detaching dissociation of NF-kappaB-I-kappaB Dissociation of NF-kappaB -I-kappaB is a subtype of detaching: A process that disaggregates a NF-kappaB-I-kappaB to NF-kappaB dimers and I-kappaB. In a resting state, NF-kappaB dimers are bound to I-kappaB proteins, sequestering NF-kappaB in the cytoplasm. Phosphorylation of I-kappaB targets I-kappaB for ubiquitination and proteasomal degradation, thus releasing the NF-kappaB dimers, which can translocate to the nucleus to bind DNA and regulate transcription. GO:0008588 The release of NF-kappaB from specific molecules in the cytoplasm to which it was bound, thereby allowing its translocation into the nucleus.