PHO1 — Oryza sativa Japonica
Summary
Os02g0809800 (PHO1, also known as SHB1) encodes a protein containing SPX and EXS domains, with annotated molecular functions including inositol hexakisphosphate binding, phosphate transmembrane transporter activity, and ubiquitin-protein transferase activity. The gene is associated with phosphate homeostasis and transport, including regulation of phosphate membrane transport, intracellular Pi homeostasis, and cellular response to phosphate starvation. It is linked to seed development and size regulation, endosperm development, starch metabolism, and grain yield. Associations also include panicle length, flowering time, leaf senescence, low temperature stress response, and red/far-red light signaling. The protein localizes to multiple cellular compartments including the plasma membrane, nucleus, endoplasmic reticulum, and Golgi. Studies of related genes in other species link the family to phosphate loading to the xylem and arsenic accumulation.
Annotations
- Chromosome
- 2
- Related genes
- PHO1, T9I1.12, PHO2, PHO1-H3, T18E12.7, T18E12.8, T18E12.9, AT1G26730
- GO terms
- homeostasis, NO storage, Endosome, Phosphate Transmembrane Transporter Activity, Phosphate Ion Transport, ER, Golgi complex, Regulation Of Gene Expression
- Publications
- 12969422, 17172353, 16132859, 17085508, 23858430, 26556605, 20521954, 18631293
- Traits
- fungal pathogen resistance, phosphorus utilization, phosphate acquisition, phosphate uptake, phosphate accumulation, phosphate translocation, No Observable Growth or Phosphate Transport Defects, Reduced Growth and Impaired Root-to-Shoot Phosphate Transfer