NCBI Accession #
NP_188985.2
NCBI GenBank Nucleotide #
NM_113246.5
NCBI Official Full Name
phosphate 1
NCBI Official Symbol
PHO1
NCBI Official Synonym Symbols
ARABIDOPSIS PHOSPHATE 1; ATPHO1; phosphate 1
NCBI Protein Information
phosphate 1
NCBI Summary
mutant is deficient in the transfer of phosphate from root epidermal and cortical cells to the xylem. encodes protein with the mainly hydrophilic N-terminal and the C-terminal containing 6 potential membrane-spanning domains.
UniProt Synonym Gene Names
AtPHO1
UniProt Protein Name
Phosphate transporter PHO1
UniProt Synonym Protein Names
Protein PHO1
UniProt Primary Accession #
Q8S403
UniProt Secondary Accession #
Q9LW54
UniProt Related Accession #
Q8S403
UniProt Comments
Inositol polyphosphate sensor that associates with transcription factors to regulate inorganic phosphate (Pi) starvation responses (PubMed:27080106). Probably acts by binding inositol polyphosphate via its SPX domain (PubMed:27080106). Acts as a Pi exporter, mediating efflux of Pi out of cells (PubMed:21309867, PubMed:22449068). Transfers Pi from the epidermal and cortical cells to the root xylem vessels (PubMed:11971143). Involved in the transfer of Pi from roots to shoots (PubMed:11971143, PubMed:17461783). Involved in abscisic acid (ABA) induction of stomatal closure and ABA repression of stomatal opening (PubMed:22612335).