Sequence alignment between 4z15(A) and UniProt seq P14174 (MIF_HUMAN):

P14174 (MIF_HUMAN): Macrophage migration inhibitory factor from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110     
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
UniProt: MPMFIVNTNVPRASVPDGFLSELTQQLAQATGKPPQYIAVHVVPDQLMAFGGSSEPCALCSLHSIGKIGGAQNRSYSKLLCGLLAERLRISPDRVYINYYDMNAANVGWNNSTFA
         .X.................................................................................................................
PDB seq: -XMFIVNTNVPRASVPDGFLSELTQQLAQATGKPPQYIAVHVVPDQLMAFGGSSEPCALCSLHSIGKIGGAQNRSYSKLLCGLLAERLRISPDRVYINYYDMNAANVGWNNSTFA
          --------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
                 10        20        30        40        50        60        70        80        90       100       110