    New chain ID            Original chain ID

8y40-pdb-bundle1.pdb:
           E                         E
           I                         I
           H                         H
           L                         L
           G                         G
           K                         K
           F                         F
           J                         J
           A                         A
           B                         B
           C                         C

8y40-pdb-bundle2.pdb:
           D                         D
