PAT — Daucus carota subsp. sativus

Summary

DCAR_016232 (PAT, DcPAT) on carrot chromosome 5 encodes an aminotransferase class I/II domain-containing protein with pyridoxal phosphate-dependent transaminase activity, including methionine-oxo-acid, LL-diaminopimelate, and nicotianamine aminotransferase activities, as well as 1-aminocyclopropane-1-carboxylate synthase activity. The gene is associated with inhibition of IAA biosynthetic process, negative regulation of ethylene biosynthetic process, tyrosine breakdown, methionine metabolism, and L-phenylalanine anabolism. It is also linked to systemic acquired resistance, salicylic acid mediated signaling pathway, shade avoidance, defense response, and fruit ripening. The encoded protein localizes to mitochondria and cytosol. Studies of related genes in other species link the family to chilling stress response, harvest index, and amino acid and sugar content.