AAT1 — Nicotiana attenuata

Summary

A4A49_03715 (AAT1, also known as CAT1) in coyote tobacco (Nicotiana attenuata) on chromosome 7 encodes a basic amino acid permease with L-lysine and L-glutamate transmembrane transporter activity. The gene is associated with L-arginine import, basic amino acid transport, cellular homeostasis, detoxification, ethylene anabolism, auxin signaling, and response to aluminum. It is linked to fruit development, signal transduction, and localization to the plasma membrane, vacuole, mitochondria, and cytoplasm. Associations with photosynthetic traits include net photosynthetic rate, quantum yield, transpiration rate, stomatal resistance, and photochemical quenching. The gene is also connected to plant biomass, flowering time, and resistance to Pseudomonas syringae. Studies of related genes in other species link the family to salt and drought tolerance, disease tolerance, fruit ripening, volatile ester production, and stress responses including high-light, oxidative, and aluminum stress.