AAT — Brassica oleracea var. botrytis

Summary

BoAAT (BOLND125_C08P052590.1) on cauliflower chromosome 8 encodes a pyridoxal phosphate-dependent aminotransferase belonging to the AspAT/PAT-like family, with experimentally annotated transaminase activities including L-glutamate:prephenate, L-aspartate:prephenate, nicotianamine, L-tyrosine-2-oxoglutarate, L-aspartate:2-oxoglutarate, and 1-aminocyclopropane-1-carboxylate synthase activities. The gene is associated with aromatic amino acid biosynthesis, L-phenylalanine anabolism, tyrosine breakdown, ethylene anabolism, amino acid metabolic processes, and proteolysis. It is linked to somatic embryogenesis, embryogenesis, regeneration, cell division, fruit ripening, systemic acquired resistance via salicylic acid signaling, detoxification, and response to DTT. Localisation evidence links the product to the amyloplast membrane and chloroplast stroma. The gene is also associated with protein content and callus induction traits. Studies of related genes in other species link the family to nitrogen metabolism and root morphology.