AAT1 — Nicotiana attenuata

Summary

A4A49_32423 (AAT1, also known as CAT1) in coyote tobacco (Nicotiana attenuata) encodes a basic amino acid permease with L-lysine, L-glutamate and basic amino acid transmembrane transporter activities. The gene is associated with L-arginine import, basic amino acid transport, cellular homeostasis, detoxification, ethylene anabolism, auxin signaling, fruit development, and response to aluminum. Its product localizes to the membrane, plant-type vacuole, mitochondria, plasmalemma, cytoplasm, and intracellular membrane-bounded organelles. AAT1 is associated with net photosynthetic rate, quantum yield, transpiration rate, stomatal resistance, and photochemical quenching, as well as plant biomass, flowering time, and resistance to Pseudomonas syringae. Studies of related genes in other species connect the family to salt, drought, oxidative, high-light, cadmium, and aluminum stress tolerance, viral and pathogen resistance, fruit ripening, volatile ester production, and circadian rhythm.