BE3 — Solanum tuberosum
Summary
PGSC0003DMG400009981 (BE3, also known as SBE1) encodes a 1,4-alpha-glucan branching enzyme (EC 2.4.1.18) with a GH13 catalytic domain and an A-amylase/branching_C domain, localised to the amyloplast and chloroplast stroma. In potato, BE3 is associated with starch digestibility and starch branching, and is linked to amylopectin and glucan anabolism, starch granule initiation, and regulation of starch metabolism. The gene has been connected to numerous traits including amylose content, amylose-to-amylopectin ratio, starch yield, starch content, grain size, drought tolerance, net photosynthetic rate, and reducing sugar content. It is also associated with responses to biotic stimuli and detection of virus. Studies of related genes in other species link the family to altered starch chain length distribution and larger starch granules.
Annotations
- Chromosome
- 4
- Related genes
- BE3, SBE2.2
- GO terms
- Wound Healing, CRISPR-cas System, syngamy, taste, Stringent Response, Regeneration, Response To Biotic Stimulus, protein synthesis
- 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