AAT — Daucus carota subsp. sativus

Summary

DCAR_012361 (symbol AAT, preferred name DcAAT) on carrot chromosome 3 encodes a pyridoxal phosphate-dependent aminotransferase belonging to class I/II, with multiple transaminase activities including kynurenine-oxoglutarate, histidinol-phosphate, LL-diaminopimelate, and prephenate transaminase, as well as 1-aminocyclopropane-1-carboxylate synthase activity. The gene is associated with histidine biosynthesis, tyrosine catabolism, L-phenylalanine biosynthesis, ethylene production, systemic acquired resistance via salicylic acid signaling, somatic embryogenesis, regeneration, and fruit ripening. Its product localizes to the cytoplasm. Related genes in other species link the family to EC numbers 2.6.1.9 and 2.6.1.83, among others.