Neuroligin-1 (NLGN1) protein promotes cell interactions with members of the neuroligin family, affecting synaptic function and signaling. It recruits and aggregates synaptic proteins, promotes synapse formation and specifies excitatory synapses. Neuroligin-1/NLGN1 Protein, Mouse (HEK293, His) is the recombinant mouse-derived Neuroligin-1/NLGN1 protein, expressed by HEK293 , with C-His labeled tag.