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ABI5 | bZIP transcription factor ABI5 homolog; Transcription factor that possesses transactivation activity in yeast. Involved in abscisic acid (ABA) signaling pathway. Binds to the G-box motif 5'- CACGTG-3' of TRAB1 gene promoter. Involved in the regulation of pollen maturation. May act as negative regulator of salt stress response. Together with PYL5, PP2C30 and SAPK2, is part of an ABA signaling unit that modulates seed germination and early seedling growth. Belongs to the bZIP family. ABI5 subfamily. (388 aa) | ||||
OSK1 | Serine/threonine protein kinase OSK1; Serine/threonine-protein kinase involved in sugar signaling during germination and seedling growth. Negative regulators of sugar response complex (SRC) in alpha-amylase gene promoters, thus relieving SRC sugar repression in a MYBS1-dependent manner. Required for MYBS1 and AAMY3 accumulation under glucose starvation. (505 aa) | ||||
BZIP23 | bZIP transcription factor 23; Transcriptional activator that mediates abscisic acid (ABA) signaling. Can regulate the expression of a wide spectrum of stress-related genes in response to abiotic stresses through an ABA- dependent regulation pathway. Confers ABA-dependent drought and salinity tolerance. Binds specifically to the ABA-responsive elements (ABRE) in the promoter of target genes to mediate stress-responsive ABA signaling. (357 aa) | ||||
rbcL | Ribulose bisphosphate carboxylase large chain; RuBisCO catalyzes two reactions: the carboxylation of D- ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate in the photorespiration process. Both reactions occur simultaneously and in competition at the same active site. (477 aa) |