Sequence alignment between 3qb7(A) and UniProt seq P05112 (IL4_HUMAN):

P05112 (IL4_HUMAN): Interleukin-4 from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150   
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
UniProt: MGLTSQLLPPLFFLLACAGNFVHGHKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS
         ...............................................................................................................................XX...........XX..XX.XX....
PDB seq: --------------------------CDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKE--QSTLENFLERLRVIMQSKWFKC--
                                   -------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---  ----+---------+-------  
                                         10        20        30        40        50        60        70        80        90       100       110       120