Prolactin
Medical test
Prolactin, also known as lactotropin and mammotropin, is a protein best known for its role in enabling mammals to produce milk. It is influential in over 300 separate processes in various vertebrates, including humans. Wikipedia
Cellular component: extracellular region; endosome lumen; secretory granule; extracellular space
Molecular function: prolactin receptor binding; protein binding; hormone activity