期刊
TRENDS IN BIOCHEMICAL SCIENCES
卷 26, 期 6, 页码 347-350出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/S0968-0004(01)01835-7
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Ubiquitination generally serves as a signal for targeting cytoplasmic and nuclear proteins to the proteasome for subsequent degradation. Recently, evidence has accumulated indicating that ubiquitination also plays an important role in targeting integral membrane proteins for degradation by the lytic vacuole or the lysosome. This article describes a conserved protein motif, based on a sequence of the proteasomal component Rpn10/S5a, that is known to recognize ubiquitin. The presence of this motif in Eps15, Epsin and HRS, proteins involved in ligand-activated receptor endocytosis and degradation, suggest a more general role in ubiquitin recognition.
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