Alomone Labs is pleased to offer a highly specific antibody directed against an epitope of the rat κ-opioid receptor. Anti-κ-Opioid Receptor (OPRK1) (extracellular) Antibody (#AOR-012) can be used in western blot analysis. The antibody recognizes an extracellular epitope and thus is ideal for detecting the receptor in living cells. The antibody was designed to recognize κ-opioid receptor from mouse, rat and human samples.