    New chain ID            Original chain ID

9qeh-pdb-bundle1.pdb:
           A                         1
           B                         2
           C                         3
           D                         4
           E                         L
           F                         A
           G                         B
           H                         C
           I                         D
           J                         E
           K                         F
           L                         G
           M                         H
           N                         I
           O                         J
           P                         K
           Q                         M
           R                         N
           S                         O
           T                         P
           U                         Q
           V                         R
           W                         S
           X                         T
           Y                         U
           Z                         V
           a                         W
           b                         X
           c                         Z
           d                         8
           e                        11
