Tags: Protein.
DNA-binding protein RFXANK is a protein that in humans is encoded by the RFXANK gene.Major histocompatibility (MHC) class II molecules are transmembrane proteins that have a central role in development and control of the immune system. The protein encoded by this gene along with regulatory factor X-associated protein and regulatory factor-5 forms a complex that binds to the X box motif of certain MHC class II gene promoters and activates their transcription.