Enhanced degradation of EGF receptors by a sorting nexin, SNX1.
The vectorial movement of proteins requires specific recognition by components of the vesicular trafficking machinery. A protein, sorting nexin-1 (SNX1), was identified in a human cell line that bound to a region of the epidermal growth factor receptor (EGFR) containing the lysosomal targeting code. SNX1 contains a region of homology to a yeast vacuolar sorting protein, and overexpression of SNX1 decreased the amount of EGFR on the cell surface as a result of enhanced rates of constitutive and ligand-induced degradation. Thus, SNX1 is likely to play a role in sorting EGFR to lysosomes.[1]References
- Enhanced degradation of EGF receptors by a sorting nexin, SNX1. Kurten, R.C., Cadena, D.L., Gill, G.N. Science (1996) [Pubmed]
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