Human herpesvirus entry mediator A, also known as HVEM, TNFRSF14, CD270, and HVEA, GenBank Accession No. NM_003820, a.a. 37-202 fused to human IgG1 Fc, with C-terminal Avi-tagTM, expressed in a HEK293 cell expression system. MW = 46 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.