Heptapeptide repeat structure of a wheat γ-gliadin

Abstract

A γ gliadin cDNA clone has been sequenced. The clone encodes 251 amino acid residues beginning with a 19 residue signal peptide. The putative processed amino terminus is characteristic of a γ gliadin. Fourteen imperfect repeats of a heptapeptide occur near the amino terminus. Data from hybrid selected translation suggest that the cDNA contains $\text{sol3}\text{4}$ of the mRNA coding region. These results provide the first description of the amino terminus of a γ gliadin precursor.