The neural cell adhesion molecule L1 is distinct from the N-CAM related group of surface antigens BSP-2 and D2.

Abstract
The neural cell adhesion molecule L1 and the group of N‐CAM related molecules, BSP‐2 and D2 antigen, are immunochemically distinct molecular species. The two groups of surface molecules are also functionally distinct entities, since inhibition of Ca2+‐independent adhesion among early post‐natal mouse cerebellar cells by Fab fragments of both antibodies are at least additive, when compared with equal concentrations of the individual antibodies.