BGT — Arabidopsis thaliana

Summary

AT3G54610, also known as GCN5, BGT, or HAG1, encodes a histone acetyltransferase of the GNAT family in Arabidopsis thaliana. The protein possesses histone acetylase activity, particularly on histones H3 and H4, and contains a bromodomain. GCN5 is associated with a wide range of developmental and stress-response processes, including floral and leaf organogenesis, gynoecium development, root epidermal patterning, and meristem function. It has been linked to responses to light, cold, phosphate starvation, and thermotolerance, as well as to fatty acid composition and iron homeostasis. The gene is also connected to traits such as starch grain size, biomass yield, photosynthetic ability, chilling stress response, flower morphology, and seed set. Related genes in other species are linked to microtubule organization and cellulose synthase complex trafficking.