|Citation||Pavlopoulos, E., Pitsouli, C., Klueg, K.M., Muskavitch, M.A., Moschonas, N.K., Delidakis, C. (2001). neuralized encodes a peripheral membrane protein involved in delta signaling and endocytosis. Dev. Cell 1(6): 807--816. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||Activation of the Notch (N) receptor involves an intracellular proteolytic step triggered by shedding of the extracellular N domain (N-EC) upon ligand interaction. The ligand Dl has been proposed to effect this N-EC shedding by transendocytosing the latter into the signal-emitting cell. We find that Dl endocytosis and N signaling are greatly stimulated by expression of neuralized (neur). neur inactivation suppresses Dl endocytosis, while its overexpression enhances Dl endocytosis and Notch-dependent signaling. We show that neur encodes an intracellular peripheral membrane protein. Its C-terminal RING domain is necessary for Dl accumulation in endosomes, but may be dispensable for Dl signaling. The potent modulatory effect of Neur on Dl activity makes Neur a candidate for establishing signaling asymmetries within cellular equivalence groups.|
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|Language of Publication||English|
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