ACT8 — Arabidopsis thaliana

Summary

AT1G49240 (ACT8, also known as FIZ1) on chromosome 1 of Arabidopsis thaliana encodes an actin protein that is a structural constituent of the cytoskeleton and possesses actin, profilin, phospholipid, F-actin, and protein kinase binding activities, as well as hydrolase and phosphatase activities. ACT8 is associated with numerous biological processes including actin filament stabilization and capping, cytoplasmic streaming, nuclear transport, prophase, arginine breakdown, polyphosphate metabolism, regulation of wax anabolism, dark adaptation, and xenobiotic metabolism. It localizes to the actin cytoskeleton, Arp2/3 protein complex, Golgi membrane, and endosome. The gene is linked to a wide range of traits including seed morphology and yield, leaf area, vegetative vigor, root hair length, shoot growth angle, water stress response, nitrogen and potassium sensitivity, aphid response, and powdery mildew disease response.