PAP1 — Nicotiana attenuata

Summary

A4A49_25264 (PAP1/PAP2) in coyote tobacco (Nicotiana attenuata) encodes a purple acid phosphatase (PAP) family protein with phosphoenolpyruvate phosphatase, acid phosphatase, and protein phosphatase activities, and binds ferric iron, manganese, cobalt, and zinc. It is associated with anthocyanin and flavonoid biosynthesis, pigmentation, phenylpropanoid and alkaloid metabolism, nicotine anabolism, regulation of carbohydrate metabolism, phloem transport, detoxification, and mitochondrial and chloroplast protein import. The gene is linked to leaf vein morphology, photosynthetic rate, chlorophyll content, phosphate utilization and starvation response, leaf senescence, pollen development, abiotic stress tolerance, and vascular development. Studies of related genes in other species connect the PAP family to anthocyanin pigmentation, phosphate deficiency tolerance, and seed oil yield.