AAT — Nicotiana attenuata

Summary

A4A49_31080 (symbol AAT, also known as PAT or NaMEE17) in coyote tobacco (Nicotiana attenuata, chromosome scaffold00057) encodes a pyridoxal-phosphate-dependent aminotransferase of the AspAT/PAT-like family with multiple transaminase activities, including L-glutamate:prephenate, L-aspartate:prephenate, nicotianamine aminotransferase, and 1-aminocyclopropane-1-carboxylate synthase activities. The gene is associated with aromatic amino acid biosynthesis, tyrosine breakdown, L-phenylalanine anabolism, ethylene anabolism, fermentation, systemic acquired resistance via salicylic acid signaling, somatic embryogenesis, embryo development ending in seed dormancy, fruit ripening, cell death, and regeneration. Its product localises to the amyloplast membrane and chloroplast stroma. Related genes in other species link the family to carotenoid and chlorophyll content traits.