Sequence alignment between 2ffk(B) and UniProt seq P13236 (CCL4_HUMAN):

P13236 (CCL4_HUMAN): C-C motif chemokine 4 from Homo sapiens
                 10        20        30        40        50        60        70        80        90  
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+--
UniProt: MKLCVTVLSLLMLVAAFCSPALSAPMGSDPPTACCFSYTARKLPRNFVVDYYETSSLCSQPAVVFQTKRSKQVCADPSESWVQEYVYDLELN
         ...................................................................XX.X.....................
PDB seq: -----------------------APMGSDPPTACCFSYTARKLPRNFVVDYYETSSLCSQPAVVFQTAASAQVCADPSESWVQEYVYDLELN
                                ---------+---------+---------+---------+---------+---------+---------
                                        10        20        30        40        50        60