BK-PP2A

• Symbol: BK-PP2A
• MSU: LOC_Os05g48150
• RAPdb: Os05g0555100

• Mutual Regulation of Receptor-Like Kinase SIT1 and B'魏-PP2A Shapes the Early Response of Rice to Salt Stress., 2019, Plant Cell.

Genbank accession number

• Together, these results suggest that B’κ-PP2A dephosphorylates SIT1 in planta under normal conditions and at the onset of salt exposure to maintain SIT1 phosphorylation at a low level, which consequently suppresses plant salt sensitivity.
• In this way, SIT1 activity is decreased to a low level by salt, and MAPK signaling is limited to benefit plant growth. An increase in B’-PP2A holoenzyme may target other substrates to positively regulate salt tolerance.