ACT — Solanum tuberosum

Summary

PGSC0003DMG400003985 (ACT) on potato chromosome 11 encodes an actin family protein with an actin/actin-like conserved sequence and ATPase nucleotide-binding domain. The product exhibits actin, profilin, phospholipid, F-actin, protein kinase, and phosphorylated amino acid binding, along with structural cytoskeletal constituent, phosphatase, hydrolase, transglycosidase, and copper-binding activities. It localizes to the actin cytoskeleton, Golgi membrane, chloroplast envelope, and endosome. The gene is associated with cholesterol efflux, response to biotic stimulus, downregulation of photosynthesis, actin filament stabilization, and carbon catabolite repression. Traits linked to ACT include seed morphology, potassium concentration, vegetative vigor, leaf area, water stress response, hydrogen peroxide content, starch content, seed yield, root hair length, nitrate uptake, and aphid response. Studies of related genes in other species connect the family to drought resistance, powdery mildew susceptibility, hypersensitive response, and actin cytoskeletal organization.