0000000001251376

AUTHOR

Christoph Nehls

showing 1 related works from this author

Restoration of Clostridium difficile toxin-B-inhibited phospholipase D by phosphatidylinositol 4,5-bisphosphate.

1996

Receptor signalling to phospholipase D (PLD) in human embryonic kidney (HEK) cells stably expressing the m3 muscarinic acetylcholine receptor apparently involves Rho proteins. Since phosphatidylinositol 4,5-bisphosphate [PtdIns(4,5)P2] has been recognized as an essential cofactor for PLD activity and since activated Rho proteins have been reported to stimulate the synthesis of PtdIns(4,5)P2, we studied whether in HEK cells PLD activity is regulated by PtdIns(4,5)P2 and, in particular, whether PtdIns(4,5)P2 can restore PLD activity inhibited by Clostridium difficile toxin B, which inactivates Rho proteins. Addition of MgATP to permeabilized HEK cells increased basal PLD activity and potentia…

Phosphatidylinositol 45-DiphosphateGTP'Bacterial ToxinsClostridium difficile toxin BBiologyBiochemistryCell Linechemistry.chemical_compoundBacterial ProteinsGTP-Binding ProteinsPhosphatidylcholineRhoB GTP-Binding ProteinPhospholipase DHumansPhosphatidylinositolEnzyme InhibitorsrhoB GTP-Binding ProteinPhospholipase DClostridioides difficileHEK 293 cellsCell MembraneMembrane ProteinsReceptors MuscarinicCell biologyEnzyme Activationenzymes and coenzymes (carbohydrates)chemistryPhosphatidylinositol 45-bisphosphateGuanosine 5'-O-(3-Thiotriphosphate)lipids (amino acids peptides and proteins)European journal of biochemistry
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