Immunogen sequence: MAGVRSLRCS RGCAGGCECG DKGKCSDSSL LGKRLSEDSS RHQLLQKWAS MWSSMSEDAS VADMERAQLE EEAAAAEERP LVF Highest antigen sequence identity to the following orthologs: Mouse - 41%, Rat - 57%. C21orf45, also named as MIS18A, C21orf46 and FASP1, is r