Sequence alignment between 1b50(A) and UniProt seq P10147 (CCL3_HUMAN):

P10147 (CCL3_HUMAN): C-C motif chemokine 3 from Homo sapiens
                 10        20        30        40        50        60        70        80        90  
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+--
UniProt: MQVSTAALAVLLCTMALCNQFSASLAADTPTACCFSYTSRQIPQNFIADYFETSSQCSKPGVIFLTKRSRQVCADPSEEWVQKYVSDLELSA
         ................................................X...........................................
PDB seq: -----------------------SLAADTPTACCFSYTSRQIPQNFIAAYFETSSQCSKPGVIFLTKRSRQVCADPSEEWVQKYVSDLELSA
                                ---------+---------+---------+---------+---------+---------+---------
                                        10        20        30        40        50        60