Immunogen sequence: MTDTAEAVPK FEEMFASRFT ENDKEYQEYL KRPPESPPIV EEWNSRAGGN QRNRGNRLQ Highest antigen sequence identity to the following orthologs: Mouse - 86%, Rat - 86%. FAM103A1, also named as RNMT-activating mini protein, is a 118 amino acid protein,