Immunogen sequence: FTGAQSGGPQ QNPGVLDGPQ KKPEGPIQAM MAQSQSLGKG PGPRTDVGAP FGPQGHRDVP FSPDEMVPPS MNSQSGTIGP DHLDHMTPEQ IAWLKLQQEF YEEKRRKQEQ VVVQQCSLQD Highest antigen sequence identity to the following orthologs: Mouse - 93%, Rat - 95%. BCL9 is involved