Cited by 367

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Distinct monoubiquitin signals in receptor endocytosis

Haglund, K·2003·Trends in Biochemical Sciences

Abstract

Numerous cellular proteins are post-translationally modified by the addition of the small modifier protein ubiquitin (Ub). The functional consequences of the type of ubiquitination vary, such that polyubiquitinated proteins are targeted for degradation by the proteasome, whereas monoubiquitination is implicated in other cellular functions, including endocytic trafficking and DNA repair. The monoubiquitination of trafficking cargoes, such as receptors and associated proteins, as well as of endocytic accessory Ub-binding proteins, raises the question of the precise function of monoubiquitin signals in the endocytic route. Recent biochemical and genetic evidence shows that multiple monoubiquitination of epidermal growth factor and platelet-derived growth factor receptors provides trafficking and sorting tags that ensure receptor endocytosis and degradation, whereas monoubiquitination of accessory proteins might play a role in regulating their function as Ub-receptors in the endosome.

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Crossref · 10.1016/j.tibs.2003.09.005

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Metadata

Authors
Haglund, K.
Venue
Trends in Biochemical Sciences
Publisher
Elsevier BV
Published
2003-11
Volume
28
Issue
11
Pages
598-604
ISSN
0968-0004
Cited by
367
References
0
Language
en

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