Remorin, a Solanaceae Protein Resident in Membrane Rafts and Plasmodesmata, ImpairsPotato virus XMovement
Top Cited Papers
- 1 May 2009
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Cell
- Vol. 21 (5), 1541-1555
- https://doi.org/10.1105/tpc.108.064279
Abstract
Remorins (REMs) are proteins of unknown function specific to vascular plants. We have used imaging and biochemical approaches and in situ labeling to demonstrate that REM clusters at plasmodesmata and in similar to 70-nm membrane domains, similar to lipid rafts, in the cytosolic leaflet of the plasma membrane. From a manipulation of REM levels in transgenic tomato (Solanum lycopersicum) plants, we show that Potato virus X (PVX) movement is inversely related to REM accumulation. We show that REM can interact physically with the movement protein TRIPLE GENE BLOCK PROTEIN1 from PVX. Based on the localization of REM and its impact on virus macromolecular trafficking, we discuss the potential for lipid rafts to act as functional components in plasmodesmata and the plasma membrane.Keywords
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