Transcriptional activator involved in ER stress responses. Functions as a stress sensor and transducer in ER stress signaling pathway. After proteolysis by SBT6.1 (S1P) and S2P, the N-terminal bZIP component is translocated to the nucleus, where it activates the expression and production of ER chaperones (PubMed:18156219, PubMed:18634751, PubMed:18849477, PubMed:20876872). Following ER stress, activates proteins involved in brassinosteroid (BR) signaling, which is required for stress acclimation and growth (PubMed:20876872).

Belongs to the bZIP family.

675 amino acids

MTESTSVVAPPPEIPNLNPSMFSESDLFSIPPLDPLFLSDSDPISMDAPISDLDFLLDDENGDFADFDFSFDNSDDFFDFDLSEPAVVIPEEIGNNRSNLDSSENRSGDGGLEGRSESVHSQVSSQGSKTFVSDTVDASSSPESSNHQKSSVSKRKKENGDSSGELRSCKYQKSDDKSVATNNEGDDDDDKRKLIRQIRNRESAQLSRLRKKQQTEELERKVKSMNATIAELNGKIAYVMAENVALRQQMAVASGAPPMNPYMAAPPLPYQWMPYPPYPVRGYGSQTPLVPIPKLNPKPVSSCRPKKAESKKNEGKSKLKKVASISFIGILFFVFLFGTLVPFMNVNFGGERGSFGGLSKYDGHRYYDEHKGRVLMVGDGSDVRRNSGISEGNIHSSRISHGERDSCGGVDYNAHPKVEGRPSSLSNASDPLFASLYVPRNDGLVKIDGNLIIHSVLASEKARGLGKKNITETVKTKEPDLTIPGALSSALAVPGVRGNAAMLPHSTALSSEGKRLHQWFHEGGSGPLMDYSMCTEVFQFDIAPGAIVPSSVSSISAEHLQNVTTHGKRMKNRRILEGLPVSLVASELNITGTQPNKDAQNKTFNGNTNKPTSSSSMVVSVLLDPREVVDSETDRVVPPNPKSLSRIFVVVLLDSVKYVTYSCVLPRSGLHLVAT

73.4 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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