Rabbit Anti-Human NFkB p65 monoclonal antibody for ChIP, FC, IHC-P, WB. NF kappaB p65 belongs to the Rel family of transcription factors. NF kappaB homo and heterodimers are retained in an inert, non-DNA-binding form in the cytosol by inhibitory molecules in most cells. Activation of NF kappaB occurs predominantly through the phosphorylation and degradation of I kappaB proteins. The free NF kappaB translocates to the nucleus, where it upregulates expression from genes involved in developmental processes, cellular growth, apoptosis, and immune and inflammatory responses. In humans, the gene is located on the q arm of chromosome 11.