Immunogen sequence: PGVSANASKA WHQKSHFQNS REWSGKEKWW DGQRDRKAEH WKHKKEESGR ERKKNWGGQE DREPAGRWKE GRPRVEESGS KKE Antigen sequence identity: Mouse 61%; Rat 65%. Regulator of pre-B-cell leukemia transcription factors (BPXs) function. Inhibits the binding of