Receptor expression-enhancing protein XALGTAPSGE TVPAMSAAMR ERFDRFLHEK NCMTDLLAKL EAKTGVNRSF IALGVIGLVA LYLVFGYGAS LLCNLIGFGY PAYISIKAIE SPNKEDDTQW LTYWVVYGVF SIAEFFSDIF LSWFPFYYML KVWSGLGFLL PRCLL