These NOP ELISA kits are immunodetection tools for measuring the levels of NOP in biological samples. NOP is an alias of the human PNOC gene, which encodes the protein, prepronociceptin. Notably, NOP is known to play a role in chemical synaptic transmission and signal transduction pathways, among other functions. The PNOC protein is 176 amino acid residues in length and 20.3 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. It is known to be a secreted protein. In terms of tissue specificity, it is reported to be highly expressed in the the brain and spinal cord. This protein is known to be cleaved. Other names for this target antigen include N/OFQ and OFQ. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.