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Phospholipase D: a downstream effector of ARF in granulocytes - PubMed

  • ️Sat Jan 01 1994

. 1994 Jan 28;263(5146):523-6.

doi: 10.1126/science.8290961.

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Phospholipase D: a downstream effector of ARF in granulocytes

S Cockcroft et al. Science. 1994.

Abstract

Activation of the phospholipase D (PLD) pathway is a widespread response when cells are activated by agonists that bind receptors on the cell surface. A 16-kD cytosolic component can reconstitute guanosine triphosphate (GTP)-mediated activation of phospholipase D in HL60 cells depleted of their cytosol by permeabilization. This factor was purified and identified as two small GTP-binding proteins, ARF1 and ARF3. Recombinant ARF1 substituted for purified ARF proteins in the reconstitution assay. These results indicate that phospholipase D is a downstream effector of ARF1 and ARF3. The well-established role of ARF in vesicular traffic would suggest that alterations in lipid content by PLD are an important determinant in vesicular dynamics.

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