    New chain ID            Original chain ID

9gs0-pdb-bundle1.pdb:
           A                        AA
           B                        AB
           C                        AC
           D                        AD
           E                        AE
           F                        AF
           G                        AI
           H                        AJ
           I                        AK
           J                        AL
           K                        AM
           L                        AN
           M                        AO
           N                        As
           O                        At
           P                        Au
           Q                        Av
           R                        Aw
           S                        Ax
           T                        AG
