HEK293T cells were transfected with a firefly luciferase reporter plasmid encoding the the NF-κB promoter plus a TK renilla plasmid and an increasing dose of flag-tagged MARCH2 plasmid (50, 100, 200, 400 ng) plus expression plasmids for TRAF 6, TRAF 2, NEMO for 24 h. Results are expressed relative to those of renilla luciferase alone (Internal control). 