Anti-NLGN4Y antibodies are used in the immunodetection of the protein neuroligin 4 Y-linked. In humans, the canonical protein has a reported length of 816 amino acid residues and a mass of 92 kDa. Its subcellular localization is in the cell membrane. Up to 4 different isoforms have been reported for this protein. It is reported to be expressed in fetal and adult brain, prostate and testis. A member of the Type-B carboxylesterase/lipase protein family, NLGN4Y is known to be involved with chemical synaptic transmission. Post-translational modifications have been described, including glycosylation. NLGN4Y is also used as a cellular marker for characterizing neuronal cells. Synonyms for this target antigen include HNL4Y and alternative HNL4Y. Some NLGN4Y antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.