期刊
FEBS LETTERS
卷 584, 期 21, 页码 4475-4480出版社
WILEY
DOI: 10.1016/j.febslet.2010.10.011
关键词
Cell adhesion molecule L1; Intracellular trafficking; Ubiquitination; Lysosomal degradation
The cell adhesion molecule L1 is implicated in several processes in the developing and adult nervous system. Intracellular trafficking of L1 is important for cell migration, neurite growth and adhesion. We demonstrate here that L1 is ubiquitinated at the plasma membrane and in early endosomes. Mono-ubiquitination regulates L1 intracellular trafficking by enhancing its lysosomal degradation. We propose that L1's ubiquitination might be an additional mechanism to control its re-appearance at the cell surface thereby influencing processes like neurite growth and cell adhesion. (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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