LC-MS/MS identification of interactors of the plant natriuretic peptide, AtPNP-A

Plant natriuretic peptides (PNPs) comprise a class of systemically mobile molecules functioning as hormonal regulators of ion and fluid balance. Since the molecular mode of action of PNPs remains unclear, a large-scale protein-protein interaction study has been undertaken to identify interactors of the model PNP present in Arabidopsis thaliana, termed AtPNP-A.