Immunogen sequence: SSVYLYYDPD YSFLSLGVYS ALREIAFTRQ LHEKTSQLSY YYMGFYIHSC PKMKYKGQYR PSDLLCPETY VWVPIEQCLP SLENSKYCRF NQDPEA. Arginyl-tRNA-protein transferase (ATE1), also designated arginyltransferase 1, belongs to the R-transferase family of proteins.