CUAO — Cicer arietinum

Summary

LOC101507416 (symbol CUAO, CaCUAO) on chickpea chromosome 5 encodes a copper amine oxidase, with experimentally annotated putrescine oxidase, diamine oxidase, aliphatic amine oxidase, and primary methylamine oxidase activities, copper and quinone binding, and protein homodimerization activity. The gene is associated with putrescine breakdown, regulation of reactive oxygen species anabolism, amine and alkaloid metabolism, and nicotine anabolism. It is associated with cell maturation, development, differentiation, growth, de-etiolation, seedling development, wound healing and response to wounding, stomatal movement, and responses to jasmonic acid and auxin. The product localizes to the trans-Golgi network, endosome, plant-type vacuole, Golgi complex, extracellular space, and nucleus. Studies of related genes in other species link the copper amine oxidase family to salt response, disease tolerance, photochemical quenching, and defective ABA-induced stomatal closure.