Lunasin in cereal seeds: What is the origin?

J Cereal Sci. 2013 May;57(3):267-269. doi: 10.1016/j.jcs.2013.01.013.

Abstract

Lunasin is a peptide from soybean seeds which has been demonstrated to have anticancer properties. It has also been reported in cereal seeds: wheat, rye, barley and Triticale. However, extensive searches of transcriptome and DNA sequence databases for wheat and other cereals have failed to identify sequences encoding either the lunasin peptide or a precursor protein. This raises the question of the origin of the lunasin reported in cereal grain.

Keywords: Cereals; Lunasin; Soybean; Wheat.