Polyubiquitinated TRAF6 (as E3 ubiquitin ligase) generates free K63 -linked polyubiquitin chains that non-covalently associate with ubiquitin receptors of TAB2/TAB3 regulatory proteins of the TAK1 complex, leading to the activation of the TAK1 kinase.
Adhikari, A, Zeng, W, Chen, ZJ, Pineda, G, Sun, L, Chen, X, Jiang, X, Xia, ZP
ubiquitin-protein transferase activity of p-IRAK2:K63-linked pUb oligo-TRAF6 [plasma membrane]
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