An asparagine residue at the N-terminus affects the maturation process of low molecular weight glutenin subunits of wheat endosperm.

ABSTRACT:

Background

Wheat glutenin polymers are made up of two main subunit types, the high- (HMW-GS) and low- (LMW-GS) molecular weight subunits. These latter are represented by heterogeneous proteins. The most common, based on the first amino acid of the mature sequence, are known as LMW-m and LMW-s types. The mature sequences differ as a consequence of three extra amino acids (MET-) at the N-terminus of LMW-m types. The nucleotide sequences of their encoding genes are, however, nearly identical, so that the relationship between gene and protein sequences is difficult to ascertain.It has been hypothesized that the presence of an asparagine residue in position 23 of the complete coding sequence for the LMW-s type might account for the observed three-residue shortened sequence, as a consequ

SUBMITTER: Egidi E 

PROVIDER: S-EPMC4004387 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature