Baculoviral IAP repeat-containing proteins, also known as c-IAPs, function as ubiquitin E3 ligases that mediate the ubiquitination of the substrates involved in apoptosis, nuclear factor-kappaB (NF-kappaB) signaling, and oncogenesis [1-3]. This entry represents the UBA domain of BIRC2/3/4/8 from mammals and BIRC7 from Xenopus tropicalis [1-3].

1: Backbone and side-chain 1H, 13C and 15N assignments of the ubiquitin-associated domain of human X-linked inhibitor of apoptosis protein. Hui SK, Tse MK, Yang Y, Wong BC, Sze KH; Biomol NMR Assign. 2010;4:13-15. PMID:19916060

2: Antagonists induce a conformational change in cIAP1 that promotes autoubiquitination. Dueber EC, Schoeffler AJ, Lingel A, Elliott JM, Fedorova AV, Giannetti AM, Zobel K, Maurer B, Varfolomeev E, Wu P, Wallweber HJ, Hymowitz SG, Deshayes K, Vucic D, Fairbrother WJ; Science. 2011;334:376-380. PMID:22021857

3: IAPs: from caspase inhibitors to modulators of NF-kappaB, inflammation and cancer. Gyrd-Hansen M, Meier P; Nat Rev Cancer. 2010;10:561-574. PMID:20651737