radic, N. (1976).Chem. Phys. Lett. 42, 129–130.
Parsegian, V. A., Rand, R. P., and Rau, D. C. (1985).Chem. Scripta 25, 28–31.
Parsegian, V. A., Rand, R. P., and Rau, D. C. (1987). InProceedings of the Symposium on Complex and Supermolecular Fluids (Sufran, S., and Clark, N., eds.), Wiley, New York, pp. 121–142.
Sober, H. (1968).Handbook of Biochemistry. Chemical Rubber Co., Cleveland, pp. C10, C36.
van Oss, C. J., and Bronson, P. M. (1970).Sep. Sci. 5, 63–75.
van Oss, C. J., Chaudhury, M. K., and Good, R. J. (1987c).Sep. Sci. Technol. 22, 1515–1526.
van Oss, C. J., Chaudhury, M. K., and Good, R. J. (1988c). InMembrane Fusion (Ohki, S., ed.), Plenum Press, New York (in press).
van Oss, C. J., Chaudhury, M. K., and Good, R. J. (1987d).Adv. Colloid Interface Sci. 28, 35–64.
van Oss, C. J., Good, R. J., and Chaudhury, M. K. (1986).J. Protein Chem. 5, 385–405.
van Oss, C. J., Good, R. J., and Chaudhury, M. K. (1987a).Sep. Sci. Technol. 22, 1–24.
van Oss, C. J., Good, R. J., and Chaudhury, M. K. (1987b).J. Chromatogr. 391, 53–65.
van Oss, C. J., Ju, L., Chaudhury, M. K. and Good, R. J. (1988b).J. Colloid. Interface Sci. (submitted).
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van Oss, C.J., Good, R.J. Orientation of the water molecules of hydration of human serum albumin. J Protein Chem 7, 179–183 (1988). https://doi.org/10.1007/BF01025248
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DOI: https://doi.org/10.1007/BF01025248