Literature summary for 7.3.2.1 extracted from

Yang, Z.; Yang, J.; Wang, Y.; Wang, F.; Mao, W.; He, Q.; Xu, J.; Wu, Z.; Mao, C.
Protein phosphatase95 regulates phosphate homeostasis by affecting phosphate transporter trafficking in rice (2020), Plant Cell, 32, 740-757.

Search for more literature for 7.3.2.1

Localization

Localization	Comment	Organism	GeneOntology No.	Textmining
endoplasmic reticulum	both isoforms PT2-GFP and PT8-GFP are retained in the ER when protoplasts are treated with protein phosphatase inhibitor cocktail II	Oryza sativa Japonica Group	5783	-
plasma membrane	-	Oryza sativa Japonica Group	5886	-

Organism

Organism	UniProt	Comment	Textmining
Oryza sativa Japonica Group	-	-	-

Posttranslational Modification

Posttranslational Modification	Comment	Organism
phosphoprotein	protein phosphatase PP95 dephosphorylates PT8 at Ser517	Oryza sativa Japonica Group

Synonyms

Synonyms	Comment	Organism
PT2	-	Oryza sativa Japonica Group
PT8	-	Oryza sativa Japonica Group

General Information

General Information	Comment	Organism
physiological function	phosphate transporters PT2 and PT8 interact with protein phosphatase type 2C PP95. PP95 dephosphorylates PT8 at Ser517. Rice plants overexpressing PP95 show reduced PT8 phosphorylation and promote PT2 and PT8 trafficking from the ER to the plasma membrane, resulting in phosphate accumulation. Under phosphate-sufficient conditions, phosphate levels are lower in young leaves and higher in old leaves in PP95 mutants than in those of the wild-type, while the overall shoot phosphate levels are the same in the mutant and the wild-type. In the wild-type, PP95 accumulates under phosphate starvation but is rapidly degraded under phosphate-sufficient conditions	Oryza sativa Japonica Group

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Release 2026.1 (March 2026)