LUX — Arabidopsis thaliana

Summary

AT3G46640, known as LUX (LUX ARRHYTHMO) or PCL1 (PHYTOCLOCK 1) in Arabidopsis thaliana on chromosome 3, encodes a DNA-binding transcription factor with protein homodimerization activity, belonging to the LUX/BOA-like and Myb-domain families. The gene is associated with the regulation of the circadian clock, including temperature compensation, entrainment, and photoperiodism, as well as red/far-red light signaling, photomorphogenesis, leaf senescence, and autophagy. It is linked to numerous traits such as flowering time, photoperiod sensitivity, hypocotyl length, plant height, seed viability, drought recovery, leaf drying, starch mobilization, stomatal opening, and responses to temperature stress, aphids, and jasmonic acid. The protein localizes to the nucleus and transcription regulator complex. Studies of related genes in other species link the family to freezing tolerance and vegetative growth.