BE3 (TRAESCS2A02G293400) — triticum aestivum
Summary
TaBE3 (TRAESCS2A02G293400) on wheat chromosome 2A encodes a 1,4-alpha-glucan branching enzyme (EC 2.4.1.18) with isoamylase activity, belonging to the glycoside hydrolase 13 family. The enzyme is associated with starch and amylopectin anabolism, endosperm and seed development, and carbohydrate anabolism. It localises to the amyloplast and chloroplast isoamylase complex. The gene is linked to grain weight, width, size, protein content, starch content, polysaccharide content, and resistant starch content. It has also been connected to amylose content, amylopectin structure, and reduced maltose accumulation. Studies of related genes in other species link the family to starch biosynthesis and endosperm development, while sequence similarity associations in other cereals connect the family to grain yield, seed weight, drought tolerance, and seedling vigour.
Annotations
- Chromosome
- 2A
- Related genes
- BE3, TF1, SBE2.2, MADS2, ABS, CPP5, EBP, MADS4
- GO terms
- NO storage, Digestion, hormone metabolism, carbohydrate metabolism, Embryo Development Ending In Seed Dormancy, glycogen anabolism, DNA Replication, Amyloplast
- Publications
- 26715025, 18989364, 14759260, 18218973, 15656970, 23393426, 25663508, 16615871
- Traits
- Polymerization Profile Similar to be2/be3 Mutants, Reduced Maltose Accumulation, Normal Sugar Levels Compared to Wild Type, Severely Reduced Plant Size and Biomass, Altered Malto-oligosaccharide Composition, Cytosolic Maltose Accumulation, Viable Seed Production Despite Mutation, Increased Starch Phosphorylase Activity