Notch receptors are clustered and trans-endocytosed by Delta ligand cells. Confocal micrograph of a Delta expressing cell (left) interacting with a Notch expressing cell (right). Following interaction with Delta (blue), cell surface Notch (yellow) is clustered at cell-cell interfaces. Notch extracellular domain is detected within Delta cells (green) indicative of trans-endocytosis. Endocytosis of ligand while bound to Notch may produce a force sufficient to pull Notch apart and activate signaling.
 
 
 
 
 
 

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Volume 3 Issue 2 February 2002
Visualization of actin dynamics during macropinocytosis and exocytosis
E Lee and DA Knecht

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FIG1MACR.MOV		 View movie
FIG3POST.MOV		 View movie
FIG4SECR.MOV

 

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