AAC1 — Oryza sativa Japonica

Summary

Rice gene AAC1 (also known as ACT1) on chromosome 3 encodes an actin protein that is a structural constituent of the cytoskeleton and exhibits actin binding, profilin binding, phospholipid binding, protein kinase activator activity, and protein phosphatase activity. It is associated with actin filament-based processes including actin gel formation, depolymerization, stabilization, and barbed-end filament capping, as well as cytoskeleton organization, stem cell proliferation, and regulation of triglyceride catabolic processes. The gene has been linked to numerous agronomically relevant traits including seed morphology, root system morphology, vegetative vigor, leaf area, seedling vigor, grain filling period, seed yield, seed longevity, cadmium and iron concentration, water stress response, osmotic sensitivity, nitrogen and potassium sensitivity, shoot growth angle, and vegetative to reproductive phase transition. It localizes to the actin cytoskeleton, SCAR complex, Golgi membrane, and Cul4-RING E3 ubiquitin ligase complex.