NF-kappa-B essential modulator (NEMO) also known as inhibitor of nuclear factor kappa-B kinase subunit gamma (IKK-γ) is a protein that in humans is encoded by the IKBKG gene. NEMO is a subunit of the IκB kinase complex that activates NF-κB.[5] The human gene for IKBKG is located on the chromosome band Xq28.[6] Multiple transcript variants encoding different isoforms have been found for this gene.