BOR1 — Arabidopsis thaliana

Summary

AT2G47160 (BOR1) in Arabidopsis thaliana encodes a protein with borate efflux transmembrane transporter activity, inorganic anion exchanger activity, borate channel activity, SUMO transferase activity, SUMO binding, kinase binding, and protein binding, belonging to the bicarbonate transporter-like family. The gene is associated with boron transport, boron deficiency tolerance, and boron efficiency, as well as disease resistance and water retention. BOR1 has been linked to borate membrane transport, cellular response to boron levels, and anion transmembrane transport, along with processes including transcytosis, endocytosis, vacuolar transport, auxin transport, and meristem development. The protein localizes to the plasma membrane, endosome membrane, vacuolar membrane, and mitochondria. Associations with traits include boron content, boron sensitivity, seed yield, leaf growth, root meristem development, stomatal opening, and abscisic acid sensitivity. Studies of related genes in other species link the family to boron tolerance and plant growth.