Immunogen sequence: PGNKKPRGQRW KEPPGEEPVR KKRGRPMTKN LDPDPEPPSP DSPTETFAAP AEVRHFTDGS FPAGFVLQLF SHTQLRGPDS KDSPKDREVA EG Highest antigen sequence identity to the following orthologs - mouse 81%, rat 80%. Negatively regulates the transcriptional activat