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Related Experiment Video

Updated: Jan 6, 2026

Author Spotlight: Investigating the Effects of Compounds on Intestinal Tissue Using 3D Human Cell Line Models
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Towards coeliac-safe bread.

Zhiyong Zhang1, Yiting Deng2,3, Wei Zhang1

  • 1Waksman Institute of Microbiology, Rutgers University, Piscataway, NJ, USA.

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|October 5, 2019
PubMed
Summary
This summary is machine-generated.

Teff α-globulin3 (Etglo3) forms storage vacuoles in maize, similar to wheat. Co-expression with maize γ-zein suggests a pathway for developing coeliac-safe grains with bread-making potential.

Keywords:
glutenmaizestorage vacuoleteffwheatα-globulin

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Area of Science:

  • Plant molecular biology
  • Food science
  • Cereal biochemistry

Background:

  • Wheat proteins trigger coeliac disease in susceptible populations.
  • Conventional breeding cannot create coeliac-safe wheat varieties due to complex gene families.
  • Alternative coeliac-safe grains with desirable baking properties are needed.

Purpose of the Study:

  • To investigate the bread-making potential of teff (Eragrostis tef) proteins in a coeliac-safe cereal like maize.
  • To characterize the properties and interactions of teff α-globulin3 (Etglo3) in maize.

Main Methods:

  • Expressing teff Etglo3 in maize.
  • Transmission electron microscopy and immunogold labelling to visualize protein deposition.
  • Genetic modification of maize using RNA interference (RNAi) for zein proteins.

Main Results:

  • Teff Etglo3 forms storage vacuoles in maize, resembling wheat.
  • Etglo3 aggregates in vacuoles, co-depositing with maize 27-kDa γ-zein.
  • Etglo3 accumulation is dependent on γ-zein, suggesting synergistic interaction.

Conclusions:

  • Teff α-globulins, particularly Etglo3, can form functional storage structures in maize.
  • The interaction between Etglo3 and γ-zein mimics glutenin-gliadin interactions in wheat.
  • This research is a significant step towards developing coeliac-safe grains with bread-making capabilities.