Immunogen sequence: SKPGGVGTGL GGSSGTETLE KKKKNSLKSW KGGKEEAAGD GPVSEKPPAE SVGNGGSKYS QEVMQSLSIL RTAMQGEGKF IFVGTLKMGH RHQYQEEMIQ RYLSDAEERF LAEQKQKEAE RKIMNGGIGG GPPPAKKPEP DAREEQPTGP PAESRAMAFS TGYPGDFTIP R. Negative regulator of the non-canonical NF-k