PHR1 — Arabidopsis thaliana

Summary

AT4G28610, known as PHR1 (Phosphate Starvation Response 1) in Arabidopsis thaliana, encodes a protein with Myb and SANT/Myb domains, and is associated with DNA binding, DNA binding transcription factor activity, transcription coactivator activity, SUMO transferase activity, and SUMO binding. This nuclear-localized protein is linked to phosphate response, phosphate homeostasis, hypoxia response, phosphorus remobilization, phosphate acquisition, photoreactivation DNA repair, UV-damaged DNA repair, and phosphate absorption. PHR1 is associated with processes including response to arsenite ion, response to lipid, regulation of ion membrane transport, stem cell proliferation, structural organization, sulfate homeostasis, cellular response to high light intensity, positive regulation of cellular response to phosphate starvation, phospholipid breakdown, mating, regulation of nitrate assimilation, phosphate metabolism, galactolipid anabolism, downregulation of systemic acquired resistance, nitrate import, regulation of salicylic acid metabolic process, RNA breakdown, and flavonoid metabolism. It has been associated with traits including copper concentration, acid phosphatase activity, germination ratio, copper sensitivity, phosphate content, leaf necrosis, nitrate content, phosphorus response, carbohydrate content, seed protein content, plant nutrient response, root hair density, shoot system elongation rate, seed set percent, whole plant size, amino acid content, light response, plant male sterility, aluminum response, phosphorus uptake, UV-B light sensitivity, gibberellic acid sensitivity, adventitious root