BAM1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.1HG0057350 (HvBAM1) on barley chromosome 1H encodes a beta-amylase (EC 3.2.1.2) with a glycoside hydrolase family 14 domain, and also exhibits DNA-binding transcription factor activity and identical protein binding. The gene is associated with maltose anabolism, polysaccharide breakdown, and responses to water, cold, herbivore, and osmotic stress. It has been linked to photosynthetic rate, grain weight, protein content, seed development, and programmed cell death. Localisation evidence connects the product to the chloroplast stroma, nucleus, cytosol, endoplasmic reticulum, and extracellular space. Studies of related genes in other species link the family to starch metabolism, shoot apical meristem maintenance, xylem patterning, and dehydration stress response.