    New chain ID            Original chain ID

9e17-pdb-bundle1.pdb:
           K                         K
           F                         F
           D                         D
           E                         E
           C                         C
           A                         A
           H                         H
           J                         J
           O                         O
           B                         B

9e17-pdb-bundle2.pdb:
           G                         G
           I                         I
