AUX1 — Arabidopsis thaliana

Summary

AT2G38120, known as AUX1 or AUXIN RESISTANT 1, encodes a protein with an amino acid permease transmembrane domain and is associated with auxin influx transmembrane transporter activity, auxin receptor activity, auxin binding, IP6 binding, amino acid permease activity, symporter activity, ubiquitin-protein transferase activity, and protein binding. The AUX1 protein localises to the plasma membrane, endosome, Golgi complex, and SCF complex, and is linked to auxin import into cells, tropism, lateral root branching, phyllotactic patterning, thermomorphogenesis, and vascular transport. In Arabidopsis thaliana, AUX1 is associated with leaf flattening, herbicide resistance, biomass production, ammonium tolerance, primary root length, root circumnutation, and root hair positioning. The gene is further connected to traits including root width, sodium content, IAA content, leaf margin serration, adventitious root number, root hair density, seed yield, phototropism, and aluminium response. Studies of related genes in other species link the family to stem width, fruit weight, and sugar content.