AAT — Phaseolus vulgaris

Summary

PHAVU_001G250500 (PvAAT) on French bean chromosome 1 encodes a pyridoxal phosphate-dependent aminotransferase with nicotianamine aminotransferase, L-tyrosine-2-oxoglutarate transaminase, L-aspartate:prephenate transaminase, L-glutamate:prephenate transaminase, L-aspartate:2-oxoglutarate transaminase, and 1-aminocyclopropane-1-carboxylate synthase activities. The gene is associated with ureide anabolism, tyrosine breakdown, L-phenylalanine anabolism, ethylene anabolism, systemic acquired resistance via salicylic acid-mediated signaling, and embryo development ending in seed dormancy. Its product localizes to the amyloplast membrane and chloroplast stroma. The gene is also linked to aromatic amino acid biosynthesis. Studies of related genes in other species connect the family to seed protein content, amino acid content, drought tolerance, root morphology, and glufosinate sensitivity.