BZIP28 — Arabidopsis thaliana

Summary

AT3G10800 (BZIP28) in Arabidopsis thaliana encodes a bZIP transcription factor with DNA-binding and transcription activator activity, as well as histone H3 methylase and serine-type endopeptidase activities. The gene is associated with the unfolded protein response, ER stress response, protein folding in the ER, and the ERAD pathway. It has been linked to temperature stress responses, including high and low temperature stress, as well as photoperiod-sensitive flowering time, seed dormancy, germination rate, root development, plant height, and disease tolerance. Additional associations include responses to oxidative stress, salt stress, and cadmium stress, along with pollen fertility, embryo development, and vegetative growth time. The protein localizes to the ER membrane and lumen, nuclear envelope, and Golgi membrane. Studies of related genes in other species link the family to cold tolerance.