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S2P

Gene
S2P
Protein
Membrane-bound transcription factor site-2 protease homolog
Organism
Arabidopsis thaliana
Length
513 amino acids
Function
Metalloprotease that catalyzes the second step (site-2 cleavage) in the proteolytic activation of various factors, after site-1 cleavage. Part of a regulated intramembrane proteolysis (RIP) cascade. After ER stress, cleaves BZIP17 and BZIP28 proteins which functions as stress sensors and transducers in ER stress signaling pathway. The N-terminal bZIP component is translocated to the nucleus, where it activates the expression and production of ER chaperones, as well as proteins involved in brassinosteroid (BR) signaling, which is required for stress acclimation and growth.
Similarity
Belongs to the peptidase M50A family.
Mass
56.824 kDa
Sequence
MEISGRRMRRFRMRFRRDHLTGGENIENEASCCYCDLKISNFNEPIFRLGRRFSGVLKVWFSIGLGFGVASLILVTVFLLLQFHSNPLFSNRLTSAVFGFSPSTRVSLSGIAYVLVSTVITVSVHELGHALAAASEGIQMEYIAVFIAAIFPGGLVAFDNDVLQSLPSFNALRIYCAGIWHNAVFCALCVFALFLLPVMLSPFYKHGESLTVVDVPSVSPLFGYLSPGDVIVSLDGIQVHKPSEWLELAAILDKENSKTSNGSLYLGGSRRFHHGKGYCVPISLIEEGYKGKMVENQFVCPGDLTAFRTMPCSNAAIREVSVCLDAKDIVKLQKCGDGWVTTSDTDNQSDCVCPQGDLCLQAMQSPGVLWTEITYKRTSSQDCSRLGLDFNTSNCLGTFVFVGDLIAMSHSVHLTAYQPRWLFNFFGKSFPNILERSLTCTFHVSLALVLLNSLPVYYLDGESILESSLQSFTWLSPRKKKKALQVCLVGGSLLSFLAFFRIFLLGLPLSRRW