RXRB protein is a receptor for retinoic acid and forms a heterodimer, especially RAR/RXR, which regulates gene expression through the retinoic acid response element (RARE) . RXRB exhibits homodimerization and forms heterodimers with other retinoic acid receptor family members. RXRB Protein, Human is the recombinant human-derived RXRB protein, expressed by E. coli , with tag free.