Immunogen sequence: HMDGKIRLWR NFYDDKKYTY TCLHWHHDMV MDLAFSVTGT SLLSGGRESV LVEWRDATEK NKEFLPRLGA TIEHISVSPA GDLFCTSHSD NKIII Highest antigen sequence identity to the following orthologs: Mouse - 88%, Rat - 88%. Ribosome biogenesis factor. Involved in nuc