Immunogen sequence: SPTEFEVVLYL NQMGVFNFVD DGSLPGCAVL KLSDGRKRSM SLWVEFITAS GYLSARKIRS RFQTLVAQAV DKCSYRDVVK Highest antigen sequence identity to the following orthologs - mouse 100%, rat 100%. This gene is similar to the MAB-21 cell fate-determining gen