N‐terminal amino acid sequences of chloroform/methanol‐soluble proteins and albumins from endosperms of wheat, barley and related species

Abstract

The N‐terminal amino acid sequences of two chloroform/methanol soluble globulins from barley and one form wheat are reported. They are homologous with N‐terminal sequences previously reported for α‐amylase and trypsin inhibitors from cereals and 2 S storage proteins from castor bean and rape. Three albumins were also purified from Aegilops squarrosa and Triticum monococcum . These had N‐terminal amino acid sequences most closely related to the α‐amylase and trypsin inhibitors. The relationships of this superfamily of seed proteins are discussed.