Abstract

Abstract Here is reported the first successful attempt of high- Mr glutenin subunits separation by dye-ligand chromatography of Alisei 1 (containing 1Bx7, 1Dx2+1Dy12 subunits), Alisei 2 (containing 1Bx7 and 1Dy12 subunits), and WRU 6979 (containing 1Dx5+1Dy10 subunits), flours, using Cibacron Blue F3GA-Sepharose CL6B as resin. High- Mr glutenin subunits interacted strongly with the Cibacron Blue F3GA ligand and their separation, together with high recovery, was successful by using sodium dodecyl sulphate as eluting agent. Experimental evidence and amino acid sequences of high- Mr glutenin subunits suggested a prevalent electrostatic interaction between high-Mr glutenin subunits and the Cibacron Blue F3GA dye.

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