The ubiquitination code: a signalling problem

Ubiquitin is a highly versatile post-translational modification that controls virtually all types of cellular events. Over the past ten years we have learned that diverse forms of ubiquitin modifications and of ubiquitin binding modules co-exist in the cell, giving rise to complex networks of protei...

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Published in:Cell division Vol. 2; no. 1; p. 11
Main Authors: Woelk, Tanja, Sigismund, Sara, Penengo, Lorenza, Polo, Simona
Format: Journal Article
Language:English
Published: England BioMed Central 13.03.2007
BMC
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ISSN:1747-1028, 1747-1028
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Summary:Ubiquitin is a highly versatile post-translational modification that controls virtually all types of cellular events. Over the past ten years we have learned that diverse forms of ubiquitin modifications and of ubiquitin binding modules co-exist in the cell, giving rise to complex networks of protein:protein interactions. A central problem that continues to puzzle ubiquitinologists is how cells translate this myriad of stimuli into highly specific responses. This is a classical signalling problem. Here, we draw parallels with the phosphorylation signalling pathway and we discuss the expanding repertoire of ubiquitin signals, signal tranducers and signalling-regulated E3 enzymes. We examine recent advances in the field, including a new mechanism of regulation of E3 ligases that relies on ubiquitination.
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ISSN:1747-1028
1747-1028
DOI:10.1186/1747-1028-2-11