AMY1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0721200 (symbol AMY1, also known as HvAMY1) on barley chromosome 7H encodes an alpha-amylase enzyme (EC 3.2.1.1) with alpha-amylase activity and calcium ion binding. This gene is associated with starch breakdown, sucrose breakdown, endosperm development, programmed cell death, cell death, structural organization, and NO storage. It is also linked to starch anabolism. The encoded protein is predicted to localize to the extracellular space. Associations with seed size and seed germination have been noted. Studies of related genes in other species connect the alpha-amylase family to similar carbohydrate metabolism processes, though these findings are not yet established for barley.