Immunogen sequence: KEELMHGECV KEEKDFLKKE IVDDTKVKEE PPINHPVGCK RKLAMSRCET CGTEEAKYRC PRCMRYSCSL PCVKKHKAEL TCNGVRDKTA YISIQQFTEM NLL Highest antigen sequence identity to the following orthologs: Mouse - 74%, Rat - 72%. Required for box C/D snoRNAs accum