Among the several signalling pathways regulated by ubiquitin and ubiquitin-like proteins, the one activating NF-κB (nuclear factor κB) is certainly one of the best characterized. The regulation of the activity of this transcription factor by members of the ubiquitin family occurs at various levels, imposing overlapping controls of security of intriguing complexity. The formation of active macromolecular complexes such as the IKK [IκB (inhibitory κB) kinase] complex is tightly regulated by these post-translational modifications probably due to the fact that many signals converge on this signal's roundabout. An additional, very important level of NF-κB control occurs through the partial or total proteolysis of precursor and inhibitor molecules exerted by the ubiquitin–proteasome pathway. Regulation at this level implicates various conjugating and de-conjugating activities for ubiquitin, SUMO (small ubiquitin-related modifier) and NEDD8. Here, we summarize some of these events and underline the importance of the interconnecting ubiquitin and ubiquitin-like conjugating pathways that determine the status of the activity of this critical transcription factor.
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October 2008
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Conference Article|
September 19 2008
Innate link between NF-κB activity and ubiquitin-like modifiers
Valérie Lang;
Valérie Lang
1Ubiquitin-Like Molecules and Cancer Laboratory, Proteomics Unit, CIC bioGUNE, CIBERehd, Bizkaia Technology Park, Building 801A, 48160 Derio, Spain
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Manuel S. Rodríguez
Manuel S. Rodríguez
1
1Ubiquitin-Like Molecules and Cancer Laboratory, Proteomics Unit, CIC bioGUNE, CIBERehd, Bizkaia Technology Park, Building 801A, 48160 Derio, Spain
1To whom correspondence should be addressed (email [email protected]).
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Publisher: Portland Press Ltd
Received:
March 10 2008
Online ISSN: 1470-8752
Print ISSN: 0300-5127
© The Authors Journal compilation © 2008 Biochemical Society
2008
Biochem Soc Trans (2008) 36 (5): 853–857.
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Received:
March 10 2008
Citation
Valérie Lang, Manuel S. Rodríguez; Innate link between NF-κB activity and ubiquitin-like modifiers. Biochem Soc Trans 1 October 2008; 36 (5): 853–857. doi: https://doi.org/10.1042/BST0360853
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