Effect of high-lysine mutations on the protein fractions of barley grain.
We have studied the effects of six high-lysine barley mutations (Risø mutants 1508 and 56, Notch 1 and 2, lys 95 and 449) on the protein fractions of the grain. All mutants had a decreased relative and total amount of the lysine-poor hordein fraction, but only in Risø 1508 and 56 was the polypeptide composition of this fraction greatly affected. In all the mutants there were increases in the lysine-rich glutelin proteins and in nonprotein N while in Risø 1508 and the Notch mutants the total amount of salt-soluble proteins was also increased and their relative polypeptide composition substantially altered.
D002523:Edible Grain; D001467:Hordeum; D008239:Lysine / Q000032:analysis / Q000235:genetics*; D009154:Mutation; D010641:Phenotype; D010940:Plant Proteins / Q000032:analysis / Q000235:genetics*; D013045:Species Specificity
D010940:Plant Proteins; D008239:Lysine