AT5G11260 — Arabidopsis thaliana

Summary

AT5G11260 (HY5) encodes a bZIP transcription factor with DNA-binding transcription activator activity, phytochrome binding, and photoreceptor activities. In Arabidopsis, HY5 is associated with light-induced peroxisome proliferation, salt stress tolerance, flavonol and melatonin biosynthesis, hypocotyl growth, gravitropic response, nutrient response, phosphate deficiency tolerance, and cadmium accumulation. It is linked to regulation of phytochrome signaling, upregulation of photosynthesis and lateral root development, thermomorphogenesis, and cellular water homeostasis. HY5 localizes to the nucleus, cytosol, plasmodesmata, and mitochondria. The gene is connected to numerous agronomic traits including leaf area, seedling height, seed volume and shape, drought recovery, osmotic adjustment, tiller angle, and fruit quality. Related genes in other species link the family to carotenoid biosynthesis, fruit ripening, sugar content, grain yield, and shade tolerance.