Human SLAM/CD150 Biotinylated Antibody

SLAM (also IPO-3 and CD150) is a 70‑80 kDa member of the CD2 family of molecules. It is a costimulatory receptor that mediates T cell activation via SAP. SLAM is found on B cells, dendritic cells, macrophages, stem cells and Th1 T cells. SLAM engages in homophilic interactions. Mature human SLAM is 315 amino acids (aa) in length. It is a type I transmembrane glycoprotein whose extracellular domain contains one V-type and one C2-type Ig-like domain (aa 21‑237). There is a 77 aa SH2‑binding cytoplasmic domain. Four potential splice variants are suggested. One shows a deletion of aa 234‑263 (potentially soluble), while three others show aa substitutions; i.e.‑a ten aa substitution for aa 289‑335, a six aa substitution for aa 264‑335 and a 20 aa substitution for aa 125‑335 (potentially soluble). Over aa 1‑236, human SLAM shares 60% aa identity with mouse SLAM.