AAT1 — Capsicum annuum

Summary

CaAAT1 (T459_31226) on pepper chromosome 12 encodes a basic amino acid permease with L-lysine, L-glutamate, and amino acid transmembrane transporter activities, belonging to the CAT_C and AA/rel_permease1 families. The gene is associated with fruit development and ripening, response to wounding, and response to aluminum. It is linked to fruit ripening traits, cell membrane stability, photosynthetic rate, chlorophyll content, shoot fresh weight, and oxidative stress response. The encoded protein localizes to the membrane, plant-type vacuole, mitochondria, plasmalemma, and cytoplasm. Studies of related genes in other species connect the family to fruit flavor, volatile ester production, and tolerance to salt, drought, high-light, cadmium, and pathogens, as well as flowering time and plant biomass.