Sequence alignment between 1jch(B) and UniProt seq P02984 (IMM3_ECOLX):

P02984 (IMM3_ECOLX): Colicin E3 immunity protein from Escherichia coli
                 10        20        30        40        50        60        70        80     
         ---------+---------+---------+---------+---------+---------+---------+---------+-----
UniProt: MGLKLDLTWFDKSTEDFKGEEYSKDFGDDGSVMESLGVPFKDNVNNGCFDVIAEWVPLLQPYFNHQIDISDNEYFVSFDYRDGDW
PDB seq: -GLKLDLTWFDKSTEDFKGEEYSKDFGDDGSVMESLGVPFKDNVNNGCFDVIAEWVPLLQPYFNHQIDISDNEYFVSFDYRDGDW
          ---------+---------+---------+---------+---------+---------+---------+---------+----
                  10        20        30        40        50        60        70        80