PAP2 — Brassica juncea

Summary

BJUB04G31660S (symbol PAP2, also known as BjPUP1) encodes a purple acid phosphatase family protein with domains including PPA-like, PAPs_N and Metallo-depent_PP-like. The enzyme exhibits phosphoenolpyruvate phosphatase, acid phosphatase and protein phosphatase activities, binds ferric iron, manganese, zinc and other metals, and localises to the vacuolar lumen, plant-type cell wall, plasmodesmata and extracellular space. The gene is associated with pigmentation and anthocyanin anabolism, as well as cellular response to phosphate starvation. It 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 limitation adaptation, starvation response, utilisation and acquisition, as well as phosphorus uptake and anthocyanin content.