SBE1 — Triticum turgidum subsp. durum

Summary

TRITD2AV1G189770 (symbol SBE1, also known as TtSBE3 or SBEIIB) on durum wheat chromosome 2A encodes a 1,4-alpha-glucan branching enzyme with a glycosyl hydrolase family 13 catalytic domain, classified as EC 2.4.1.18 and annotated with isoamylase activity, 1,4-alpha-glucan branching enzyme activity, cation binding, and O-glucosyl hydrolase activity. The gene is associated with starch biosynthesis, amylopectin formation, and the synthesis of highly branched alpha-glucan, as well as with amyloplast organization, starch anabolism and breakdown, glycogen anabolism, and fermentation. It has been linked to amylose content, grain filling period, starch content, photosynthetic rate, grain weight, and grain yield. Related genes in other species connect the family to grain amylopectin content, starch gelatinization temperature, bread loaf volume, grain texture, seedling vigor, and plant male sterility.