Immunogen sequence: MTGDCMPVLV LMAAVLTVTG AVPVARLRGA LPDARGCHIA QFKSLSPQEL QAFKRAKDAL EESLLLKDCK CRSRLFPRTW DLRQLQVRER PVALEAELAL Positive Samples: Mouse liver. IL-28B encodes a cytokine distantly related to type I interferons and the IL-10 family. IL-28