TRAF2 regulates activation of NF-kappa-B and JNK and plays a central role in the regulation of cell survival and apoptosis [1,2]. It has E3-ubiquitin protein ligase activity and promotes K63-linked ubiquitination of target proteins. It consists of an N-terminal domain with RING (Pfam:PF00097) and several zinc fingers, and a C-terminal TRAF domain that comprises a coiled-coil (Pfam:PF16673) and a TRAF-C domain [1]. This entry represents the second beta-beta-alpha zinc finger.

1: Structural basis for the lack of E2 interaction in the RING domain of TRAF2. Yin Q, Lamothe B, Darnay BG, Wu H; Biochemistry. 2009;48:10558-10567. PMID:19810754

2: TRAF2 phosphorylation modulates tumor necrosis factor alpha-induced gene expression and cell resistance to apoptosis. Blackwell K, Zhang L, Thomas GS, Sun S, Nakano H, Habelhah H; Mol Cell Biol. 2009;29:303-314. PMID:18981220