    New chain ID            Original chain ID

7d5s-pdb-bundle1.pdb:
           A                        3A
           B                        5A
           C                        SA
           D                        SG
           E                        SK
           F                        SN
           G                        SO
           H                        SP
           I                        SR
           J                        ST
           K                        SY
           L                        Sd
           M                        3B
           N                        3C
           O                        3D
           P                        3E
           Q                        3F
           R                        3G
           S                        3H
           T                        A4
           U                        A5
           V                        A8
           W                        A9
           X                        AE
           Y                        AF
           Z                        AG
           a                        B1
           b                        B2

7d5s-pdb-bundle2.pdb:
           A                        B3
           B                        B8
           C                        BE
           D                        B6
           E                        5B
           F                        5C
           G                        5D
           H                        5E
           I                        5F
           J                        5G
           K                        5H
           L                        5I
           M                        5J
           N                        5K
           O                        RC
           P                        RD
           Q                        RE
           R                        RF
           S                        RG
           T                        RH
           U                        RI
           V                        RJ
           W                        RK
           X                        RN
           Y                        RO
           Z                        RQ
           a                        RS
           b                        RT
           c                        RW
           d                        X1
