EIN3 — Arabidopsis thaliana

Summary

AT3G20770 (EIN3) in Arabidopsis thaliana encodes a protein with an EIN3-like DNA-binding domain that also exhibits chromatin binding, and sequence-specific DNA binding. EIN3 is associated with ethylene metabolism, as well as responses to serotonin, gravity, and thermomorphogenesis. It has been linked to numerous agronomically relevant traits including grain size, seed protein content, fruit ripening, submergence tolerance, root hair density, branch angle, iron and phosphorus responses, flowering time, and aphid response. The protein localizes to the nucleus, cytoplasm, and chloroplast envelope, and participates in jasmonic acid signaling pathways. Studies of related EIN3 family members in other species connect the family to fruit firmness, carotenoid content, plant height, flower development, and resistance to late blight.