GAD — Triticum turgidum subsp. durum

Summary

TRITD2AV1G192710 (GAD) on durum wheat chromosome 2A encodes a glutamate decarboxylase, a pyridoxal phosphate-dependent enzyme with glutamate decarboxylase activity (EC 4.1.1.15) and calmodulin binding. The gene is associated with the GABA shunt, glutamate breakdown, sphingolipid breakdown, and carboxylic acid metabolism, as well as response to water, seed germination, and homeostasis. The encoded protein localises to the cytosol, ER, and ER membrane. In this species, GAD is linked to growth stage and germination rate. Studies of related genes in other species connect the family to grain yield, drought tolerance, sugar content, and salt tolerance.