Neuroligin-1/NLGN1 protein is a cell surface protein that is actively involved in synaptic function and transmission by interacting with members of the neuroligin family. Although NLGN1 is not essential for initial synapse formation, it is involved in the formation of de novo presynaptic structures. NLGN1 Protein, Human (HEK293, C-His) is the recombinant human-derived NLGN1 protein, expressed by HEK293 , with C-His labeled tag.