    New chain ID            Original chain ID

7a4g-pdb-bundle1.pdb:
           A                        AA
           B                        AB
           C                        AC
           D                        AD
           E                        AE
           F                        AF
           G                        AG
           H                        AH
           I                        AI
           J                        AJ
           K                        AK
           L                        AL
           M                        AM
           N                        AN
           O                        AO
           P                        BA
           Q                        BB
           R                        BC
           S                        BD
           T                        BE
           U                        BF
           V                        BG
           W                        BH
           X                        BI
           Y                        BJ
           Z                        BK
           a                        BL
           b                        BM
           c                        BN
           d                        BO
           e                        CA
           f                        CB
           g                        CC
           h                        CD
           i                        CE
           j                        CF
           k                        CG
           l                        CH
           m                        CI
           n                        CJ
           o                        CK
           p                        CL
           q                        CM
           r                        CN
           s                        CO
           t                        DA
           u                        DB
           v                        DC
           w                        DD
           x                        DE
           y                        DF
           z                        DG
           0                        DH
           1                        DI
           2                        DJ
           3                        DK
           4                        DL
           5                        DM
           6                        DN
           7                        DO
           8                        EA
           9                        EB

7a4g-pdb-bundle2.pdb:
           A                        EC
           B                        ED
           C                        EE
           D                        EF
           E                        EG
           F                        EH
           G                        EI
           H                        EJ
           I                        EK
           J                        EL
           K                        EM
           L                        EN
           M                        EO
           N                        FA
           O                        FB
           P                        FC
           Q                        FD
           R                        FE
           S                        FF
           T                        FG
           U                        FH
           V                        FI
           W                        FJ
           X                        FK
           Y                        FL
           Z                        FM
           a                        FN
           b                        FO
           c                        GA
           d                        GB
           e                        GC
           f                        GD
           g                        GE
           h                        GF
           i                        GG
           j                        GH
           k                        GI
           l                        GJ
           m                        GK
           n                        GL
           o                        GM
           p                        GN
           q                        GO
           r                        HA
           s                        HB
           t                        HC
           u                        HD
           v                        HE
           w                        HF
           x                        HG
           y                        HH
           z                        HI
           0                        HJ
           1                        HK
           2                        HL
           3                        HM
           4                        HN
           5                        HO
           6                        IA
           7                        IB
           8                        IC
           9                        ID

7a4g-pdb-bundle3.pdb:
           A                        IE
           B                        IF
           C                        IG
           D                        IH
           E                        II
           F                        IJ
           G                        IK
           H                        IL
           I                        IM
           J                        IN
           K                        IO
           L                        JA
           M                        JB
           N                        JC
           O                        JD
           P                        JE
           Q                        JF
           R                        JG
           S                        JH
           T                        JI
           U                        JJ
           V                        JK
           W                        JL
           X                        JM
           Y                        JN
           Z                        JO
           a                        KA
           b                        KB
           c                        KC
           d                        KD
           e                        KE
           f                        KF
           g                        KG
           h                        KH
           i                        KI
           j                        KJ
           k                        KK
           l                        KL
           m                        KM
           n                        KN
           o                        KO
           p                        LA
           q                        LB
           r                        LC
           s                        LD
           t                        LE
           u                        LF
           v                        LG
           w                        LH
           x                        LI
           y                        LJ
           z                        LK
           0                        LL
           1                        LM
           2                        LN
           3                        LO
