Zeta Opioid Receptor: Proteins and Enzymes

Zeta Opioid Receptor is the receptor for opioid growth factor (OGF), also known as Met-enkephalin. Met-enkephalin (met-Enk) is an opioid peptide that acts via three main subtypes of receptors referred to as mu, delta and zeta receptors. The first two receptor subtypes mediate the classic opioid effects of met-Enk, wheras zeta-receptors are reported...