8.A.82.2.3
Salt overly sensitive-3, SOS3 of 222 aas.  The salt stress-induced SALT-OVERLY-SENSITIVE (SOS) pathway in Arabidopsis thaliana involves the perception of a calcium signal by the SOS3 and SOS3-like CALCIUM-BINDING PROTEIN8 (SCaBP8) calcium sensors, which then interact with and activate the SOS2 protein kinase (9.B.106.3.4), forming a complex at the plasma membrane that activates the SOS1 Na⁺/H⁺ exchanger (2.A.36.7.6) (Lin et al. 2014Lin et al. 2014).