This antibody is predicted to react with mouse and rat and reacts with the long form of the human prolactin receptor (hPRLr) protein at ~85-90 kDa, and may also identify the human prolactin receptor intermediate and delta S1 isoforms by western blotting. On immunoprecipitation, this antibody strongly recognizes only the long form of hPRLr. During development reactivity was confirmed with human T-47D breast carcinoma cells.
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.
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Protein Aliases: hPRL receptor; Prl R; PRL-R; Prolactin receptor; secreted prolactin binding protein
Gene Aliases: HPRL; hPRLrI; MFAB; PRLR
UniProt ID: (Human) P16471
Entrez Gene ID: (Human) 5618
Molecular Function: transmembrane signal receptor