Cell cycle transcription factor E2F2 mediates non-stress temperature response of AtHSP70-4 in Arabidopsis.

AtHSP70 expression exhibits both stress and non-stress temperature response, however, the molecular mechanisms underlying these temperature signaling pathways remain elusive. Here we performed truncation and deletion assay to investigate the cis-elements within the promoter region of AtHSP70-4 (AT3G12580). And found the region between -1000 and -1100 bp from the translation initiation site (TIS) was indispensable for the non-stress temperature response of AtHSP70.