Confers resistance to the pathogenic oomycetes Phytophthora infestans and Phytophthora capsici, but confers susceptibility to the pathogenic bacteria Pseudomonas syringae. ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-[protein] ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-threonyl-[protein] Expressed at low levels in stems, leaves, flowers and siliques. Autophosphorylated on a Ser residue. Increased susceptibility to the oomycetes Phytophthora brassicae and Phytophthora capsici but enhanced resistance to the pathogenic bacteria Pseudomonas syringae. In the C-terminal section; belongs to the protein kinase superfamily. Ser/Thr protein kinase family. In the N-terminal section; belongs to the leguminous lectin family.