    New chain ID            Original chain ID

9e6q-pdb-bundle1.pdb:
           A                         1
           B                         2
           C                         3
           D                        AA
           E                        AB
           F                        AC
           G                        AD
           H                        AE
           I                        AF
           J                        AG
           K                        AH
           L                        AI
           M                        AJ
           N                        AK
           O                        AL
           P                        AM
           Q                        AN
           R                        AO
           S                        AP
           T                        AQ
           U                        AR
           V                        AS

9e6q-pdb-bundle2.pdb:
           A                        AT
           B                        AU
           C                        AV
           D                        AW
           E                        AX
           F                        AY
           G                        AZ
           H                        Aa
           I                        Ab
           J                        Ac
           K                        Ad
           L                        Ae
           M                        Af
           N                        Ag
           O                        Ah
           P                        Ai
           Q                        Aj
           R                        Ak
