Immunogen sequence: FIVNTNVPRA SVPDGFLSEL TQQLAQATGK PPQYIAVHVV PDQLMAFGGS SEPCALCSLH SIGKIGGAQN RSYSKLLCGL LAERLRISPD RVYINYYDMN AANVGWNN. MIF (macrophage migration inhibitory factor) was one of the first cytokine activities to be discovered and was ini