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Posttranslational modification of proteins with polyubiquitin occurs in diverse signaling pathways and is tightly regulated to ensure cellular homeostasis. Studies employing ubiquitin mutants suggest that the fate of polyubiquitinated proteins is determined by which lysine within ubiquitin is linked to the C terminus of an adjacent ubiquitin. We have(More)
Inactivation of the TNFAIP3 gene, encoding the A20 protein, is associated with critical inflammatory diseases including multiple sclerosis, rheumatoid arthritis and Crohn's disease. However, the role of A20 in attenuating inflammatory signalling is unclear owing to paradoxical in vitro and in vivo findings. Here we utilize genetically engineered mice(More)
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