Function
Transcriptional activator activated by proteolytic cleavage through regulated intramembrane proteolysis (RIP) (Ref.6, PubMed:24323506, PubMed:25219309). Promotes reactive oxygen species (ROS) production during drought-induced leaf senescence. In response to abscisic acid (ABA)-mediated drought stress signals, binds directly to the promoters of RBOHC and RBOHE genes, encoding ROS biosynthetic enzymes, resulting in ROS accumulation and triggering leaf senescence via programmed cell death (PCD). ROS-induced leaf senescence sustains plant survival under drought conditions (PubMed:22313226). Involved in heat stress response. Modulates PCD through a ROS-mediated positive feedback control under heat stress conditions. This may provide an adaptation strategy for plant survival under extreme heat stress conditions (PubMed:25219309). Acts as repressor in preventing anther dehiscence during stamen development by suppressing genes that participate in jasmonic acid (JA) biosynthesis, such as DAD1, AOS, AOC3, OPR3 and 4CLL5/OPCL1 (PubMed:24323506).
Sequence
MGRGSVTSLAPGFRFHPTDEELVRYYLKRKICNKPFKFDAISVTDVYKSEPWDLPDKSRLKSRDLEWYFFSMLDKKYRNGSKTNRATEMGYWKTTGKDREILNGSKVVGMKKTLVYHKGRAPRGERTNWVMHEYRLVDQDLDKTGVHQDAFVLCRIFQKSGSGPKNGEQYGAPFVEEEWEEEDDMTFVPDQEDLGSEDHVYVHMDDIDQKSENFVVYDAIPIPLNFIHGESSNNVETNYSDSINYIQQTGNYMDSGGYFEQPAESYEKDQKPIIRDRDGSLQNEGIGCGVQDKHSETLQSSDNIFGTDTSCYNDFPVESNYLIGEAFLDPNSNLLENDGLYLETNDLSSTQQDGFDFEDYLTFFDETFDPSQLMGNEDVFFDQEELFQEVETKELEKEETSRSKHVVEEKEKDEASCSKQVDADATEFEPDYKYPLLKKASHMLGAIPAPLANASEFPTKDAAIRLHAAQSSGSVHVTAGMITISDSNMGWSYGKNENLDLILSLGLVQGNTAPEKSGNSSAWAMLIFMCFWVLLLSVSFKVSILVSSR