Immunogen sequence: EASPESMLSP SHGSNPIEDP LEAETQHKFE MSDSLKEESG TIFGSQIKDA PGEDEEEDGV SEAASLEEPK EEDQGEGYLS EMDNEPPVSE SDDGFSIHNA TLQSHTLADS IPSSPASSQF SVCSEDQEAI QAQKIWKKAI MLVWRAA. Transcriptional repressor that contribute to growth arrest during termi