    New chain ID            Original chain ID

8g0d-pdb-bundle1.pdb:
           C                         C
           A                         A
           B                         B
           F                         F
           D                         D
           E                         E
           G                         G
           H                         H
           b                         b
           d                         d
           3                         3
           4                         4
           5                         5
           6                         6
           7                         7
           8                         8
           9                         9
           1                         1
           2                         2
           a                         a
