GWD — Arabidopsis thaliana

Summary

AT1G10760 (GWD, also known as SEX1) encodes a glucan, water dikinase (EC 2.7.9.4) with alpha-glucan, water dikinase activity, and is additionally associated with SUMO transferase activity and SUMO binding. This Arabidopsis thaliana gene is linked to starch accumulation, starch breakdown, starch degradation, and regulation of starch breakdown, as well as starch grain size and synthesis. GWD is associated with freezing tolerance, impaired freezing tolerance, and low temperature stress response. Other associations include biomass yield, leaf size, seedling growth, flowering time, sucrose and sugar content, phosphate and nitrate content, amylose content, oxidative stress response, abscisic acid sensitivity, and defense gene expression. The protein localizes to the chloroplast envelope and stroma, and is also found in the cytosol, nucleus, mitochondria, and Golgi complex.