Many autoimmune diseases feature functional or genetic defects that can alter NF-kB function. In an animal model of type 1 diabetes and Sjogren’s syndrome, a defective proteasome prevents NK-kB-induced gene transcription by precluding cleavage of IkBa from NF-kB in the cytoplasm. Polymorphisms in such NK-kB related genes as SUMO4, NOD2, IKBL, IRF-5, TNFAIP3, TNF, TNFR1, TNFR2, IL-10 and DLG-5 h...