Rabbit anti-Rat Enkephalin polyclonal antibody for IHC, IF, IHC-P. IHC, IF, Suitable for frozen and paraffin sectionsAn enkephalin is a pentapeptide involved in regulating nociception in the body. The enkephalins are termed endogenous ligands, or specifically endorphins, as they are internally derived and bind to the body"s opioid receptors. Discovered in 1975, two form