Specificity
This antibody recognises nuclear factor NF-kappa-B p65 subunit (NFkB p65), also known as nuclear factor of kappa light polypeptide gene enhancer in B-cells 3 and transcription factor p65, when phosphorylated at serine 536. NFkB is a heterodimeric DNA binding protein which was originally identified consisting of p65 and p50 (NFkB1) subunits. Other subunits, including p52 (NFkB2), cRel, and RelB exist.NFkB is ubiquitously expressed, and functions as a second messenger which upon activation leads to the transcription of a number of genes. NFkB is activated by a number of agents, including pro-inflammatory cytokines and bacterial lipopolysaccharide, and is essential for the maturation of T cells and regulation of their survival and activation.Phosphorylation of serine 536 contributes to NFkB transactivation and increases p65 transcription activity.