The 52263 monoclonal antibody specifically binds to the Leptin Receptor (Leptin R/LEPR) which is also known as CD295. CD295 is a type I transmembrane glycoprotein that belongs to the type I Cytokine Receptor family within the Immunoglobulin gene superfamily. Multiple isoforms of CD295 have been detected including a long form with a large cytoplasmic domain capable of signal transduction. Several receptor isoforms with short cytoplasmic domains that lack the capacity to transduce signals have also been reported. CD295 is widely expressed by a variety of cells within different tissues. CD295 binds to leptin with high affinity and plays important roles in lipid metabolism, fertility, angiogenesis, bone formation and immunity.