ACT3 — Solanum lycopersicum

Summary

SOLYC03G078400.3 (ACT3) on tomato chromosome 3 encodes an actin family protein with an actin/actin-like conserved domain and ATPase nucleotide-binding domain. The product exhibits actin binding, profilin binding, phospholipid binding, and structural constituent of cytoskeleton activities, along with protein phosphatase and hydrolase activities. ACT3 is associated with the actin cytoskeleton, Arp2/3 protein complex, and Golgi membrane. The gene is linked to carotenoid breakdown, actin filament stabilization, cell tip growth, and mitochondrial transcription. Associations with traits include seed morphology, vegetative vigor, leaf area, water stress response, nitrogen sensitivity, seed yield, net photosynthetic rate, root hair length, and aphid response. Studies of related genes in other species connect the family to drought resistance, powdery mildew susceptibility, and hypersensitive response.