PAP1 — Nicotiana attenuata

Summary

A4A49_02196 (PAP1, also known as PAP20) in coyote tobacco (Nicotiana attenuata) on chromosome 7 encodes a purple acid phosphatase with phosphoenolpyruvate phosphatase activity, acid phosphatase activity, and protein phosphatase activity, and binds ferric iron, manganese, cobalt, and zinc. The gene is associated with anthocyanin and flavonoid biosynthesis, pigmentation, phenylpropanoid metabolism, alkaloid and nicotine anabolism, secondary metabolism, regulation of carbohydrate metabolism, phloem transport, detoxification, mitochondrial RNA modification, and protein import into chloroplasts and mitochondria. It has been 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 family to phosphate limitation tolerance, anthocyanin accumulation, and seed oil yield.