(Signaling Lymphocytic Activation Molecule Family Member 1 (SLAMF1))
High-affinity self-ligand important in bidirectional T- cell to B-cell stimulation. SLAM-induced signal-transduction events in T-lymphocytes are different from those in B-cells. Two inhibitor SH2D1A acts as a negative regulator and another in which protein-tyrosine phosphatase 2C (PTPN11)-dependent signal transduction operates.