NCBI Accession #
NP_001031686.1
NCBI GenBank Nucleotide #
NM_001036609.1
NCBI Official Full Name
PPDK regulatory protein
NCBI Official Synonym Symbols
ATRP1; F7J7.150; F7J7_150; PPDK regulatory protein; PPDK REGULATORY PROTEIN
NCBI Protein Information
PPDK regulatory protein
NCBI Summary
Encodes a PPDK regulatory protein that has both protein kinase and protein phosphatase activities towards PPDK (pyruvate orthophosphate dikinase).
UniProt Synonym Gene Names
AtRP1; BFRP1; PPDK RP1; PPDK regulatory protein 1
UniProt Protein Name
Pyruvate, phosphate dikinase regulatory protein 1, chloroplastic
UniProt Synonym Protein Names
Bifunctional dikinase regulatory protein 1; AtRP1; BFRP1; Pyruvate, Pi dikinase regulatory protein 1; PPDK RP1; PPDK regulatory protein 1
UniProt Primary Accession #
O49562
UniProt Secondary Accession #
Q2V3G6; B9DFD8
UniProt Related Accession #
O49562
UniProt Comments
Bifunctional serine/threonine kinase and phosphorylase involved in the dark/light-mediated regulation of PPDK by catalyzing its phosphorylation/dephosphorylation. Dark/light-induced changes in stromal concentrations of the competing ADP and Pi substrates govern the direction of the reaction. In the dark, phosphorylates the catalytic intermediate of PPDK (PPDK-HisP), inactivating it. Light exposure induces the phosphorolysis reaction that reactivates PPDK. Unlike the kinase function which can utilize either Thr or Ser as target, the phosphorylase function has a strict substrate requirement for threonyl phosphate.