Application of sequential extraction procedures and glycoprotein blotting for the characterization of the 2-D polypeptide patterns of barley seed proteins. |
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Authors: | W Weiss W Postel A G?rg |
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Institution: | Technische Universit?t München, Lehrstuhl für Allgemeine Lebensmitteltechnologie, Freising-Weihenstephan, Germany. |
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Abstract: | Barley (Hordeum vulgare L.) proteins were sequentially extracted from ground seeds with Tris-HCl buffer, 55% 2-propanol, 55% 2-propanol containing 1% dithiothreitol, and 6 M urea containing 2% Nonidet P-40 and 1% dithiothreitol. The protein composition of these solubility fractions was then analyzed by high resolution two-dimensional gel electrophoresis with immobilized pH gradient 4-9 in the first dimension, followed by silver staining and glycoprotein blotting, respectively, for a more detailed characterization of the two-dimensional polypeptide pattern of barley seed proteins. |
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