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Solution conformational analysis of the alpha-zein proteins of maize
A S Tatham1, J M Field, V J Morris
1Department of Agricultural Sciences, University of Bristol, United Kingdom.
The Journal of Biological Chemistry
|December 15, 1993
Abstract:
Small angle x-ray scattering and viscometric analyses of the alpha-zeins of maize in solution indicated that the molecules were asymmetric. Structure predictions of consensus sequences for the two classes of alpha-zeins, Z19 and Z22, were in good agreement with the alpha-helical contents determined by circular dichroism. Dimensions determined by small angle x-ray scattering and viscometry indicated a predominantly alpha-helical conformation. The data are discussed in relation to models for the solution conformation and to earlier models for alpha-zeins structure.