Abstract
The use of the analytical ultracentrifuge to study nonideal behavior of macromolecules in multicomponent systems is discussed, noting the value of interference optics to extend the range of concentrations of macromolecule that may be studied. The choice of appropriate theory in the treatment of experimental data is examined, using a study of bovine serum albumin (BSA) in 7 M urea at pH 3.3 as an example. Under these conditions BSA undergoes extensive unfolding and exhibits marked nonideality, with the binding of approximately 200 molecules of urea per molecule of BSA.
Similar content being viewed by others
REFERENCES
Baldwin, R. L. (1957). Biochem.J. 65, 490–502.
Carter, D. C. and Ho, J. X. (1994). Advan.Protein Chem. 45, 153–203.
Casassa, E. F. and Eisenberg, H. (1964). Advan.Protein Chem. 19, 287–395.
Cecil, R. and Ogston, A. G. (1951). J.Sci.Instr. 28, 253–254.
Charlwood, P. A. (1955). Can.J.Chem. 33, 1043–1054.
Creeth, J. M. and Pain, R. H. (1967). Prog.Biophys.Mol.Biol. 17, 217–287.
Giebeler, R. (1992). In Analytical Ultracentrifugation in Biochemistry and Polymer Science (Harding, S. E., Rowe, A. J., and Horton, J. C., eds.), Royal Society of Chemistry, Cambridge, pp. 16–25.
Gucker, F. T., Gage, F. W., and Moser, C. E. (1938). J.Am.Chem.Soc. 60, 2582–2588.
Hall, D. R., Jacobsen, M. P., and Winzor, D. J. (1995). Biophys.Chem. 57, 47–54.
Harrington, W. F., Johnson, P., and Ottewill, R. H. (1956). Biochem.J. 62, 569–582.
Kay, C. M. and Edsall, J. T. (1956). Arch.Biochem.Biophys. 65, 354–399.
McKenzie, H. A., Smith, M. B., and Wake, R. G. (1955). Nature 176, 738.
McKenzie, H. A., Smith, M. B., and Wake, R. G. (1963). Biochim.Biophys. Acta 69, 222–239.
Richards, E. G. and Schachman, H. K. (1959). J.Phys.Chem. 63, 1578–1591.
Rowe, A. J. (1992). In Analytical Ultracentrifugation in Biochemistry and Polymer Science (Harding, S. E., Rowe, A. J., and Horton, J. C., eds.), Royal Society of Chemistry, Cambridge, pp. 394–406.
Scatchard, G. (1963). In Ultracentrifugal Analysis in Theory and Experiment (Williams, J. W., ed.), Academic Press, New York, pp. 105–117.
Svedberg, T. and Pedersen, K. O. (1959). The Ultracentrifuge, Clarendon Press, Oxford and Johnson Reprint Corp., New York.
Trautman, R. and Crampton, C. F. (1959). J.Am.Chem.Soc. 81, 4036–4040.
Van Holde, K. E. and Baldwin, R. L. (1958). J.Phys.Chem. 62, 734–743.
Williams, J. W., Van Holde, K. E., Baldwin, R. L. and Fujita, H. (1958). Chem.Rev. 58, 715–806.
Yphantis, D. A. (1964). Biochemistry 3, 297–317.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Armstrong, J.M., McKenzie, H.A. Apparently Anomalous Sedimentation Behavior in Mixed Solvent Systems with Strong Interactions between Solution Components: Analysis of Nonideal Behavior by Bovine Serum Albumin in 7 M Urea at pH 3.3. J Protein Chem 20, 255–263 (2001). https://doi.org/10.1023/A:1010960227494
Published:
Issue Date:
DOI: https://doi.org/10.1023/A:1010960227494