These Kop ELISA kits are immunodetection tools for measuring the levels of Kop in biological samples. Kop is an alias of the human OPRK1 gene, which encodes the protein, opioid receptor kappa 1. Notably, Kop is known to play a role in carbohydrate metabolism and homeostasis and the cellular response to lipopolysaccharides, among other functions. The OPRK1 protein is 380 amino acid residues in length and 42.6 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. It is localized to the cell membrane of the cell. In terms of tissue specificity, it is notably expressed in the brain and placenta. This protein is known to be glycosylated. Other names for this target antigen include K-OR-1 and KOR. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.