AAT1 — Capsicum annuum

Summary

CaAAT1 (T459_06015) on pepper chromosome 2 encodes a protein with a CAT_C domain and an AA/rel_permease1 domain, possessing L-lysine, L-glutamate, basic amino acid and general amino acid transmembrane transporter activities. It is associated with L-arginine import, basic amino acid transport, fruit development and ripening, response to wounding, and response to aluminum. The protein localises to the membrane, plasma membrane, plant-type vacuole, mitochondria, cytoplasm and intracellular membrane-bounded organelles. CaAAT1 is linked to cell membrane stability, shoot fresh weight, photosynthetic rate and chlorophyll content, as well as plant biomass, flowering time, resistance to Pseudomonas syringae, and amino acid and glutamine transport. Studies of related genes in other species connect the family to fruit flavor and ripening traits, drought and salt tolerance, disease tolerance, and responses to oxidative, high-light, cadmium and aluminum stress.