Anti-Orphanin FQ antibodies enable researchers to detect and measure the Orphanin FQ antigen in biological samples. This target is a reported synonym of the PNOC gene, which encodes prepronociceptin. This protein is known to function in chemical synaptic transmission and signal transduction pathways, among other biological roles. The human version of Orphanin FQ has a canonical amino acid length of 176 residues and a protein mass of 20.3 kilodaltons, although 2 isoforms have been identified. It is reported to be a secreted protein that is notably expressed in the cerebral cortex. Other names for this target antigen include N/OFQ, NOP, and OFQ. Immunohistochemistry is the most common application for the Orphanin FQ antibodies listed below. ELISA and Western Blot are also common applications.