BAM1 — Solanum tuberosum

Summary

StBAM1, encoded by the potato gene PGSC0003DMG400000169 on chromosome 1, is a beta-amylase (EC 3.2.1.2) with DNA-binding transcription factor activity and identical protein binding capability. It belongs to the glycosyl hydrolase 14 family and is localized to chloroplast stroma, nucleus, cytosol, endoplasmic reticulum, and secretory vesicles. StBAM1 is associated with maltose anabolism, starch anabolism, sucrose breakdown, polysaccharide breakdown, carbohydrate metabolism, ABA signaling, response to cold, response to herbivore, and regulation of shoot development. It has been linked to traits including photosynthetic rate, respiration rate, and reducing sugar, sucrose, and sugar content. Phenotypic associations include leaf starch degradation, plant growth, shoot apical meristem size, anther development, male fertility, heat stress tolerance, disease resistance, and virus movement. Studies of related genes in other species link the family to starch metabolism, shoot apical meristem maintenance, and xylem patterning.