PAP1 — Nicotiana attenuata

Summary

A4A49_01466 (PAP1/PAP2) on chromosome 3 of coyote tobacco 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 metabolism, pigmentation, phenylpropanoid and alkaloid anabolism, nicotine anabolism, secondary metabolism, detoxification, phloem transport, mitochondrial RNA modification, and chloroplast stroma protein import. The gene is linked to leaf vein morphology, photosynthetic rate, chlorophyll content, phosphate utilization and starvation response, anthocyanin biosynthesis, leaf senescence, pollen development, abiotic stress tolerance, and vascular development. Studies of related genes in other species connect the family to phosphate limitation tolerance, anthocyanin pigmentation, phenylpropanoid biosynthesis, and plant growth.