Final answer:
N-CAM, which mediates interactions between neural cells, is a member of the immunoglobulin superfamily (IgSF) proteins and not cadherins, selectins, or lectins.
Step-by-step explanation:
N-CAM mediates interactions between neural cells and is a member of the immunoglobulin superfamily (IgSF) proteins. These proteins are typically involved in immune responses but also play a crucial role in neural development through cell adhesion. Intercellular Cell Adhesion Molecules (ICAMs) like NCAMs have sugary immunoglobulin domains that enable specific neural connections to be established and maintained. Among the options provided, cadherins are calcium-dependent proteins involved in forming cohesive tissues, while selectins are involved in blood clotting, and lectins are carbohydrate-binding proteins.