    New chain ID            Original chain ID

9zn8-pdb-bundle1.pdb:
           L                         L
           I                         I
           J                         J
           K                         K
           E                         E
           A                         A
           C                         C

9zn8-pdb-bundle2.pdb:
           D                         D
           B                         B
           H                         H
           F                         F
           G                         G
