Human LILRB1, also known Leukocyte immunoglobulin-like receptor subfamily B member 1, CD85J, ILT2, and LIR-1, GenBank Accession No. NM_006669, a.a 24-458, with C-terminal Avi-Tag™ fused to the Fc portion of Human IgG1 and expressed in a HEK293 cell expression system. MW = 76 kDa. This protein runs at a higher apparent M.W. by SDS-PAGE due to glycosylation. This protein is enzymatically biotinylated using Avi-Tag™ technology.