    New chain ID            Original chain ID

7a4f-pdb-bundle1.pdb:
           A                        AA
           B                        AB
           C                        AC
           D                        AD
           E                        AE
           F                        AF
           G                        AG
           H                        AH
           I                        AI
           J                        AJ
           K                        BA
           L                        BB
           M                        BC
           N                        BD
           O                        BE
           P                        BF
           Q                        BG
           R                        BH
           S                        BI
           T                        BJ
           U                        CA
           V                        CB
           W                        CC
           X                        CD
           Y                        CE
           Z                        CF
           a                        CG
           b                        CH
           c                        CI
           d                        CJ
           e                        DA
           f                        DB
           g                        DC
           h                        DD
           i                        DE
           j                        DF
           k                        DG
           l                        DH
           m                        DI
           n                        DJ
           o                        EA
           p                        EB
           q                        EC
           r                        ED
           s                        EE
           t                        EF
           u                        EG
           v                        EH
           w                        EI
           x                        EJ
           y                        FA
           z                        FB
           0                        FC
           1                        FD
           2                        FE
           3                        FF
           4                        FG
           5                        FH
           6                        FI
           7                        FJ
           8                        GA
           9                        GB

7a4f-pdb-bundle2.pdb:
           A                        GC
           B                        GD
           C                        GE
           D                        GF
           E                        GG
           F                        GH
           G                        GI
           H                        GJ
           I                        HA
           J                        HB
           K                        HC
           L                        HD
           M                        HE
           N                        HF
           O                        HG
           P                        HH
           Q                        HI
           R                        HJ
           S                        IA
           T                        IB
           U                        IC
           V                        ID
           W                        IE
           X                        IF
           Y                        IG
           Z                        IH
           a                        II
           b                        IJ
           c                        JA
           d                        JB
           e                        JC
           f                        JD
           g                        JE
           h                        JF
           i                        JG
           j                        JH
           k                        JI
           l                        JJ
           m                        KA
           n                        KB
           o                        KC
           p                        KD
           q                        KE
           r                        KF
           s                        KG
           t                        KH
           u                        KI
           v                        KJ
           w                        LA
           x                        LB
           y                        LC
           z                        LD
           0                        LE
           1                        LF
           2                        LG
           3                        LH
           4                        LI
           5                        LJ
