In direct ELISAs, less than 5% cross-reactivity with recombinant rat NLGN1, recombinant human (rh) NLGN2 and rhNLGN3 is observed. Reconstitute at 0.2 mg/mL in sterile PBS. Endoxin level is <0.10 EU per 1 μg of the antibody by the LAL method. Neuroligin-4