Signaling Lymphocytic Activation Molecule Family, Member 2 (SLAMF2)

BLAST1 is the designation used for an activation-associated cell surface glycoprotein of 40 to 45 kD expressed primarily in mitogen-stimulated human lymphocytes. The protein sequence predicted by the cDNA encoding BLAST1 indicates that BLAST1 is a member of the immunoglobulin supergene family. Yokoyama (1991) identified the BLAST1 activation/adhesion molecule as CD48.

Using recombinant human natural killer (NK) cell-activating ligand 2B4 fused to domains 3 and 4 of rodent Cd4  and flow cytometric analysis, Brown et al. (1998) demonstrated that CD48 binds to 2B4. BIAcore surface plasmon resonance analysis showed that the affinity of CD48 for 2B4 is approximately 10-fold higher than that shown for CD48 and CD2.