Anti-NFĸB Antibody, p65, clone 1G10.2

NFĸB (Nuclear Factor kappa B) represents a group of transcription factors that are structurally related and evolutionarily conserved proteins related to the proto-oncogene c-Rel. The five members in mammals includes Rel (cRel), RelA (p65), RelB, NFĸB1 (p50 and its precursor p105), and NFĸB2 (p52 and its precursor p100)1, 2. NFĸB/Rel proteins exist as homo- or heterodimer complexes. In a majority of unstimulated cells, the NFĸB transcription factors are bound to the inhibitory IĸB proteins and retained in the cytoplasm in their inactive form. Upon stimulation by multiple inducers, IĸBalpha is rapidly phosphorylated and degraded. This results in the release of the NFĸB complex, most commonly the p105/p65 heterodimer. The p105 subunit is cleaved into its active p50 form. This cleavage exposes the NLS sequence on the p50 subunit. The p50/p65 heteroduplex then translocates to the nucleus where it activates gene transcription.