PAP2 — Brassica juncea

Summary

BJUA09G61390S (symbol PAP2, preferred name BjPUP1) encodes a purple acid phosphatase (PAP) family protein with phosphoenolpyruvate phosphatase, acid phosphatase, and protein phosphatase activities, and binds ferric iron, manganese, and zinc. The gene is associated with pigmentation and anthocyanin anabolism, and with cellular response to phosphate starvation. Its product localises to the vacuolar lumen, plant-type cell wall, plasmodesmata, and extracellular space. BjPUP1 is linked to flower and petal colour, and to phosphate deficiency tolerance, adaptation, and limitation tolerance. Studies of related genes in other species connect the family to phosphate starvation response, phosphate acquisition, and utilisation, as well as to phosphorus uptake and anthocyanin content.