Human Receptor Activator of Nuclear Factor κ B (RANK), also known as TRANCE Receptor and TNFRSF11A, (Genbank Accession No. NM_003839), a.a. 30-212, fused at the C-terminus to the Fc portion of human IgG1, with a C-terminal Avi-tag, expressed in a HEK293 cell expression system. This protein is enzymatically biotinylated using AviTagTM technology. MW = 49 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation