AAT — Phaseolus vulgaris

Summary

PHAVU_002G262100, designated PvAAT on French bean chromosome 2, encodes a pyridoxal phosphate-dependent aminotransferase with nicotianamine aminotransferase activity and multiple transaminase functions including L-aspartate:prephenate and L-glutamate:prephenate transaminase activities. The gene is associated with ureide anabolism, tyrosine breakdown, L-phenylalanine anabolism, ethylene biosynthesis, fruit ripening, embryo development ending in seed dormancy, and systemic acquired resistance via salicylic acid-mediated signaling. The product localizes to the amyloplast membrane and chloroplast stroma. Related genes in other species are linked to aromatic amino acid biosynthesis, nitrogen metabolism, and traits including seed protein content, drought tolerance, leaf relative water content, root length, and glufosinate sensitivity.