Roles of the TRAF6 and Pellino E3 ligases in MyD88 and RANKL signaling [Immunology and Inflammation]

It is widely accepted that the essential role of TRAF6 in vivo is to generate the Lys63-linked ubiquitin (K63-Ub) chains needed to activate the "master" protein kinase TAK1. Here, we report that TRAF6 E3 ligase activity contributes to but is not essential for the IL-1–dependent formation of K63-Ub chains, TAK1...

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