Human LILRB4, also known as leukocyte immunoglobulin like receptor B4, and CD85K, GenBank Accession No. NM_001278426, a.a 17-257, with C-terminal Avi-His-Tag, expressed in a HEK293 cell expression system. This protein is enzymatically biotinylated using Avi-Tag™ technology. Biotinylation is confirmed to be ≥90%. MW = 31 kDa. This protein runs at a higher molecular weight due to glycosylation.