Positive Samples: Mouse spleen Immunogen sequence: MVTHSKFPAA GMSRPLDTSL RLKTFSSKSE YQLVVNAVRK LQESGFYWSA VTGGEANLLL SAEPAGTFLI RDSSDQRHFF TLSVKTQSGT KNLRIQCEGG SFSLQSDPRS TQPVPRFDCV LKLVHHYMPP PGAPSFPSPP TEPSSEVPEQ PSAQPLPGSP PRRAYYIYSG GEKIPLVLSR PLSSN