Prolactin (PRL) is a pituitary hormone involved in the stimulation of milk production, salt and water regulation, growth, development and reproduction. PRL exerts its influence on different cell types through a signal transduction pathway which begins with the binding of the hormone to a transmembrane PRL receptor. Immunoreactive PRL receptor (PRLR), a member of the cytokine receptor family, varies in size (short and long forms) with tissue source and species, from ~40 kDa to 100 kDa. PRLR consists of at least three separate domains: an extracellular region with 5 cysteines which contains the prolactin binding site, a single transmembrane domain and a cytoplasmic region, the length of which appears to influence ligand binding and regulate cellular function.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: hPRL receptor; hPRLrI; Lactogen receptor; PRL-R; Prolactin receptor; secreted prolactin binding protein
Gene Aliases: HPRL; hPRLrI; MFAB; PRLR; RATPRLR