BEG1 — Zea mays

Summary

ZM00001EB052450, also known as BEG1 or Glb1, encodes a cupin-domain seed storage protein with metallopeptidase and nutrient reservoir activities, annotated for IgE binding and metal ion binding. In maize, the gene is associated with abscisic acid-regulated gene expression and seed storage protein accumulation. It is associated with aflatoxin breakdown, acquisition of desiccation tolerance, protein storage, and protein homotrimerization and hexamerization. Associations with agronomic traits include endosperm storage protein content, grain filling period, drought sensitivity, grain yield, plant height, spike length, seed color, pollen fertility, and heterosis. The gene is also linked to insect damage, abscisic acid sensitivity, and cytoplasmic male sterility. Studies of related genes in other species link the family to grain protein content, seed viability, dormancy, and germination rate.