    New chain ID            Original chain ID

11lx-pdb-bundle1.pdb:
           A                        AJ
           B                        AO
           C                        Aa
           D                        Ab
           E                        Ah
           F                        An
           G                        Aq
           H                        Az
           I                        Bh
           J                        CJ
           K                         H
           L                         I
           M                         M
           N                         V
           O                         W
           P                         X
           Q                         n
           R                         o
           S                         s
           T                         t
