Interacts with At3g17950, At3g27210 and At5g05190. Expressed in root tips, lateral root primordia, stipules, and floral organ abscission zones. By wounding. Rapid but transient down-regulation by salicylic acid treatment or pathogen infection. The protein kinase domain is predicted to be catalytically inactive. Autophosphorylation. No visible phenotype. Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. Autophosphorylation is proposed although the protein kinase domain is predicted to be catalytically inactive.