Protein PHOSPHATE STARVATION RESPONSE 2

UniProtKB accession:  B8B5N8

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Transcription factor involved in phosphate starvation signaling (By similarity). Binds to P1BS, an imperfect palindromic sequence 5'-GNATATNC-3', to promote the expression of inorganic phosphate (Pi) starvation-responsive genes (By similarity). Functionally redundant with PHR1 and PHR3 in regulating Pi starvation response and Pi homeostasis (By similarity). Involved in both systematic and local Pi-signaling pathways (By similarity). Regulates several Pi transporters (By similarity). PHR2 binding to DNA is repressed redundantly by SPX1, SPX2 and SPX4 in a PI-dependent manner (By similarity). The DNA-binding activity is also repressed by SPX4 (By similarity). Involved in root growth under Pi deprivation (By similarity). Involved in the modulation of Pi response and homeostasis together with RLI1; promotes RLI1 expression in response to nitrate availability, thus triggering the nitrate-induced phosphate response (NIPR) (By similarity).