NF-kappaB p50/p65 complex Note that the p50 subunit is encoded by NFKB1 gene in human and the p65 subunit is encoded by the RELA gene in human. Similar nomenclature is used in other vertebrate species. The p50 subunit has a precursor form p105 in some publications. NF-kappa p105/p65 complex NF-kappa p50/RelA complex NF-kappa B1/p65 complex bf NF-kappa B1/RelA complex NF-kappa p105/RelA complex 2010-05-05T10:45:13Z cellular_component A heterodimer of NF-kappa B p50 and p65 subunits. GO:0035525 NF-kappaB complex