Immunogen sequence: MDDIKVFQNE VLGTLQRGKE ENISCDNLVL EINSLKYAYN ISLKEVMQVL SHVVLEFPLQ QMDSPLDSSR YCALLL. This gene encodes one of five subunits of eukaryotic translation initiation factor 2B, a GTP exchange factor for eukaryotic initiation factor 2 and a